| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| I R R I S Ltd | 03018365 | 06/02/1995 | Dissolved |
| I R R I S Ltd | 03018365 | 06/03/1995 | Dissolved |
| SCOR INSURANCE (UK) LIMITED | 04580111 | 14/01/2003 | Dissolved |
| SCOR LONDON MANAGEMENT LIMITED | 04236805 | 24/01/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 34 Leadenhall Street Ltd | 02855241 | 23/08/2000 | 19/12/2002 | Dissolved |
| Atropos Management Services Ltd | 02498140 | 01/08/1992 | 23/09/1992 | Dissolved |
| BLUE STAR SYNDICATE MANAGEMENT LIMITED | 07134073 | 06/01/2011 | 26/07/2023 | One Red Flag |
| CORE TECHNOLOGY SYSTEMS (U.K.) LIMITED | 02502866 | 17/05/1992 | 11/10/1996 | One Red Flag |
| CORE TECHNOLOGY SYSTEMS (U.K.) LIMITED | 02502866 | 17/05/1992 | 31/08/2001 | One Red Flag |
| MDU SERVICES LIMITED | 03957086 | 08/08/2006 | 31/12/2007 | Gold |
| SCOR INSURANCE (UK) LIMITED | 04580111 | 24/01/2003 | 12/10/2006 | Dissolved |
| SCOR LIME STREET LIMITED | SC210982 | 06/07/2011 | 23/11/2012 | Silver |
| SCOR LONDON MANAGEMENT LIMITED | 04236805 | 24/01/2003 | 12/10/2006 | Dissolved |
| SCOR SERVICES UK LIMITED | 04580100 | 17/01/2003 | 12/10/2006 | Gold |
| SCOR UNDERWRITING LIMITED | 04296463 | 24/01/2003 | 12/10/2006 | Silver |
| SCOR UNDERWRITING LIMITED | 04296463 | 24/01/2003 | 31/07/2023 | Silver |
| THE CHANNEL SYNDICATE LLP | OC359898 | 29/11/2010 | 06/01/2011 | Dissolved |
| XL INSURANCE (UK) HOLDINGS LIMITED | 04209169 | 29/05/2001 | 28/10/2002 | Gold |
| XL INSURANCE COMPANY PLC | 01884214 | 25/05/1991 | 02/06/1998 | Dissolved |
| XL INSURANCE COMPANY PLC | 01884214 | 01/01/1998 | 02/06/1998 | Dissolved |