EX-21.1 4 wldn-20241227xex21d1.htm EX-21.1

Exhibit 21.1

WILLDAN GROUP, INC.

LIST OF SUBSIDIARIES

AS OF DECEMBER 27, 2024

​ ​ ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Name of Entity | ​ | Jurisdiction of Organization | ​
1. | ​ | Willdan Electrical of NY, Inc. | ​ | New York | ​
2. | ​ | Willdan Engineering | ​ | California | ​
3. | ​ | Willdan Energy Solutions | ​ | California | ​
4. | ​ | Willdan Financial Services | ​ | California | ​
5. | ​ | Willdan Lighting & Electric, Inc. | ​ | Delaware | ​
6. | ​ | Electrotec of NY Electrical Inc. | ​ | New York | ​
7. | ​ | Public Agency Resources | ​ | California | ​
8. | ​ | Integral Analytics, Inc. | ​ | Ohio | ​
9. | ​ | Willdan Energy Co. | ​ | Delaware | ​
10. | ​ | Energy and Environmental Economics, Inc. | ​ | California | ​

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