| Gringolet Company Limited | 44 20 7382 2063 | 20 Old Broad Street, London, EC2N 1DP |
| Hadron UK Insurance Company Limited | 02922771171 | One Fleet Place, London, EC4M 7WS |
| Hamilton Insurance Designated Activity Company | 02073374433 | 3 Minster Court, Mincing Lane, London, EC3D 7DD |
| Hardy (Underwriting Agencies) Limited | 020 7626 0382 | 20 Fenchurch Street, London, EC3M 3BY |
| Hartford Underwriting Agency Limited | 020 7220 6000 | 6 Bevis Marks, Floors 7-8, London, EC3A 7BA |
| HCC International Insurance Company plc | 01656 868033 | One Aldgate, London, EC3N 1RE |
| HCC Underwriting Agency Limited | 01656 868033 | One Aldgate, London, EC3N 1RE |
| HDI Global SE | 0207 696 8099 | 10 Fenchurch St, London, EC3M 3BE |
| HDI Global Specialty SE UK Branch | +44 207 015 4077 | 20 Gracechurch Street, London, EC3V 0BG, United Kingdom |
| Heddington Insurance (UK) Ltd | 020 7719 4626 | 1 Westferry Circus, Canary Wharf, London, E14 4HA, United Kingdom |
