| JAMSON LIMITED | Private company limited by shares | Dissolved |
| JAMSON LIMITED | Private company limited by shares | Dissolved |
| K. JAMSON LIMITED | Private company limited by shares | Live |
| JAMSON LEUNG COMPANY LIMITED | Private company limited by shares | Live |
| JAMSON TRADING LIMITED | Private company limited by shares | Dissolved |
| JAMSONS (HK) LIMITED | Private company limited by shares | Dissolved |
| JAMSONS SHIPPING COMPANY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| JAMSONS MANUFACTURING LIMITED | Private company limited by shares | Dissolved |