| I-CRONY INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| ICROSS HK LIMITED | Private company limited by shares | Live |
| iCross System HK Limited | Private company limited by shares | Live |
| iCrowdU Limited | Private company limited by shares | Live |
| I-CROWN LIMITED | Private company limited by shares | Dissolved |
| ICRUNCH LIMITED | Private company limited by shares | Dissolved |
| ICRUSH LIMITED | Private company limited by shares | Live |
| I.C.S. LIMITED | Private company limited by shares | Dissolved |
| IC&S Limited | Private company limited by shares | Live |
| Chief (I.C.S.) Agency Limited | Private company limited by shares | Live |
| I.C.S. CONSULTING LIMITED | Private company limited by shares | Dissolved |
| International Complex Solutions (ICS) Limited | | Live |
| I.C.S. international consulting and services Limited | Private company limited by shares | Live |
| DEVELOP PROPERTY AGENCY (I.C.S.) LIMITED | Private company limited by shares | Live |
| KIN FU REALTY (ICS) LIMITED | Private company limited by shares | Live |
| ICS, TRAVEL MANAGEMENT LIMITED | Private company limited by shares | Live |
| ICSA LIMITED | Private company limited by shares | Live |
| ICSBOM ELECTRONIC CO., LIMITED | | Live |
| ICSCAN UK LIMITED | Private company limited by shares | Live |
| ICS-EA LIMITED -THE- | Private company limited by shares | Live |
| HONG KONG ICSEI 2000 LIMITED | Company limited by guarantee | Dissolved |
| ICSEN LIMITED | | Live |
| ICSF Limited | Private company limited by shares | Live |
| Icsheets electronics Co., Limited | | Live |
| ICSHIP INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ICSHIP INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| ICSM (HK) LIMITED | Private company limited by shares | Dissolved |
| ICSOEASY LIMITED | | Live |
| ICSOLE TECHNOLOGY LIMITED | | Live |
| ICSOSO ELECTRONICS COMPANY LIMITED | Private company limited by shares | Live |
| ICSP Limited | Private company limited by shares | Live |
| ICspine Limited | Private company limited by shares | Live |
| Icspro Limited | Private company limited by shares | Live |
| ICS-TEK LIMITED | Private company limited by shares | Dissolved |
| IC-Strategistic Company Limited | | Live |
| ICSTRONIC COMPONENTS TRADING LIMITED | | Live |
| HONGKONG IC-Style LIMITED | Private company limited by shares | Dissolved |
| ICSUGO ELECTRONICS LIMITED | Private company limited by shares | Live |
| IC-SUNNY LIMITED | Private company limited by shares | Live |
| Icsupers Co., Limited | | Live |
| ICSUPPER TECH CO., LIMITED | Private company limited by shares | Dissolved |
| ICSUPPLI TECHNOLOGY SERVICE LIMITED | Private company limited by shares | Live |
| ICTC Limited | Private company limited by shares | Live |
| ICTC ASIA LIMITED | Private company limited by shares | Dissolved |
| ICTC PVT. LIMITED | Private company limited by shares | Dissolved |
| ICTG LIMITED | Private company limited by shares | Live |
| ICTH MANAGE ASSOCIATION LIMITED | | Live |
| PENTE ARTOUS DUO ICTHUAS LIMITED | Private company limited by shares | Live |
| ICTI CARE Asia Limited | Private company limited by shares | Dissolved |
| ICTI CARE FOUNDATION ASIA LIMITED | Company limited by guarantee | Live |
| ICTION (HONG KONG) INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| ICTION (HONG KONG) TECHNOLOGY LIMITED | Private company limited by shares | Live |
| I.CTION (HONGKONG) INVESTMENT CO., LIMITED | Private company limited by shares | Dissolved |
| ICTjob Asia Limited | Private company limited by shares | Live |
| ICTK LIMITED | Private company limited by shares | Live |
| ICT-LANTO LIMITED | Private company limited by shares | Live |
| ICTO LIMITED | Private company limited by shares | Dissolved |
| ICTP LIMITED | Private company limited by shares | Live |
| ICTR ASIA LIMITED | Private company limited by shares | Live |
| IC-TRADE.COM LIMITED | Private company limited by shares | Live |
| ICTRUE LIMITED | Private company limited by shares | Live |
| ICTS Company Limited | Private company limited by shares | Dissolved |
| ICTS Asia Limited | Private company limited by shares | Live |
| ICTSI (Hong Kong) Limited | Private company limited by shares | Live |
| ICTS-INTERNATIONAL CONSULTANTS ON TARGETED SECURITY (HK) LIMITED | Private company limited by shares | Dissolved |
| SIR ROBERT BLACK COLLEGE OF EDUCATION STUDENTS' UNION (I.C.T.T.) ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| iCulture HK Limited | | Live |
| ICUNet Limited | | Live |
| ICURA ASIA LIMITED | Private company limited by shares | Dissolved |
| iCure Limited | Private company limited by shares | Live |
| I-CURRY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ICUS INTERNATIONAL LANDSCAPE ARCHITECTURE CO., LIMITED | Private company limited by shares | Dissolved |
| iCust Limited | | Live |
| I-Cute Art & Crafts Co., Limited | Private company limited by shares | Live |
| ICUTE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| I-Cute Technology Limited | Private company limited by shares | Live |
| HONGKONG ICUUCI CO., LIMITED | Private company limited by shares | Live |
| ICUVA LIMITED | Private company limited by shares | Live |
| ICWFF LIMITED | Private company limited by shares | Live |
| iCyan System Limited | Private company limited by shares | Live |
| Icybay New Energy Group Limited | | Live |
| I.CYBER LIMITED | Private company limited by shares | Live |
| iCybermate Limited | Private company limited by shares | Live |
| ICYBERPORT LIMITED | Private company limited by shares | Dissolved |
| ICYFOODIE COMPANY LIMITED | | Live |
| Hong Kong ICYINN Information & Technology Limited | Private company limited by shares | Live |
| icyLand Limited | Private company limited by shares | Live |
| Icyworld Trading Limited | Private company limited by shares | Live |