| OEAN TOP (HK) TRADING LIMITED | Private company limited by shares | Live |
| OEAST(HONG KONG) LIMITED | Private company limited by shares | Live |
| OECatch Technology Limited | Private company limited by shares | Live |
| OECD ADVISERS LIMITED | Private company limited by shares | Live |
| Oecigs Technology Co., Limited | Private company limited by shares | Live |
| Oeck Limited | Private company limited by shares | Live |
| OECN TECH LIMITED | Private company limited by shares | Live |
| OECO LIMITED | Private company limited by shares | Dissolved |
| OECONCEPT LIMITED | Private company limited by shares | Live |
| OEDIV LIMITED | Private company limited by shares | Live |
| Oedogroupfx Limited | Private company limited by shares | Live |
| Oeekoo Pro Co., Limited | Private company limited by shares | Live |
| OEERS INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| OEICO SOUTH CHINA COMPANY LIMITED | Private company limited by shares | Dissolved |
| OEICO FAR EAST (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| OEICO PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| OEILLET BEAUTY LIMITED | | Live |
| Oekatan Trade Limited | Private company limited by shares | Live |
| OEKOO INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| HK SHUKE OEKO-TEX LIMITED | Private company limited by shares | Dissolved |
| OELA SOLUTIONS LIMITED | Private company limited by shares | Live |
| Oelaide Trading Limited | Private company limited by shares | Live |
| OELKERS LIMITED | Private company limited by shares | Live |
| O.E.M. LIMITED | Private company limited by shares | Dissolved |
| BONDWELL (OEM) LIMITED | Private company limited by shares | Dissolved |
| JETCROWN & KWANASIA (OEM) SPECIALIST LIMITED | Private company limited by shares | Dissolved |
| OEMAG INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| OEMBUY.COM LIMITED | Private company limited by shares | Dissolved |
| OEMEC INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| OEMER INDUSTRIAL MACHINERY CO., LIMITED | Private company limited by shares | Live |
| OEM-FACTORY NETWORK LIMITED | Private company limited by shares | Live |
| OEMFIBERS CO., LIMITED | Private company limited by shares | Live |
| OEMFIELD LIMITED | Private company limited by shares | Live |
| OEMs Electronics Co Limited | Private company limited by shares | Live |
| OEMSTOCK MANAGEMENT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| OENLEE COMPANY LIMITED | Private company limited by shares | Dissolved |
| OENO ISLANDS INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| OENO TERRAE LIMITED | Private company limited by shares | Live |
| OENO TERRAE (HK) LIMITED | Private company limited by shares | Live |
| Oeno Wine & Spirits Trading Company Limited | Private company limited by shares | Live |
| OENO WINES LIMITED | Private company limited by shares | Dissolved |
| OENOFEEL LIMITED | Private company limited by shares | Live |
| Oenophile Company Limited | Private company limited by shares | Dissolved |
| Wine Oenophiliacs Company Limited | Private company limited by shares | Live |
| OENOTRUS LIMITED | Private company limited by shares | Live |
| Oenso Limited | Private company limited by shares | Live |
| OEPE CO., LIMITED | Private company limited by shares | Live |
| OEPIN TRADING LIMITED | Private company limited by shares | Live |
| O'er Company Limited | Private company limited by shares | Live |
| Oerlikon China Equity Limited | Private company limited by shares | Live |
| OERLIKON PHILLIPS INTERNATIONAL EXHIBITION (HK) CO., LIMITED | Private company limited by shares | Live |
| OERSTED LIMITED | Private company limited by shares | Dissolved |
| OERTON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OERTZEN TRADING COMPANY LIMITED | | Live |
| HONG KONG OERYA INDUSTRY CO., LIMITED | Private company limited by shares | Dissolved |
| Oesco Limited | Private company limited by shares | Live |
| OETA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| OETC GROUP LIMITED | Private company limited by shares | Live |
| OETH TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| OEUF Limited | Private company limited by shares | Live |
| Oewa Limited | | Live |
| OEWG PTY LIMITED | Private company limited by shares | Live |
| OEYSL INTERNATIONAL COSMETICS LIMITED | | Live |