| Institutional Capital Advisory Limited | Private company limited by shares | Live |
| Creative Institutional Catering Limited | Private company limited by shares | Dissolved |
| CHINA INSTITUTIONAL INVESTORS CENTER CO., LIMITED | Private company limited by shares | Dissolved |
| Institutional Capital Connect Limited | Private company limited by shares | Live |
| INSTITUTIONAL MANAGEMENT CONSULTANTS, LIMITED | Private company limited by shares | Dissolved |
| FRANKLIN TEMPLETON INSTITUTIONAL ASIA LIMITED | Private company limited by shares | Dissolved |
| GLOBAL INSTITUTIONAL FUND SERVICE LIMITED | Private company limited by shares | Dissolved |
| INSTITUTIONAL FUNDS ADVISORS LIMITED | Private company limited by shares | Dissolved |
| Global Institutional Solutions, Limited | Private company limited by shares | Dissolved |
| GUANGDONG-HONG KONG-MARCO INSTITUTIONAL TRADING MARKET LIMITED | Private company limited by shares | Live |
| ISC - INSTITUTIONAL SERVICE CENTRE H.K. LIMITED | Private company limited by shares | Dissolved |
| International MCN Institutional Alliance Co., Limited | | Live |
| INTERNATIONAL INSTITUTIONAL INVESTORS CLUB LIMITED | Private company limited by shares | Dissolved |
| INSTITUTIONAL INVESTOR (ASIA) LIMITED | Private company limited by shares | Dissolved |
| INSTITUTIONAL LIQUIDITY LIMITED | Private company limited by shares | Live |
| CHINA MEDICAL RESEARCH ETHICS INSTITUTIONAL REVIEW BOARD LIMITED | Private company limited by shares | Live |
| INSTITUTIONAL INVESTMENT GROUP (ASIA PACIFIC) LIMITED | Private company limited by shares | Live |
| PROFESSIONAL INSTITUTIONAL CATERING LIMITED | Private company limited by shares | Live |
| INSTITUTIONAL SERVICES (FAR EAST) LIMITED | Private company limited by shares | Dissolved |
| INSTITUTIONAL SERVICES (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Institutional Shareholder Services (Hong Kong) Limited | Private company limited by shares | Live |
| INSTITUTIONAL INVESTORS SERVICES CO. LIMITED | Private company limited by shares | Dissolved |
| Millennium Institutional Services (Asia) Limited | Private company limited by shares | Live |
| HSBC INSTITUTIONAL TRUST SERVICES (ASIA) LIMITED | Public company limited by shares | Live |
| HAINING INSTITUTIONAL TEXTILE CO., LIMITED | Private company limited by shares | Live |