| LV (Liverpool Victoria) | 0845 640 5170 | 69 Park Lane , Croydon, Surrey , CR9 1BG, United Kingdom |
| Marco Gamma Limited (formerly Royal London GI) | +44 203 337 6476 | 24 Monument Street, 4th Floor, London, EC3R 8AJ, United Kingdom |
| Marco International Insurance Company Limited | 020 7220 6906 | 24 Monument Street, 4th Floor, London, EC3R 8AJ |
| Markel International Insurance Company Limited | 020 7953 6000 | 20 Fenchurch Street, London, EC3M 3BY |
| Markel Syndicate Management Limited | 00 4420 7953 6000 | 20 Fenchurch Street, London, EC3M 3BY |
| Markerstudy Insurance Company Ltd | 01227 284700 | Markerstudy Insurance Services Ltd, Prospect House, Thanet Way, Whitstable, West Midlands, CT5 3FD, United Kingdom |
| Max at Lloyd's Limited | | |
| Medical & Commercial International Limited | 07874 866284 | Syndicate 1902 Medical & Commercial International Limited, Jane O'Flaherty, Head of Claims, 1st Floor, 145 Leadenhall Street, London, EC3V 4QT, United Kingdom |
| Methodist Insurance PLC (MIC) | 0161 817 6525 | Benefact House, 2000 Pioneer Avenue, Gloucester Business Park, Brockworth, Gloucester, GL3 4AW, United Kingdom |
| Mitsui Sumitomo Ins Co (Europe) Ltd | 0207 977 8321 | The Leadenhall Building, 122 Leadenhall Street, London, EC3V 4AG, United Kingdom |