| Professional Equine Institute Limited | | Live |
| INSTITUTE OF PROFESSIONAL AND EXECUTIVE MANAGEMENT LIMITED | Private company limited by shares | Live |
| Institute of Financial and Professional Consultancy Limited | | Live |
| HONG KONG INSTITUTE OF PROFESSIONAL ACCOUNTANCY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Blockchain Professional Institute Limited | Company limited by guarantee | Live |
| HONG KONG INSTITUTE FOR IT PROFESSIONAL CERTIFICATION LIMITED -THE- | Company limited by guarantee | Live |
| HONG KONG INSTITUTE OF PROFESSIONAL COMMUNICATION LIMITED | Company limited by guarantee | Live |
| HONG KONG INSTITUTE OF PROFESSIONAL EDUCATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG INSTITUTE FOR PRC PROFESSIONAL EDUCATION LIMITED | Private company limited by shares | Dissolved |
| HONG KONG PROFESSIONAL EDUCATION INSTITUTE LIMITED | Private company limited by shares | Live |
| HONG KONG INSTITUTE OF PROFESSIONAL ENGINEERS LIMITED -THE- | Company limited by guarantee | Dissolved |
| HONG KONG INSTITUTE OF PROFESSIONAL PHOTOGRAPHERS LIMITED | Company limited by guarantee | Live |
| HONG KONG INSTITUTE OF PROFESSIONAL STUDIES LIMITED | Private company limited by shares | Live |
| PROFESSIONAL IMAGE & INTERNATIONAL ETIQUETTE INSTITUTE LIMITED | Private company limited by shares | Live |
| LINUX PROFESSIONAL INSTITUTE LIMITED | Company limited by guarantee | Dissolved |
| INSTITUTE OF PROFESSIONAL MEDICAL BEAUTY LIMITED | Private company limited by shares | Live |
| INSTITUTE OF PROFESSIONAL PROPERTY MANAGERS LIMITED | Company limited by guarantee | Dissolved |
| INSTITUTE OF PROFESSIONAL PUBLIC RELATIONS, HONGKONG LIMITED -THE- | Company limited by guarantee | Dissolved |
| SHARE PROFESSIONAL BEAUTY INSTITUTE LIMITED | Private company limited by shares | Live |
| INSTITUTE OF PROFESSIONAL AND HIGHER STUDIES LIMITED | Private company limited by shares | Dissolved |
| INSTITUTE OF PROFESSIONAL TRAINERS LIMITED | Company limited by guarantee | Dissolved |
| INSTITUTE OF PROFESSIONAL TRAINERS AND COACHES LIMITED | Company limited by guarantee | Live |
| CTU PROFESSIONAL TRAINING INSTITUTE LIMITED | Private company limited by shares | Live |
| Professional Training Institute Limited | Private company limited by shares | Dissolved |
| ASIA PROFESSIONAL TRAINING INSTITUTE LIMITED | Private company limited by shares | Live |
| HK INSTITUTE OF PROFESSIONAL EDUCATION & TRAINING LIMITED | Private company limited by shares | Dissolved |
| ENLIGHTEN PROFESSIONAL TRAINING INSTITUTE LIMITED | Private company limited by shares | Live |
| EQUILIBRIUM INSTITUTE OF PROFESSIONAL TRAINING LIMITED -THE- | Private company limited by shares | Live |
| Professional Pets Training Institute Limited | Private company limited by shares | Live |
| INSTITUTE FOR PROFESSIONAL TRAINING IN PSYCHOTHERAPY LIMITED | Private company limited by shares | Live |
| UNIVERSAL PROFESSIONAL SPORTS INSTITUTE COMPANY LIMITED | Private company limited by shares | Dissolved |
| INSTITUTE OF PROFESSIONAL UPGRADATION COMPANY LIMITED | Private company limited by shares | Live |
| ASIAN FITNESS PROFESSIONALS INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| Institute of Chartered Secretaries and Governance Professionals Limited -The- | Private company limited by shares | Live Commenced dormancy on 02-Aug-2017 |
| GBA Institute of Enterprise Professionals Company Limited | Private company limited by shares | Live |
| GLOBAL INSTITUTE FOR PROFESSIONALS LIMITED | Private company limited by shares | Live |
| Global Institute of Financial Professionals Limited | Company limited by guarantee | Live |
| HONG KONG INSTITUTE OF COMPUTER PROFESSIONALS LIMITED | Company limited by guarantee | Dissolved |
| HONG KONG INSTITUTE FOR COUNSELLING PROFESSIONALS LIMITED | Private company limited by shares | Live |
| INSTITUTE OF UNRETIRING PROFESSIONALS LIMITED | Private company limited by shares | Live |
| Professor Rabie's Institute of Graduate Orthodontics Limited | Private company limited by shares | Live |
| AMERICAN INSTITUTE FOR ENGLISH PROFICIENCY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG INSTITUTE OF PROJECT MANAGEMENT LIMITED | Company limited by guarantee | Live |
| CHINA PROMOTION RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| HEALTH EDUCATION & PROMOTION INSTITUTE LIMITED | Private company limited by shares | Live |
| CHINA ENTERPRISE PROPAGATION RESEARCH INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| DEYI PROPERTY STRATEGY INSTITUTE (INT'L) LIMITED | Private company limited by shares | Dissolved |
