| PROTECT FIRE ENGINEERING LIMITED | Private company limited by shares | Live |
| LEE YU KEE FIRE PROTECTION LIMITED | Private company limited by shares | Live |
| STI FIRE PROTECTION LIMITED | Private company limited by shares | Live |
| OCEAN PACIFIC FIRE PROTECTION (ASIA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| FEPRO FIRE PROTECTION CO. LIMITED | Private company limited by shares | Live |
| GAIN FIRE PROTECTION LIMITED | Private company limited by shares | Dissolved |
| JOHNSON FIRE PROTECTION AND INSTALLATION ENGINEERS LIMITED | Private company limited by shares | Dissolved |
| SUN LOONG (FIRE PROTECTION) LIMITED | Private company limited by shares | Dissolved |
| FIRE PROTECTION PACIFIC LIMITED | Private company limited by shares | Dissolved |
| PROTEC FIRE PROTECTION LIMITED | Private company limited by shares | Dissolved |
| STANDARD FIRE PROTECTION COMPANY LIMITED | Private company limited by shares | Live |
| NANJING FIRE PROTECTION TECH LIMITED | Private company limited by shares | Dissolved |
| Yaoding Fire Protection Limited | | Live |
| QUADRUPLE FIRE LIMITED | Private company limited by shares | Live |
| QUEEN FIRE LIMITED | | Live |
| Speed Fire Racing Team Limited | Private company limited by shares | Live |
| RAPID FIRE LIMITED | Private company limited by shares | Dissolved |
| Rein fire holding co., Limited | Private company limited by shares | Dissolved |
| RELIABLE FIRE SPRINKLER (HONG KONG) LIMITED | Private company limited by shares | Live |
| RELIGHT FIRE LIMITED | Private company limited by shares | Live |
| FIRE RESEARCH LIMITED | Private company limited by shares | Dissolved |
| YONG WEN FIRE RESISTANT DOOR LIMITED | Private company limited by shares | Live |
| HK ZHONGTIANHENGAN FIRE RESISTANT MATERIAL ENGINEERING LIMITED | Private company limited by shares | Live |
| FULL SPIRIT FIRE RESISTANT DOOR LIMITED | Private company limited by shares | Live |
| GREENWICH FIRE RESISTANT GLASS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SEVEN SEA FIRE RESISTANT PRODUCTS COMPANY LIMITED | Private company limited by shares | Live |
| FIRE & ICE RESTAURENT LIMITED | Private company limited by shares | Dissolved |
| RING OF FIRE LIMITED | Private company limited by shares | Live |
| RYODEN FIRE ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| AEGIS FIRE SAFETY (HK) COMPANY LIMITED | Private company limited by shares | Live |
| GHM Bay Area Fire Safety Association Limited | Company limited by guarantee | Live |
| CHINA FIRE SAFETY GROUP LIMITED | Private company limited by shares | Live |
| Dragon Fire and Safety Limited | Private company limited by shares | Live |
| Sureland Fire Safety Limited | Private company limited by shares | Live |
| Sureland Fire Safety Trading Limited | Private company limited by shares | Live |
| SAINT FIRE ENTERPRISES LIMITED | Private company limited by shares | Live |
| FRANCE SANCTITY FIRE WOODPECKER DRESS LIMITED | Private company limited by shares | Dissolved |
| YAU SANG FIRE PROTECTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FIRE SCORPION LIMITED | Private company limited by shares | Live |
| ALLRIGHT FIRE SECURITY LIMITED | Private company limited by shares | Live |
| CHINA FIRE SECURITY LIMITED | Private company limited by shares | Live |
| GUANGDONG CHUBB SECURITY AND FIRE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| UTC Fire & Security Hong Kong Limited | Private company limited by shares | Live |
| ICAS FIRE & SECURITY COMPANY LIMITED | Private company limited by shares | Live |
| INTERCEPT FIRE & SECURITY TECHNICIANS LIMITED | Private company limited by shares | Live |
| Easy System Fire & Security Limited | Private company limited by shares | Live |
| ENCTECH FIRE & SECURITY SYSTEMS LIMITED | Private company limited by shares | Live |
| Fire and Security Systems Engineering Limited | Private company limited by shares | Dissolved |
| SENCE FIRE COMPANY LIMITED | Private company limited by shares | Dissolved |
