| CATLEY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Catley Trading Limited | Private company limited by shares | Live |
| CATLEYS LIMITED | Private company limited by shares | Live |
| CATLIN LIMITED | Private company limited by shares | Dissolved |
| CATLIN ESTATES LIMITED | Private company limited by shares | Live |
| CatLink Limited | Private company limited by shares | Live |
| CATLOVER LIMITED | Private company limited by shares | Live |
| CATLOWHILL LIMITED | Private company limited by shares | Live |
| Catluck Technology Limited | Private company limited by shares | Live |
| CATMAN LIMITED | Private company limited by shares | Dissolved |
| Catmann Tools International Limited | Private company limited by shares | Live |
| Catmida Limited | Private company limited by shares | Dissolved |
| Catmint Entertainment Limited | Private company limited by shares | Live |
| CATNAP LIMITED | Private company limited by shares | Dissolved |
| Catnap Limited | | Live |
| CATNAP MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| Catnection Holding Limited | Private company limited by shares | Live |
| Catnip Limited | Private company limited by shares | Live |
| The Catnip Limited | | Live |
| Catnology Limited | Private company limited by shares | Live |
| CATO LIMITED | Private company limited by shares | Live |
| CATOCON LIMITED | Private company limited by shares | Dissolved |
| CATON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CATON GROUP LIMITED | Private company limited by shares | Live |
| CATON ADV (HONG KONG) LIMITED | Private company limited by shares | Live |
| Caton Networks Limited | Private company limited by shares | Live |
| Caton Technology (Asia) Limited | Private company limited by shares | Live |
| Catone Company Limited | Private company limited by shares | Dissolved |
| HONG KONG CATONGLOBAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| Catonic Limited | Private company limited by shares | Live |
| CATOO HOLDING LIMITED | | Live |
| Catoonizer Limited | Private company limited by shares | Live |
| Catopia Limited | | Live |
| Catopia Cattery and Trading Company Limited | | Live |
| CATOREX COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATOSA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| CATOSON COMPANY , LIMITED -THE- | Private company limited by shares | Live |
| CATOSPACE LIMITED | Private company limited by shares | Live |
| CAT-PACIFIC LIMITED | Private company limited by shares | Live |
| CATPAPA COMPANY LIMITED | Private company limited by shares | Live |
| CATPI INC LIMITED | Private company limited by shares | Live |
| CATRADE LIMITED | Private company limited by shares | Dissolved |
| Catran International Limited | Private company limited by shares | Live |
| CATREN COMPANY LIMITED | Private company limited by shares | Dissolved |
| Top Catrich (Hong Kong) Co., Limited | Private company limited by shares | Live |
| CATRINA JEWELS LIMITED | Private company limited by shares | Live |
| Catrison Limited | Private company limited by shares | Live |
| CATRO CONSULTING LIMITED | Private company limited by shares | Live |
| CATRON LIMITED | Private company limited by shares | Dissolved |
| CA-TRONIX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CATS Limited | Private company limited by shares | Dissolved |
| 4 Cats Limited | Private company limited by shares | Live |
| CATS LIMITED | Private company limited by shares | Live |
| Cats' Eye Limited | Private company limited by shares | Live |
| Cats Sky Company Limited | | Live |
| 3 CATS LIMITED | | Live |
| Cats' Zone Animals Charity Limited | | Live |
| BLACK CATS LIMITED | Private company limited by shares | Dissolved |
| 3 Cats Bottleshop Limited | | Live |
| CATS & DOGS BUDDIES LIMITED | Private company limited by shares | Live |
| Street Cats Hostel (Charity) Limited | Company limited by guarantee | Live |
| CREATIVE CATS LIMITED | Private company limited by shares | Dissolved |
| DOGS AND CATS LIMITED | Private company limited by shares | Dissolved |
| DOGS N' CATS LIMITED | Private company limited by shares | Dissolved |
| 2 Dogs 3 Cats Limited | Private company limited by shares | Live |
| EDEN OF CATS LIMITED | 擔保有限公司 | Live |
| CATS ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| CATS FIRST COMPANY LIMITED | | Live |
| Happy Dog and Cats Limited | Private company limited by shares | Live |
| HAPPY CATS LIMITED | Private company limited by shares | Live |
| Hill Dogs & Cats Association Company Limited | Company limited by guarantee | Live |
| Hyper Cats Limited | | Live |
| CATS Investment Limited | Private company limited by shares | Live |
| CATS LANGUAGE LEARNING CENTRE LIMITED | Private company limited by shares | Live |
| WE LOVE CATS LIMITED | Private company limited by shares | Live |
| Love Cats Everyday HK Limited | | Live |
| CAT'S PARADISE LIMITED | Private company limited by shares | Live |
| 3 CATS PUBLISHING LIMITED | Private company limited by shares | Dissolved |
| Robotics Cats Limited | Private company limited by shares | Live |
| Shiny Cats Limited | | Live |
| CATS STAR LIMITED | Company limited by guarantee | Live |
| STREET CATS HOSTEL AND PET PRODUCTS LIMITED | Private company limited by shares | Live Ceased dormancy on 10-Sep-2018 |
| 3 Cats Studio Limited | Private company limited by shares | Dissolved |
| THERE ARE CATS AND DOGS PETS SUPPLIES LIMITED | | Live |
| UNITED NATIONS OF CATS AND DOGS LIMITED | Private company limited by shares | Live |
| Cats Yoga and Fitness Limited | Private company limited by shares | Live |
| U. S. CATSCAN LIMITED | Private company limited by shares | Dissolved |
| CATSFORFREE (HK) CO., LIMITED | | Live |
| CATSHING TRADING LIMITED | Private company limited by shares | Dissolved |
| CATSKILL TRADING LIMITED | Private company limited by shares | Dissolved |
| CATSLAND LIMITED | Private company limited by shares | Dissolved |
| Catslife Limited | | Live |
| CATSON LIMITED | Private company limited by shares | Live |
| Catsplanet Company Limited | Private company limited by shares | Live |
| CATSPY ELECTRONICS CO. LIMITED | Private company limited by shares | Dissolved |
| Catstal Company Limited | | Live |
| CATSTECH SYSTEM LIMITED | Private company limited by shares | Dissolved |
| CATSTONE LIMITED | Private company limited by shares | Dissolved |
| CAT-STREET.COM LIMITED | Private company limited by shares | Dissolved |
| LBG CATSUIT COMPANY LIMITED | Private company limited by shares | Dissolved |