| CASPIAN SEA COMPANY LIMITED | Private company limited by shares | Dissolved |
| CASPIAN LIMITED | Private company limited by shares | Dissolved |
| Caspian Capital Limited | Private company limited by shares | Live |
| CASPIAN SEA SUPPLY CHAIN LIMITED | Private company limited by shares | Dissolved |
| HK CASPIAN CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| China State Construction Engineering Corporation (Caspian Region) Limited | Private company limited by shares | Live |
| CASPIAN PROPERTIES AND INVESTMENTS LIMITED | Private company limited by shares | Live |