| TRITRONI ENTERPRISES CO. LIMITED | Private company limited by shares | Live |
| TRI-TRONIC LIMITED | Private company limited by shares | Dissolved |
| TRITRONIC LIMITED | Private company limited by shares | Dissolved |
| TRITRONIC CHINA LIMITED | Private company limited by shares | Dissolved |
| TRI-TRONIC INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| TRITRONIC SYSTEMS LIMITED | Private company limited by shares | Live Ceased dormancy on 29-May-2014 |
| TriTronics Limited | Private company limited by shares | Live |
| TRITRONIX TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| TRITRONIX INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |