| PS&OB Limited | Private company limited by shares | Live |
| P-Solution Company Limited | Private company limited by shares | Live |
| HongKong PSON Development Limited | | Live |
| PSONS LIMITED | Private company limited by shares | Live |
| PS_oohlala Limited | Private company limited by shares | Live |
| ANCESTRAL (HONGKONG) CHINESE MEDICINE PSORIASIS INSTITUTE CO., LIMITED | Private company limited by shares | Dissolved |
| HONG KONG PSORIASIS CHARITY GROUPS LIMITED | | Live |
| HONG KONG PSORIASIS PATIENTS ASSOCIATION LIMITED | Company limited by guarantee | Live |
| PSOV Consultant Limited | Private company limited by shares | Live |