| OHMYBEE LIMITED | Private company limited by shares | Live |
| Ohmybox.com Limited | Private company limited by shares | Live |
| OhMyColour Limited | Private company limited by shares | Live |
| OhMyCourse Limited | | Live |
| OhMyGod Digital Entertainment Co., Limited | Private company limited by shares | Live |
| OHMYGUIDE.COM LIMITED | Private company limited by shares | Dissolved |
| OhMyHelp Limited | Private company limited by shares | Live |
| OHMYHONEY LIMITED | Private company limited by shares | Live |
| OHMYKIDS LIMITED | Private company limited by shares | Live |
| Ohmylk Limited | | Live |
| OhMyMate Limited | | Live |
| Ohmynail Limited | Private company limited by shares | Live |
| OHMYOGA COMPANY LIMITED | Private company limited by shares | Live |
| OHMYPOON DESIGN LIMITED | Private company limited by shares | Live |
| OHNIILUXE Limited | | Live |
| OHNO SUSHI COMPANY LIMITED | Private company limited by shares | Dissolved |
| Ohon Co., Limited | Private company limited by shares | Live |
| OHONG FOUNDATION ASIA COMPANY LIMITED | Private company limited by shares | Live |
| Ohong Industrial Limited | Private company limited by shares | Live |
| OHOOH LIMITED | Private company limited by shares | Live |
| OHOOHO COMPANY LIMITED | Private company limited by shares | Live |
| Ohope Investments Limited | Private company limited by shares | Live |
| OH-OPENHORIZON COMPANY LIMITED | Private company limited by shares | Live |
| OHPHONE ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| OHPO Limited | | Live |
| OHRA ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| JEFFREY OHRENSTEIN (H.K.) LIMITED | Private company limited by shares | Dissolved |
| OHRID INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG OHSHIMA PRECISION INDUSTRY COMPANY LIMITED | Private company limited by shares | Dissolved |
| OHSIXO LIMITED | Private company limited by shares | Live |
| DENMARK OHSJUZZ AUDIO INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| Oh-So-U Limited | Private company limited by shares | Live |
| Ohsun Development Co., Limited | Private company limited by shares | Live |
| Ohsure-Elite Education Limited | Private company limited by shares | Live |
| OHTE INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| OHTEC (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| RESTAURANT OHTORIYA LIMITED | Private company limited by shares | Dissolved |
| OHTSUKI SEIKO (H.K.) CO., LIMITED | Private company limited by shares | Live |
| OHTSUKI PRECISION (HONG KONG) CO., LIMITED | Private company limited by shares | Dissolved |
| OHUAJUN CO., LIMITED | Private company limited by shares | Live |
| OHUAJUN HOLDING CO., LIMITED | Private company limited by shares | Live |
| OHUAJUN INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| OHUAJUN INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| OHUAJUN GROUP CO., LIMITED | Private company limited by shares | Live |
| OHUAJUN INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| Ohuhu Limited | Private company limited by shares | Live |
| OHUMM ASIA LIMITED | Private company limited by shares | Live |
| OHUSB TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| OHWA INVESTMENT HOLDING LIMITED | Private company limited by shares | Dissolved |
| OHWADA LIMITED | Private company limited by shares | Live |
| OHWAN CABLE CAR LIMITED | Private company limited by shares | Dissolved |
| OHWAN TRADING (H.K.) LIMITED | Private company limited by shares | Dissolved |
| OhWanWaan Company Limited | Private company limited by shares | Live |
| OHWIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| Ohwow Limited | Private company limited by shares | Live |
| YU OHYA AND COMPANY LIMITED | Private company limited by shares | Dissolved |
| OH-YA LIMITED | Private company limited by shares | Live |
| HK OHYEAH CO., LIMITED | Private company limited by shares | Dissolved |
| OhYeah Technology Limited | Private company limited by shares | Dissolved |
| Ohyeah Trading Limited | Private company limited by shares | Live |
| OHYES TRADING LIMITED | Private company limited by shares | Live |
| OHZORA PAPER INDUSTRY CO. LIMITED | Private company limited by shares | Live |