| Onepile Tech Limited | | Live |
| ONEPIP (HONG KONG) LIMITED | Private company limited by shares | Live |
| OnePixel Limited | | Live |
| ONEPLACE LIMITED | Private company limited by shares | Live |
| ONEPLAYER LIMITED | Private company limited by shares | Live |
| onePLUS X Limited | Private company limited by shares | Live |
| ONEPLUS ADVERTISING LIMITED | Private company limited by shares | Dissolved |
| OnePlus AgroTech Limited | | Live |
| ONE-PLUS INVESTMENT LIMITED | Private company limited by shares | Live |
| ONEPLUS SHIPPING MARINE SERVICE LIMITED | | Live |
| OnePlus Realty Company Limited | Private company limited by shares | Live |
| OnePlus United Co Limited | Private company limited by shares | Live |
| ONEPLUS WEALTH MANAGEMEN LIMITED | Private company limited by shares | Live |
| OnePlus2 Limited | Private company limited by shares | Live |
| One-Plus-One Consultancy Limited | Private company limited by shares | Live |
| ONEPLUSONE CREATIONS LIMITED | Private company limited by shares | Live |
| ONEPM LIMITED | Private company limited by shares | Live |
| ONEPM SOLUTIONS LIMITED | Private company limited by shares | Live |
| OnePointSix Limited | Private company limited by shares | Live |
| ONEPOLAR ASIA COMPANY LIMITED | Private company limited by shares | Live |
| ONEPORT LIMITED | Private company limited by shares | Live |
| ONEPORT GETS LIMITED | Private company limited by shares | Dissolved |
| OnePress Business Solutions (HK) Limited | Private company limited by shares | Live |
| OnePrice Limited | Private company limited by shares | Live |
| ONEPRINT CO., LIMITED | Private company limited by shares | Live |
| ONEPRO CLOUD LIMITED | Private company limited by shares | Live |
| ONEPRO SMART HK LIMITED | Private company limited by shares | Live |
| One-Product Royal Fruit Company Limited | Private company limited by shares | Live |
| OneQR Limited | Private company limited by shares | Live |
| ONER LIMITED | Private company limited by shares | Live |
| ONER DESIGN & MECHANISM COMPANY LIMITED | Private company limited by shares | Dissolved |
| WEIHAI ONER OUTDOORS CO., LIMITED | Private company limited by shares | Live |
| Oner Electronics Technology Limited | Private company limited by shares | Live |
| OneRaw Technology Limited | Private company limited by shares | Live |
| ONEREE COMPANY LIMITED | Private company limited by shares | Dissolved |
| OneReminder Limited | Private company limited by shares | Live |
| ONEREST LIMITED | | Live |
| Onergy International Company Limited | | Live |
| ONERICH LIMITED | Private company limited by shares | Dissolved |
| ZHEJIANG ONERO VALVE CO., LIMITED | Private company limited by shares | Live |
| ONERO PAPER CRAFT CO., LIMITED | Private company limited by shares | Live |
| QINGDAO ONEROAD INDUSTRIAL LIMITED | Private company limited by shares | Live |
| ONEROUS ELECTRONIC (WORKS) LIMITED | Private company limited by shares | Dissolved |
| OneRule Electric Limited | Private company limited by shares | Live |
| ONES COMPANY LIMITED | Private company limited by shares | Dissolved |
| Ones Limited | Private company limited by shares | Live |
| NU ONES LIMITED | Private company limited by shares | Live |
| C ONE'S Limited | Private company limited by shares | Live |
| ONES & ONES LIMITED | | Live |
| Ones Limited | | Live |
| Blessed Ones Company Limited -The- | Private company limited by shares | Live |
| One's Cafe Limited | Private company limited by shares | Live |
| ONES JEWELRY CO., LIMITED | Private company limited by shares | Live |
| ONES SHIPPING CO., LIMITED | Private company limited by shares | Live |
| ONE'S DESIGN LIMITED | Private company limited by shares | Live |
| ONE'S DOZEN COMPANY LIMITED | Private company limited by shares | Live |
| EXCELLENT ONES LIMITED | Private company limited by shares | Live |
| Ones Fitness Limited | Private company limited by shares | Live |
| ONE'S GIFT LIMITED | Private company limited by shares | Live |
| CAR IN ONES GROUP LIMITED | Private company limited by shares | Live |
| ONES GROUP LIMITED | | Live |
| ONE'S IDEA INVESTMENT (GROUP) LIMITED | Private company limited by shares | Live |
| EXCELLENT ONES INVESTMENTS LIMITED | Private company limited by shares | Live |
| BEST ONE'S QUALITY LIMITED | Private company limited by shares | Dissolved |
| ONES SOFTWARE LIMITED | Private company limited by shares | Live |
| One's Space Company Limited | Private company limited by shares | Live |
| SUNNY ONES LIMITED | | Live |
| Ones Technology Limited | Private company limited by shares | Live |
| THREE ONE'S LIMITED | Private company limited by shares | Live |
| ONES TRADING LIMITED | Private company limited by shares | Live |
| WORTHY ONES LIMITED | Private company limited by shares | Live |
| ONES AND ZEROS REALITY LIMITED | | Live |
| ONESAIL HK LIMITED | Private company limited by shares | Live |
| ONESBOX INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| ONESCAN CO. , LIMITED | | Live |
| ONESCO ELECTRIC CO., LIMITED | Private company limited by shares | Live |
| Onesday International LIMITED | | Live |
| ONESEA LIMITED | Private company limited by shares | Dissolved |
| ONESELF LIMITED | Private company limited by shares | Live |
| oneshandmadethings Limited | Private company limited by shares | Live |
| HK ONESHINE INT'L TRADING INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| ONESHING INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Oneship Limited | Private company limited by shares | Live |
| Oneshoo Limited | | Live |
| ONESHOP LIMITED | Private company limited by shares | Dissolved |
| ONESHOP LIMITED | Private company limited by shares | Live |
| Oneshot FTR Limited | Private company limited by shares | Live |
| AMERICA ONESHOW CO., LIMITED | Private company limited by shares | Dissolved |
| HONG KONG ONESHOW TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ONESHOW INTERNET SERVICES COMPANY LIMITED | Private company limited by shares | Live |
| ONESIA GROUP LIMITED | Private company limited by shares | Live |
| Onesight Limited | Private company limited by shares | Live |
| ONESIME LIMITED | Private company limited by shares | Live |
| ONESIN LIMITED | Private company limited by shares | Live |
| ONESIPHORUS CHURCH LIMITED | Company limited by guarantee | Live |
| ONESIPHORUS MEI LAM CHURCH LIMITED | Company limited by guarantee | Live |
| ONESKY LIMITED | Private company limited by shares | Dissolved |
| OneSky Inc. Limited | Private company limited by shares | Live |
| OneSmarter Limited | Private company limited by shares | Live |
| ONESOAR (HONG KONG) INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |