| TECHCOMP LIMITED | Private company limited by shares | Live |
| TECHCOMP MACHINERY COMPANY LIMITED | Private company limited by shares | Dissolved |
| TECHCOMP SCIENTIFIC LIMITED | Private company limited by shares | Live |
| TECHCON LIMITED | Private company limited by shares | Dissolved |
| TECHCON ART CENTRE LIMITED | Private company limited by shares | Dissolved |
| TECHCON ELECTRICAL LIMITED | Private company limited by shares | Live |
| TECHCON GROUP LIMITED | Private company limited by shares | Live |
| TECHCON INVESTMENT LIMITED | Private company limited by shares | Live |
| TECHCON METAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| TechConcepts Limited | | Live |
| TECHCONE TECHNOLOGIES (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| TECHCONIC SYSTEM LIMITED | Private company limited by shares | Dissolved |
| TechConnect Limited | | Live |
| TECHCONNECT.C LIMITED | Private company limited by shares | Live |
| TECHCONSULT BM LIMITED | Private company limited by shares | Live |
| Techcoo Limited | | Live |
| Techcopain IT Solutions Limited | | Live |
| TECHCORP LIMITED | Private company limited by shares | Live |
| TECHCORP INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| TechCosmos Limited | Private company limited by shares | Live |
| TECHCOTECH LIMITED | Private company limited by shares | Live |