| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BERKLEY TECHNOLOGY SERVICES LLC | FC030101 | 08/03/2011 | One Red Flag |
| Berkley,W R,Ltd | 02942092 | 17/11/1994 | Dissolved |
| W. R. BERKLEY INSURANCE (EUROPE), PLC | 04681277 | 27/02/2003 | Bronze |
| W. R. BERKLEY LONDON HOLDINGS, LIMITED | 04655302 | 03/02/2003 | Silver |
| W. R. BERKLEY LONDON STAFF, LIMITED | 04655980 | 04/02/2003 | Silver |
| W. R. BERKLEY SYNDICATE HOLDINGS LIMITED | 06589640 | 17/07/2023 | Silver |
| W. R. BERKLEY SYNDICATE LIMITED | 06589648 | 17/07/2023 | Gold |
| W. R. BERKLEY SYNDICATE MANAGEMENT LIMITED | 07712472 | 16/05/2012 | Bronze |
| WRBC CORPORATE MEMBER LIMITED | 04318670 | 24/04/2009 | Silver |
| WRBC SERVICES, LIMITED | 06040116 | 18/01/2007 | Silver |
| Wrbc (Two) Ltd | 02942094 | 17/11/1994 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| TOKIO MARINE KILN GROUP LIMITED | 02949032 | 18/09/2002 | 21/05/2007 | Silver |
| W. R. BERKLEY LONDON FINANCE, | 04714465 | 27/03/2003 | 22/09/2014 | Dissolved |
| WRBC CORPORATE MEMBER LIMITED | 04318670 | 24/04/2009 | 17/07/2023 | Silver |