| ONE AND ONLY TRADE CO., LIMITED | Private company limited by shares | Live |
| MEMBERS ONLY COLLECTIONS LIMITED | Private company limited by shares | Dissolved |
| ONLY ONE COMMERCIAL ENGINEERING LIMITED | | Live |
| CONCEPTS ONLY LIMITED | Private company limited by shares | Dissolved |
| One & Only Connection Service Company Limited | Private company limited by shares | Live |
| ONLY DATA COMPANY LIMITED | Private company limited by shares | Dissolved |
| ONLY YOU DESIGN LIMITED | Private company limited by shares | Dissolved |
| Only With You Diamond Limited | Private company limited by shares | Live |
| Only One Dollar Limited | Private company limited by shares | Live |
| Drinks Only Limited | Private company limited by shares | Live |
| ONLY EDUCATION CO., LIMITED | Private company limited by shares | Live |
| HK EIFFEL (ONLY) SKIN CARE LIMITED | Private company limited by shares | Live |
| Only Electronic Company Limited | Private company limited by shares | Live |
| ONLY ENGINEERING LIMITED | | Live |
| ONLY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ONLY AP Enterprises Limited | Private company limited by shares | Live |
| FAMILY ONLY LIMITED | | Live |
| ONLY ONE FASHION CO., LIMITED | Private company limited by shares | Live |
| Only Fashion Co., Limited | Private company limited by shares | Live |
| FIRST AID ONLY LIMITED | Private company limited by shares | Dissolved |
| ONE AND ONLY FOODS COMPANY LIMITED -THE- | Private company limited by shares | Live |
| Only Fountainhead Limited | Private company limited by shares | Live |
| FRIENDS ONLY LIMITED | | Live |
| ONLY FRIENDS LIMITED | | Live |
| ONLY GIANT OF HK LIMITED -THE- | Private company limited by shares | Live |
| ONLY GOLD LIMITED | Private company limited by shares | Dissolved |
| Good Chi Only Limited | | Live |
| Good Girls Only Limited | Private company limited by shares | Live |
| Only Plant a Grass Every Day Limited | Private company limited by shares | Live |
| NOT ONLY GROUP LIMITED | Private company limited by shares | Dissolved |
| ONLY GROUP LIMITED | Private company limited by shares | Live |
| ONE AND ONLY GROUP LIMITED | Private company limited by shares | Live |
| Only One Catering Group Limited | Private company limited by shares | Live |
| GUANGDONG ONLY LIMITED | Private company limited by shares | Dissolved |
| ONLY YOU HEALTHCARE LIMITED | | Live |
| ONLY (HOLDING) LIMITED | Private company limited by shares | Live |
| ONLY BEST INDUSTRIAL LIMITED | Private company limited by shares | Live |
| ONLY ONE INVESTMENT LIMITED | Private company limited by shares | Live |
| By Invite Only Limited | Private company limited by shares | Live |
| One and Only Jewelry Limited | | Live |
| KIDS ONLY, LIMITED | Private company limited by shares | Live |
| ONLY SPINNING (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| FRENCH LIMESTONE ONLY LIMITED | Private company limited by shares | Live |
| Only the Sky is the Limit Limited | Private company limited by shares | Live |
| You Only Live Once Limited | Private company limited by shares | Live |
| BUY ONLY LUXURY LIMITED | Private company limited by shares | Live |
| MAGIC ONLY INCORPORATED LIMITED | Private company limited by shares | Dissolved |
| NOT ONLY CATERING MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| Only Mine Limited | Private company limited by shares | Live |
| Only Smart Network Company Limited | | Live |
| ONLY NETWORKS LIMITED | Private company limited by shares | Live |
| One And Only Online Company Limited | Private company limited by shares | Live |
| Only Organic Limited | Private company limited by shares | Dissolved |
| Only Original Perfumes Limited | Private company limited by shares | Live |
| ONLY PLACE COMPANY LIMITED -THE- | Private company limited by shares | Live Commenced dormancy on 27-Jan-2014 |
| NOT ONLY POWDER LIMITED | | Live |
| ONLY YOU GIFT & PREMIUM LIMITED | Private company limited by shares | Dissolved |
| PRETTY ONLY LIMITED | Private company limited by shares | Live |
| Only One Advertising Production Limited | | Live |
| ONLY ONE FILM PRODUCTION LIMITED | Private company limited by shares | Live |
| Best Products Only Limited | Private company limited by shares | Live |
| ONLY ONE PROPERTY LIMITED | Private company limited by shares | Live |
| ONLY ONE RESTAURANT COMPANY LIMITED | | Live |
| RICH ONLY LIMITED | Private company limited by shares | Dissolved |
| ONLY RISING INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ONLY SPRINT LIMITED | Private company limited by shares | Dissolved |
| STAFF ONLY LIMITED | | Live |
| ONLY STAGE LIMITED -THE- | Company limited by guarantee | Live |
| Tat2 Only Studio Limited | | Live |
| ONLY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ONLY AND 1 TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ONLY TIME LIMITED | Private company limited by shares | Live |
| Times Only Co Limited | | Live |
| Only Trade Limited | Private company limited by shares | Live |
| HK YOU ONLY TRADING LIMITED | Private company limited by shares | Live |
| Only You HK Trading Limited | Private company limited by shares | Live |
| Only Best Trading Limited | Private company limited by shares | Live |
| Only Beauty Cosmetic Trading Limited | Private company limited by shares | Live |
| ONLY TREASURE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Only Treasure Excellent Limited | | Live |
| ONLY ONE TREATMENT CENTER LIMITED | Private company limited by shares | Live |
| ONLY UNIQUE CO., LIMITED | Private company limited by shares | Live |
| ONLY VIEW COMPANY LIMITED | Private company limited by shares | Dissolved |
| Only Vision Limited | Private company limited by shares | Live |
| Only Want Limited | Private company limited by shares | Live |
| WEEKDAYS ONLY LIMITED | Private company limited by shares | Live |
| WHEELBARROWS ONLY SOURCING LIMITED | Private company limited by shares | Live |
| Not Only Wine Limited | | Live |
| ONLY WISDOM LIMITED | Private company limited by shares | Live |
| ONLY WOOD LIMITED -THE- | Private company limited by shares | Live |
| Only Words Limited | Private company limited by shares | Dissolved |
| Only1 Limited | Private company limited by shares | Live |
| OnlyADS Limited | | Live |
| Shenzhen Onlyaquar Co., Limited | Private company limited by shares | Live |
| ONLYBEST JEWELRY&GIFT CO., LIMITED | Private company limited by shares | Live |
| HK ZHUZHOU ONLY-BEST CO., LIMITED | Private company limited by shares | Live |
| YUEQING ONLYBO INSTRUMENTS CO., LIMITED | Private company limited by shares | Live |
| FRANCE ONLYBRA DRESS FINERY GROUP LIMITED | Private company limited by shares | Dissolved |
| ONLYCARE MEDICAL COMPANY LIMITED | Private company limited by shares | Live |
| ONLYD CORP. LIMITED | Private company limited by shares | Live |