| ONLINK CONSULTANTS LIMITED | Private company limited by shares | Live |
| ON-LINK CORPORATION LIMITED | Private company limited by shares | Live |
| ONLINK ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ONLINK ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ONLINK ENTERPRISES LIMITED | Private company limited by shares | Live Commenced dormancy on 11-Jun-2013 |
| ONLINK (H.K.) LIMITED | Private company limited by shares | Live |
| ONLINK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| ONLINK (HK) INDUSTRIAL LIMITED | Private company limited by shares | Live |
| ONLINK INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ONLINK INVESTMENT LIMITED | Private company limited by shares | Live |
| ONLINK INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ONLINK MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| ONLINK TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| ONLINK TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HK ONLINK TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Onlink Textiles Limited | Private company limited by shares | Live |
| ONLINK TRADING LIMITED | Private company limited by shares | Dissolved |
| ONLINK TECHNOLOGY TRADING LIMITED | Private company limited by shares | Live |
| ONLINKS CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| ONLINKS ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| ONLINKS ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ONLINKS GARMENTS LIMITED | Private company limited by shares | Dissolved |
| ONLINKS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ONLINKS MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| ONLINKS TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| ONLION LIMITED | Private company limited by shares | Live |
| ONLISSE FRANCE GROUP (ASIA PACIFIC) LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Onlite Electronics Limited | Private company limited by shares | Live |
| ONLITE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ONLITEX ELECTRONIC HOLDING LIMITED | Private company limited by shares | Live |
| ONLLY LIMITED | Private company limited by shares | Live |
| Onllycase Limited | Private company limited by shares | Live |
| ONLON LIMITED | Private company limited by shares | Dissolved |
| ONLONG LIMITED | Private company limited by shares | Dissolved |
| ONLONG ENTERPRISE LIMITED | Private company limited by shares | Live |
| ONLONG ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ONLONG RESOURCES LIMITED | Private company limited by shares | Dissolved |
| ONLOOK COMPANY LIMITED | Private company limited by shares | Dissolved |
| ONLOOKER COMPANY LIMITED | Private company limited by shares | Dissolved |
| Onlooker Limited | | Live |
| ONLOP ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Onlor.com Limited | Private company limited by shares | Dissolved |
| ONLORD LIMITED | Private company limited by shares | Dissolved |
| ONLUCK ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ONLUCK FINANCE LIMITED | Private company limited by shares | Live |
| ONLUCK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| ONLUCK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ONLUCK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ONLUCK TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ONLUCK TRADING LIMITED | Private company limited by shares | Dissolved |
| ONLUG ENTERPRISE LIMITED | Private company limited by shares | Live |
| Onlumen Limited | Private company limited by shares | Live |
| ONLUNG LIMITED | Private company limited by shares | Live |
| ONLUX LIMITED | Private company limited by shares | Live |
| ONLUX BEAUTY LIMITED | Private company limited by shares | Live |
| ONLUX ELECTRIC CO., LIMITED | Private company limited by shares | Live |
| ONLUX INVESTMENT LIMITED | Private company limited by shares | Live |
| ONLUXE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ONLY ONE COMPANY LIMITED | Private company limited by shares | Dissolved |
| PM ONLY LIMITED | Private company limited by shares | Dissolved |
| ONLY LIMITED | Private company limited by shares | Dissolved |
| ONLY ONE LIMITED | Private company limited by shares | Dissolved |
| ONLY U LIMITED | Private company limited by shares | Live |
| ONE & ONLY LIMITED | Private company limited by shares | Live |
| ONLY KEY LIMITED -THE- | Private company limited by shares | Dissolved |
| ONLY ONE LIMITED -THE- | Private company limited by shares | Live |
| ONLY AP LIMITED | Private company limited by shares | Live |
| only you by Limited | Private company limited by shares | Live |
| ONLY SKY LIMITED | Private company limited by shares | Live |
| TEA ONLY LIMITED | Private company limited by shares | Live |
| Only You Limited | Private company limited by shares | Live |
| One Only One Limited | Private company limited by shares | Live |
| Bao Only Limited | Private company limited by shares | Live |
| New Only Limited | | Live |
| Up Only Limited | | Live |
| One & Only Advisor Limited | Private company limited by shares | Live |
| ONLY ASIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| ONLY BEST COMPANY LIMITED | Private company limited by shares | Dissolved |
| ONLY BRIGHT LIMITED | Private company limited by shares | Live |
| ONLY CAFE LIMITED | Private company limited by shares | Live |
| CASH ONLY LIMITED | Private company limited by shares | Live |
| Only One Catering Limited | Private company limited by shares | Live |
| CATS ONLY LIMITED | Private company limited by shares | Dissolved |
| Only Choice Limited -The- | Private company limited by shares | Dissolved |
| I Only Fly First Class Limited | Private company limited by shares | Live |
| ONLY CO., LIMITED | Private company limited by shares | Live |
| HK ONLY CO., LIMITED | Private company limited by shares | Live |
| Only Beauty Co., Limited | Private company limited by shares | Live |
| ONLY ONE CREATIVE CO., LIMITED | Private company limited by shares | Live |
| Only Digital Co., Limited | Private company limited by shares | Live |
| HK ONLY ELECTRONICS CO., LIMITED | Private company limited by shares | Dissolved |
| ONLY FOOTWEAR CO., LIMITED | Private company limited by shares | Live |
| GENELEC ONLY CO., LIMITED | Private company limited by shares | Live |
| Only Industry Co., Limited | | Live |
| Smart Only Industry Co., Limited | Private company limited by shares | Live |
| ONLY JEWELRY BOUTIQUE CO., LIMITED -THE- | Private company limited by shares | Dissolved |
| Only Joyful Co., Limited | Private company limited by shares | Live |
| ONLY LUXURY CO., LIMITED | Private company limited by shares | Live |
| ONLY ORIGINAL COMPONENTS CO., LIMITED | Private company limited by shares | Live |
| ONLY ONE SHIPPING SERVICE CO., LIMITED | Private company limited by shares | Live |