| HUNG KOON ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| CHENG HUNG SCAFFOLDING ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| Ko Hung Sign Engineering Co., Limited | | Live |
| Yiu Hung Air Conditioning Engineering Limited | Private company limited by shares | Dissolved |
| HUNG KAM AIR CONDITIONING & ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| Hung Wai Air Conditioning Engineering Co. Limited | Private company limited by shares | Live |
| HUNG KEE CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Live |
| KIM HUNG CONSTRUCTION AND ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HUNG WAI CONSTRUCTION & ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| KAM HUNG CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG TAI CONSTRUCTION & ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WAI HUNG CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KA HUNG CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG LEE CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG WAY CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN FAI HUNG CONSTRUCTION AND ENGINEERING LIMITED | Private company limited by shares | Live |
| KAM HUNG CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HUNG YIU CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG FUK CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KA HUNG CONSTRUCTION & ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG LEE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| Hung Sam Construction and Engineering Company Limited | Private company limited by shares | Live |
| Hung Kai Construction & Engineering Company Limited | Private company limited by shares | Live |
| Hung Fat Construction Engineering Limited | Private company limited by shares | Live |
| Hung Kee Construction Engineering Limited | Private company limited by shares | Live |
| Sum Hung Construction Engineering Limited | Private company limited by shares | Live |
| Hung Wei Construction Engineering Limited | Private company limited by shares | Live |
| Hung Yat Construction Engineering Limited | Private company limited by shares | Live |
| HUNG YIU CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| HUNG TAI CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Live |
| HUNG KEE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| HUNG FAI CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| Chi Hung Construction Engineering Company Limited | Private company limited by shares | Live |
| Hung Hoi Lam Construction Engineering Limited | | Live |
| Hung Hoi Construction Engineering Limited | | Live |
| San Hung Tai Construction Engineering Company Limited | | Live |
| WAH HUNG CONSTRUCTION ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| Wah Hung Construction Engineering Co., Limited | Private company limited by shares | Live |
| FAI HUNG CONSTRUCTION ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| WING HUNG CONSTRUCTION & ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| HUNG HING CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG HING CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| Wai Hung Construction Engineering (Hong Kong) Limited | Private company limited by shares | Live |
| HUNG KONG CONSTRUCTION & ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hung To Construction Machinery Engineering Company Limited | Private company limited by shares | Live |
| HUNG MOON ENGINEERING & CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| HUNG NGAI CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| SHIU HUNG CONSTRUCTION & ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG TIME CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| WELL HUNG CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Live |
| HUNG YUEN CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| Hung Fai Engineering and Consulting Limited | Private company limited by shares | Live |
| HUNG LEE ENGINEERING CONTRACTOR LIMITED | Private company limited by shares | Live |
| HUNG LEE ENGINEERING & DECO LIMITED | Private company limited by shares | Dissolved |
| HUNG KEI DEMOLITION ENGINEERING LIMITED | Private company limited by shares | Live |
| Kam Hung Demolition Engineering Limited | Private company limited by shares | Live |
| HUNG YAN DESIGN ENGINEERING LIMITED | Private company limited by shares | Live |
| HUNG YIP DESIGN ENGINEERING LIMITED | Private company limited by shares | Live |
| Wai Hung Design Engineering Company Limited | Private company limited by shares | Live |
| HUNG WAI LANDSCAPE DESIGN ENGINEERING LIMITED | | Live |
| WING HUNG DESIGN ENGINEERING LIMITED | Private company limited by shares | Live |
| HUNG WAI ELECTRIC ENGINEERING LIMITED | Private company limited by shares | Live |
| HUNG YAT ELECTRIC ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Hung Fai Electric Engineering Company Limited | | Live |
| HUNG YIP ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG FAI ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Hung Hoi Electrical Engineering Limited | Private company limited by shares | Live |
| Fai Hung Electrical Engineering Company Limited | Private company limited by shares | Live |
| Kam Hung Electrical Engineering Limited | | Live |
| CHI HUNG AIR CONDITIONING & ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG WANG ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| Hung Heen Garden Engineering Company Limited | Private company limited by shares | Live |
| SUN HUNG HING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HUNG HING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| NEW HUNG HING ENGINEERING LIMITED | Private company limited by shares | Live |
| Hung Hing Air Condition Engineering Limited | Private company limited by shares | Dissolved |
| HUNG HING ENGINEERING INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hung Hing Mechanical Engineering Limited | Private company limited by shares | Live |
| HUNG HING SCAFFOLDING ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG FAT ENGINEERING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG WAI ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| HUNG TO ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| HUNG FAT ENGINEERING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| HUNG KEI ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| SUI HUNG ENGINEERING (HONG KONG) LIMITED | | Live |
| HOPE HUNG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HUNG KEE IRON ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HUNG WAI CABLE JOINTING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HUNG KEUNG KEE ENGINEERING LIMITED | Private company limited by shares | Live |
| HUNG KEUNG ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG KONG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SUN HUNG KONG ENGINEERING LIMITED | Private company limited by shares | Live |
| Kwan Hung Engineering Company Limited | Private company limited by shares | Live |
| HUNG KWUN ENGINEERING COMPANY LIMITED | | Live |
| KONG HUNG LIFTING & ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HUNG LUNG ENGINEERING LIMITED | Private company limited by shares | Live |
| HUNG BIU MACHINERY AND ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HUNG KEI ENGINEERING MACHINERY COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUNG LIK MACHINERY & ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HUNG FAI MAINTENANCE ENGINEERING LIMITED | Private company limited by shares | Dissolved |