| OBERTEX LIMITED | Private company limited by shares | Dissolved |
| OBERTON PRO LIMITED | | Live |
| OBERTON INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| OBERWALE TRADE LIMITED | | Live |
| Oberweis Asset Management (Asia) Limited | Private company limited by shares | Live |
| Obese Plein Limited | Private company limited by shares | Live |
| HONG KONG ASSOCIATION FOR THE STUDY OF OBESITY LIMITED | Company limited by guarantee | Live |
| OBEST CO., LIMITED | Private company limited by shares | Live |
| OBEST ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| OBEST ELECTRONICS HONG KONG LIMITED | Private company limited by shares | Live |
| Obest Green Energy Limited | Private company limited by shares | Live |
| OBEST (GERMANY) ELECTRIC GROUP LIMITED | Private company limited by shares | Dissolved |
| OBEST TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| Hong Kong O-Best Investment Co., Limited | Private company limited by shares | Live |
| Obest Industry (Hongkong) Co., Limited | Private company limited by shares | Live |
| O-BEST INTERNATIONAL (US) CO., LIMITED | Private company limited by shares | Dissolved |
| Obestec Industrial Co., Limited | Private company limited by shares | Live |
| QINGDAO OBETA TRADE CO., LIMITED | Private company limited by shares | Live |
| Obewone Limited | Private company limited by shares | Live |
| OBEY PACIFIC COMPANY LIMITED | Private company limited by shares | Live |
| OBFC LIMITED | Private company limited by shares | Live |
| OBGIC LIMITED | Private company limited by shares | Live |
| HONGKONG OBHC TECHNOLOGY LIMITED | | Live |
| OBIA LIMITED | Private company limited by shares | Live |
| OBIA CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| OBIA INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| OBIA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| OBIANTA LIMITED | Private company limited by shares | Dissolved |
| OBIC CO., LIMITED | | Live |
| Obidos Solutions Limited | Private company limited by shares | Live |
| Obien Group (Hong Kong) Limited | Private company limited by shares | Live |
| OBIER E-FASHION LIMITED | Private company limited by shares | Live |
| OBIGO LIMITED | Private company limited by shares | Dissolved |
| OBILE TRADING CO., LIMITED | | Live |
| Obishi Technology Limited | Private company limited by shares | Live |
| Obiwan Limited | | Live |
| OBIWAN TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Obi-WanHK Limited | | Live |
| OBIYA SHOES LIMITED | Private company limited by shares | Live |
| OBJECT LIMITED | Private company limited by shares | Live |
| RED OBJECT LIMITED | | Live |
| LOVE AND OBJECT LIMITED | Private company limited by shares | Live |
| 3D OBJECT MARKET LIMITED | Private company limited by shares | Live |
| Object Retail Co. Limited | Private company limited by shares | Dissolved |
| 36 OBJECT SOLUTION LIMITED | | Live |
| STRATEGY OBJECT LIMITED | Private company limited by shares | Dissolved |
| OBJECT SYSTEMS COMPANY LIMITED | Private company limited by shares | Dissolved |
| YELLOW OBJECT LIMITED | Private company limited by shares | Live |
| Objectflor Limited | | Live |
| by Objection Company Limited | Private company limited by shares | Live |
| OBJECTIVE CPA LIMITED | Private company limited by shares | Dissolved |
| Objective 38 Limited | Private company limited by shares | Dissolved |
| Objective Co. Limited | Private company limited by shares | Live |
| Objective Administration Company Limited | Private company limited by shares | Dissolved |
| OBJECTIVE DESIGN CO., LIMITED | Private company limited by shares | Dissolved |
| NEW OBJECTIVE TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| OBJECTIVE CONCEPTS LIMITED | Private company limited by shares | Dissolved |
| MINWA OBJECTIVE CONCEPT TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| COMPANY OBJECTIVE DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| GREAT OBJECTIVE LIMITED | Private company limited by shares | Dissolved |
| OBJECTIVE HOLDINGS LIMITED | Private company limited by shares | Live |
| OBJECTS & OBJECTIVE COMPANY LIMITED | Private company limited by shares | Live |
| OBJECTIVE SOLUTIONS LIMITED | Private company limited by shares | Live |
| OBJECTIVE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Objective Underwriting Limited | Private company limited by shares | Live |
| OBJECTIVES LIMITED | | Live |
| GOOD OBJECTIVES COMPANY LIMITED | Private company limited by shares | Dissolved |
| OBJECTIVES PROPERTY LIMITED | Private company limited by shares | Dissolved |
| Objectivists Limited | Private company limited by shares | Live |
| Accent Objects Limited | Private company limited by shares | Live |
| OBJECTS ASIA LIMITED | Private company limited by shares | Dissolved |
| OBJECTS BY ASIA LIMITED | Private company limited by shares | Dissolved |
| ART OBJECTS ASIAN LIMITED | Private company limited by shares | Dissolved |
| CHINA OBJECTS LIMITED | Private company limited by shares | Dissolved |
| BUSINESS OBJECTS CHINA LIMITED | Private company limited by shares | Dissolved |
| BUSINESS OBJECTS GREATER CHINA LIMITED | Private company limited by shares | Dissolved |
| INFLUX OBJECTS LIMITED | Private company limited by shares | Dissolved |
| Ka Kee's Gallery of Objects Limited | Private company limited by shares | Live |
| ENTERPRISE LOGICAL OBJECTS LIMITED | Private company limited by shares | Dissolved |
| People and Objects Limited | Private company limited by shares | Live |
| OBJECTS CLIP PUBLICATIONS LIMITED | Private company limited by shares | Live |
| OBJECTT OPTIK COMPANY LIMITED | Private company limited by shares | Live |
| OBJEKT ASIA PUBLISHING LIMITED | Private company limited by shares | Live |
| OBJET D'ART COMPANY LIMITED | Private company limited by shares | Dissolved |
| OBJET D'ART INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Objx by aluminium Limited | Private company limited by shares | Live |
| OBLAST, LIMITED | Private company limited by shares | Live |
| WELL OBLIGED LIMITED | Private company limited by shares | Dissolved |
| W OBLIGER LIMITED | Private company limited by shares | Dissolved |
| ObliqDesign Limited | Private company limited by shares | Live |
| OBLIQUE COMPANY LIMITED | Private company limited by shares | Dissolved |
| OBLITERATOR INDUSTRIES LIMITED | Private company limited by shares | Live |
| Obliviate Co., Limited | Private company limited by shares | Live |
| Obliviate Technology Limited | | Live |
| Oblivion Limited | Private company limited by shares | Dissolved |
| Oblivion Limited | Private company limited by shares | Live |
| OBLIVION ENTERTAINMENT GROUP LIMITED | Private company limited by shares | Live |
| OblonDATA.IO Limited | Private company limited by shares | Live |
| OBLONG LIMITED | Private company limited by shares | Dissolved |
| OBLONG LIMITED | Private company limited by shares | Live Commenced dormancy on 16-Mar-2011 |