| Hong Kong Oriental Institute of Yi Jin Jing Limited | | Live |
| HONG KONG INSTITUTE OF ORTHODONTICS COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG TRAUMATOLOGY AND ORTHOPAEDICS INSTITUTE LIMITED | Private company limited by shares | Live |
| PADMASAMBHAVA PEACE INSTITUTE (HONG KONG) LIMITED | Company limited by guarantee | Live |
| HONG KONG INSTITUTE OF PARALEGALS LIMITED | Company limited by guarantee | Live |
| HONG KONG INSTITUTE OF PARAMEDICINE LIMITED | Company limited by guarantee | Live |
| Hong Kong Institute of Pharmacy Limited | | Live |
| Hong Kong Pharmacy Research Institute Limited | | Live |
| Hong Kong Philosophy Research Institute Limited | | Live |
| INSTITUTE OF HONG KONG PIANO COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG INSTITUTE OF PLANNING ENGINEERS LIMITED | Company limited by guarantee | Live |
| Social Planning Institute of Hong Kong Limited -The- | Company limited by guarantee | Live |
| HONG KONG PLASTIC SURGERY INSTITUTE LIMITED | Private company limited by shares | Live |
| HONG KONG INSTITUTE OF NATUROPATHIC PRACTITIONERS LIMITED | Company limited by guarantee | Live |
| HONG KONG PRINCIPALS' INSTITUTE LIMITED -THE- | Company limited by guarantee | Live |
| HONG KONG FILM PRODUCTION INSTITUTE LIMITED | Private company limited by shares | Live |
| INTELLECTUAL PROPERTY INSTITUTE OF HONG KONG LIMITED -THE- | Company limited by guarantee | Dissolved |
| Hong Kong Institute of Intellectual Property Limited | Private company limited by shares | Live |
| HONG KONG INSTITUTE OF PROPERTY MANAGERS LIMITED | Company limited by guarantee | Dissolved |
| HONG KONG PROVIEW INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| HONG KONG INSTITUTE OF OH PSYCHOLOGY LIMITED -THE- | Private company limited by shares | Live |
| Hong Kong Institute of Psychology Limited | Private company limited by shares | Live |
| Hong Kong Public Relations Institute Limited | Private company limited by shares | Live |
| Hong Kong Institute of Sinology Publishing Limited | Private company limited by shares | Live |
| HONG KONG PUTI MEDITATION INSTITUTE LIMITED | Company limited by guarantee | Live |
| HONG KONG QUALITY INSTITUTE LIMITED | Company limited by guarantee | Dissolved |
| INSTITUTE OF HUMAN RELATIONS (HONG KONG) LIMITED | Company limited by guarantee | Dissolved |
| Hong Kong Asian Art Research Institute Limited | Private company limited by shares | Live |
| Hong Kong CrustBox Research Institute Limited | | Live |
| HONG KONG FINANCIAL RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| Hong Kong Institute of Health Research Limited | | Live |
| HONG KONG WTO RESEARCH INSTITUTE LIMITED | Company limited by guarantee | Live |
| BGI Hong Kong Research Institute Limited | Company limited by guarantee | Live |
| Hong Kong Research Institute Limited | | Live |
| HONG KONG INSTITUTE OF MEDICAL RESEARCH COMPANY LIMITED | Private company limited by shares | Live |
| Hong Kong Medical Research Institute Limited | | Live |
| Hong Kong Mnemonics Research Institute Company Limited | Private company limited by shares | Live |
| HONG KONG INSTITUTE FOR MONETARY RESEARCH | Private company limited by shares | Live |
| HONG KONG OIL PAINTING RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| Hong Kong Painting Research Institute Limited | | Live |
| HONG KONG RECONOMY RESEARCH INSTITUTE COMPANY LIMITED | Private company limited by shares | Live |
| JIN YUE (HONG KONG) TECHNOLOGY RESEARCH INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| HONG KONG TAI CHI RESEARCH AND TRAINING INSTITUTE CO LIMITED | Private company limited by shares | Dissolved |
| FMF HONG KONG WHITENING RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| HONG KONG HUMAN RESOURCES INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| ROBOT INSTITUTE OF HONG KONG LIMITED | Private company limited by shares | Live |
| Hong Kong Institute for AI and Robotics Limited | Private company limited by shares | Live |
| HONG KONG ROYAL INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| HONG KONG ROYAL INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Institute of Road Safety Limited | Company limited by guarantee | Live |
| Hong Kong Sansi Institute Limited | Private company limited by shares | Live |
| Hong Kong Institute for Satoyama Initiatives Limited | Private company limited by shares | Live |
