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| 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 Chartering Limited | | United Kingdom | | Chartering services | | 100% | | 100% |
| Flex LNG Management AS | | Norway | | Management services | | 100% | | 100% |
| Flex LNG Bermuda Management Limited | | Bermuda | | Management services | | 100% | | 100% |
| Flex LNG Management Limited | | Isle of Man | | Management services | | 100% | | 100% |
| Flex LNG Fleet Limited | | Bermuda | | Holding company | | 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 Freedom Limited | | Marshall Islands | | Shipping | | 100% | | 100% |
| Flex Vigilant Limited | | Marshall Islands | | Shipping | | 100% | | 100% |
| Flex Volunteer Limited | | Marshall Islands | | Shipping | | 100% | | 100% |
| Flex LNG Shipping (Bermuda) Limited | | Bermuda | | Shipping | | 100% | | 100% |