| ACEN LIMITED | Private company limited by shares | Dissolved |
| A-CEN LIMITED | | Live |
| Acenda Limited | Private company limited by shares | Live |
| ACENDEN LIMITED | Private company limited by shares | Live |
| ACENET TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ACENEW TECHNOLOGY LIMITED | | Live |
| ACEN-HITECH LIMITED | Private company limited by shares | Live |
| Acenova Enterprise Limited | Private company limited by shares | Live |
| ACENT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Acenta Limited | Private company limited by shares | Live |
| Acentic Asia Limited | Private company limited by shares | Live |
| ACENTRA HK LIMITED | Private company limited by shares | Dissolved |