| SENTIN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SENTINEL LIMITED | Private company limited by shares | Dissolved |
| SENTINEL LIMITED | Private company limited by shares | Dissolved |
| SENTINEL LIMITED | Private company limited by shares | Live |
| NEW SENTINEL LIMITED | Private company limited by shares | Live |
| SENTINEL 1973 LIMITED | Private company limited by shares | Live |
| Sentinel Alpha Limited | | Live |
| ASIA SENTINEL LIMITED | Private company limited by shares | Live |
| SENTINEL ASIA LIMITED | | Live |
| SENTINEL BRIDGE LIMITED | Private company limited by shares | Live |
| SENTINEL CAPITAL LIMITED | Private company limited by shares | Dissolved |
| SENTINEL CONSULTANTS LIMITED | Private company limited by shares | Live |
| SENTINEL CONSULTING COMPANY LIMITED | Private company limited by shares | Live |
| East Asia Sentinel Limited | Private company limited by shares | Live |
| East Asia Sentinel Group Limited | Private company limited by shares | Live Commenced dormancy on 03-Feb-2016 |
| SENTINEL ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sentinel Energy and Controls Limited | Private company limited by shares | Live |
| SENTINEL ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SENTINEL COMPUTER (FAR EAST) LIMITED | Private company limited by shares | Dissolved |
| SENTINEL GROUP LIMITED | Private company limited by shares | Live |
| SENTINEL GROUP ASIA LIMITED | Private company limited by shares | Live |
| Sentinel Technology Group Limited | Private company limited by shares | Live |
| SENTINEL GROWTH LIMITED | Private company limited by shares | Live |
| Sentinel & Guardian Prudential HK Limited | | Live |
| HIGHLAND SENTINEL LIMITED | Private company limited by shares | Dissolved |
| SENTINEL SUPPLY SHIPS (HK) LIMITED | Private company limited by shares | Dissolved |
| Sentinel Technology (HK) Limited | Private company limited by shares | Live |
| SENTINEL HOLDINGS LIMITED | Private company limited by shares | Live |
| EAST ASIA SENTINEL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SENTINEL FURNITURE INDUSTRIES INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SENTINEL FURNITURE INDUSTRIES INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Live |
| SENTINEL INTERNATIONAL CO. LIMITED | Private company limited by shares | Live |
| SENTINEL FURNITURE INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| Sentinel International Investments Limited | Private company limited by shares | Dissolved |
| SENTINEL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Sentinel Investments Limited | | Live |
| SENTINEL ODYSSEY (LISBOA) GROUP LIMITED | Private company limited by shares | Live |
| SENTINEL LUBRICANTS (HK) LIMITED | Private company limited by shares | Dissolved |
| Sentinel Mobile Security Limited | Private company limited by shares | Live |
| Sentinel Pharmaceuticals Limited | Private company limited by shares | Live |
| Sentinel Resources Limited | Private company limited by shares | Live |
| SENTINEL SECURITY CONSULTING LIMITED | Private company limited by shares | Dissolved |
| Sentinel Services Asia Limited | | Live |
| East Asia Sentinel Tax Services Limited | Private company limited by shares | Live |
| East Asia Sentinel Services Limited | Private company limited by shares | Live |
| East Asia Sentinel Financial Services Limited | Private company limited by shares | Live |
| SENTINEL SOLUTIONS LIMITED | Private company limited by shares | Live |
| SENTINEL SPORTS LIMITED | Private company limited by shares | Dissolved |
| Sentinel Strategies Global Limited | Private company limited by shares | Live |
| SENTINEL SYNERGY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SENTINEL SYSTEMS LIMITED | Private company limited by shares | Live |
| Sentinel Technology Company Limited | | Live |
| East Asia Sentinel Trust Company Limited | Public company limited by shares | Live |
| WISE Sentinel HK Limited | Private company limited by shares | Live |
| Sea Sentinels Limited | Private company limited by shares | Live |
| CHRISTIAN SENTINELS FOR HONG KONG LIMITED | Company limited by guarantee | Dissolved |
| Sentinsight Limited | Private company limited by shares | Live |
| Sentinto International Limited | Private company limited by shares | Live |