| UKI (Formerly NIG) | 0207 656 6000 | Crown House, 145 City Road, London, EC1V 1LP, United Kingdom |
| Valiant Insurance Company Limited | | |
| W R Berkley Insurance Europe Group | +4420 7280 9045 | 2nd Floor, 40 Lime Street, London, EC3M 7AW, United Kingdom |
| W R Berkley Syndicate Management Ltd | | |
| Wakam UK Ltd | | |
| Watford Insurance Company Europe Limited | | |
| West Bay Insurance PLC | | |
| West Bay Insurance PLC | 08448 710 471 | John Garth House, Engine Lane, Stourbridge, West Midlands, DY9 7DF, United Kingdom |
| Western Captive Insurance Company Limited | | |
| XL Insurance Company Ltd | 0207 933 7431 | FAO John Hewat, XL House, 70 Gracechurch Street, London, EC3V 0XL, United Kingdom |