| GBA INTELLECTUAL PROPERTY INSTITUTE LIMITED | Private company limited by shares | Live |
| INTERNET INTELLECTUAL PROPERTY INSTITUTE LIMITED | Private company limited by shares | Live |
| Jiaheng Intellectual Property Research Institute Limited | | Live |
| PropTech Institute Limited | Company limited by guarantee | Live |
| PRO-SPORTS INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| CHINA CLASSICAL TCM PROTECTION&DEV. INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| PROTEIN INSTITUTE (CHINA) LIMITED | Private company limited by shares | Dissolved |
| Provident Learning Institute Limited | | Live |
| London Provision Fashion Business Institute Limited | Private company limited by shares | Live |
| PSYCHOFEEDBACK INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| INSTITUTE OF PSYCHOLOGICAL FIRST AID LIMITED | Company limited by guarantee | Live |
| H.K DECODER PSYCHOLOGY INSTITUTE LIMITED | Private company limited by shares | Live |
| Institute for Family & Psychology Limited | Private company limited by shares | Live |
| China Psychosomatic Medical Institute Co., Limited | Private company limited by shares | Live |
| IPC INSTITUTE OF PSYCHOTHERAPY AND COUNSELLING LIMITED | Private company limited by shares | Dissolved |
| Institute for Public Art Limited | Company limited by guarantee | Live |
| INSTITUTE OF CHINESE LAW (PUBLISHERS) LIMITED | Private company limited by shares | Dissolved |
| Advanced Scientific Research Publishing Institute Limited | | Live |
| QHJL INTERNET CAPITAL INSTITUTE LIMITED | Private company limited by shares | Live |
| INSTITUTE OF WISDOM & POWER QI-GONG, LIMITED -THE- | Company limited by guarantee | Dissolved |
| Gao Qing Research & Design Institute (Company) Limited | Private company limited by shares | Live |
| QING EMPEROR RESEARCH INSTITUTE CO. LIMITED | Private company limited by shares | Dissolved |
| Chinese qingjiu Research Institute Limited | | Live |
| Qingxin Therapy Institute Limited | Private company limited by shares | Live |
| HK QingYanTang Skin Health Research Institute Limited | Private company limited by shares | Live |
| QINGZITANG RESEARCH INSTITUTE LIMITED | | Live |
| ASIAN SOFTWARE QUALITY INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| ASIAN SOFTWARE QUALITY INSTITUTE LIMITED | Private company limited by shares | Live |
| Bayn Quality Institute HK Limited | Private company limited by shares | Dissolved |
| SERVICE QUALITY STANDARD INSTITUTE LIMITED | Company limited by guarantee | Dissolved |
| China Institute of Quality Science and Technology Limited | | Live |
| CHINA QUANTITATIVE INVESTMENT RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| Ritzy Research Institute (Quantum) Limited | Private company limited by shares | Live |
| INSTITUTE OF QUARRYING (HK) CONFERENCE AND EXHIBITION LIMITED | Company limited by guarantee | Dissolved |
| Quest Institute Limited | Company limited by guarantee | Live |
| QUEST INSTITUTE ASIA LIMITED | Company limited by guarantee | Live |
| HK PHENOL QUINONE EASY INSTITUTE LIMITED | Private company limited by shares | Live |
| China Radiation and Environmental Engineering Research Institute Limited | Private company limited by shares | Dissolved |
| Raisewin Research Institute Co., Limited | Private company limited by shares | Live |
| USA HAFO RARE BIOLOGICAL INSTITUTE LIMITED | Private company limited by shares | Live |
| BELL FINANCIAL STANDARD & RATINGS INSTITUTE LIMITED -THE- | Private company limited by shares | Dissolved |
| CHINA INSTITUTE OF READING LIMITED | Private company limited by shares | Live |
| China Institute of Real Estate Agents Limited | Private company limited by shares | Live |
| HONG KONG INSTITUTE OF REAL ESTATE LIMITED | Private company limited by shares | Live |
| CHINA REDBUD (HK) PAINTING INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| REEL TO REEL INSTITUTE LIMITED | Company limited by guarantee | Live |
| Refocus Low Temperature Research Institute Limited | Private company limited by shares | Live |
| CHINA TAOISM REGIMEN RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| ASIAN INDIAN OCEAN REGION INVESTMENT PROMOTION INSTITUTE LIMITED | Private company limited by shares | Live |
| CHINA REGIONAL ECONOMIC DEV. RESEARCH INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| ASIAN REGIONAL ARCHITECTURAL CULTURE RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| RESEARCH INSTITUTE OF CHINA REGIONAL ECONOMY VALUATION PLANNING LIMITED | Private company limited by shares | Dissolved |
| Institute of Chinese Registered Financial Analysts Limited | Private company limited by shares | Live |