UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K10-K/A

(Amendment No. 1)

FOR THE FISCAL YEAR ENDED December 30, 2011

OR

FOR THE TRANSITION PERIOD FROM              TO             

COMMISSION FILE NUMBER 0-24343

The Hackett Group, Inc.

(Exact name of registrant as specified in its charter)

(305) 375-8005

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ¨    No  x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act.    Yes  ¨    No  x

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check One):

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

The aggregate market value of the common stock held by non-affiliates of the registrant was $128,301,791 on July 1, 2011 based on the last reported sale price of the registrant’s common stock on the NASDAQ Global Market.

The number of shares of the registrant’s common stock outstanding on February 17, 2012 was 40,884,440.

DOCUMENTS INCORPORATED BY REFERENCE

Part III of the Form 10-K incorporates by reference certain portions of the registrant’s proxy statement for its 2012 Annual Meeting of Shareholders filed with the Commission not later than 120 days after the end of the fiscal year covered by this report.

EXPLANATORY NOTE

This Amendment No. 1 on Form 10-K/A (this “Amendment”) to the Annual Report on Form 10-K of The Hackett Group, Inc. (the “Company”) for the fiscal year ended December 30, 2011, initially filed with the Securities and Exchange Commission (the “SEC”) on February 24, 2012 (the “Original Filing”), is being filed to correct certain administrative errors in the Original Filing. The Original Filing inadvertently (i) did not include a conformed signature on the report of independent registered accounting firm from BDO USA, LLP (“BDO”) included in Item 8, (ii) did not include a conformed signature on the report of independent registered accounting firm from BDO included in Item 9A, and (iii) did not include a conformed signature on the consent from BDO in exhibit 23.1.

This Amendment No. 1 is being filed solely to file the reports of independent registered accounting firm and to file a corrected Exhibit 23.1 with conformed signatures that were intended to be filed with the Original Filing.

In addition, pursuant to the rules of the SEC, “Item 8. Financial Statements and Supplementary Data” is being filed in its entirety in this Amendment, however the only change in Item 8 from the Original Filing has been to add the conformed signature to the report of independent registered accounting firm. Further, the exhibit list included in Item 15 of Part IV of the Original Filing has been amended to contain current dated certifications from the Company’s Chief Executive Officer and Chief Financial Officer, as required by Section 302 of the Sarbanes-Oxley Act of 2002. The certifications of the Company’s Chief Executive Officer and Chief Financial Officer are attached as exhibits to this Amendment.

Except for the foregoing amended information, this Amendment does not alter or update any other information contained in the Original Filing. Therefore, this Amendment should be read together with other documents that the Company has filed with the SEC subsequent to the Original Filing. Information in such reports and documents updates and supersedes certain information contained in the Original Filing.

THE HACKETT GROUP, INC.

FORM 10-K

TABLE OF CONTENTS

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This report and the information incorporated by reference in it include “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. We intend the forward-looking statements to be covered by the safe harbor provisions for forward-looking statements in these sections. All statements regarding our expected financial position and operating results, our business strategy, our financing plans and forecasted demographic and economic trends relating to our industry are forward-looking statements. These statements can sometimes be identified by our use of forward-looking words such as “may,” “will,” “anticipate,” “estimate,” “expect,” or “intend” and similar expressions. These statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from the results, performance or achievements expressed or implied by the forward-looking statements. We cannot promise you that our expectations in such forward-looking statements will turn out to be correct. Factors that impact such forward-looking statements include, among others, our ability to attract additional business, the timing of projects and the potential for contract cancellation by our customers, changes in expectations regarding the business and information technology industries, our ability to attract and retain skilled employees, possible changes in collections of accounts receivable due to the bankruptcy or financial difficulties of our customers, risks of competition, price and margin trends, and changes in general economic conditions, foreign exchange rates and interest rates. An additional description of our risk factors is described in Part I – Item 1A. “Risk Factors”. We undertake no obligation to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

PART I

GENERAL

On January 1, 2008, we changed our corporate name from Answerthink, Inc. (“Answerthink”) to The Hackett Group, Inc. (“Hackett”). We were originally incorporated on April 23, 1997. All prior references to Answerthink will now be reflected as Hackett as if the name change was effected for all years presented. Hackett is a global strategic advisory firm and a leader in best practice advisory, benchmarking, and transformation consulting services, including shared services, offshoring and outsourcing advice. Utilizing best practices and implementation insights from more than 7,000 benchmarking studies, executives use Hackett’s empirically based approach to quickly define and prioritize initiatives to enable world-class performance. Through its Archstone Consulting group (acquired in November 2009), Hackett offers Strategy and Operations consulting services in the Consumer and Industrial Products, Pharmaceutical, Manufacturing and Financial Services industry sectors. Through its REL group, Hackett offers working capital solutions focused on delivering significant cash flow improvements. Through its Enterprise Resource Planning Solutions group (“ERP Solutions”), Hackett offers business application consulting services that help maximize returns on information technology (“IT”) investments. Hackett has worked with over 3,000 major corporations and government agencies, including 97% of the Dow Jones Industrials, 86% of the Fortune 100, 90% of the DAX 30 and 48% of the FTSE 100.

In this Form 10-K, unless the context otherwise requires, “Hackett,” the “Company,” “we,” “us,” and “our” refer to The Hackett Group, Inc. and its subsidiaries and predecessors.

As expected, during 2011 we experienced gradual economic and client demand improvement in U.S. and Western European markets that we primarily serve, consistent with the tepid economic growth that these markets experienced. This was a noticeable improvement from the challenging economic environment that we experienced throughout most of 2009, but less than would be expected in a normal economic recovery. As we head into 2012, we expect gradual improvement in economic conditions in the U.S., however, we will be more cautious about our expectation for improved demand in Western Europe. Global organizations will continue to recognize the need to drive sustainable productivity improvement as they look to be competitive in the growing but complex global economy. Global growth opportunities require organizations to build global standards and to drive operating excellence based on the regional growth opportunities defined by the markets that they serve. We believe that many organizations have yet to make the global and regional organizational changes commensurate with the varying regional market conditions. We believe that our offerings are well aligned with the demands that all organizations will continue to experience during a period of gradual but continued global volatility. We will continue to ensure that our clients understand that our unique intellectual capital along with our expanding implementation expertise will enable them to make the necessary improvements in a targeted and timely manner.

Specifically, organizations must make certain that they have an operating platform or service delivery strategy that ensures that their underlying business processes allow them to strategically support their operations and to optimize their results in the current economic environment. To do so, organizations will have to understand and decide how best to organize, enable, source and manage their critical business processes while leveraging global standards, but executing based on the specific regional requirements. We believe companies will continue to place increased emphasis on risk management and tangible return on their business and technological investments. We believe large enterprises will continue to focus their performance improvement spending on strategies and tools that help them generate more value from their business investments in the form of enhanced productivity and efficiency. We

also expect companies to continue to look for ways to centralize, standardize and automate business processes and to do so by leveraging educated, low-cost labor markets. In today’s environment, clients must be clearly convinced that you are uniquely qualified to help them achieve their targeted results in a timely manner.

OUR PROPRIETARY BEST PRACTICE IMPLEMENTATION INTELLECTUAL CAPITAL

Hackett uses its proprietary Best Practice Implementation (“BPI”) intellectual capital to help clients improve their performance. Our benchmark offerings allow clients to empirically quantify their performance improvement opportunity at a process level. Utilizing the performance metrics and our vast repository of best practices, combined with the global strategy and implementation insight of our transformation and technology associates, Hackett has created a series of process and technology tools that allow clients to effect proven sustainable performance improvement. Our proprietary BPI intellectual capital, which is imbedded within our global delivery methodology, allows us to help clients accelerate their time to benefit.

