Document
Exhibit 21
SELECTIVE INSURANCE GROUP, INC.
SUBSIDIARIES AS OF DECEMBER 31, 2025
| Name | Jurisdiction in which organized | Parent | Percentage voting securities owned | |||||||||||||||||
| Mesa Underwriters Specialty Insurance Company | New Jersey | Selective Insurance Group, Inc. | 100 | % | ||||||||||||||||
| Selective Auto Insurance Company of New Jersey | New Jersey | Selective Insurance Group, Inc. | 100 | % | ||||||||||||||||
| Selective Casualty Insurance Company | New Jersey | Selective Insurance Group, Inc. | 100 | % | ||||||||||||||||
| Selective Fire and Casualty Insurance Company | New Jersey | Selective Insurance Group, Inc. | 100 | % | ||||||||||||||||
| Selective Insurance Company of America | New Jersey | Selective Insurance Group, Inc. | 100 | % | ||||||||||||||||
| Selective Insurance Company of New England | New Jersey | Selective Insurance Group, Inc. | 100 | % | ||||||||||||||||
| Selective Insurance Company of New York | New York | Selective Insurance Group, Inc. | 100 | % | ||||||||||||||||
| Selective Insurance Company of South Carolina | Indiana | Selective Insurance Group, Inc. | 100 | % | ||||||||||||||||
| Selective Insurance Company of the Southeast | Indiana | Selective Insurance Group, Inc. | 100 | % | ||||||||||||||||
| Selective Way Insurance Company | New Jersey | Selective Insurance Group, Inc. | 100 | % | ||||||||||||||||
| SRM Insurance Brokerage, LLC. | New Jersey | Selective Insurance Group, Inc. | 100 | % | ||||||||||||||||
| Wantage Avenue Holding Company, Inc. | New Jersey | Selective Insurance Group, Inc. | 100 | % | ||||||||||||||||
| Wantage Avenue ABC, LLC. | New Jersey | Wantage Avenue Holding Company, Inc. | 100 | % | ||||||||||||||||