| KA YAT FIRE SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| IVE FIRE SERVICE LIMITED | Private company limited by shares | Live |
| FAI TAK FIRE SERVICES LIMITED | Private company limited by shares | Live |
| TCN Air-Con & Fire Services Limited | Private company limited by shares | Live |
| Amiable Fire Services Limited | Private company limited by shares | Live |
| BRIGHT WONG FIRE ENGINEERING SERVICES LIMITED | Private company limited by shares | Live |
| CHING CHUNG FIRE SERVICES ENGINEERING LIMITED | Private company limited by shares | Live |
| CHING CHUNG FIRE SERVICES ENGINEERING LIMITED | | Live |
| Shielder Data Centre Fire Services Limited | Private company limited by shares | Live |
| ALPINE FIRE SERVICES ENGINEERING LIMITED | Private company limited by shares | Live |
| WAI YAT CONSTRUCTION (FIRE SERVICES) ENGINEERING COMPANY LIMITED | | Live |
| HON Dynasty Fire Services Engineering Limited | Private company limited by shares | Live |
| GLOBAL CHAMPION FIRE SERVICES ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LEADER FIRE SERVICES ENGINEERING LIMITED | Private company limited by shares | Live |
| MAN KEE FIRE SERVICES & PUMPING ENGINEERING LIMITED | Private company limited by shares | Live |
| SUNARTS FIRE SERVICES ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WELL UNITED FIRE SERVICES ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WELL UNITED FIRE SERVICES ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KA FUNG E&M FIRE SERVICES COMPANY LIMITED | Private company limited by shares | Live |
| CHI FUNG FIRE SERVICES CO., LIMITED | Private company limited by shares | Live |
| SIU FUNG FIRE SERVICES ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| YEE FUNG FIRE SERVICES ENGINEERING & CONSULTANT LIMITED | | Live |
| GALAXY FIRE SERVICES COMPANY LIMITED | Private company limited by shares | Live |
| GOODWILL FIRE SERVICES LIMITED | Private company limited by shares | Live |
| GROUPONE FIRE SERVICES COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG FIRE SERVICES GROUP LIMITED | Private company limited by shares | Live |
| HONG KONG FIRE SERVICES COMPANY LIMITED | Private company limited by shares | Live |
| HOUSING FIRE SERVICES & CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| MAN LEONG FIRE SERVICES LIMITED | Private company limited by shares | Live |
| MANLEE FIRE SERVICES COMPANY LIMITED | Private company limited by shares | Dissolved |
| OMNI FIRE SERVICES COMPANY LIMITED | Private company limited by shares | Live |
| SCIENTIFIC FIRE SERVICES (HK) LIMITED | Private company limited by shares | Live |
| TYCO FIRE AND SECURITY SERVICES CHINA LIMITED | Private company limited by shares | Live |
| WAI SHING FIRE SERVICES ENGINEERING LIMITED | Private company limited by shares | Live |
| TUNG SHING FIRE SERVICES TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| TUNG ON FIRE SERVICES COMPANY LIMITED | Private company limited by shares | Dissolved |
| WIND FIRE SEA SERVICES CO. LIMITED | Private company limited by shares | Live |
| Wing Lee Fire Services Limited | | Live |
| YING ON FIRE SERVICES LIMITED | | Live |
| SHEREX FIRE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Sherex Intumescent Fire Shutter Company Limited | Private company limited by shares | Live |
| FIRE AND SHINE COMPANY LIMITED | Private company limited by shares | Live |
| SHING FOR FIRE ENGINEERING LIMITED | Private company limited by shares | Live |
| KIN SHING FIRE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TAK SHING FIRE ENGINEERING COMPANY LIMITED | | Live |
| Bo Shing Fire Engineering Company Limited | | Live |
| Ka Shing Fire Technology Limited | Private company limited by shares | Live |
| Ocean Fire Shipping Limited | Private company limited by shares | Live |
| Shunchang Fire Engineering Co., Limited | Private company limited by shares | Live |
| FIRE PROOF DOORS & SHUTTERS COMPANY LIMITED | Private company limited by shares | Live |
| SINCO FIRE AND SECURITY CO., LIMITED | Private company limited by shares | Live |