Our BPI approach leverages our inventory of Hackett-Certified™ practices, observed through benchmark and other BPI engagements, to correlate best practices with superior performance levels. We use Hackett intellectual capital in the form of best practice process flows and software configuration guides to integrate Hackett’s empirically proven best practices directly into business processes and workflows that are enabled by enterprise software applications. The repository of best practice process flows and software configuration guides reside in the Best Practice Intelligence Center portal and are used throughout the term of a project to ensure that best practices are identified and implemented. This coordinated approach addresses people, process, information access and technology.

Because Hackett solutions are based on Hackett-Certified™ practices, we believe that clients gain significant advantages. Clients can have confidence that their solutions are based on strategies from the world’s leading companies. More importantly, Hackett solutions deliver enhanced efficiency, improved effectiveness, increased flexibility, optimized return on investment and reduced implementation risk.

The BPI approach often begins with a clear understanding of current performance, which is gained through benchmarking key processes and comparing the results to world-class levels and industry standards captured in the Hackett database. We then help clients prioritize and select the appropriate best practices to implement through a coordinated performance improvement strategy. Without a coordinated strategy that addresses the four key business drivers of people, process, technology and information, we believe companies risk losing a significant portion of business case benefits of their investments. We have designed detailed best practice process flows based on Hackett’s deep knowledge of world-class business performance which enable clients to streamline and automate key processes, and generate performance improvements quickly and efficiently at both the functional and enterprise level.

Similarly, we integrate Hackett-Certified™ practices directly into technology solutions. We believe it is imperative that companies simplify and automate processes to meet best practice standards before new technology implementations and upgrades are completed. The automation of inefficient processes only serves to continue to drive up costs, cycle times and error rates. We have completed detailed fit-gap analyses in most functional areas of major business application packages from Oracle, Hyperion and SAP to determine their ability to support best practices. Application-specific tools, implementation guides and process flows allow us to optimize the configuration of ERP software, while limiting customization. BPIs establish the foundation for improved performance.

We believe the combination of optimized processes, best practice-based business applications and enhanced business intelligence environments allow our clients to achieve and sustain significant business performance improvement. The specific client circumstances normally dictate how they engage us. Our goal is to be responsive to client needs, and to establish a continuous and trusted relationship. We have developed a series of offerings that allow us to efficiently help the client without regard to where they are in their performance improvement lifecycle.

COMPETITION

The strategic business advisory and technology consulting marketplace continues to be extremely competitive. The marketplace will remain competitive as companies continue to look for ways to improve their organizational effectiveness. Our competitors include strategic consulting firms, executive research advisory firms, international and regional management consulting and IT firms, and the IT services divisions of application software firms. Mergers and consolidations throughout our industry have resulted in higher levels of competition. We believe that the principal competitive factors in the industries in which we compete include skills and capabilities of people, innovative services and product offerings, perceived ability to add value, reputation and client references, price, scope of services, service delivery approaches, technical and industry expertise, quality of services and solutions, ability to deliver results on a timely basis, availability of appropriate resources, and global reach and scale. We believe very few of our competitors have proprietary intellectual capital similar to the performance metrics and BPI insight that emanates from our Transformational Benchmark offering.

In spite of our size relative to our competitor group, we believe our competitive position is strong. With Hackett best practice intellectual capital and its direct link to our BPI approach, we believe we can uniquely assist our clients. Our ability to apply best practices to client operations via proven techniques is at the core of our competitive standing.

Similarly, we believe that Hackett is the definitive source for best practice performance metrics and strategies. Hackett is the only organization that has conducted more than 7,000 benchmark studies over 18 years at over 3,000 clients, generating proprietary data sets spanning performance metrics and correlating best practices with superior performance. The combination of Hackett benchmark data, along with deep expertise and knowledge in evaluating, designing and implementing business transformation strategies, delivers a powerful and distinct value proposition for our clients.

Our culture of client collaboration leverages the power of our cross-functional and service line teams to increase revenue and strengthen relationships. We believe that this culture, along with our intellectual capital-centric approach, gives us a competitive advantage.

STRATEGY

Our focus will be on executing the following strategies:

•

Leverage our dual shore capabilities. Developing an offshore resource capability to support all of our offerings has been a key strategy for our organization. Our facility in Hyderabad, India allows us to increase operational efficiencies while maintaining 24 hour/5 day operations.

OUR OFFERINGS

We offer a comprehensive range of services, including executive advisory programs, benchmarking, business transformation and technology consulting services. With strategic and functional knowledge in finance, human resources, information technology, procurement, supply chain management, corporate services, customer service, and sales and marketing, our expertise extends across the enterprise. We have completed successful engagements in a variety of industries, including automotive, consumer goods, financial services, technology, life sciences, manufacturing, media and entertainment, retail, telecommunications, transportation and utilities.

The Hackett Group

On-demand access provides world-class performance metrics, peer-learning opportunities and best practice implementation advice. The scope of Hackett’s advisory programs is defined by business function (Executive Advisory) and by end-to-end process coverage (Process Advisory). Our advisory programs include a mix of the following deliverables:

Our benchmarking group dates back to 1991, and has measured and evaluated the efficiency and effectiveness of enterprise functions for over 3,000 organizations globally. This includes 97% of the Dow Jones Industrials, 86% of the Fortune 100, 90% of the DAX 30 and 48% of the FTSE 100. Ongoing studies are conducted in a wide range of areas, including SG&A, finance, human resources, information technology, procurement, enterprise performance management, shared service centers and working capital management. Hackett has identified over 1,900 best practices for over 95 processes in these key functional areas and uses proprietary performance measurement tools and data collection processes that enable companies to complete the performance measurement cycle and identify and quantify improvement opportunities in as little as four weeks. Benchmarks are used by our clients to objectively establish priorities, generate organizational consensus, align compensation to establish performance goals, and develop the required business case for business and technology investments.

Our Business Transformation programs help clients develop a coordinated strategy for achieving performance improvements across the enterprise. Our experienced teams utilize Hackett performance measurement data to link performance gains to industry best practices. Our strategic capabilities include operational assessments, process and organization design, change management and the effective application of technology. We combine best practices knowledge with business expertise and broad technology capabilities, which we believe enables our programs to optimize return on client investments in people, process, technology and information.

Through REL, a global leader in generating cash flow improvement from working capital, we offer services which are designed to help companies improve cash flow from operations through improved working capital management, reduced costs and increased service quality.

Through Archstone, we offer services which specialize in industry supply chain and procurement consulting and advisory competencies.

In 2012, we plan to bundle our new Hackett Performance Exchange offering along with our Advisory, Benchmarking and Transformation offerings. This new marketing effort will be named Hackett HD (High Definition). The idea is to allow clients to experience the benefit of our new performance dashboard, whenever appropriate.

ERP Solutions

Our ERP Solutions professionals help clients choose and deploy the software applications that best meet their needs and objectives. Our expertise is focused on the following application providers: Oracle, SAP, and leading time and attendance providers. The group offers comprehensive services from planning, architecture, and vendor evaluation and selection through implementation, customization, testing and integration. Comprehensive fit-gap analyses of all major packages against Hackett Best Practices are utilized by our ERP Solutions teams. BPI tools and templates help integrate best practices into business and analytical applications. The group also offers post-implementation support, change management, exception management, process transparency, system documentation and end-user training, all of which are designed to enhance return on investment. We also provide offshore application development and support services. These services include post-implementation support for select business application platforms. Our ERP Solutions group also includes a division responsible for the sale and maintenance support of the SAP suite of ERP applications.

See Note 1 and Note 17 in the notes to the consolidated financial statements regarding segment reporting and geographic and service group information.

CLIENTS

We focus on developing long-term client relationships with Global 2000 firms and other sophisticated buyers of business and IT consulting services. During 2011, 2010 and 2009, our ten most significant clients accounted for 22%,26% and 28% of revenue, respectively, and one client generated 3%, 4% and 6% of total revenue, respectively. We believe that we have achieved a high level of satisfaction across our client base. The responses to our client satisfaction surveys have been positive. We receive surveys from a significant number of our engagements which are utilized in a rigorous process to improve our delivery execution, sales processes, methodologies and training.

BUSINESS DEVELOPMENT AND MARKETING

Our extensive client base and relationships with Global 2000 firms remain our most significant sources of new business. Our revenue generation strategy is formulated to ensure we are addressing multiple facets of business development. The categories below define our business development resources. Our primary goal is to continue to increase awareness of our brand which we have created around Hackett’s empirical knowledge capital and BPI in the extended enterprise that we now serve. Our Hackett and BPI message have remained the central focus of our marketing and communications programs in 2011, which helped to expand both an understanding of and demand for this approach. Similarly, we have regionalized our sales and market development efforts in both North America and Europe, so we can better coordinate the sales efforts from the various offerings. Our compensation programs for our associates reflect an emphasis on optimizing our total revenue relationship with our clients while continuing to emphasize the growth of our Executive Advisory Program clients. For our ERP Solutions groups, we have continued to utilize Hackett intellectual capital that resides in our BPI tools as a way to differentiate the relationships we have with the software providers and with our clients.

BUSINESS DEVELOPMENT RESOURCES

Although virtually all of our advisors and consultants have the ability to and are expected to contribute to new revenue opportunities, our primary internal business development resources are comprised of the following:

In addition to our business development resources, we have a corporate marketing and communications organization responsible for overseeing our marketing programs, public relations and employee communications activities.

We have organized our market focus into the following categories:

MANAGEMENT SYSTEMS

Our management control systems are comprised of various accounting, billing, financial reporting, human resources, marketing and resource allocations systems, many of which are integrated with our knowledge management system, Mind~Share. We believe that Mind~Share significantly enhances our ability to serve our clients efficiently by allowing our knowledge-base to be shared by all associates worldwide on a real-time basis. Our well-developed, flexible, scalable infrastructure has allowed us to quickly integrate the new employees and business systems we have acquired.

TALENT MANAGEMENT

We fully believe that our culture fosters intellectual creativity, collaboration and innovation. We believe in building relationships with both our associates and clients. We believe the best solutions come from teams of diverse individuals addressing problems collectively and from multiple dimensions, including the business, technological and human dimensions. We believe that the most effective working environment is one where everyone is encouraged to contribute and is rewarded for that contribution. Our core values are the strongest expression of our working style and represent what we stand for. These core values are:

Our human resources staff includes seasoned professionals in North America, Europe and Asia Pacific who support our practices by, among other things, administering our benefit programs and facilitating the hiring process. Our human resources staff also includes dedicated individuals who recruit consultants with both business and technology expertise. Our recruiting team supports our hiring process by focusing on the highest demand solution areas of our business to ensure an adequate pipeline of new associates. We also have an employee referral program, which rewards existing employees who source new hires.

As of December 30, 2011, we had 914 associates, 78% of whom were billable professionals. We do not have any associates that are subject to collective bargaining arrangements, however, in France our associates enjoy the benefit of certain government mandated regulations based on industry classification. We have entered into nondisclosure and non-solicitation agreements with virtually all of our personnel. From time to time, we also engage consultants as independent contractors.

COMMUNITY INVOLVEMENT

One important way we put our values into action is through our commitment to the communities where we work. The mission of our Community Councils, which operate in each of the cities where we have offices, is to strive to make the markets, communities and clients we serve better than how we found them. We do so by building a strong sense of community, with collaboration and personal interaction from all of our associates, through both volunteer and service programs and social gatherings.

AVAILABLE INFORMATION

We make our public filings with the Securities and Exchange Commission (“SEC”), including our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and all exhibits and amendments to these reports, available free of charge at our websitehttp://www.thehackettgroup.com as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC. Any material that we file with the SEC may be read and copied at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549 or atwww.sec.gov. Information on the operation of the Public Reference Room may be obtained by calling the SEC at 1-800-SEC-0330.

Also available on our website, free of charge, are copies of our Code of Conduct and Ethics, and the charter for the Audit Committee of our Board of Directors. We intend to disclose any amendment to, or waiver from, a provision of our Code of Conduct and Ethics applicable to our senior financial officers, including our Chief Executive Officer, Chief Operating Officer, Chief Financial Officer and Corporate Controller on our website within four business days following the date of the amendment or waiver.

Our business is subject to risks. The following important factors could cause actual results to differ materially from those contained in forward-looking statements made in this Annual Report on Form 10-K or printed elsewhere by management from time to time.

Our results of operations could be negatively affected by global economic conditions.

Current global economic conditions may affect our clients’ businesses and the markets they serve. A substantial or prolonged economic downturn could adversely affect our clients’ financial condition which may reduce our clients’ demand for our services, force price reductions, cause project cancellations, or delay consulting services for which they have engaged us. In addition, if we are unable to successfully anticipate the changing economic conditions, we may be unable to effectively plan for and respond to those changes, and our business could be negatively affected.

Our quarterly operating results may vary.

Our financial results may fluctuate from quarter to quarter. In future quarters, our operating results may not meet public market analysts’ and investors’ expectations. If that happens, the price of our common stock may fall. Many factors can cause these fluctuations, including:

A high percentage of our operating expenses, particularly personnel and rent, are fixed in advance of any particular quarter. As a result, if we experience unanticipated changes in client engagements or in consultant utilization rates, we could experience large variations in quarterly operating results and losses in any particular quarter. Due to these factors, we believe our quarter-to-quarter operating results should not be used to predict future performance.

If we are unable to maintain our reputation and expand our name recognition, we may have difficulty attracting new business and retaining current clients and employees.

We believe that establishing and maintaining a good reputation and name recognition are critical for attracting and retaining clients and employees in our industry. We also believe that the importance of reputation and name recognition will continue to increase due to the number of providers of business consulting and IT services. If our reputation is damaged or if potential clients are not familiar with us or with the solutions we provide, we may be unable to attract new, or retain existing, clients and employees. Promotion and enhancement of our name will depend largely on our success in continuing to provide effective solutions. If clients do not perceive our solutions to be effective or of high quality, our brand name and reputation will suffer. In addition, if solutions we provide have defects, critical business functions of our clients may fail, and we could suffer adverse publicity as well as economic liability.

We depend heavily on a limited number of clients.

We have derived, and believe that we will continue to derive, a significant portion of our revenue from a limited number of clients for which we perform large projects. In 2011, our ten largest clients accounted for 22% of our aggregate revenue. In addition, revenue from a large client may constitute a significant portion of our total revenue in any particular quarter. Our customer contracts generally can be cancelled for convenience by the customer upon 30 days’ notice. The loss of any of our large clients for any reason, including as a result of the acquisition of that client by another entity, our failure to meet that client’s expectations, the client’s decision to reduce spending on technology-related projects, or failure to collect amounts owed to us from our client could have a material adverse effect on our business, financial condition and results of operations.

We have risks associated with potential acquisitions or investments.

Since our inception, we have expanded through acquisitions. In the future, we plan to pursue additional acquisitions as opportunities arise. We may not be able to successfully integrate businesses which we may acquire in the future without substantial expense, delays or other operational or financial problems. We may not be able to identify, acquire or profitably manage additional businesses. Also, acquisitions may involve a number of risks, including:

Client dissatisfaction or performance problems at a single acquired business could have a material adverse impact on our reputation as a whole. Further, we cannot assure you that our future acquired businesses will generate anticipated revenue or earnings.

