| OpenAd Limited | | Live |
| OpenAds Limited | | Live |
| OpenAds Media Limited | | Live |
| OpenAI GP Limited | | Live |
| OpenAi Sora Limited | | Live |
| Openaicity Limited | | Live |
| OpenAids Limited | | Live |
| Openaimap Limited | | Live |
| OPENAIR LIMITED | Private company limited by shares | Dissolved |
| OpenAir Solutions Company Limited | Private company limited by shares | Live |
| OpenAirlines H.K. Limited | Private company limited by shares | Live |
| OPENANY TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| OPENASIA LIMITED | Private company limited by shares | Live |
| OMG OPENASIA LIMITED | Private company limited by shares | Live |
| OPENASIA CONSULTING LIMITED | Private company limited by shares | Live |
| OPENASIA GROUP LIMITED | Private company limited by shares | Live |
| OPENASICS LIMITED | Private company limited by shares | Dissolved |
| OPEN-AVL LIMITED | Private company limited by shares | Live |