| Tekno HK Limited | Private company limited by shares | Live |
| Tekno Cater Limited | Private company limited by shares | Live |
| TEKNO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TeknoAVR Limited | Private company limited by shares | Live |
| Teknobuilt Limited | Private company limited by shares | Live |
| TEKNOFLOR SUPPLY LIMITED | Private company limited by shares | Live |
| TEKNOLED HK CO., LIMITED | Private company limited by shares | Live |
| TEKNOLED LIGHTING CO., LIMITED | Private company limited by shares | Live |
| TEKNOLINK LIMITED | Private company limited by shares | Dissolved |
| TEKNOMED PTE LIMITED | Private company limited by shares | Live |
| TEKNOPRESS LIMITED | Private company limited by shares | Dissolved |
| Teknos Limited | | Live |
| TEKNOSERVICES LIMITED | Private company limited by shares | Live |
| TEKNOTE HOLDING COMPANY LIMITED | Private company limited by shares | Live |
| TEKNOWARE OY LIMITED | Private company limited by shares | Dissolved |