Difficulties in integrating businesses we acquire in the future may demand time and attention from our senior management.

Integrating businesses we acquire in the future may involve unanticipated delays, costs and/or other operational and financial problems. In integrating acquired businesses, we may not achieve expected economies of scale or profitability, or realize sufficient revenue to justify our investment. If we encounter unexpected problems as we try to integrate an acquired firm into our business, our management may be required to expend time and attention to address the problems, which would divert their time and attention from other aspects of our business.

Our markets are highly competitive.

We may not be able to compete effectively with current or future competitors. The business consulting and IT services markets are highly competitive. We expect competition to further intensify as these markets continue to evolve. Some of our competitors have longer operating histories, larger client bases, longer relationships with their clients, greater brand or name recognition and significantly greater financial, technical and marketing resources than we do. As a result, our competitors may be in a stronger position to respond more quickly to new or emerging technologies and changes in client requirements and to devote greater resources than we can to the development, promotion and sale of their services. Competitors could lower their prices, potentially forcing us to lower our prices and suffer reduced operating margins. We face competition from international accounting firms; international, national and regional strategic consulting and systems implementation firms; and the IT services divisions of application software firms.

In addition, there are relatively low barriers to entry into the business consulting and IT services market. We do not own any patented technology that would stop competitors from entering this market and providing services similar to ours. As a result, the emergence of new competitors may pose a threat to our business. Existing or future competitors may develop and offer services that are superior to, or have greater market acceptance, than ours, which could significantly decrease our revenue and the value of your investment.

We may not be able to hire, train, motivate, retain and manage professional staff.

To succeed, we must hire, train, motivate, retain and manage highly skilled employees. Competition for skilled employees who can perform the services we offer is intense. We might not be able to hire enough skilled employees or train, motivate, retain and manage the employees we hire. This could hinder our ability to complete existing client engagements and bid for new ones. Hiring, training, motivating, retaining and managing employees with the skills we need is time-consuming and expensive.

We could lose money on our contracts.

As part of our strategy, from time to time, we enter into capped or fixed-price contracts, in addition to contracts based on payment for time and materials. Because of the complexity of many of our client engagements, accurately estimating the cost, scope and duration of a particular engagement can be a difficult task. We maintain an Office of Risk Management (“ORM”) that evaluates and attempts to mitigate delivery risk associated with complex projects. In connection with their review, ORM analyzes the critical estimates associated with these projects. If we fail to make these estimates accurately, we could be forced to devote additional resources to these engagements for which we will not receive additional compensation. To the extent that an expenditure of additional resources is required on an engagement, this could reduce the profitability of, or result in a loss on, the engagement. In the past, we have, on occasion, engaged in negotiations with clients regarding changes to the cost, scope or duration of specific engagements. To the extent we do not sufficiently communicate to our clients, or our clients fail to adequately appreciate the nature and extent of any of these types of changes to an engagement, our reputation may be harmed and we may suffer losses on an engagement.

Lack of detailed written contracts could impair our ability to recognize revenue for services performed, collect fees, protect our IP and protect ourselves from liability to others.

We protect ourselves by entering into detailed written contracts with our clients covering the terms and contingencies of the client engagement. In some cases, however, consistent with what we believe to be industry practice, work is performed for clients on the basis of a limited statement of work or verbal agreement before a detailed written contract can be finalized. Revenue is not recognized on a project prior to receiving a signed contract. To the extent that we fail to have detailed written contracts in place, our ability to collect fees, protect our IP and protect ourselves from liability to others may be impaired.

Our corporate governance provisions may deter a financially attractive takeover attempt.

Provisions of our charter and by-laws may discourage, delay or prevent a merger or acquisition which shareholders may consider favorable, including transactions in which shareholders would receive a premium for their shares. These provisions include the following:

In addition, our Board of Directors has adopted a shareholder rights plan. Subject to certain exceptions, in the event that a person or group in the future becomes the beneficial owner of 15% or more of our common stock (or in the case of Liberty Wanger Asset Management, L.P. (now known as Columbia Wanger Asset Management, L.P.) and its affiliates 20%), or commences, or publicly announces, an intention to commence a tender or exchange offer which would result in its ownership of 15% or more of our outstanding common stock, then the rights issued to our shareholders in connection with this plan will allow our shareholders to purchase shares of our common stock at 50% of its then current market value. In addition, if we are acquired in a merger, or 50% or more of our assets are sold in one or more related transactions, our shareholders would have the right to purchase the common stock of the acquiring company at half the then current market price of such common stock.

We may lose large clients or may not be able to secure targeted follow-on work or client retention rates.

Our client engagements are generally short-term arrangements, and most clients can reduce or cancel their contracts for our services with a 30 days’ notice and without penalty. As a result, if we lose a major client or large client engagement, our revenue will be adversely affected. We perform varying amounts of work for specific clients from year to year. A major client in one year may not use our services in another year. In addition, we may derive revenue from a major client that constitutes a large portion of total revenue for particular quarters. If we lose any major clients or any of our clients cancel programs or significantly reduce the scope of a large engagement, our business, financial condition, and results of operations could be materially and adversely affected. Also, if we fail to collect a large accounts receivable, we could be subjected to significant financial exposure. Consequently, you should not predict or anticipate our future revenue based upon the number of clients we currently have or the number and size of our existing client engagements.

We also derive a portion of our revenue from annual memberships for our Executive Advisory Programs. Our growth prospects therefore depend on our ability to achieve and sustain renewal rates on programs and to successfully launch new programs. Failure to achieve renewal rate levels or to successfully launch new programs and services could have an adverse effect on our operating results.

We may lose money in the introduction of new offerings.

In 2011, we introduced a new software as a service performance management offering called Hackett Performance Exchange. We have invested over $5.0 million in the development of this new offering. At this time, there is no assurance that we will recover our investment or develop the requisite number of paid client contracts necessary to adequately cover our product development and support costs associated with this initiative.

If we are unable to protect our IP rights or infringe on the IP rights of third parties, our business may be harmed.

We rely upon a combination of nondisclosure and other contractual arrangements and trade secret, copyright and trademark laws to protect our proprietary rights and the proprietary rights of third parties from whom we license IP. Although we enter into confidentiality agreements with our employees and limit distribution of proprietary information, there can be no assurance that the steps we have taken in this regard will be adequate to deter misappropriation of proprietary information, or that we will be able to detect unauthorized use and take appropriate steps to enforce our IP rights.

Although we believe that our services do not infringe on the IP rights of others and that we have all rights necessary to utilize the IP employed in our business, we are subject to the risk of claims alleging infringement of third-party IP rights. Any claims could require us to spend significant sums in litigation, pay damages, develop non-infringing IP or acquire licenses to the IP that is the subject of asserted infringement.

The market price of our common stock may fluctuate widely.

The market price of our common stock could fluctuate substantially due to:

In addition, the stock prices of many business and technology services companies fluctuate widely for reasons which may be unrelated to operating results. Fluctuation in the market price of our common stock may impact our ability to finance our operations and retain personnel.

We earn revenue, incur costs and maintain cash balances in multiple currencies, and currency fluctuations could adversely affect our financial results.

We have increasing international operations, where we earn revenue and incur costs in various foreign currencies, primarily the British Pound, the Euro and the Australian Dollar. Doing business in these foreign currencies exposes us to foreign currency risks in numerous areas, including revenue, purchases, payroll and investments. Certain foreign currency exposures are naturally offset within an international business unit, because revenue and costs are denominated in the same foreign currency, and certain cash balances are held in U.S. Dollar denominated accounts. However, due to the increasing size and importance of our international operations, fluctuations in foreign currency exchange rates could materially impact our results. Currently, we do not hold any derivative contracts that hedge our foreign currency risk, but we may adopt such strategies in the future.

