| Company Name | Type | Status |
|---|---|---|
| TT&A COMPANY LIMITED | Private company limited by shares | Live |
| T.T.A. Concepts Limited | Private company limited by shares | Live |
| TTAC Limited | Private company limited by shares | Dissolved |
| TTAF ELECTRONIC MANUFACTORY COMPANY LIMITED | Private company limited by shares | Live |
| TTAF (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| TTAGS LIMITED | Private company limited by shares | Live |
| TTASoft Consulting Limited | Private company limited by shares | Live |