| AtPac Company Limited | Private company limited by shares | Dissolved |
| ATPC Limited | Private company limited by shares | Live |
| ATPC Global Limited | Private company limited by shares | Live |
| ATPHIZYOM LIMITED | Private company limited by shares | Live |
| ATPHR LIMITED | Private company limited by shares | Live |
| ATPI LIMITED | Private company limited by shares | Live |
| ATPI Travel (Hong Kong) Limited | Private company limited by shares | Live |
| ATPK (HONGKONG) AIR COMPRESSOR EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| atPM Limited | Private company limited by shares | Dissolved |
| ATPORT LIMITED | Private company limited by shares | Dissolved |
| ATPR INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Atpregnancy Limited | Private company limited by shares | Live |
| ATPS Limited | Private company limited by shares | Dissolved |