Our cash position includes amounts denominated in foreign currencies. We manage our worldwide cash requirements considering available funds from our subsidiaries and the cost effectiveness with which these funds can be accessed. The repatriation of cash balances from certain of our subsidiaries outside the U.S. could have adverse tax consequences and be limited by foreign currency exchange controls. However, those balances are generally available without legal restrictions to fund ordinary business operations. Any fluctuations in foreign currency exchange rates could materially impact the availability and amount of these funds available for transfer.

None.

Our principal executive offices are currently located at 1001 Brickell Bay Drive, Suite 3000, Miami, Florida 33131. The lease on this premise covers 10,896 square feet and expires June 30, 2015. We also have offices in Atlanta, Chicago, New York, Philadelphia, San Francisco, Frankfurt, London, Almere, Paris, Hyderabad, Melbourne and Sydney. As of December 30, 2011, we had operating leases that extend through December 2016. We believe that we will be able to obtain suitable new or replacement space as needed. We do not own real estate and do not intend to invest in real estate or real estate-related assets.

We are involved in legal proceedings, claims, and litigation arising in the ordinary course of business not specifically discussed herein. In the opinion of management, the final disposition of such matters will not have a material adverse effect on our consolidated financial position, cash flows or results of operations.

Not applicable.

PART II

Our common stock traded on the NASDAQ Stock Market (“NASDAQ”) under the NASDAQ symbol, “ANSR” since our initial public offering on May 28, 1998 through January 31, 2008. In conjunction with our name change, we began trading on the NASDAQ under the NASDAQ symbol, “HCKT,” effective January 31, 2008. The following table sets forth for the fiscal periods indicated the high and low sales prices of the common stock, as reported on the NASDAQ.

The closing sale price for the common stock on February 8, 2012 was $4.09

As of February 17, 2012, there were 312 holders of record of our common stock and 40,884,440 shares of common stock outstanding.

Our new credit agreement, entered into on February 21, 2012, contains restrictions on our ability to declare dividends and repurchase shares.

Securities Authorized for Issuance under Equity Compensation Plans

Information appearing under the caption “Equity Compensation Plan Information” in the 2012 Proxy Statement is hereby incorporated by reference.

Performance Graph

The following graph compares our cumulative total shareholder return since December 29, 2006 with the NASDAQ Composite Index and a peer group index composed of other companies with similar business models identified below. The graph assumes that the value of the investment in our common stock and each index (including reinvestment of dividends) was $100 on December 29, 2006.

The Peer Group includes Edgewater Technology, Inc., FTI Consulting, Inc., Huron Consulting Group, Inc., Information Services Group, Inc., and The Corporate Executive Board Company. eLoyalty Corporation ceased trading in 2011 and therefore, is no longer included in the Peer Group.

Company Dividend Policy

We have not paid any cash dividends on our common stock, nor do we expect to pay any in the foreseeable future.

Purchases of Equity Securities

We have an ongoing authorization from our Board of Directors to repurchase shares of our common stock in the open market or in negotiated transactions. As of December 30, 2011, the cumulative authorization was for up to $75.0 million, with $0.6 million available for future purchases. In 2011, we repurchased $9.0 million of our common stock. This brings our cumulative purchases under the plan to $74.4 million.

All repurchases are made in the open market or through privately negotiated transactions, subject to market conditions and trading restrictions. There is no expiration date on the current authorization and we did not make any determination to suspend or cancel purchases under the program. The following table summarizes our share repurchases during the year ended December 30, 2011:

On February 22, 2012, we commenced a tender offer to purchase up to $55.0 million in value of shares of our common stock, $0.001 par value per share (the “Shares”), at a price not greater than $5.00 nor less than $4.25 per Share, to the seller in cash, less any applicable withholding taxes and without interest (the “Offer”). The Offer is scheduled to expire on March 21, 2012, unless extended by us. The Offer does not reduce the amount of the remaining authorization available for future share repurchases. (See Note 19 in the notes to the consolidated financial statements).

ITEM 6.

SELECTED FINANCIAL DATA

The following consolidated financial data sets forth selected financial information for the Company as of and for each of the years in the five-year period ended December 30, 2011, and has been derived from our audited consolidated financial statements. The selected consolidated financial data should be read together with our consolidated financial statements, related notes thereto and with “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

ITEM 7.

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Overview

Hackett, originally incorporated on April 23, 1997, is a leading strategic advisory and technology consulting firm that enables companies to achieve world-class business performance. By leveraging the comprehensive Hackett database, the world’s leading repository of enterprise business process performance metrics and best practice intellectual capital, our business and technology solutions help clients improve performance and maximize returns on technology investments.

Hackett is a strategic advisory firm and a world leader in best practice research, benchmarking, business transformation and working capital management services which empirically defines and enables world-class enterprise performance. Hackett empirically defines world-class performance in sales, general and administrative and certain supply chain activities with analysis gained through more than 7,000 benchmark studies over 18 years at over 3,000 of the world’s leading companies.

Hackett’s combined capabilities include executive advisory programs, benchmarking, business transformation working capital management and technology solutions, with corresponding offshore support.

In the following discussion, “Hackett” represents our total company. “The Hackett Group” encompasses our Benchmarking, Business Transformation and Executive Advisory groups, and includes EPM Technologies. “ERP Solutions” encompasses our ERP technology groups, which include SAP and Oracle. The acquisition of Archstone Consulting (“Archstone”) in late 2009 brought a strong EPM Transformation group to Hackett. This allowed us to combine the acquired transformation skills with our existing technology EPM group, which has been one of The Hackett Group’s growth drivers. The transformation and technology groups both adopted The Hackett Group brand in 2010, and in 2011 moved to a combined incentive plan. We recast the revenue of the EPM technology group, which was previously reflected under Hackett Technology Solutions, into The Hackett Group service line and recast all reported numbers, to best reflect this integration of brand and go-to-market focus in our reporting.

Critical Accounting Policies

In the ordinary course of business, we make a number of estimates and assumptions relating to the reporting of results of operations and financial position in conformity with generally accepted accounting principles in the United States. Actual results could differ significantly from those estimates under different assumptions and conditions. We believe the following discussion addresses our most critical accounting policies. These policies require management to exercise judgment on issues that are often difficult, subjective and complex due to the necessity of estimating the effect of matters that are inherently uncertain.

Revenue Recognition

Our revenue is principally derived from fees for services generated on a project-by-project basis in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 605,Revenue. Revenue for services rendered is recognized on a time and materials basis or on a fixed-fee or capped-fee basis.

Revenue for time and materials contracts is recognized based on the number of hours worked by our consultants at an agreed upon rate per hour and is recognized in the period in which services are performed.

Revenue related to fixed-fee or capped-fee contracts is recognized on the proportional performance method of accounting based on the ratio of labor hours incurred to estimated total labor hours. This percentage is multiplied by the contracted dollar amount of the project to determine the amount of revenue to recognize in an accounting period. The contracted dollar amount used in this calculation excludes the amount the client pays us for reimbursable expenses. There are situations where the number of hours to complete projects may exceed our original estimate, as a result of an increase in project scope, unforeseen events that arise, or the inability of the client or the delivery team to fulfill their responsibilities. On an on-going basis, our project delivery, Office of Risk Management and finance personnel review hours incurred and estimated total labor hours to complete projects. Any revisions in these estimates are reflected in the period in which they become known. If our estimates indicate that a contract loss will occur, a loss provision will be recorded in the period in which the loss first becomes probable and reasonably estimable. Contract losses are determined to be the amount by which the estimated direct costs of the contract exceed the estimated total revenue that will be generated by the contract. These costs are included in total cost of service.

Revenue from advisory services is recognized ratably over the life of the client agreements.

