| PROLIN ENTERPRISES LIMITED | Private company limited by shares | Live |
| PRO-LINE LIMITED | Private company limited by shares | Live |
| PROLINE BUSINESS LIMITED | Private company limited by shares | Dissolved |
| PROLINE ENTERPRISES (H. K.) LIMITED | Private company limited by shares | Live |
| PRO-LINER ELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| PROLING LIMITED | Private company limited by shares | Dissolved |
| PRO-LINGUAL LIMITED | Private company limited by shares | Dissolved |
| PROLINK COMPANY LIMITED | Private company limited by shares | Dissolved |
| PROLINK HK LIMITED | Private company limited by shares | Dissolved |
| PROLINK LIMITED | Private company limited by shares | Live |
| PROLINK CHINA LIMITED | Private company limited by shares | Dissolved |
| PRO-LINK ASIA CO., LIMITED | Private company limited by shares | Live |
| PROLINK ENTERPRISES CO., LIMITED | Private company limited by shares | Dissolved |
| PROLINK CONSULTING LIMITED | Private company limited by shares | Live |
| PROLINK ELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| PROLINK ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| PROLINK GROUP LIMITED | | Live |
| PROLINK (ASIA PACIFIC) GROUP LIMITED | Private company limited by shares | Live |
| Prolink Inc. Limited | Private company limited by shares | Live |
| PROLINK INCORPORATION LIMITED | Private company limited by shares | Live |
| PROLINK INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| PROLINK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| PROLINK INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| PROLINK ELECTRONICS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Prolink Insurance (Hong Kong) Limited | Private company limited by shares | Live |
| PROLINK SOLUTIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| PROLINK TECHNOLOGY LIMITED | Private company limited by shares | Live |
| PROLINK TRADING LIMITED | Private company limited by shares | Dissolved |
| PROLINK TRADING LIMITED | Private company limited by shares | Live |
| PROLINKAGE LIMITED | Private company limited by shares | Dissolved |
| Prolinks HK Limited | Private company limited by shares | Live |
| Prolinx Group Limited | Private company limited by shares | Live |