| TRANQUILITY LIMITED | Private company limited by shares | Dissolved |
| TRANQUILITY SPA COMPANY LIMITED | Private company limited by shares | Live |
| BODHI TRANQUILITY ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| Tranquility Acoustronics (HK) Limited | Private company limited by shares | Live |
| First Tranquility (Hong Kong) Limited | Private company limited by shares | Live |
| Oriental Tranquility (Hong Kong) Limited | | Live |
| PLUS TRANQUILITY (HONG KONG) LIMITED | Private company limited by shares | Live |
| SWIFT TRANQUILITY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| TRANQUILITY INVESTMENT LIMITED | | Live |
| RICH TRANQUILITY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TRANQUILITY INVESTMENTS LIMITED | Private company limited by shares | Live |
| Tranquility Asset Management Co., Limited | | Live |
| MASS TRANQUILITY LIMITED | Private company limited by shares | Dissolved |
| Sea Tranquility Shipping Limited | | Live |
| Tranquility Trading Limited | Private company limited by shares | Live |
| HK TRANQUILITY INTERNATIONAL TRADING GROUP LIMITED | Private company limited by shares | Dissolved |
| TRANQUILITY INT'L TRADING LIMITED | Private company limited by shares | Live |