| SIT Member | 01219999999 | SIT Member Address Line 1, SIT Member Town, B1 1BA |
| SIT Member 4 | | |
| Softwire Technology | | |
| Sompo Japan Nipponkoa Insurance Company of Europe | 0207 382 7942 | F.A.O. Tim Whitfield, Claims Manager, 6 Devonshire Square, London, EC2M 4YE, United Kingdom |
| Soteria Insurance Limited | 0845 301 6035 | Liability Claims, PO Box 3456, Norwich, NR1 3GJ, United Kingdom |
| Sportscover Underwriting Ltd | | |
| St Julians Insurance Company Limited | 08448 710 471 | Mobilers Insurance Services, John Garth House, Engine Lane, Stourbridge, West Midlands, DY9 7DF, United Kingdom |
| Staging Insurance | | |
| Starr International (Europe) Limited | | |
| Swiss Re | | |
