| | | | | |
| NAME OF SUBSIDIARY | JURISDICTION OF INCORPORATION |
| Acorn Limited | Bermuda |
| APJ Asset Protection Jersey Limited | Jersey |
| Aspen (UK) Holdings Limited | United Kingdom |
| Aspen (US) Holdings Limited | United Kingdom |
| Aspen American Insurance Company | Texas |
| Aspen Australia Service Company Pty Ltd | Australia |
| Aspen Bermuda Limited | Bermuda |
| Aspen Capital Management, Ltd | Bermuda |
| Aspen Cat Fund Limited | Bermuda |
| Aspen European Holdings Limited | United Kingdom |
| Aspen Insurance U.S. Services Inc. | Delaware |
| Aspen Insurance UK Limited | United Kingdom |
| Aspen Insurance UK Services Limited | United Kingdom |
| Aspen Managing Agency Limited | United Kingdom |
| Aspen Re America, Inc. | Delaware |
| Aspen Risk Management Limited | United Kingdom |
| Aspen Singapore Pte. Ltd. | Singapore |
| Aspen Specialty Insurance Company | North Dakota |
| Aspen Specialty Insurance Management, Inc. | Massachusetts |
| Aspen Specialty Insurance Solutions LLC | California |
| Aspen U.S. Holdings, Inc. | Delaware |
| Aspen UK Syndicate Services Limited | United Kingdom |
| Aspen Underwriting Limited | United Kingdom |
| Blue Waters Insurers, Corp. | Puerto Rico |
| Peregrine Reinsurance Ltd | Bermuda |
| Silverton Re Ltd. | Bermuda |