| OpenE Technologies (HK) Limited | | Live |
| OPENECO LIMITED | Private company limited by shares | Live |
| OPENED SPACE HK LIMITED | Private company limited by shares | Live |
| openeight Limited | Private company limited by shares | Live |
| DREAM OPENER COMPANY LIMITED | Private company limited by shares | Live |
| Tech Opener Limited | Private company limited by shares | Live |
| OPENESHOP.COM NETWORKS LIMITED | Private company limited by shares | Dissolved |
| OPENEX TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| OPENEX TECHNOLOGY LIMITED | | Live |
| OPENEX MECHANICAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| OpenExchange APAC Limited | Private company limited by shares | Live |
| OPENEXTS LIMITED | Private company limited by shares | Live |