| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| HARTFORD UNDERWRITING AGENCY LIMITED | 01380715 | 24/03/2015 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AIG EUROPE (SERVICES) LIMITED | 00521852 | 09/10/1992 | 25/08/1996 | Silver |
| AIG EUROPE LIMITED | 01486260 | 09/10/1991 | 25/08/1996 | Dissolved |
| AIG INDEMNITY LIMITED | 02908065 | 24/03/1994 | 25/08/1996 | Dissolved |
| AIG UZBEKINVEST LIMITED | 02997371 | 27/01/1995 | 25/08/1996 | Gold |
| ANTARES MANAGING AGENCY LIMITED | 06646629 | 03/09/2013 | 25/06/2014 | Gold |
| ASCOT UNDERWRITING HOLDINGS LIMITED | 04211094 | 19/10/2001 | 21/03/2005 | Silver |
| ASCOT UNDERWRITING LIMITED | 04098461 | 07/11/2001 | 21/03/2005 | Gold |
| American Home Assurance Co | FC004277 | 02/07/2001 | 15/11/2004 | Dissolved |
| Auto Elite Ltd | 02957195 | 05/08/1994 | 25/08/1996 | Dissolved |
| BRITISH-AMERICAN CHAMBER OF COMMERCE | 00172178 | 23/09/1999 | 11/11/2003 | Not Trading |
| Carnturn Ltd | 02122380 | 12/12/2000 | 20/05/2002 | Dissolved |
| Clerkloyal Ltd | 03045284 | 17/05/1995 | 25/08/1996 | Dissolved |
| Computer Services Europe Limited | 00962984 | 01/04/1993 | 25/08/1996 | Dissolved |
| Consulting Realisations Ltd | 02685804 | 23/04/1993 | 25/08/1996 | Dissolved |
| Data for Marketing Ltd | 03686186 | 12/12/2000 | 20/05/2002 | Dissolved |
| Drelpine Ltd | 02116185 | 12/12/2000 | 20/05/2002 | Dissolved |
| Filetrain Ltd | 02124408 | 12/12/2000 | 20/05/2002 | Dissolved |
| HOSPITAL PLAN INSURANCE SERVICES | 02100356 | 12/12/2000 | 20/05/2002 | Dissolved |
| LANDMARK SAVINGS LIMITED | 02200839 | 01/04/1993 | 25/08/1996 | Dissolved |
| LEOFOLD LIMITED | 02133795 | 12/12/2000 | 20/05/2002 | Dissolved |
| Landmark Express Ltd | 02950357 | 14/07/1994 | 25/08/1996 | Dissolved |
| Landmark Programmes Ltd | 02962597 | 23/08/1994 | 25/08/1996 | Dissolved |
| Landmark Protect Ltd | 02962628 | 23/08/1994 | 25/08/1996 | Dissolved |
| Landmark Select Ltd. | 02950415 | 14/07/1994 | 25/08/1996 | Dissolved |
| MARCO INTERNATIONAL INSURANCE COMPANY LIMITED | 09232287 | 14/06/2016 | 07/06/2023 | Bronze |
| Maidreel Ltd | 02133254 | 12/12/2000 | 20/05/2002 | Dissolved |
| OAKMET LIMITED | 02132536 | 12/12/2000 | 20/05/2002 | Dissolved |
| PRIMAPLAN LIMITED | 04119305 | 14/02/2001 | 20/05/2002 | Dissolved |
| PRIMEPLAN LIMITED | 04332703 | 25/01/2002 | 20/05/2002 | Dissolved |
| PROVECTUS GROUP LTD | 02591589 | 23/09/1994 | 25/08/1996 | One Red Flag |
| Remediation Realisations Ltd | 03013302 | 08/03/1995 | 25/08/1996 | Dissolved |
| SAMSUNG INSURANCE COMPANY OF EUROPE LTD | 02604017 | 04/02/1992 | 25/08/1996 | Dissolved |
| STARR UNDERWRITING AGENTS LIMITED | 02973661 | 29/11/1994 | 25/08/1996 | Silver |
| TECHMARK SERVICES LIMITED | 02816442 | 22/07/1993 | 25/08/1996 | Dissolved |
| TRANSATLANTIC REINSURANCE COMPANY | FC010151 | 19/05/2005 | 01/07/2008 | Bronze |
| UNDERWRITERS ADJUSTMENT COMPANY (UNITED KINGDOM) LIMITED | 00954575 | 01/04/1993 | 25/08/1996 | Dissolved |