| ROYAL OVERCOATS LIMITED | Private company limited by shares | Dissolved |
| OVERCOME COMPANY LIMITED | Private company limited by shares | Dissolved |
| OVERCOME LIMITED | Private company limited by shares | Dissolved |
| Overcome the Limited | Private company limited by shares | Live |
| OVERCOME CREATIVE COMPANY LIMITED | Private company limited by shares | Live |
| OVERCON LIMITED | Private company limited by shares | Dissolved |
| OVERCOOK COMPANY LIMITED | Private company limited by shares | Live |
| OverCook Group Limited | | Live |
| Overcooking Limited | Private company limited by shares | Live |
| OVERCOURT COMPANY LIMITED | Private company limited by shares | Dissolved |
| OVERDALE LIMITED | Private company limited by shares | Live |
| OVERDID GLOBAL LIMITED | | Live |
| OVERDISTRIBUTION LIMITED | Private company limited by shares | Live |
| Overdose Limited | Private company limited by shares | Live |
| OVERDRAGON LIMITED | Private company limited by shares | Live |
| OVERDRIVE LIMITED | Private company limited by shares | Dissolved |
| OVEREST HK LIMITED | Private company limited by shares | Live |
| OVERETTE LIMITED | Private company limited by shares | Dissolved |
| OVERFIELD LIMITED | Private company limited by shares | Dissolved |
| Overflight Shipping Management Limited | Private company limited by shares | Live |
| OVERFLOW COMPANY LIMITED | Private company limited by shares | Dissolved |
| OVERFLOW Co. Limited | Private company limited by shares | Live |
| HK Overflow Limited | | Live |
| BEAUTY OVERFLOW LIMITED | Private company limited by shares | Live |
| OVERFLOW ENGINEERING LIMITED | Private company limited by shares | Live |
| EVER OVERFLOW LIMITED | | Live |
| EXPAND OVERFLOW LIMITED | | Live |
| FULL OVERFLOW LIMITED | | Live |
| OVERFLOW HOPE LIMITED | | Live |
| JABEZ (OVERFLOW) LIMITED | Private company limited by shares | Live |
| OVERFLOW PROMOTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| OVERFLOW VIEW LIMITED | Private company limited by shares | Live |
| OVERFLOWING BEAUTY LIMITED | Private company limited by shares | Live |
| Fragrance Overflowing Jiuzhou Company Limited | | Live |
| Overflowing Mercies Company Limited | Private company limited by shares | Live |
| OVERFLY ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Overflying Ray Limited | Private company limited by shares | Live |
| OVERGAARD LIMITED | Private company limited by shares | Live |
| OVERGAIN LIMITED | Private company limited by shares | Dissolved |
| OVERGRAND LIMITED | Private company limited by shares | Dissolved |
| OVERGRAND LIMITED | Private company limited by shares | Dissolved |
| OVERGREAT INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| OVERGREAT TOYS & NOVELTY LIMITED | Private company limited by shares | Dissolved |
| OVERHEAD INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OVERHERE LIMITED | | Live |
| OVERHILL LIMITED | Private company limited by shares | Dissolved |
| OVERHUGE COMPANY LIMITED | Private company limited by shares | Dissolved |
| OVERICH LIMITED | Private company limited by shares | Dissolved |
| OVERICH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Overimagined Limited | Private company limited by shares | Live |
| OVERJOY INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| OVERKIZ ASIA CO. LIMITED | Private company limited by shares | Live |
| OVERLAB LIMITED | Private company limited by shares | Live |
| OVERLAKE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Overlake Investment Limited | Private company limited by shares | Live |
| OVERLAND LIMITED | Private company limited by shares | Dissolved |
| OVERLAND LIMITED | Private company limited by shares | Live |
| Overland Asia Limited | | Live |
| Overland Ceramics Co., Limited | Private company limited by shares | Dissolved |
| Overland Construction Limited | Private company limited by shares | Live |
| OVERLAND CONSULTING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Overland East Asia Limited | Private company limited by shares | Live |
| Overland Education (HK) Limited | Private company limited by shares | Live |
| Overland Flight Limited | Private company limited by shares | Live |
| OVERLAND (HK) LIMITED | Private company limited by shares | Live |
| Overland Pharmaceuticals (HK) Limited | Private company limited by shares | Live |
| OVERLAND HOLDING LIMITED | Private company limited by shares | Dissolved |
| OVERLAND INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Overland Investment Limited | Private company limited by shares | Live |
| OVERLAND KNIGHTS LIMITED | Private company limited by shares | Dissolved |
| Overland International Mining & Resource Limited | Private company limited by shares | Dissolved |
| Overland Technology Limited | Private company limited by shares | Live |
| OVERLAND TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Overland Trading Limited | Private company limited by shares | Live |
| Overland Travel Limited | Private company limited by shares | Dissolved |
| OVERLANDER COMPANY LIMITED | Private company limited by shares | Live |
| FAR EAST OVERLANDS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| GOLD OVERLAP LIMITED | Private company limited by shares | Live |
| OVERLOAD LIMITED | Private company limited by shares | Dissolved |
| DRAKE OVERLOAD LIMITED | Private company limited by shares | Live |
| OVERLONG LIMITED | Private company limited by shares | Dissolved |
| OVERLOOK LIMITED | Private company limited by shares | Live |
| OVERLOOK INVESTMENTS LIMITED | Private company limited by shares | Live |
| OVERLORD LIMITED | Private company limited by shares | Dissolved |
| UNITED STATES OVERLORD INTERNATIONAL PETROLEUM GROUP HOLDINGS CO., LIMITED -THE- | Private company limited by shares | Live |
| USA OVERLORD INTERNATIONAL PETROLEUM CHEMICAL INDUSTRY GROUP CO., LIMITED | Private company limited by shares | Live |
| HK MEIFU OVERLORD PETROLEUM GROUP CHEMICAL INDUSTRY LIMITED | Private company limited by shares | Live |
| OVERLORD INT'L CHEMICAL INDUSTRY GROUP (ZHONGSHAN) SHUSEN LIMITED | Private company limited by shares | Dissolved |
| KOREA OVERLORD HORSE DRESS LIMITED | Private company limited by shares | Dissolved |
| OVERLORD INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| OVERLORD LEADER TRADING LIMITED | | Live |
| OVERLY COMPANY LIMITED | Private company limited by shares | Dissolved |
| OVERMARS CO., LIMITED | Private company limited by shares | Live |
| OVERMATCH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| OVERMATCH MACHINERY (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| Hongkong Overmount International Trade Co., Limited | | Live |
| HONG KONG OVERNICE CLOTHING HOLDING LIMITED | Private company limited by shares | Dissolved |
| OVER-NICE INDUSTRIAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Get Rich Overnight Limited | | Live |
| OVERNIGHT IT SOLUTION LIMITED | Private company limited by shares | Live |