EX-21.1 4 exhibit211_123123x10k.htm EX-21.1
EXHIBIT 21.1
BWX TECHNOLOGIES, INC.
SIGNIFICANT SUBSIDIARIES OF THE REGISTRANT
YEAR ENDED DECEMBER 31, 2023

NAME OF COMPANY | JURISDICTION OF ORGANIZATION | PERCENTAGE OF OWNERSHIP INTEREST
BWXT Advanced Technologies LLC | Delaware | 100 |
BWXT Canada Holdings Corp. | Canada | 100 |
BWXT Canada Ltd. | Canada | 100 |
BWXT Commercial Group, Inc. | Delaware | 100 |
BWXT Foreign Holdings, LLC | Canada | 100 |
BWXT Government Group, Inc. | Delaware | 100 |
BWXT Investment Company | Delaware | 100 |
BWXT Medical Ltd. | Canada | 100 |
BWXT Nuclear Energy Canada Inc. | Canada | 100 |
BWXT Nuclear Energy, Inc. | Delaware | 100 |
BWXT Nuclear Operations Group, Inc. | Delaware | 100 |
BWXT Technical Services Group, Inc. | Delaware | 100 |
NFS Holdings, Inc. | Delaware | 100 |
NOG-Erwin Holdings, Inc. | Delaware | 100 |
Nuclear Fuel Services, Inc. | Delaware | 100 |

The subsidiaries omitted from the foregoing list, considered in the aggregate as a single subsidiary, do not constitute a significant subsidiary.