| Company | Country of registration | Main operations | Ownership share | Voting share |
| Flex LNGC 1 Limited | Isle of Man | Shipping | 100% | 100% |
| Flex LNGC 2 Limited | Isle of Man | Shipping | 100% | 100% |
| Flex LNG Shipping Limited | Isle of Man | Shipping | 100% | 100% |
| Flex LNG Chartering Limited | United Kingdom | Chartering services | 100% | 100% |
| Flex LNG Management AS | Norway | Management services | 100% | 100% |
| Flex LNG Fleet Limited | Bermuda | Holding company | 100% | 100% |
| Flex LNG Management Limited | Isle of Man | Management services | 100% | 100% |
| Flex LNG Bermuda Limited | Bermuda | Management services | 100% | 100% |
| Flex LNG Endeavour Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Enterprise Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Ranger Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Rainbow Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Constellation Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Courageous Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Aurora Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Amber Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Resolute Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Reliance Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Freedom Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Vigilant Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Volunteer Limited | Marshall Islands | Shipping | 100% | 100% |
| Flex LNG Shipping (Bermuda) Limited | Bermuda | Shipping | 100% | 100% |
