| Midland Cybernet Four Limited | Private company limited by shares | Live |
| DADI ASSETS FOUR LIMITED | Private company limited by shares | Live |
| FOUR FOURTH DESIGN & CONSULTANCY LIMITED | Private company limited by shares | Live |
| FOUR BENEFIT TRADING DEVELOP LIMITED | | Live |
| FOUR PUI TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| FOUR YUN TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| FOUR RICH TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| YING FOUR TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| FOUR ONE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Four H Development Co Limited | Private company limited by shares | Live |
| Big Four Development Limited | Private company limited by shares | Dissolved |
| Big Four Men Development Limited | Private company limited by shares | Live |
| Four Development Limited | Private company limited by shares | Live |
| A FOUR DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| FOUR DIMENSION FURNITURE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| HABITAT FOUR DEVELOPMENT LIMITED | | Live |
| FOUR LINE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Four Treasures Group Development Co., Limited | Private company limited by shares | Live |
| FOUR WOOD DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Four A Diam & Jewelry Limited | Private company limited by shares | Live |
| Big Four Digital Limited | Private company limited by shares | Live |
| FOUR DIMENSIONAL CULTURE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| FOUR DIMENSIONAL SPACE (HK) LIMITED | Private company limited by shares | Live |
| Four Dimensions Company Limited | Private company limited by shares | Dissolved |
| Four Dimensions Enterprises Limited | Private company limited by shares | Live |
| Four Direction Global Limited | Private company limited by shares | Live |
| FOUR DIRECTIONS LIMITED | Private company limited by shares | Live |
| Four Directions Group Development Co., Limited | | Live |
| FOUR DIRECTIONS ECOMMERCE LIMITED | Private company limited by shares | Live |
| FOUR DIRECTIONS HOLDINGS LIMITED | Private company limited by shares | Live |
| FOUR DIRECTIONS EQUITY INVESTMENT FUND LIMITED | Private company limited by shares | Live |
| Four Directions Tech Limited | | Live |
| Hong Kong Four Divisions International Limited | | Live |
| DOMAIN FOUR ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Four Double Happiness Investment Limited | Private company limited by shares | Live |
| FOUR DRAGONS LIMITED | Private company limited by shares | Dissolved |
| FOUR DRAGONS COMPANY LIMITED | Private company limited by shares | Live |
| Duddell Four Limited | Private company limited by shares | Live |
| EAGLE FOUR LIMITED | Private company limited by shares | Dissolved |
| FOUR S ECOPOWER LIMITED | | Live |
| THREE FOUR FOUR EIGHT LIMITED | Private company limited by shares | Live |
| FOUR EIGHTEEN LIMITED | Private company limited by shares | Dissolved |
| ELANNE FOUR LIMITED | Private company limited by shares | Live |
| BIG FOUR ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| Four Channel Electronics Limited | Private company limited by shares | Dissolved |
| FOUR ELEMENTS LIMITED | Private company limited by shares | Dissolved |
| Four Elements HK Limited | Private company limited by shares | Live |
| Clean Energy Four (Hong Kong) Limited | | Live |
| Four Po Engineering Limited | Private company limited by shares | Live |
| Big Four Engineering Company Limited | Private company limited by shares | Live |
| Four Sea Engineering Builders Limited | Private company limited by shares | Live |
| FOUR DIMENSIONS DESIGN AND ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Four Dimension Engineering Limited | | Live |
| FOUR NGAI ENGINEERING LIMITED | Private company limited by shares | Live |
| ZGAT FOUR AREA ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| FOUR UP ENTERPRISES LIMITED | Private company limited by shares | Live |
| FOUR WIN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Sea Four Enterprises Limited | Private company limited by shares | Dissolved |
| Four Terra Enterprises Limited | Private company limited by shares | Dissolved |
| Four Essentials Limited | | Live |
| EuniceLT Four Limited | Private company limited by shares | Live |
| PLUS FOUR EXPORT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| Four Eyes Limited | Private company limited by shares | Live |
| FOUR EYES PRODUCTION LIMITED | Private company limited by shares | Live |
| Four Eyes Research Limited | | Live |
| FOUR FACED BUDDHA MANAGEMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Big Four Facilities Management (HK) Limited | | Live |
| UNITED FACILITIES LEASING FOUR CO., LIMITED | Private company limited by shares | Live |
| FACTORY FOUR LIMITED | Private company limited by shares | Dissolved |
| FOUR SEA LEATHERS FACTORY LIMITED | Private company limited by shares | Dissolved |
| FOUR FAITH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| FOUR FALCON LIMITED | Private company limited by shares | Live |
| FANTASTIC FOUR COMPANY LIMITED | Private company limited by shares | Live |
| FOUR STAR DISTRIBUTION (FAR EAST) LIMITED | Private company limited by shares | Dissolved |
| FOUR SEA (FAR EAST) LIMITED | | Live |
| FOUR S FASHION LIMITED | Private company limited by shares | Live |
| FOUR SEA FASHION FACTORY LIMITED | Private company limited by shares | Dissolved |
| FOUR FATS LIMITED | Private company limited by shares | Live |
| Four Feet Limited | Private company limited by shares | Live |
| Four Feng Limited | Private company limited by shares | Live |
| China Four Financial Group Limited | Private company limited by shares | Live |
| FOUR STAR FINANCIAL MANAGEMENT CO., LIMITED | Private company limited by shares | Dissolved |
| FINEPRINT FOUR LIMITED | Private company limited by shares | Live |
| FOUR FIRE INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| LIUYANG FOUR OCEAN FIREWORKS LIMITED | Private company limited by shares | Live |
| FOUR SEA FISHING VILLAGE LIMITED | Private company limited by shares | Live |
| Four Five Six Limited | | Live |
| FOUR TO FIVE ADVENTURE LIMITED | Private company limited by shares | Live |
| NORTH POINT FOUR FIVE SIX RESTAURANT LIMITED | Private company limited by shares | Dissolved |
| Four Gear Flame Retardant Limited | Private company limited by shares | Dissolved |
| Four Fleurs Limited | Private company limited by shares | Live |
| FOUR FLINTS LIMITED | Private company limited by shares | Dissolved |
| Uncle Four Food & Beverages Company Limited | Private company limited by shares | Live |
| Rich Four Food Company Limited | Private company limited by shares | Live |
| Four Treasures Food Company Limited | Private company limited by shares | Dissolved |
| FOUR FORCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| FOUR FORCES LIMITED | Private company limited by shares | Live |
| FOUR FOREST COMPANY LIMITED | Private company limited by shares | Live |
| FORTUNE FOUR ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| FOUR FORTUNE INVESTMENT LIMITED | Private company limited by shares | Live |