| Packet Mechanics Limited | Private company limited by shares | Live |
| Starwong Precision Mechanics Limited | Private company limited by shares | Live |
| Salimoto Mechanics Limited | Private company limited by shares | Live |
| SINO MECHANICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| HK SOIL MECHANICS LIMITED | Private company limited by shares | Dissolved |
| H K SOIL MECHANICS (CONSTRUCTION) LIMITED | Private company limited by shares | Dissolved |
| ATOMIC MECHANICS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK TAIMING PUMPING KAIYI THREESTARS MECHANICS GROUP COMPANY LIMITED | Private company limited by shares | Dissolved |
| HK MECHANICS AND TRADE LIMITED | Private company limited by shares | Live |
| NEO MECHANICS TRADING LIMITED | | Live |
| HK ZhongYuan Mechanics Limited | Private company limited by shares | Dissolved |
| TCM Standard Mechanism Limited | Private company limited by shares | Live |
| MechaniX Limited | Private company limited by shares | Live |
| MECHANTEX LIMITED | Private company limited by shares | Dissolved |
| C & C MECHANTRONIC LIMITED | Private company limited by shares | Dissolved |
| Mechatra Limited | Private company limited by shares | Live |
| MECHATRO TECH COMPANY LIMITED | Private company limited by shares | Live |
| A&R MECHATRONIC LIMITED | Private company limited by shares | Live |
| mechatronic PRO Limited | Private company limited by shares | Live |
| SUNRISE MECHATRONIC CO., LIMITED | Private company limited by shares | Live |
| CREDEN MECHATRONIC (HONG KONG) CO. LIMITED | Private company limited by shares | Dissolved |
| MECHATRONIC ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| FUD MECHATRONIC (SINGAPORE) PTE LIMITED | Private company limited by shares | Live |
| MECHATRONIC SOLUTIONS LIMITED | Private company limited by shares | Live |
| MECHATRONICS LIMITED | Private company limited by shares | Dissolved |
| SIU MECHATRONICS CO. LIMITED | Private company limited by shares | Live |
| N9 Mechatronics Limited | Private company limited by shares | Live |
| APG Mechatronics HK Limited | Private company limited by shares | Live |
| LQ MECHATRONICS ASIA LIMITED | Private company limited by shares | Live |
| BLUETECH MECHATRONICS CO., LIMITED | Private company limited by shares | Live |
| SANYUAN COATING MECHATRONICS LIMITED | Private company limited by shares | Live |
| SANYUAN COATING MECHATRONICS LIMITED | Private company limited by shares | Live |
| Comsen Mechatronics Limited | Private company limited by shares | Live |
| Equinox Mechatronics Limited | Private company limited by shares | Live |
| HK First Mechatronics Limited | Private company limited by shares | Dissolved |
| MAGIX MECHATRONICS COMPANY LIMITED | Private company limited by shares | Live |
| MAN POWER MECHATRONICS LIMITED | | Live |
| WAKO MECHATRONICS LIMITED | Private company limited by shares | Dissolved |
| YAWEI MECHATRONIK SHARES LIMITED | Private company limited by shares | Live |
| ACE MECHATRONIX CO., LIMITED | Private company limited by shares | Dissolved |