| Oneflash Technology Limited | Private company limited by shares | Live |
| OneFlexoHLP Company Limited | Private company limited by shares | Live |
| ONEFLY INTERNATIONAL (HONGKONG) LIMITED | Private company limited by shares | Live |
| ONEFLY INTERNATIONAL LIMITED | | Live |
| ONEFLYS INT'L HOLDING GROUP LIMITED | Private company limited by shares | Dissolved |
| OneFootKick Company Limited | Private company limited by shares | Live |
| Oneforall Holding Co., Limited | Private company limited by shares | Live |
| ONEFORCE LIMITED | Private company limited by shares | Dissolved |
| ONEFORD LIMITED | Private company limited by shares | Live |
| ONEFORM PTY LIMITED | Private company limited by shares | Dissolved |
| Onefun Technology Limited | Private company limited by shares | Live |
| OneFun Technology Co., Limited | Private company limited by shares | Live |
| One-gadgets International Co., Limited | Private company limited by shares | Live |
| ONEGAME HOLDING LIMITED | Private company limited by shares | Live |
| onegameshow.com Limited | Private company limited by shares | Live |
| Onege Trading Co., Limited | | Live |
| Onegear Technology Limited | Private company limited by shares | Live |
| onegens Limited | Private company limited by shares | Live |
| ONEGIANT COMPANY LIMITED | Private company limited by shares | Live |
| OneGlass Hong Kong Limited | Private company limited by shares | Dissolved |
| OneGlass International Limited | Private company limited by shares | Dissolved |
| OneGlobal Broking Hong Kong Limited | Private company limited by shares | Live |
| OneGlobe Connect Limited | Private company limited by shares | Live |
| ONEGLOBE CONSOLIDATORS PRIVATE LIMITED | | Live |
| OneGlobe eCommerce Limited | Private company limited by shares | Live |
| OneGo Technology Limited | Private company limited by shares | Live |
| ONEGOAL ESTATES LIMITED | Private company limited by shares | Live |
| Hong Kong Onegol Electronics Co., Limited | Private company limited by shares | Live |
| Onegoodpeople Limited | Private company limited by shares | Live |
| Onegoodpeople Limited | Private company limited by shares | Live |
| ONEGRADE LIMITED | Private company limited by shares | Dissolved |
| OneGreenMech Limited | Private company limited by shares | Dissolved |
| ONEGUIDE.COM (HK) LIMITED | Private company limited by shares | Dissolved |
| ONEGUY LIMITED | Private company limited by shares | Live |
| Onehalf Limited | Private company limited by shares | Live |
| THREE AND ONE-HALF LIMITED | Private company limited by shares | Dissolved |
| ONE-HAND INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| ONEHEALTH COMPANY LIMITED | Private company limited by shares | Dissolved |
| OneHeart (HK) Limited | | Live |
| Oneheart Industrial Company Limited | Private company limited by shares | Live |
| ONEHERMES LIMITED | Private company limited by shares | Live |
| ONE-HI LIMITED | Private company limited by shares | Live |
| D C One.hk Company Limited | Private company limited by shares | Live |
| HK Onehong Limited | | Live |
| ONEHOPE LIMITED | Private company limited by shares | Live |
| ONEHOPE International Company Limited | Private company limited by shares | Live |
| PENFIELD ONE-HOUR PHOTO LIMITED | Private company limited by shares | Dissolved |
| OneHouse Limited | | Live |
| Onehouse (HK) Company Limited | Private company limited by shares | Live |
| OneHundredPlus Limited | Private company limited by shares | Live |
| theDesk OneHysan Limited | Private company limited by shares | Live |
| ONEI INTERNATIONAL GROUP (HK) LIMITED | Private company limited by shares | Live |
| ONEIDA LIMITED | Private company limited by shares | Live |
| ONEIGHT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ONEIGHTY LIMITED | Private company limited by shares | Live |
| OneiHealth Company Limited | Private company limited by shares | Live |
| JON O'NEIL LIMITED | Private company limited by shares | Dissolved |
| O'NEILL ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| O'NEILL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| One-Ing Investment Management Co., Limited | Private company limited by shares | Live |
| ONEINK LIMITED | Private company limited by shares | Live |
| oneinzero Limited | Private company limited by shares | Live |
| ONEIRO COMPANY LIMITED | Private company limited by shares | Live |
| Oneiro HK Limited | Private company limited by shares | Live |
| ONEIROS LIMITED | Private company limited by shares | Live |
| HK OneJ Supply Chain Limited | | Live |
| GERMANY ONEJIABB LIMITED | | Live |
| ONEJOB GROUP LIMITED | Private company limited by shares | Live |
| HK ONEJOINT Information & Technology co., Limited | Private company limited by shares | Live |
| HongKong Onejoy Trading Co., Limited | Private company limited by shares | Live |
| ONEJUST HK LIMITED | | Live |
| One-Just International Co., Limited | Private company limited by shares | Live |
| One.K Limited | Private company limited by shares | Live |
| ONEKAI TRADING COMPANY LIMITED | Private company limited by shares | Live |
| JAPAN ONEKAOONE INTERNATIONAL GROUP CO., LIMITED | Private company limited by shares | Live |
| ONEKEN INDUSTRY LIMITED | Private company limited by shares | Live |
| Onekey Limited | Private company limited by shares | Live |
| ONEKEY LIMITED | | Live |
| ONEKEY.NET COMPANY LIMITED | Private company limited by shares | Dissolved |
| Onekg HK Company Limited | Private company limited by shares | Live |
| Oneklix Technologies Limited | Private company limited by shares | Live |
| ONELAB Limited | Private company limited by shares | Live |
| ONELAM TRADING LIMITED | Private company limited by shares | Live |
| ONELAND INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Onelane Limited | Private company limited by shares | Live |
| OneLawyer Limited | Company limited by guarantee | Live |
| Onelec Company Limited | Private company limited by shares | Live |
| ON-ELEGANT COMPANY LIMITED | Private company limited by shares | Dissolved |
| oneLegkick Production Limited | Private company limited by shares | Live |
| ONELIGHT LED TECH CO., LIMITED | Private company limited by shares | Dissolved |
| ONELIGHT LED TECH CO., LIMITED | Private company limited by shares | Live |
| ONELIGHT TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| GZ Onelight Electronics HK Co., Limited | Private company limited by shares | Live |
| Guangzhou Onelight Co., Limited | Private company limited by shares | Live |
| ONELINK ASIA LIMITED | Private company limited by shares | Dissolved |
| ONELINK CREATION LIMITED | Private company limited by shares | Live |
| ONE-LINK GROUP COMPANY LIMITED | Private company limited by shares | Dissolved |
| Onelink Group Company Limited | Private company limited by shares | Live |
| Onelink Asia Group Limited | Private company limited by shares | Live Commenced dormancy on 25-Aug-2016 |
| ONELINK INVESTMENT LIMITED | Private company limited by shares | Dissolved |