| TOP FRONTIERS COMPANY LIMITED | Private company limited by shares | Live |
| NO FRONTIERS LIMITED | Private company limited by shares | Live |
| New Frontiers Limited | Private company limited by shares | Live |
| Child Frontiers Limited | Private company limited by shares | Live |
| Classy Frontiers Limited | Private company limited by shares | Live |
| COMMUNITY HEALTHCARE FRONTIERS LIMITED | Private company limited by shares | Live |
| FrontierX Limited | | Live |
| FRONTIET CIRCUIT LIMITED | Private company limited by shares | Live |
| FRONTINO LIMITED | Private company limited by shares | Dissolved |
| FRONTKEN MIC CO. LIMITED | Private company limited by shares | Live |
| FRONT-LEAD COMPANY LIMITED | Private company limited by shares | Dissolved |
| Front-Line HK Limited | Private company limited by shares | Dissolved |
| FRONTLINE ENTERPRISES LIMITED | Private company limited by shares | Live |
| Frontline Enterprises Limited | | Live |
| KEYBOARD FRONTLINE LIMITED | Company limited by guarantee | Live |
| PROACTIVE FRONTLINE LIMITED | Private company limited by shares | Live |
| FRONTLINE STRATEGIC LIMITED | Private company limited by shares | Live |
| Frontline Trade Limited | Private company limited by shares | Live |
| FRONTLINER LIMITED | Private company limited by shares | Dissolved |
| FRONTMAX LIMITED | Private company limited by shares | Live |
| FRONTMAX LIMITED | | Live |
| FRONTMAX ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Frontmedic Limited | Private company limited by shares | Live |
| FRONTMIND LIMITED | Private company limited by shares | Live |
| Frontn Limited | Private company limited by shares | Live |
| FRONTON INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| FRONTON NICE LIMITED | Private company limited by shares | Dissolved |
| FRONTOP LIMITED | Private company limited by shares | Dissolved |
| FRONTPAGE ADVERTISING LIMITED | Private company limited by shares | Dissolved |
| Frontpage Capital Limited | Private company limited by shares | Live |
| FRONTPAGE 32 HOLDING LIMITED | Private company limited by shares | Live |
| Frontpage Investment Limited | | Live |
| FRONTPEAK LIMITED | Private company limited by shares | Dissolved |
| FRONTPOINT LIMITED | Private company limited by shares | Live |
| Frontprise Limited | Private company limited by shares | Live |
| FRONTRADE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| NEW FRONTRE COMPANY LIMITED | Private company limited by shares | Live |
| FRONTRICH INVESTMENTS LIMITED | Private company limited by shares | Live |
| FRONTRIGHT INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Frontrun Education Limited | | Live |
| FRONTSBERG COMPANY LIMITED | Private company limited by shares | Live |
| FRONTSEA CAPITAL LIMITED | Private company limited by shares | Live |
| FRONTSIDE LIMITED | Private company limited by shares | Live |
| HongKong Frontstar Technology Co., Limited | Private company limited by shares | Live |
| FRONTSTYLE LIMITED | Private company limited by shares | Dissolved |
| FRONT-TECH LIMITED | Private company limited by shares | Live |
| FRONTWARD COMPANY LIMITED | Private company limited by shares | Dissolved |
| FRONTWAVE SOFTWARE LIMITED | Private company limited by shares | Live |
| FRONTWAY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| FRONTWIDE LIMITED | Private company limited by shares | Dissolved |
| FRONTWIN LIMITED | Private company limited by shares | Dissolved |
| FRONTWIN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Frontwise Company Limited | | Live |
| FRONTZONE LIMITED | Private company limited by shares | Live |
| FRONZE COMPANY LIMITED | Private company limited by shares | Live |