Exhibit 23.4
Consent of Independent Registered Public Accounting Firm
We hereby consent to the incorporation by reference in the Registration Statement on FormS-8 of Alithya Group inc. of our report for Edgewater Technology, Inc. dated March 16, 2018 relating to the consolidated financial statements of Edgewater Technology, Inc., which appears in Edgewater Technology, Inc.’s annual report on Form10-K for the year ended December 31, 2017.
/s/ BDO USA, LLP
Boston, Massachusetts
November 20, 2018