| TETRIAS CO., LIMITED | Private company limited by shares | Live |
| TETRION CAPITAL LIMITED | Private company limited by shares | Live |
| TETRIRA COMPANY LIMITED | Private company limited by shares | Dissolved |
| Tetris (HK) Company Limited | Private company limited by shares | Live |
| TETRIS HOLDING LIMITED | Private company limited by shares | Live |
| Tetris Investment Holding Limited | Private company limited by shares | Live |
| TETRIS MEDIA LIMITED | Private company limited by shares | Live |
| TETRIS DE MEDIA LIMITED | Private company limited by shares | Live |
| TETRIS TRADING CO., LIMITED | Private company limited by shares | Live |
| TETRIS WORKSHOP LIMITED | Private company limited by shares | Dissolved |
| Tetrix Limited | | Live |
| Tetro Limited | Private company limited by shares | Live |
| TETRON LIMITED | Private company limited by shares | Dissolved |
| TETRONICS IMPEX LIMITED | Private company limited by shares | Live |
| TETS Hong Kong Limited | Private company limited by shares | Dissolved |
| Tetsu Global Limited | Private company limited by shares | Live |
| MAISON TETSU LIMITED | Private company limited by shares | Live |
| UNCLE TETSU OCEANIA LIMITED | Private company limited by shares | Live |
| TETSUYA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TETSWORTH LIMITED | Private company limited by shares | Dissolved |
| Tetta Limited | Private company limited by shares | Live |
| TETTERO HK LIMITED | Private company limited by shares | Live |
| TETUMA HOLDINGS LIMITED | Private company limited by shares | Live |