EX-23.1 7 wlms-20201231ex231056e74.htm EX-23.1 Registration Statement Consent (e.g., Forms S-1, S-3, S-4)

Exhibit 23.1

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

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We consent to the incorporation by reference in the Registration Statements (Nos. 333-237147, 333-239088) on Form S-8 of Williams Industrial Services Group Inc. of our report dated March 31, 2021, relating to the consolidated financial statements of Williams Industrial Services Group Inc. and subsidiaries, appearing in this Form 10-K of Williams Industrial Services Group Inc. for the year ended December 31, 2020, which report expresses an unqualified opinion.

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/s/ Moss Adams LLP

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Dallas, Texas

March 31, 2021