Acorn Limited

Aspen Bermuda Limited

Aspen Insurance UK Limited

Aspen (UK) Holdings Limited

Aspen Insurance UK Services Limited

AIUK Trustees Limited

Aspen Risk Management Limited ^*

Aspen Managing Agency Limited

Aspen Underwriting Limited

APJ Continuation Limited

Aspen U.K. Syndicate Services Limited

APJ Asset Protection Limited

Aspen U.S. Holdings, Inc.

Aspen American Insurance Company

Aspen U.S. Insurance Company ^**

Aspen Specialty Insurance Company

Aspen Specialty Insurance Management Inc.

Aspen Insurance U.S. Services Inc.

Aspen Re America, Inc.

Aspen Specialty Insurance Solutions, LLC

Aspen Re America California, LLC

Aspen Re America Risk Solutions LLC