| HEXAMARK LIMITED | Private company limited by shares | Dissolved |
| HEXAMART PROPERTY SERVICES LIMITED | Private company limited by shares | Dissolved |
| Hexan Limited | Private company limited by shares | Live |
| HEXAPOLE COMPANY LIMITED | Private company limited by shares | Live |
| Hexa-Post Limited -The- | Private company limited by shares | Live |
| Hexapros Limited | Private company limited by shares | Live |
| HEXAR POWER HK LIMITED | Private company limited by shares | Dissolved |
| Hexar Technology Limited | Private company limited by shares | Live |
| HEXATECH LIMITED | Private company limited by shares | Dissolved |
| Hexaware Systems Limited | | Live |
| Hexaways Wood Workshop Limited | Private company limited by shares | Live |
| HEXAWORX H.K. LIMITED | Private company limited by shares | Live |