| Tecto Limited | Private company limited by shares | Live |
| Tectom Limited | Private company limited by shares | Live |
| TECTOMIKA LIMITED | Private company limited by shares | Dissolved |
| TECTOMIKA LIMITED | Private company limited by shares | Live |
| Tecton Limited | Private company limited by shares | Live |
| TECTON ASIA LIMITED | Private company limited by shares | Dissolved |
| TECTONA LIMITED | Private company limited by shares | Live |
| TECTONA ENTERPRISES LIMITED | Private company limited by shares | Live |
| TECTONA GROUP LIMITED | Private company limited by shares | Live Ceased dormancy on 06-May-2016 |
| TECTONA TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| A.T.I. TECTONIKS LIMITED | Private company limited by shares | Live |
| TECTOP LIMITED | Private company limited by shares | Dissolved |
| TECTOR INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TECTOYZ LIMITED | Private company limited by shares | Live |