| I.S.C. HONG KONG CO., LIMITED | Private company limited by shares | Live |
| INDUSTRY SOLUTIONS AND CONSULTING (ISC) LIMITED | Private company limited by shares | Live |
| i.s.c. - information security consulting Asia Limited | Private company limited by shares | Live |
| I.S.C. International Strategic Consulting Limited | Private company limited by shares | Dissolved |
| Delmar International (ISC) Limited | Private company limited by shares | Live |
| I.S.C. Lighting Limited | Private company limited by shares | Live |
| PAN-WIN (ISC) LIMITED | Private company limited by shares | Dissolved |
| Pak On ISCA Limited | Private company limited by shares | Dissolved |
| ISCA Co. Limited | | Live |
| ISCA Shoes Company Limited | Private company limited by shares | Dissolved |
| ISCA-AFRICA Trade Logistics Company Limited | Private company limited by shares | Live |
| ISCAM TECHNOLOGY (HONGKONG) LIMITED | Private company limited by shares | Live |
| Iscan Limited | | Live |
| I-SCARAB (H.K.) CO., LIMITED | Private company limited by shares | Live |
| Ischamp Catering Limited | Private company limited by shares | Live |
| ISCHIKO LIMITED | Private company limited by shares | Live |
| iScholar Education Technology Limited | Private company limited by shares | Live |
| ISCHOOLKIDS.NET LIMITED | Private company limited by shares | Dissolved |
| TRIPLE I.SCIENTIFIC LIMITED | Private company limited by shares | Dissolved |
| ISCLASS LIMITED | Private company limited by shares | Live |
| ISCM ELECTRONICS TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ISCM Energy Limited | | Live |
| ISCM Grains Limited | | Live |
| ISCM Pharma Limited | | Live |
| ISCM WORLD NEW MUSIC DAYS 2002 LIMITED -THE- | Company limited by guarantee | Dissolved |
| ISCO LIMITED | Private company limited by shares | Dissolved |
| ISCO CHINA COMPANY LIMITED | Private company limited by shares | Dissolved |
| Isco Group Limited | Private company limited by shares | Live |
| Visionary Isco Co., Limited | | Live |
| ISCODEC COMPANY LIMITED | Private company limited by shares | Dissolved |
| ISCO(HK) Limited | | Live |
| ISCOLA LIMITED | Private company limited by shares | Dissolved |
| ISCORE LIMITED | Private company limited by shares | Live |
| ISCOTEK OPTO-ELECTRONICS LIMITED | Private company limited by shares | Live |
| I-SCREAM LIMITED | Private company limited by shares | Live |
| ISCREEN INDUSTRIAL LIMITED | Private company limited by shares | Live |
| ISCT LIMITED | Private company limited by shares | Dissolved |