Attached files

file filename
EX-32.1 - EX-32.1 - Willdan Group, Inc.wldn-20210101ex3216339e1.htm
EX-31.2 - EX-31.2 - Willdan Group, Inc.wldn-20210101ex31288724a.htm
EX-31.1 - EX-31.1 - Willdan Group, Inc.wldn-20210101ex311c2ba12.htm
EX-21.1 - EX-21.1 - Willdan Group, Inc.wldn-20210101ex211133fc7.htm
EX-4.2 - EX-4.2 - Willdan Group, Inc.wldn-20210101ex42e83acf1.htm
10-K - 10-K - Willdan Group, Inc.wldn-20210101x10k.htm

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

The Board of Directors
Willdan Group, Inc.:

We consent to the incorporation by reference in Registration Statements on Form S-8 (Nos. 333-232438, 333-219133, 333-219129, 333-212907, 333-184823, 333-168787, 333-152951, and 333-139127) of Willdan Group, Inc. of our report dated March 16, 2021 relating to the consolidated financial statements, and the related notes thereto, and the effectiveness of internal control over financial reporting, appearing in this Annual Report on Form 10-K.

 /s/ Crowe LLP

Sherman Oaks, CA

March 16, 2021