| NINUS HARBOURS ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| GAIN HARBOURS LIMITED | Private company limited by shares | Live |
| Harbour's Kernel Eatery Resonance Limited | Private company limited by shares | Live |
| ALLIED HARBOURS PROFESSIONAL ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| HARBOURSIDE LIMITED | Private company limited by shares | Live |
| Harbourside 65 Limited | Private company limited by shares | Live |
| HARBOURSIDE CHINA LIMITED | Private company limited by shares | Live |
| HL MORTGAGE (THE HARBOURSIDE) LIMITED | Private company limited by shares | Live |
| Harbourside Productions Limited | | Live |
| HARBOURSIDE PROPERTIES LIMITED | Private company limited by shares | Live |