| FOUNTAIN OF TOYS LIMITED | Private company limited by shares | Live |
| Fountain Toys Limited | Private company limited by shares | Live |
| VAST FOUNTAIN LIMITED | Private company limited by shares | Dissolved |
| FOUNTAIN VIEW LIMITED | Private company limited by shares | Dissolved |
| Fountain View Limited | Private company limited by shares | Live |
| FOUNTAIN VILLA LIMITED | Private company limited by shares | Dissolved |
| WEALTH FOUNTAIN LIMITED | Private company limited by shares | Dissolved |
| FOUNTAIN WEALTH LIMITED | Private company limited by shares | Dissolved |
| FOUNTAIN WEALTH LIMITED | Private company limited by shares | Live |
| FOUNTAIN WEALTH ASIA LIMITED | Private company limited by shares | Dissolved |
| WEALTH FOUNTAIN CAPITAL LIMITED | Private company limited by shares | Live |
| FOUNTAIN WEALTH ENTERPRISES LIMITED | Private company limited by shares | Live |
| WEALTHY FOUNTAIN LIMITED | Private company limited by shares | Live |
| WISDOM FOUNTAIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| Wishing Fountain Limited | Private company limited by shares | Live |
| Yixing Sea Fountain Equipment Limited | Private company limited by shares | Live |
| Fountainbridge Advisor Limited | Private company limited by shares | Live |
| Fountaine International Trading Co., Limited | Private company limited by shares | Live |
| FOUNTAINERS COMPANY LIMITED | Private company limited by shares | Dissolved |
| FOUNTAINFIELD INVESTMENT LIMITED | Private company limited by shares | Live |
| FOUNTAINHEAD LIMITED | Private company limited by shares | Dissolved |
| FOUNTAINHEAD LIMITED | Private company limited by shares | Dissolved |
| FOUNTAINHEAD LIMITED | Private company limited by shares | Dissolved |
| FOUNTAINHEAD COMPANY LIMITED | Private company limited by shares | Live |
| The Fountainhead Capital Limited | | Live |
| Ocean fountainhead Limited | | Live |
| Team Fountainhead Limited | | Live |
| FOUNTAINLAND LIMITED | Private company limited by shares | Live Commenced dormancy on 01-Jun-2016 |
| Fountainmed Limited | Private company limited by shares | Live |
| MAN WAH FOUNTAINPENS AND LIGHTERS COMPANY LIMITED | Private company limited by shares | Dissolved |
| CLEARSPRING FOUNTAINS LIMITED | Private company limited by shares | Live |
| FOUNTAINSIDE LIMITED | Private company limited by shares | Live |
| FOUNTAINVEST HK LIMITED | Private company limited by shares | Live |
| FountainVest Capital Limited | | Live |
| FOUNTOM GROUP LIMITED | Private company limited by shares | Live |
| Founton Technology Co., Limited | | Live |
| FOUNTON CORPORATION (HK) LIMITED | Private company limited by shares | Dissolved |
| Fountpoint Limited | Private company limited by shares | Live |
| FOUNTS ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| L. T. FOUR LIMITED | Private company limited by shares | Dissolved |
| FOUR LIMITED | Private company limited by shares | Dissolved |
| FOUR IN ONE LIMITED | Private company limited by shares | Live |
| RE FOUR LIMITED | Private company limited by shares | Live |
| Big Four Company Limited | Private company limited by shares | Dissolved |
| FOUR C's LIMITED | Private company limited by shares | Live |
| You Four Limited | Private company limited by shares | Live |
| FOUR ESS LIMITED | Private company limited by shares | Dissolved |
| CG Four Fun Limited | Private company limited by shares | Live |
| M FOUR LIMITED | Private company limited by shares | Live |
| CVF FOUR Limited | Private company limited by shares | Live |
| FOUR C Company Limited | Private company limited by shares | Live |
| RE III FOUR LIMITED | Private company limited by shares | Live |
| BIG FOUR COMPANY LIMITED | Private company limited by shares | Live |
| FOUR LIMITED | Private company limited by shares | Live |
| BM Four Limited | Private company limited by shares | Live |
| QC Four Limited | Private company limited by shares | Live |
| T Four HK Limited | Private company limited by shares | Live |
| CMF Four Limited | Private company limited by shares | Live |
| TAT FOUR CHI LIMITED | Private company limited by shares | Live |
| TH Four Limited | Private company limited by shares | Live |
| Four O Six Limited | Private company limited by shares | Live |
| JC FOUR COMPANY LIMITED | Private company limited by shares | Live |
| RE IV FOUR LIMITED | Private company limited by shares | Live |
| Four X Four Limited | Private company limited by shares | Live |
| FOUR IN ONE COMPANY LIMITED | Private company limited by shares | Live |
| FTL FOUR LIMITED | Private company limited by shares | Live |
| HOI FOUR LIMITED | Private company limited by shares | Live |
| KT Four Limited | Private company limited by shares | Live |
| YY FOUR LIMITED | Private company limited by shares | Live |
| The Big Big Four Limited | | Live |
| FAI FOUR LIMITED | | Live |
| Four 22 Limited | | Live |
| FOUR E LIMITED | | Live |
| Four Us Limited | | Live |
| CHINA FOUR PURPOSES ACADEMY CO., LIMITED | Private company limited by shares | Live |
| FOUR ACES LIMITED | Private company limited by shares | Live |
| Four Aces Advisors Limited | Private company limited by shares | Live |
| FOUR ACES ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Four Aces Trading Limited | Private company limited by shares | Live |
| FOUR ACTIONS LIMITED | | Live |
| Four Acts Co., Limited | Private company limited by shares | Live |
| FOUR ALPHA INDUSTRY LIMITED | Private company limited by shares | Live |
| Four Armania Shipping Limited | Private company limited by shares | Live |
| Four Arrows Limited | Private company limited by shares | Live |
| FOUR IV ASIA LIMITED | Private company limited by shares | Live |
| FOUR A'S CAPITAL ASIA LIMITED | Private company limited by shares | Live |
| FOUR ASIA TRADE LIMITED | Private company limited by shares | Dissolved |
| SET WIN ASSET HOLDING (FOUR) LIMITED | Private company limited by shares | Live |
| FO-UR ASSETS HK INC, LIMITED | Private company limited by shares | Dissolved |
| FOUR STAR ASSOCIATES LIMITED | Private company limited by shares | Live |
| FOUR VILLAGE ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| FOUR WHEELS AUTO WORKS COMPANY LIMITED | Private company limited by shares | Live |
| FOUR BEAUTIES LIMITED | Private company limited by shares | Dissolved |
| FOUR BEAUTY LIMITED | Private company limited by shares | Dissolved |
| BEIJING UNIT FOUR TECHNOLOGICAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BEIJING FOUR SEASONS MUGE INDUSTRY LIMITED | Private company limited by shares | Live |
| BEST FOUR OCEAN LIMITED | Private company limited by shares | Live |
| Betterverse Four Limited | | Live |
| FOUR BILLION FIRE ENGINEERING LIMITED | Private company limited by shares | Live |
| Big Four Blessings Group Limited | Private company limited by shares | Live |