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Exhibit 21.1

BABCOCK & WILCOX ENTERPRISES, INC.

SUBSIDIARIES

YEAR ENDED DECEMBER 31, 2025

Name of Company			Jurisdiction of Organization			Percentage of Ownership Interest
1867BW, LLC			Delaware			100
Americon Equipment Services, Inc.			Delaware			100
Americon, LLC			Delaware			100
B&W de Panama, Inc.			Panama			100
Babcock & Wilcox A/S			Denmark			100
Babcock and Wilcox ME Holdings Limited			United Arab Emirates			100
Babcock & Wilcox Acorn Holdings, LLC			Delaware			100
Babcock & Wilcox Australia Pty. Ltd.			Australia			100
Babcock & Wilcox Canada Corp.			Nova Scotia			100
Babcock & Wilcox Chanute, LLC			Oklahoma			100
Babcock & Wilcox Construction Co., LLC			Delaware			100
Babcock & Wilcox Developments, LLC			Delaware			100
Babcock & Wilcox de Monterrey, S.A. de C.V.			Mexico			100
Babcock & Wilcox Egypt, LLC			Egypt			100
Babcock & Wilcox Equity Investments, LLC			Delaware			100
Babcock & Wilcox FPS Inc.			Canada			100
Babcock & Wilcox Global Sales & Services - Chile SpA			Chile			100
Babcock & Wilcox Global Vendas and Servicos Brasil Ltda.			Brazil			100
Babcock & Wilcox Global Sales and Services Pte. Ltd.			Singapore			100
Babcock & Wilcox Global Sales and Services Pte. Ltd. - Philippines Branch			Philippines			100
Babcock & Wilcox Holdings, LLC			Delaware			100
Babcock & Wilcox India Private Limited			India			100
Babcock & Wilcox International Investments Co., Inc.			Panama			100
Babcock & Wilcox International Sales and Service Corporation			Delaware			100
Babcock & Wilcox International, Inc.			Delaware			100
Babcock & Wilcox IP Holdings, LLC			Delaware			100
Babcock & Wilcox New Energy Holdings, LLC			Delaware			100
Babcock & Wilcox Precipitators, LLC			Delaware			100
Babcock and Wilcox S. Africa (Pty) Ltd.			South Africa			100
Babcock & Wilcox Singapore Pte. Ltd.			Singapore			100
Babcock & Wilcox Solar Energy, Inc.			Illinois			100
Babcock & Wilcox Solar Holdings, LLC			Delaware			100
Babcock & Wilcox SPIG, Inc.			New Jersey			100
Babcock & Wilcox Technology, LLC			Delaware			100
Babcock & Wilcox Vietnam Company Limited			Vietnam			100
Babcock & Wilcox Volund Limited			United Kingdom			100
Babcock Wilcox Arabia Limited Company			Saudi Arabia			100
Bayou B2H, LLC			Delaware			100
Dampkraft Insurance Company			South Carolina			100
Diamond Operating Co., Inc.			Delaware			100

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Name of Company			Jurisdiction of Organization			Percentage of Ownership Interest
Diamond Power China Holdings, Inc.			Delaware			100
Diamond Power Equity Investments, Inc.			Delaware			100
Ember Disposition, LLC			Delaware			100
Focaliti, LLC			Delaware			100
Great Arrow Builders, LLC			Delaware			15
Massillon NG2H, LLC			Delaware			100
Mountaineer C2H, LLC			Delaware			100
P. T. Babcock & Wilcox Asia			Indonesia			100
Servicios de Fabricacion de Valle Soleado, S.A. de C.V.			Mexico			100
Servicios Profesionales de Valle Soleado, S.A. de C.V.			Mexico			100
The Babcock & Wilcox Company			Delaware			100
The Babcock & Wilcox Company - Dominican Republic Branch			Dominican Republic			100
Wyoming C2H, LLC			Delaware			100