| INFORMA LIMITED | Private company limited by shares | Live |
| Informa Exhibition Limited | | Live |
| Aha Informa Innovation Limited | | Live |
| INFORMA ASIA PUBLISHING LIMITED | Private company limited by shares | Dissolved |
| INFORMA TECH LIMITED | | Live |
| INFORMAGE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| IN.FORMAL LIMITED | | Live |
| CHINA INFORMAL MEDICAL ASSOCIATION LIMITED | Private company limited by shares | Live |
| INFORMAL EDUCATION SOCIETY LIMITED | Private company limited by shares | Dissolved |
| INFORMASIA LIMITED | Private company limited by shares | Dissolved |
| IN-FORMAT COMPANY LIMITED | Private company limited by shares | Dissolved |
| IN-FORMAT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| INFORMAT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| IN-FORMAT FINANCE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| IN-FORMAT INTERNATIONAL (GROUP) LIMITED | Private company limited by shares | Dissolved |
| INFORMATIC LIMITED | Private company limited by shares | Dissolved |
| FUJIAN BOC INFORMATIC (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| INFORMATICA LIMITED | Private company limited by shares | Dissolved |
| Informantem - Informatica e Manutencao Limited | Private company limited by shares | Live |
| INFORMATICA MEGASUR SL LIMITED | Private company limited by shares | Live |
| INFORMATICA SOFTWARE LIMITED | Private company limited by shares | Live |
| INFORMATICS LIMITED | Private company limited by shares | Dissolved |
| PPW INFORMATICS LIMITED | Private company limited by shares | Live |
| HSD HK INFORMATICS LIMITED | Private company limited by shares | Live |
| PPW Informatics Limited | Private company limited by shares | Live |
| KW Informatics Limited | | Live |
| Abbott Informatics Asia Pacific Limited | Private company limited by shares | Live |
| ADVANCED INFORMATICS LIMITED | Private company limited by shares | Live |
| UNICORN ADVANCED INFORMATICS LIMITED | Private company limited by shares | Dissolved |
| QIHANG AEGIS INFORMATICS (HK) LIMITED | Private company limited by shares | Live |
| BISS INFORMATICS LIMITED | Private company limited by shares | Dissolved |
| CHINESE BOOK OF CHANGES INFORMATICS LIMITED | Private company limited by shares | Live |
| INFORMATICS (NORTH CHINA) LIMITED | Private company limited by shares | Dissolved |
| CINOTECH INFORMATICS LIMITED | Private company limited by shares | Dissolved |
| CITY BUSINESS INFORMATICS LIMITED | Private company limited by shares | Dissolved |
| GENMINIX INFORMATICS HK CO., LIMITED | Private company limited by shares | Live |
| INFORMATICS COMPUTING LIMITED | Private company limited by shares | Dissolved |
| INFORMATICS CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| HHH Informatics Corporation Limited | Private company limited by shares | Live |
| A Cubed Informatics Limited | | Live |
| GEOMETRIC INFORMATICS TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| GLOBAL-LINK INFORMATICS LIMITED | Private company limited by shares | Live |
| GOLDFORD INFORMATICS LIMITED | Private company limited by shares | Live |
| China Health Informatics Limited | Private company limited by shares | Live |
| MENTAL HEALTH INFORMATICS LIMITED | Private company limited by shares | Dissolved |
| HerbMiners Informatics Limited | Private company limited by shares | Live |
| D&B INFORMATICS (HK) LIMITED | Private company limited by shares | Dissolved |
| INFORMATICS EDUCATION (HK) LIMITED | Private company limited by shares | Live |
| INFORMATICS RESOURCES (H.K.) LIMITED | Private company limited by shares | Dissolved |
| M. TECH INFORMATICS (HK) LIMITED | Private company limited by shares | Live |
| Alliance Informatics (Hong Kong) Co., Limited | | Live |
| Bounga Informatics (Hong Kong) Limited | Private company limited by shares | Live |
| INFORMATICS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| GLOBALNET INFORMATICS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| BIOMETRIC INFORMATICS TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| TopTech Informatics (Hong Kong) Limited | Private company limited by shares | Live |
| Index Informatics Limited | Private company limited by shares | Live |
| Infinity Informatics Limited | Private company limited by shares | Live |
| Innovation Informatics Institution Limited | Private company limited by shares | Live |
| COMMUTECH INTERNATIONAL INFORMATICS TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| HEALTH LINK INFORMATICS LIMITED | Private company limited by shares | Dissolved |
| Asia Pacific Association for Medical Informatics Limited | Company limited by guarantee | Live |
| HerbMiners Medical Informatics Limited | Private company limited by shares | Live |
| Meteorite Informatics Limited | Private company limited by shares | Live |
| MICROMAX INFORMATICS LIMITED | Private company limited by shares | Dissolved |
| MICROMAX INFORMATICS LIMITED | Private company limited by shares | Live |
| Neo-Health Informatics Limited | Private company limited by shares | Live |
| POWER INFORMATICS LIMITED | Private company limited by shares | Live |
| Geomeo Informatics Private Limited | Private company limited by shares | Live |
| INFORMATICS PROFESSIONAL TRAINING LIMITED | Private company limited by shares | Dissolved |
| INFORMATICS (SHANGHAI) LIMITED | Private company limited by shares | Dissolved |
| Sherby Informatics Limited | | Live |
| SINO-GERMAN INFORMATICS (HK) LIMITED | Private company limited by shares | Live |
| HONG KONG SOCIETY OF MEDICAL INFORMATICS LIMITED | Company limited by guarantee | Live |
| GF STAGE INFORMATICS LIMITED | Private company limited by shares | Dissolved |
| SCUBA INFORMATICS TRAVEL AGENCY LIMITED | Private company limited by shares | Live |
| HONG KONG NORTH INFORMATIOMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| A B INFORMATION LIMITED | Private company limited by shares | Dissolved |
| AGA INFORMATION LIMITED | Private company limited by shares | Live |
| MG INFORMATION LIMITED | Private company limited by shares | Dissolved |
| TRL INFORMATION LIMITED | Private company limited by shares | Dissolved |
| WEB INFORMATION LIMITED | Private company limited by shares | Dissolved |
| INFORMATION AGE LIMITED | Private company limited by shares | Dissolved |
| RFB INFORMATION LIMITED | Private company limited by shares | Dissolved |
| 123 INFORMATION LIMITED | Private company limited by shares | Dissolved |
| ITS INFORMATION LIMITED | Private company limited by shares | Dissolved |
| CC INFORMATION LIMITED | Private company limited by shares | Live |
| SKY INFORMATION LIMITED | Private company limited by shares | Live |
| IP INFORMATION LIMITED | Private company limited by shares | Live |
| S&T Information Limited | Private company limited by shares | Live |
| HT INFORMATION LIMITED | Private company limited by shares | Dissolved |
| 8G GD INFORMATION LIMITED | Private company limited by shares | Dissolved |
| SMT INFORMATION NET LIMITED | Private company limited by shares | Live |
| K&A Information Limited | Private company limited by shares | Dissolved |
| N3K INFORMATION PTE LIMITED | Private company limited by shares | Live |
| F&E INFORMATION COMPANY LIMITED | Private company limited by shares | Live |
| NEX INFORMATION LIMITED | Private company limited by shares | Live |
| ECO INFORMATION LIMITED | Private company limited by shares | Live |
| G&A Information Inc Limited | Private company limited by shares | Live |
| H&R INFORMATION LIMITED | Private company limited by shares | Live |