| RAYCA GROUP LIMITED | Private company limited by shares | Live |
| RAYCARE BIOENGINEERING (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| RAYCARE MEDICAL LIMITED | Private company limited by shares | Live |
| RAYCA'S CACAO CHOCOLATE LIMITED | Private company limited by shares | Live |
| RAYCEAN LIMITED | Private company limited by shares | Live |
| RAYCEIL INVESTMENTS LIMITED | Private company limited by shares | Live |
| RAYCEIL PROPERTIES LIMITED | | Live |
| Raycheer Enterprises Limited | Private company limited by shares | Live |
| RAYCHEM ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| Raychi Limited | Private company limited by shares | Live |
| RAYCHIN LIMITED | Private company limited by shares | Live |
| RAYCHON INTERNATIONAL COMMERCIAL CO., LIMITED | Private company limited by shares | Live |
| Ray-Claudia Engineering Co., Limited | Private company limited by shares | Live |
| RAY-CLAUDIA INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| RAYCO E&M LIMITED | Private company limited by shares | Live |
| RAYCOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| RAYCOM LIMITED | Private company limited by shares | Live |
| RAYCOM INVESTMENT LIMITED | Private company limited by shares | Live |
| RAYCOMM LIMITED | Private company limited by shares | Live |
| RAYCONG INDUSTRIAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| RAYCONN ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| RAYCONN LIGHTING (HK) CO., LIMITED | Private company limited by shares | Live |
| RAYCONN (HK) TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Rayconn Lighting Technology Company Limited | Private company limited by shares | Live |
| RAYCONNA COMPANY LIMITED | Private company limited by shares | Dissolved |
| RAYCONO TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Hongkong Raycool Technology Co., Limited | Private company limited by shares | Live |
| RAYCOP HONG KONG LIMITED | Private company limited by shares | Live |
| Raycore Limited | Private company limited by shares | Live |
| RAYCOTT LIMITED | Private company limited by shares | Dissolved |
| RAYCOURT COMPANY LIMITED | Private company limited by shares | Live |