| Tcsbuy Co., Limited | | Live |
| TCSC Trade Limited | Private company limited by shares | Live |
| TCSHC SOCIAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| TCSJ LIMITED | Private company limited by shares | Live |
| TC-Source Electronics Co., Limited | Private company limited by shares | Live |
| 0&1 (TCSP) Limited | Private company limited by shares | Live |
| 8S (TCSP) LIMITED | Private company limited by shares | Live |
| ZX (TCSP) LIMITED | Private company limited by shares | Live |
| CORPOSEC TCSP LIMITED | Private company limited by shares | Live |
| Goodwill (TCSP) Limited | Private company limited by shares | Live |
| TCSS LIMITED | Private company limited by shares | Live |
| Tcsurvey Limited | | Live |