Revenue for contracts with multiple elements is allocated based on the fair value of the elements and is recognized in accordance with FASB Accounting Standards Update (“ASU”) 2009-13,Multiple-Deliverable Revenue Arrangements, a consensus of the FASB Emerging Issues Task Force.

Additionally, we earn revenue from the sale of software, software licenses and maintenance contracts, which is recognized in accordance with FASB ASC Topic 985,Software. Revenue for the sale of software and software licenses is recognized upon contract execution and customer receipt of software. Revenue from maintenance contracts is recognized ratably over the life of the agreements.

Unbilled revenue represents revenue for services performed that have not been invoiced. If we do not accurately estimate the scope of the work to be performed, or we do not manage our projects properly within the planned periods of time, or we do not meet our clients’ expectations under the contracts, then future consulting margins may be negatively affected or losses on existing contracts may need to be recognized. Any such reductions in margins or contract losses could be material to our results of operations.

Sales tax collected from customers and remitted to the applicable taxing authorities is accounted for on a net basis, with no impact on revenue.

Revenue before reimbursements excludes reimbursable expenses charged to clients. Reimbursements, which include travel and out-of-pocket expenses, are included in revenue, and an equivalent amount of reimbursable expenses is included in cost of service.

The agreements entered into in connection with a project, whether time and materials based or fixed-fee or capped-fee based, typically allow our clients to terminate early due to breach or for convenience with 30 days’ notice. In the event of termination, the client is contractually required to pay for all time, materials and expenses incurred by us through the effective date of the termination. In addition, from time to time we enter into agreements with our clients that limit our right to enter into business relationships with specific competitors of that client for a specific time period. These provisions typically prohibit us from performing a defined range of services which we might otherwise be willing to perform for potential clients. These provisions are generally limited to six to twelve months and usually apply only to specific employees or the specific project team.

Allowances for Doubtful Accounts

We maintain allowances for doubtful accounts for estimated losses resulting from our clients not making required payments. Periodically, we review accounts receivable to assess our estimates of collectability. Management critically reviews accounts receivable and analyzes historical bad debts, past-due accounts, client credit-worthiness and current economic trends when evaluating the adequacy of the allowance for doubtful accounts. If the financial condition of our clients were to deteriorate, resulting in their inability to make payments, additional allowances may be required.

Long-Lived Assets (excluding Goodwill and Other Intangible Assets)

We account for long-lived assets in accordance with the provisions of FASB ASC Topic 360, Property,Plant and Equipment (“ASC 360”). ASC 360 requires that long-lived assets be reviewed for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be fully recoverable. If an evaluation is required, the estimated future undiscounted cash flows associated with the asset are compared to the asset’s carrying amount to determine if there has been an impairment. The amount of an impairment is calculated as the difference between the fair value of the asset and its carrying value. Estimates of future undiscounted cash flows are based on management’s view of growth rates for the related business, anticipated future economic conditions and estimates of residual values.

Goodwill and Other Intangible Assets

All of our goodwill and intangible assets have been accounted for under the provisions of FASB ASC Topic 350,Intangibles—Goodwill and Other(“ASC 350”). ASC 350-20 requires that goodwill and intangible assets deemed to have indefinite lives not be amortized, but rather be tested for impairment on an annual basis, or more frequently if events or changes in circumstances indicate potential impairment. Finite-lived intangible assets are amortized over their useful lives and are subject to impairment evaluation under the provisions of ASC 350-30. The excess cost of the acquisition over the fair value of the net assets acquired is recorded as goodwill.

Goodwill is tested at least annually for impairment at the reporting unit level utilizing the market and income approaches. The reporting units consist of The Hackett Group (including Benchmarking, Business Transformation, Business Transformation Enterprise Performance Management (“EPM”), Strategy and Operations and Executive Advisory Programs) and Hackett Technology Solutions (including SAP, Oracle and Oracle EPM). In assessing the recoverability of goodwill and intangible assets, we make estimates based on assumptions regarding various factors to determine if impairment tests are met. These estimates contain management’s judgment, using appropriate and customary assumptions available at the time. As of December 30, 2011, neither of our reporting units were at risk of failing step one, as pursuant to ASC 350.

Other intangible assets are tested for potential impairment whenever events or changes in circumstances suggest that the carrying value of an asset may not be fully recoverable in accordance with ASC 350. If an evaluation is required, the estimated future undiscounted cash flows associated with the asset are compared to the asset’s carrying amount to determine if there has been an

impairment. The amount of an impairment is calculated as the difference between the fair value of the asset and its carrying value. Estimates of future undiscounted cash flows are based on management’s view of growth rates for the related business, anticipated future economic conditions and estimates of residual values. Other intangible assets arise from business combinations and consist of customer relationships, customer backlog and trademarks that are amortized on a straight-line or accelerated basis over periods of up to five years.

Stock Based Compensation

We record stock based compensation in accordance with FASB ASC Topic 718, Compensation-Stock Compensation(“ASC 718”), using the modified-prospective-transition method.

ASC 718 requires entities to recognize compensation expense for awards of equity instruments to employees based on the grant-date fair value of those awards (with limited exceptions). ASC 718 also requires the benefits of tax deductions in excess of recognized compensation expense to be reported as a financing cash flow.

ASC 718 provides an alternative transition method of calculating the excess tax benefits available to absorb any tax deficiencies recognized which we have elected to adopt.

Restructuring Reserves

Restructuring reserves reflect judgments and estimates of our ultimate costs of severance, closure and consolidation of facilities and settlement of contractual obligations under our operating leases, including sublease rental rates, absorption period to sublease space and other related costs. We reassess the reserve requirements to complete each individual plan under our restructuring programs at the end of each reporting period. If these estimates change in the future or actual results differ from our estimates, we may be required to record additional charges.

Income Taxes

Income taxes are accounted for in accordance with FASB ASC Topic 740, Income Taxes(“ASC 740”). Under ASC 740, deferred tax assets and liabilities are determined based on differences between the financial reporting carrying values and tax bases of assets and liabilities, and are measured by using enacted tax rates expected to apply to taxable income in the years in which those differences are expected to reverse. Deferred income taxes also reflect the impact of certain state operating loss and tax credit carryforwards. A valuation allowance is provided if we believe it is more likely than not that all or some portion of the deferred tax asset will not be realized. An increase or decrease in the valuation allowance, if any, that results from a change in circumstances, and which causes a change in our judgment about the realizability of the related deferred tax asset, is included in the current tax provision.

In accordance with FASB ASC Topic 740-10,Accounting for Uncertainty in Income Taxes, we adopted a more-likely-than-not threshold for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. This interpretation also provides guidance on de-recognition of income tax assets and liabilities, classification of current and deferred income tax assets and liabilities, accounting for interest and penalties associated with tax positions, accounting for income taxes in interim periods and income tax disclosures. We report penalties and tax-related interest expense as a component of income tax expense.

Contingent Liabilities

We have certain contingent liabilities that arise in the ordinary course of our business activities. We accrue contingent liabilities when it is probable that future expenditures will be made, and that such expenditures can be reasonably estimated. Reserves for contingent liabilities are reflected in our consolidated financial statements based on management’s assessment, along with legal counsel, of the expected outcome of the contingencies. If the final outcome of our contingencies differs adversely from that currently expected, it would result in income or a charge to earnings when determined.

The foregoing list was not intended to be a comprehensive list of all of our accounting policies. In many cases, the accounting treatment of a particular transaction is specifically dictated by accounting principles generally accepted in the United States, with no need for us to judge the application. There are also areas in which our judgment in selecting any available alternative would not produce a materially different result. Please see our consolidated financial statements and related notes thereto included elsewhere in this Annual Report on Form 10-K, which contain accounting policies and other disclosures required by accounting principles generally accepted in the United States.

Results of Operations

Our fiscal year generally consists of a 52-week period and periodically consists of a 53-week period as each fiscal year ends on the Friday closest to December 31. Fiscal years 2011, 2010 and 2009 ended on December 30, 2011, December 31, 2010 and January 1, 2010, respectively. References to a year included in this document refer to a fiscal year rather than a calendar year. The following table sets forth, for the periods indicated, our results of operations and the percentage relationship to total revenue of such results (in thousands):

Comparison of 2011 to 2010

Overview. We reported net income of $21.8 million in 2011 and $14.2 million in 2010. The increase in net income was primarily driven by improved U.S. customer demand which generated higher revenue and operating margins which benefited from improved leverage on selling, general and administrative costs.

Revenue.We are a global Company with operations primarily in the United States and Western Europe. Our revenue is denominated in multiple currencies, mostly the U.S. Dollar, British Pound, Euro and Australian Dollar, and as a result is affected by currency exchange rate fluctuations. The exchange rate fluctuations did not have a significant impact on comparisons between 2011 and 2010.

Hackett total revenue increased 12% in 2011, as compared to 2010. The following table summarizes revenue (in thousands):

The Hackett Group revenue increased 9% to $181.8 million in 2011, as compared to $167.0 million in 2010. The Hackett Group’s international revenue, which is primarily based on the country of the contracting entity, accounted for 22% of Hackett’s total revenue in 2011, as compared to 21% in 2010. These increases are primarily a result of improving demand in the U.S. and internationally, primarily from our recent entry into the Australian market.

The ERP Solutions group revenue increased 26% to $43.3 million in 2011, as compared to $34.3 million in 2010, primarily due to increased demand across both ERP service groups.

Reimbursements as a percentage of total revenue were comparable at 11% and 10% during 2011 and 2010, respectively. In 2011 and 2010, no customer accounted for more than 5% of our total revenue.

Cost of Service.Cost of service primarily consists of salaries, benefits and incentive compensation for consultants, subcontractor fees and reimbursable expenses associated with projects. Cost of service before reimbursable expenses increased 12% to $126.4 million in 2011 from $112.7 million in 2010. The increase in cost of service before reimbursable expenses was primarily due to the increased headcount to align resources with market demand.

Total cost of service before reimbursable expenses, as a percentage of revenue before reimbursements, increased slightly to 63% in 2011 from 62% in 2010. This increase was primarily due to the increased headcount discussed above. As a percentage of total revenue, The Hackett Group generated gross margins of 35% in 2011, compared to ERP Solutions which generated gross margins of 31% for the same period. As a percentage of revenue before reimbursements, The Hackett Group generated gross margins of 39% in 2011 and 2010. ERP Solutions generated gross margins as a percentage of revenue before reimbursements of 35% in 2011, as compared to 40% in 2010. ERP Solutions margins decreased from 2010, primarily due to the increased headcount.

Selling, General and Administrative. Selling, general and administrative costs increased 2% to $56.8 million in 2011 from $55.8 million in 2010. As a percentage of revenue before reimbursements, selling, general and administrative costs decreased to 28% in 2011 from 31% in 2010, primarily due to selling, general and administrative leverage on increased revenue.

Income Taxes. In 2011, we recorded an income tax benefit of $4.5 million, which represented an effective tax rate benefit of 26.0% of our income before income tax, primarily due to the partial release of the valuation allowance related to the U.S. federal net operating loss carryforward. In 2010, we recorded an income tax benefit of $26 thousand, which represented an effective tax rate benefit of 0.2% of our income before income tax.

The liability method of accounting for deferred income taxes requires a valuation allowance against deferred tax assets if, based on the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. In determining the need for valuation allowances we consider evidence such as history of losses and general economic conditions. We have $40.5 million of U.S. federal net operating loss carryforwards as of December 30, 2011, most of which will expire by 2022 if not utilized. There has been a partial release of the valuation allowance related to U.S. federal net operating loss carryforwards. As of December 30, 2011, we had $12.4 million of foreign net operating loss carryforwards, of which $4.9 million related to operations in the U.K., $3.0 million related to operations in France and $2.4 million related to operations in Germany. Most of the foreign net operating losses can be carried forward indefinitely. A valuation allowance continues to be provided, primarily for the majority of the foreign operating loss carryforwards. (See Note 10 in the notes to the consolidated financial statements.)

Comparison of 2010 to 2009

Overview. We reported net income of $14.2 million in 2010, primarily driven by improved U.S. customer demand which generated higher consultant utilization and operating margin improvements, and from the incremental operating margin contribution resulting from the Archstone acquisition completed in November 2009. We reported a net loss of $6.8 million in 2009, primarily related to acquisition-related restructuring charges and other one-time costs that were incurred as a result of the Archstone acquisition, as well as the negative impact of the global recession on client demand.

Revenue.As previously discussed, we are a global Company with operations primarily in the United States and Western Europe. Our revenue is denominated in multiple currencies, mostly the U.S. Dollar, British Pound and Euro.

Hackett total revenue increased 41% in 2010, as compared to 2009. The following table summarizes revenue (in thousands):

The Hackett Group’s revenue increased 40% to $167.0 million in 2010, as compared to $119.7 million in 2009. The increase in The Hackett Group revenue was primarily as a result of the Archstone acquisition which closed in November 2009. The Hackett Group’s international revenue accounted for 21% of total Hackett revenue in 2010, as compared to 25% in 2009. The decrease was mostly a result of Archstone revenue, which is primarily a U.S.-based business, and from continuing weakness in European client demand.

ERP Solutions group revenue increased 49% to $34.3 million in 2010, as compared to $23.0 million in 2009. The increase in ERP Solutions revenue was due to increased demand across all service groups.

Reimbursements as a percentage of total revenue were comparable at 10% during 2010 and 2009. In 2010, no customer accounted for more than 5% of our total revenue and in 2009, one customer accounted for 6% of our total revenue.

Cost of Service.Cost of service primarily consists of salaries, benefits and incentive compensation for consultants, subcontractor fees and reimbursable expenses associated with projects. Cost of service before reimbursable expenses increased 34% to $112.7 million in 2010 from $84.4 million in 2009. The increase in cost of service before reimbursable expenses was primarily due to the Archstone acquisition, as well as increased hiring activities commensurate with the increased U.S. market demand.

Total cost of service before reimbursable expenses, as a percentage of revenue before reimbursements, decreased to 62% in 2010 from 65% in 2009. This decrease was primarily due to improved consultant utilization across our service groups. As a percentage of total revenue, The Hackett Group generated gross margins of 35% in 2010, compared to ERP Solutions which generated gross margins of 36% for the same period. As a percentage of revenue before reimbursements, The Hackett Group generated gross margins of 39% in 2010, as compared to 37% in 2009. This increase was primarily driven by higher revenue. ERP Solutions generated gross margins as a percentage of revenue before reimbursements of 40% in 2010, as compared to 31% in 2009. ERP Solutions margins increased from 2009, during which the service group was adversely impacted by the global economic environment.

Selling, General and Administrative. Selling, general and administrative costs increased 21% to $55.8 million in 2010 from $46.2 million in 2009. The increase was primarily due to higher 2010 incentive compensation accruals and incremental expenses resulting from the Archstone acquisition. As a percentage of revenue before reimbursements, selling, general and administrative costs decreased to 31% in 2010 from 36% in 2009, primarily due to the effective back-office integration of the Archstone acquisition.

Restructuring Costs. There were no restructuring costs incurred in 2010. Restructuring costs of $5.4 million in 2009 were primarily comprised of $5.9 million resulting from the November acquisition and integration of Archstone related to discounted lease buy-out actions, the down-sizing of facilities, and the related exit costs of those facilities and severance costs.

