| COUSEN COMPANY LIMITED | Private company limited by shares | Dissolved |
| COUSIN LIMITED | Private company limited by shares | Dissolved |
| COUSIN CATERING LIMITED | Private company limited by shares | Live |
| COUSIN CORPORATION LIMITED | Private company limited by shares | Live |
| COUSIN (DAIM) LIMITED | Private company limited by shares | Live |
| KSM EDMOND COUSIN LIMITED | | Live |
| Big Cousin Industry Limited | Private company limited by shares | Live |
| COUSIN KNITTING FACTORY LIMITED | Private company limited by shares | Live |
| COUSIN RESTAURANT COMPANY LIMITED | Private company limited by shares | Live |
| HK OLD COUSIN GROUP TRADING LIMITED | | Live |
| Cousine Limited | Private company limited by shares | Live |
| COUSINI LIMITED | Private company limited by shares | Live |
| COUSINS CODE LIMITED | Private company limited by shares | Live |
| FIVE COUSINS TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| COUSTEAU OCEANS CO., (U.S.A.) INC. LIMITED | Private company limited by shares | Dissolved |
| COUSTIC-GLO (H.K.) LIMITED | Private company limited by shares | Dissolved |
| TOK GIN COUSTRUCTION CO LIMITED | Private company limited by shares | Live |
| COUSYIN E-COMMERCE CO., LIMITED | Private company limited by shares | Live |