| THREE-T GROUP (HONG KONG) INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| three/tales Limited | Private company limited by shares | Live |
| Threetech (Hongkong) Co., Limited | Private company limited by shares | Live |
| THREETEK GROUP LIMITED | Private company limited by shares | Live |
| THREETEK TECHNOLOGY GROUP LIMITED | | Live |
| THREETEK INDUSTRIAL (HK) CO., LIMITED | Private company limited by shares | Live |
| THREETEK HONG KONG LIMITED | Private company limited by shares | Live |
| ThreeTinyDuck Limited | | Live |
| THREETOP INTERNATIONAL (HK) CO., LIMITED | Private company limited by shares | Live |
| THREETOP DESIGN ENGINEERING LIMITED | Private company limited by shares | Live |
| Threetree International Limited | | Live |