Income Taxes. In 2010, we recorded an income tax benefit of $26 thousand, which represented an effective tax rate benefit of 0.2% of our income before income tax. In 2009, we recorded an income tax benefit of $212 thousand, which represented an effective tax rate benefit of 3.0% of our loss before income tax.

The liability method of accounting for deferred income taxes requires a valuation allowance against deferred tax assets if, based on the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. In determining the need for valuation allowances we consider evidence such as history of losses and general economic conditions. We had $47.8 million of U.S. federal net operating loss carryforwards as of December 31, 2010, most of which will expire by 2022 if not utilized. As of December 31, 2010, a valuation allowance had been provided primarily related to U.S. federal net operating loss carryforwards. Additionally, as of December 31, 2010, we had $14.0 million of foreign net operating loss carryforwards, of which $6.4 million related to operations in the U.K., $3.1 million related to operations in France and $2.4 million related to operations in Germany. Most of the foreign net operating losses can be carried forward indefinitely. (See Note 10 in the notes to the consolidated financial statements.)

Liquidity and Capital Resources

As of December 30, 2011 and December 31, 2010, we had $32.9 million and $25.3 million of cash and cash equivalents, respectively. As of December 30, 2011 and December 31, 2010, we had $0.9 million and $1.6 million, respectively, on deposit with financial institutions that served as collateral for letters of credit for operating leases and for amounts related to future employee compensation agreements. These deposit accounts have been classified as restricted cash on the consolidated balance sheets.

The following table summarizes our cash flow activity (in thousands):

Net cash provided by operating activities was $20.3 million in 2011, as compared to $19.5 million in 2010. During 2011, net cash provided by operating activities was primarily attributable to net income, excluding non-cash activity, offset by the payout of the 2010 incentive awards and an increase in accounts receivable and unbilled revenue as a result of increased revenue.

During 2010, net cash provided by operating activities was primarily attributable to net income, excluding non-cash items, and the timing of other vendor payments, partially offset by increased accounts receivable and unbilled revenue.

Net cash used in investing activities was $4.2 million in 2011, as compared to $3.6 million in 2010. During 2011, net cash used in investing activities was primarily attributable to $4.9 million related to capital expenditures for the development of the Hackett Performance Exchange, as well as the global rollout of new laptops which occurs every three to four years. During 2010, net cash used in investing activities was primarily attributable to $3.5 million related to capital expenditures on various internal projects, including the development of the Hackett Performance Exchange.

Net cash used in financing activities was $8.6 million in 2011, as compared to $5.6 million in 2010. During 2011, net cash used in financing activities was primarily attributable to the repurchase of approximately 2.3 million shares of our common stock at an average price of $3.84 per share for $9.0 million. During 2010, net cash used in financing activities was primarily attributable to the repurchase of approximately 1.9 million shares of our common stock at an average price of $3.26 per share for $6.1 million.

On July 30, 2002, we announced that our Board of Directors approved the repurchase of up to $5.0 million of our common stock. Since the inception of our repurchase plan, our Board of Directors has approved the repurchase of an additional aggregate $70.0 million of our common stock, thereby increasing the total program size to $75.0 million as of December 30, 2011. Under the repurchase plan, we may buy back shares of our outstanding stock from time to time either on the open market or through privately negotiated transactions, subject to market conditions and trading restrictions. As of December 30, 2011, we had repurchased approximately 21.2 million shares of our common stock at an average price of $3.52 per share. We hold repurchased shares of our common stock as treasury stock on our consolidated balance sheets.

On February 22, 2012, we commenced a tender offer to purchase up to $55.0 million in value of shares of our common stock, $0.001 par value per share (the “Shares”), at a price not greater than $5.00 nor less than $4.25 per Share, to the seller in cash, less any applicable withholding taxes and without interest (the “Offer”). We will retire shares of our common stock repurchased in the Offer. The Offer is scheduled to expire on March 21, 2012, unless extended by us. (See Note 19 in the notes to the consolidated financial statements).

On February 21, 2012, we entered into a Credit Facility with Bank of America, N.A. Under the Credit Facility, Bank of America, N.A. has agreed to lend us up to $20.0 million from time to time pursuant to a revolving line of credit (the “Revolver”) and up to $30.0 million pursuant to a term loan (the “Term Loan” and together with the Revolver, the “Credit Facility”). The proceeds of the Term Loan will be used, along with cash on hand, for the purchase of the Shares in the Offer and the payment of all fees and expenses in connection with the Offer. (See Note 19 in the notes to the consolidated financial statements).

We currently believe that available funds and cash flows generated by operations will be sufficient to fund our working capital and capital expenditure requirements for at least the next twelve months. We may decide to raise additional funds in order to fund expansion, to develop new or enhance products and services, to respond to competitive pressures or to acquire complementary businesses or technologies. There is no assurance, however, that additional financing will be available when needed or desired.

There were no material capital commitments as of December 30, 2011. The following summarizes our future lease commitments under our non-cancelable operating leases as of December 30, 2011 (in thousands):

Off-Balance Sheet Arrangements

We did not have any off-balance sheet arrangements as of December 30, 2011.

Recently Issued Accounting Standards

For discussion of recently issued accounting standards, please see “Item 8, Financial Statements and Supplementary Data” in Part II of this document.

ITEM 7A.

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

As of December 30, 2011, our exposure to market risk related primarily to changes in interest rates and foreign currency exchange rate risks.

Interest Rate Risk

We invest only with high credit quality issuers and we do not use derivative financial instruments in our investment portfolio.

Exchange Rate Sensitivity

We face exposure to adverse movements in foreign currency exchange rates, as a significant portion of our revenue, expenses, assets and liabilities are denominated in currencies other than the U.S. Dollar, primarily the British Pound, the Euro and the Australian Dollar. These exposures may change over time as business practices evolve. Currently, we do not hold any derivative contracts that hedge our foreign currency risk, but we may adopt such strategies in the future.

For a discussion of the risks we face as a result of foreign currency fluctuations, please see “Item 1A. Risk Factors” in Part I of this document.

ITEM 8.

FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

THE HACKETT GROUP, INC.

INDEX TO FINANCIAL STATEMENTS AND SCHEDULE

Report of Independent Registered Certified Public Accounting Firm

Board of Directors and Stockholders

The Hackett Group, Inc.

Miami, Florida

We have audited the accompanying consolidated balance sheets of The Hackett Group, Inc. as of December 30, 2011 and December 31, 2010 and the related consolidated statements of operations, shareholders’ equity and comprehensive income (loss), and cash flows for each of the three years in the period ended December 30, 2011. In connection with our audits of the financial statements, we have also audited the financial statement schedule listed in the accompanying index. These consolidated financial statements and schedule are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements and schedule based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements and schedule. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of The Hackett Group, Inc. at December 30, 2011 and December 31, 2010, and the results of its operations and its cash flows for each of the three years in the period ended December 30, 2011, in conformity with accounting principles generally accepted in the United States of America.

Also, in our opinion, the financial statement schedule, when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), The Hackett Group, Inc.’s internal control over financial reporting as of December 30, 2011, based on criteria established inInternal Control – Integrated Frameworkissued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) and our report dated February 24, 2012 expressed an unqualified opinion thereon.

THE HACKETT GROUP, INC.

CONSOLIDATED BALANCE SHEETS

(in thousands, except share data)

The accompanying notes are an integral part of the consolidated financial statements.

THE HACKETT GROUP, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per share data)

The accompanying notes are an integral part of the consolidated financial statements.

THE HACKETT GROUP, INC.

CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY AND COMPREHENSIVE INCOME (LOSS)

(in thousands)

The accompanying notes are an integral part of the consolidated financial statements.

THE HACKETT GROUP, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)