| COLIN LIMITED | Private company limited by shares | Dissolved |
| COLIN LIMITED | Private company limited by shares | Live |
| AMERICA COLIN CO., LIMITED | Private company limited by shares | Live |
| COLIN (ASIA) LIMITED | Private company limited by shares | Live |
| JOEY COLIN ASSOCIATES COMMERCIAL LIMITED | Private company limited by shares | Live |
| CATHERINE COLIN CO. LIMITED | Private company limited by shares | Live |
| COLIN CHAN CONSULTING ENGINEERS LIMITED | Private company limited by shares | Live |
| COLIN BO CO., LIMITED | Private company limited by shares | Live |
| COLIN (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| Colin Landscape Co., Limited | | Live |
| COLIN DESIGN LIMITED | Private company limited by shares | Live |
| COLIN ELECTRONICS LIMITED | Private company limited by shares | Live |
| COLIN ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| COLIN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Colin Furniture Limited | Private company limited by shares | Dissolved |
| COLIN INDUSTRIAL LIMITED | Private company limited by shares | Live |
| HK COLIN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| COLIN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| COLIN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Jasper Colin Research Limited | Private company limited by shares | Live |
| COLIN MACKENZIE & COMPANY LIMITED | Private company limited by shares | Dissolved |
| COLIN BAKERY MANAGEMENT LIMITED | Private company limited by shares | Live |
| COLIN MACKENZIE & COMPANY (MANUFACTURING) LIMITED | Private company limited by shares | Dissolved |
| COLIN R. MCCREATH LIMITED | Private company limited by shares | Dissolved |
| NOEL COLIN LIMITED | Private company limited by shares | Dissolved |
| COLIN ROSS LIMITED | Private company limited by shares | Dissolved |
| Colin123 Minerals Limited | | Live |
| Colinda Company Limited | Private company limited by shares | Live |
| COLINDALE LIMITED | Private company limited by shares | Dissolved |
| COLINDALE INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| COLINE Limited | Private company limited by shares | Live |
| COLING LIMITED | Private company limited by shares | Dissolved |
| COLING TRADE LIMITED | Private company limited by shares | Live |
| COLINGA COMPANY LIMITED | Private company limited by shares | Live |
| COLINITY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CO-LINK LIMITED | Private company limited by shares | Live |
| COLINK LIMITED | Private company limited by shares | Dissolved |
| Colink Technology Co., Limited | Private company limited by shares | Live |
| Colink Network Technology HK CO., Limited | Private company limited by shares | Live |
| COLINK CONSULTANCY LIMITED | Private company limited by shares | Live |
| Co-Link Consultant Limited | | Live |
| Co-Link Creative Company Limited | | Live |
| CO-LINK DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| CO-LINK ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| COLINK FIBER TRADE CO., LIMITED | Private company limited by shares | Live |
| Colink Supply Chain (HK) Co., Limited | Private company limited by shares | Live |
| Colink Electronics (HK) Co., Limited | Private company limited by shares | Live |
| COLINK HOLDINGS LIMITED | Private company limited by shares | Live |
| CO-LINK INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| CO-LINK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CO-LINK GLOBAL LOGISTICS (HK) CO., LIMITED | Private company limited by shares | Live |
| CO-LINK TECH LIMITED | | Live |
| Colink Star Technology Limited | Private company limited by shares | Live |
| COLINS (H.K.) INDUSTRIAL LIMITED | Private company limited by shares | Live |
| COLINS INTERNATIONAL TRADING CO LIMITED | Private company limited by shares | Live |
| COLINTON INVESTMENT LIMITED | Private company limited by shares | Live |