| FIRMAMENT LIMITED | Private company limited by shares | Dissolved |
| NEW FIRMAMENT LIMITED | Private company limited by shares | Dissolved |
| FIRMAMENT BUSINESS LIMITED | Private company limited by shares | Dissolved |
| FIRMAMENT MARINE SERVICE CO., LIMITED | Private company limited by shares | Live |
| FIRMAMENT ENTERPRISE, LIMITED | Private company limited by shares | Dissolved |
| IRON FEATHER FIRMAMENT TRADE LIMITED | Private company limited by shares | Live |
| FIRMAMENT GROUP (HONG KONG) INDUSTRIES CO., LIMITED | Private company limited by shares | Live |
| Firmament (International) Limited | Private company limited by shares | Dissolved |
| Iota in Firmament Limited | | Live |
| FIRMAMENT PROPERTIES LIMITED | Private company limited by shares | Live |
| Firmamental (International) Company Limited | Private company limited by shares | Live |