| Boulder Chemical Limited | Private company limited by shares | Live |
| Boulder Co., Limited | Private company limited by shares | Live |
| Boulder Enterprise Co., Limited | Private company limited by shares | Live |
| Boulder Capital Group Co., Limited | Private company limited by shares | Live |
| Boulder Corporation Limited | Private company limited by shares | Live |
| BOULDER ENGINEERING LIMITED | Private company limited by shares | Live |
| Boulder K Engineering Company Limited | | Live |
| Grand Boulder Limited | Private company limited by shares | Live |
| BOULDER (HK) LIMITED | Private company limited by shares | Live |
| BOULDER CONCEPTS (HK) LIMITED | Private company limited by shares | Dissolved |
| BOULDER (HK) TECHNOLOGY LIMITED | | Live |
| HONGKONG BOULDER GROUP CO., LIMITED | | Live |
| BOULDER INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| BOULDER INTERNATIONAL LIMITED | Private company limited by shares | Live Commenced dormancy on 16-Mar-2016 |
| Boulder International Pty Limited | Private company limited by shares | Live |
| Boulder Int'l (Hong Kong) Limited | Private company limited by shares | Live |
| Boulder Sun Investment Limited | Private company limited by shares | Live |
| BOULDER OPAL PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| BOULDER OPTICS LIMITED | Private company limited by shares | Live |
| BOULDER RESOURCES LIMITED | Private company limited by shares | Live |
| Boulderton Limited | Private company limited by shares | Live |