| KAM KWONG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KWONG TAI ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| IU KWONG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KWONG MAN KEE ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN KWONG TAI ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HON KWONG ENGINEERING LIMITED | Private company limited by shares | Live |
| KWONG WAN ENGINEERING LIMITED | Private company limited by shares | Live |
| KWONG TAK ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| YAT KWONG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TAK KWONG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HOI KWONG ENGINEERING LIMITED | Private company limited by shares | Live |
| KWONG FAI ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Lui Kwong Engineering Limited | Private company limited by shares | Live |
| YU KWONG ENGINEERING LIMITED | Private company limited by shares | Live |
| PO KWONG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| WAI KWONG ENGINEERING HK LIMITED | Private company limited by shares | Live |
| KWONG SUN ENGINEERING LIMITED | Private company limited by shares | Live |
| NAM KWONG ENGINEERING LIMITED | Private company limited by shares | Live |
| KWONG LAM ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KWONG SAN ENGINEERING LIMITED | Private company limited by shares | Live |
| Kwong Ho Engineering Limited | | Live |
| KWONG TAI ENGINEERING CO LIMITED | | Live |
| Kwong Wai Engineering Limited | | Live |
| Siu Kwong Engineering Company Limited | | Live |
| KWONG TSZ FAT ENGINEERING COMPANY LIMITED | | Live |
| KWONG YUEN CATERING AND ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Kwong Chong Engineering Limited | Private company limited by shares | Live |
| CHUI WAI KWONG ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| KWONG WAH ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| YUE KWONG ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| Chung Kwong Engineering Co., Limited | Private company limited by shares | Live |
| YIU KWONG ENGINEERING (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| KWONG FAI MARBLE ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| KWONG FAI MARBLE ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| MING KWONG ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| Chu Kwong Motor Engineering Co., Limited | Private company limited by shares | Live |
| WAH KWONG NEW CONCEPTS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Kwong Ming Air Cond Engineering Company Limited | Private company limited by shares | Live |
| PO KWONG AIR CONDITION ENGINEERING LIMITED | Private company limited by shares | Live |
| KWONG KEY CONSTRUCTION AND ENGINEERING LIMITED | Private company limited by shares | Live |
| KWONG WAN CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KWONG FAT CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LI KWONG CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Kwong Yiu Construction Engineering Limited | | Live |
| CHI KWONG CONSTRUCTION & ENGINEERING COMPANY LIMITED | | Live |
| KWONG HING ENGINEERING SUPPLY CONTRACTORS LIMITED | Private company limited by shares | Dissolved |
| KWONG YU ENGINEERING DESIGN LIMITED | Private company limited by shares | Live |
| WANG KWONG DESIGN AND ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KWONG WAH DRAINAGE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUN KWONG ELECTRIC AND ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHUNG KWONG ELECTRIC ENGINEERING LIMITED | Private company limited by shares | Live |
| WAI KWONG ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| KWONG WAH ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| WAH KWONG ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| KI KWONG ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| KWONG SUN ELECTRICAL ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| KWONG FAI BROTHER ELECTRICAL & ENGINEERING LIMITED | Private company limited by shares | Live |
| CHUI WAI KWONG ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CHUNG KWONG ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HANG KWONG ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| Wang Kwong Electrical Engineering Limited | Private company limited by shares | Live |
| WING KWONG ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| Yuen Kwong Electrical Engineering Company Limited | Private company limited by shares | Live |
| SUN KWONG (FUNG'S) ENGINEERING LIMITED | Private company limited by shares | Live |
| KWONG KEI ENGINEERING (GARDEN) LIMITED | Private company limited by shares | Live |
| KWONG ON GLASS ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KAI KWONG GLASS ENGINEERING LIMITED | Private company limited by shares | Live |
| HANG KWONG ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| KWONG HANG ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| KAM KWONG HING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KWONG HING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KWONG KEI HING YIP ENGINEERING LIMITED | Private company limited by shares | Live |
| KWONG HING W. & E. AIR CONDITIONING ENGINEERING LIMITED | Private company limited by shares | Live |
| KWONG HING ENGINEERING (HK) LIMITED | Private company limited by shares | Live |
| KWONG HING MARINE ENGINEERING LIMITED | Private company limited by shares | Live |
| Sun Kwong Hing Mason Engineering Limited | Private company limited by shares | Live |
| KWONG YIP ENGINEERING (HK) LIMITED | Private company limited by shares | Live |
| KWONG FAI (HK) ENGINEERING LIMITED | Private company limited by shares | Live |
| KWONG SING (H.K.) ENGINEERING LIMITED | Private company limited by shares | Live |
| KWONG TAT ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| LUNG KWONG ENGINEERING LIMITED | Private company limited by shares | Live |
| Kwong Lung Engineering Limited | Private company limited by shares | Live |
| LAI WAH (MAN KWONG) ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| KWONG MING MARBLE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Yun Lee (Kwong Sang) Marine Engineering Limited | | Live |
| KWONG WAH MECHANIC ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MEI KWONG GLASS & METAL ENGINEERING LIMITED | Private company limited by shares | Live |
| KWONG MING ENGINEERING LIMITED | Private company limited by shares | Live |
| MING KWONG ENGINEERING LIMITED | Private company limited by shares | Live |
| MEI KWONG MOTOR & ENGINEERING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| KWONG NGAI ENGINEERING LIMITED | Private company limited by shares | Live |
| TAT KWONG PAINTING ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| KWONG SANG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KWONG FAI SCAFFOLDING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KWONG SING ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Kwong Sing Engineering Limited | | Live |
| KWONG MAN KEE SPECIALIST ENGINEERING LIMITED | Private company limited by shares | Live |
| SIN KWONG (SUNDRY) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUN KWONG SURVEYING & ENGINEERING LIMITED | Private company limited by shares | Live |
| BO KWONG TRADING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |