| HICO LIMITED | Private company limited by shares | Live |
| Hico Supply Chain Limited | Private company limited by shares | Live |
| HICO GROUP LIMITED | Private company limited by shares | Live |
| HICO INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HICO INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HICO Pacific Limited | Private company limited by shares | Live |
| HICOCO COMPANY LIMITED | Private company limited by shares | Live |
| HICODE LIMITED | | Live |
| HI-CODE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| HI-COLOUR SCANNAR GRAPHICS FACTORY LIMITED | Private company limited by shares | Dissolved |
| HICOM LIMITED | Private company limited by shares | Dissolved |
| New Hicom Limited | Private company limited by shares | Live |
| HICOM SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| HI-CON LIMITED | Private company limited by shares | Live |
| HICON26 COMPANY LIMITED | | Live |
| HICON27 COMPANY LIMITED | | Live |
| HICON28 COMPANY LIMITED | | Live |
| HICON29 COMPANY LIMITED | | Live |
| HICONN ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| HICONN TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| HICONTINENTAL LIMITED | Private company limited by shares | Live |
| HI-CONTROL LIMITED | Private company limited by shares | Dissolved |
| HICOO LIMITED | Private company limited by shares | Live |
| Hi-Cooler Company Limited | Private company limited by shares | Live |
| HICORP LIMITED | Private company limited by shares | Live |
| Hi-Cosmetics Company Limited | Private company limited by shares | Live |
| HICOSMIC LIMITED | Private company limited by shares | Dissolved |
| HICOTEC LIMITED | Private company limited by shares | Live Commenced dormancy on 05-Jul-2013 |
| HICOTECK LIMITED | Private company limited by shares | Live |
| HI-COUL BUSINESS TRADING LIMITED | Private company limited by shares | Dissolved |
| Hicousins Limited | | Live |