| HUGEHEART HONG KONG SCHOLARS INSTITUTE LIMITED | | Live |
| HONG KONG INSTITUTE OF COMPANY SECRETARIES LIMITED -THE- | Company limited by guarantee | Live |
| HONG KONG INSTITUTE OF SECURITY LIMITED -THE- | Private company limited by shares | Live |
| HONG KONG SHAANXI INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| HONG KONG INSTITUTE OF SINOLOGY LIMITED | Private company limited by shares | Live |
| HONG KONG HAN BAI SKIN RESTORATION INSTITUTE LIMITED | Private company limited by shares | Live |
| HONG KONG INSTITUTE OF SOCIAL WORK LIMITED | Private company limited by shares | Live |
| HONG KONG INSTITUTE OF SOMMELIERS LIMITED | Private company limited by shares | Live |
| HONG KONG SPANISH INSTITUTE LIMITED -THE- | Private company limited by shares | Live |
| Hong Kong Arts Sports Institute Limited | Private company limited by shares | Live |
| HONG KONG SPORTS INSTITUTE LIMITED | Company limited by guarantee | Live |
| Hong Kong Institute of Sports Rehabilitation Limited | Private company limited by shares | Live |
| THE HONG KONG INSTITUTE OF CERTIFIED ESG STRATEGISTS LIMITED | | Live |
| HONG KONG CHINESE STUDIES INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Institute of Legal Studies Limited | Private company limited by shares | Live |
| Hong Kong Talent Institute Limited | Private company limited by shares | Live |
| HONG KONG TAOISM INSTITUTE LIMITED | Company limited by guarantee | Live |
| Hong Kong Teachers Institute Limited | Private company limited by shares | Live |
| HONG KONG INSTITUTE OF HAIR-STYLE ART AND TECHNIQUE, LIMITED | Company limited by guarantee | Dissolved |
| HONG KONG INSTITUTE OF LIFE TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| HONG KONG INSTITUTE OF TECHNOLOGIST LIMITED -THE- | Private company limited by shares | Dissolved |
| HONG KONG INSTITUTE OF TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HONG KONG MEDICAL TECHNOLOGY INSTITUTE LIMITED | Private company limited by shares | Live |
| Gem Testing and Research Institute of Hong Kong Limited | Private company limited by shares | Live |
| HONG KONG YOUNGSAN INSTITUTE OF THEOLOGY LIMITED | Company limited by guarantee | Live |
| HONG KONG INSTITUTE OF SPEECH THERAPISTS LIMITED | Company limited by guarantee | Live |
| INSTITUTE OF COGNITIVE THERAPY (HONG KONG) LIMITED | Company limited by guarantee | Live |
| Hong Kong Institute of Tui Na Therapy Company Limited | Private company limited by shares | Live |
| HONG KONG INSTITUTE OF OCCUPATIONAL THERAPY LIMITED | Company limited by guarantee | Live |
| HONG KONG SOFT TISSUE INSTITUTE LIMITED | Private company limited by shares | Live |
| TOBACCO INSTITUTE OF HONG KONG LIMITED | Company limited by guarantee | Dissolved |
| HONG KONG INSTITUTE OF TOURISM LIMITED | Company limited by guarantee | Dissolved |
| Hong Kong Institute of Trainers Limited -The- | Private company limited by shares | Live |
| HONG KONG TRAINING INSTITUTE LIMITED | Private company limited by shares | Live |
| HONG KONG LEGAL TRAINING INSTITUTE LIMITED | Private company limited by shares | Live |
| HONG KONG INSTITUTE OF LEGAL TRANSLATION LIMITED | Company limited by guarantee | Live |
| HONG KONG INSTITUTE OF WINES LIMITED | Company limited by guarantee | Live |
| HONG KONG YIDAO FINANCIAL INSTITUTE LIMITED | Private company limited by shares | Live |
| Hong Kong Institute of Yoga Limited | Private company limited by shares | Dissolved |
| HONG KONG ZOOLOGICAL EDUCATION INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| HK HONGDAO FINANCIAL RESEARCH INSTITUTE CO., LIMITED | Private company limited by shares | Dissolved |
| HongKong Administration Research Institute Of Cultural Heritage Holding Limited | Private company limited by shares | Live |
| Hongkong CangTianXia Antiques Appraisal Institute Limited | Private company limited by shares | Live |
| ASIA STRATEGIC INSTITUTE HONGKONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONGKONG CATHOLIC BIBLICAL INSTITUTE LIMITED | Company limited by guarantee | Live |
| HongKong International Institute Of Biotechnology Co., Limited | Private company limited by shares | Live |
| HONGKONG RESEARCH INSTITUTE OF BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| PPG BRAND PLANNING (HONGKONG) RESEARCH INSTITUTE COMPANY LIMITED | Private company limited by shares | Live |