EXHIBIT 21.1

Exhibit A

Williams Industrial Services Group Inc.

Annual Report on Form 10-K

Subsidiaries of Williams Industrial Services Group Inc.

 

Consolidated Subsidiaries

Where Organized

Braden Holdings, LLC

Delaware

Global Power Professional Services Inc.

 

Delaware

GPEG, LLC

 

Delaware

Steam Enterprises, L.L.C.

 

Delaware

Williams Industrial Services Group, L.L.C.

 

Delaware

Construction & Maintenance Professionals, LLC

 

Georgia

Williams Global Services, Inc.

 

Georgia

Williams Industrial Services, LLC

 

Georgia

Williams Plant Services, LLC

 

Georgia

Williams Specialty Services, LLC

 

Georgia

Braden Manufacturing SA de CV

 

Mexico

WISG Canada Ltd.

Canada

WISG Nuclear Ltd.

Canada

WISG Electrical Ltd.

Canada