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- 13 Oct 22 EFFECT Notice of effectiveness
- 11 Oct 22 POS AM Prospectus update (post-effective amendment)
- 21 May 20 EFFECT Notice of effectiveness
- 20 May 20 424B3 Prospectus supplement
- 8 May 20 POS AM Prospectus update (post-effective amendment)
- 4 Mar 20 424B3 Prospectus supplement
- 24 Feb 20 424B3 Prospectus supplement
- 3 Feb 20 EFFECT Notice of effectiveness
- 31 Jan 20 424B2 Prospectus for primary offering
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29 Jan 20 S-1/A IPO registration (amended)
- 26 Nov 19 S-1 IPO registration
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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the use in this Registration Statement of Infrastructure and Energy Alternatives, Inc. on Form S-1/A of our report dated February 19, 2018 on the consolidated balance sheet of Infrastructure and Energy Alternatives, Inc. as of December 31, 2017 and the consolidated statements of operations, changes in stockholders’ equity (deficit), and cash flows for each of the two years in the period ended December 31, 2017, and to the reference to us under the heading “Experts” in the prospectus.
/s/ Crowe LLP |
Indianapolis, Indiana
January 29, 2020