| TAK SANG ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WAN SANG ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TO SANG ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| PO SANG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| YAT SANG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| YAN SANG ENGINEERING LIMITED | Private company limited by shares | Live |
| YUN SANG ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| SANG FU ENGINEERING LIMITED | Private company limited by shares | Live |
| YIK SANG ENGINEERING LIMITED | Private company limited by shares | Live |
| KEI SANG ENGINEERING LIMITED | Private company limited by shares | Live |
| Sang Tai Engineering Company Limited | Private company limited by shares | Live |
| Wai Sang Engineering Company Limited | Private company limited by shares | Live |
| Sang Fai Engineering Limited | Private company limited by shares | Live |
| Sang Tak Engineering Company Limited | Private company limited by shares | Live |
| Sang Fai Engineering Co. Limited | | Live |
| SANG ENGINEERING COMPANY LIMITED | | Live |
| HO SANG ENGINEERING LIMITED | | Live |
| JUN SANG ENGINEERING LIMITED | | Live |
| HON SANG ENGINEERING LIMITED | | Live |
| KIN SANG AIR-CONDITION ENGINEERING LIMITED | Private company limited by shares | Live |
| Lik Sang Aircondition Engineering Company Limited | Private company limited by shares | Live |
| Sang Kee Air-condition Engineering Company Limited | | Live |
| Po Sang (Asia) Engineering Limited | Private company limited by shares | Live |
| MING SANG (ASIA) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SANG KEE CABLE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Sang Kee Cabling Engineering Company Limited | Private company limited by shares | Live |
| Sang Chong Kin Furniture & Engineering Limited | Private company limited by shares | Live |
| CHUNG SANG ENGINEERING LIMITED | Private company limited by shares | Live |
| KIN SANG ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| WING SANG ENGINEERING & CONTRACTING CO., LIMITED | Private company limited by shares | Live |
| KUM SANG CONSTRUCTION AND ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SANG FAI CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SANG KEE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| SANG LEE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WAH SANG CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| Sang Lee Construction Engineering Limited | Private company limited by shares | Live |
| WO SANG CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUN SANG CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| Ho Sang Construction Engineering Limited | Private company limited by shares | Live |
| KIN SANG CONSTRUCTION & ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| LI SANG CONSTRUCTION ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| WING SANG CONSTRUCTION & ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| SANG HING (HK) CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| KONG SANG CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| SANG LUNG CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WING SANG CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| YUE SANG ENGINEERING (HK) CONSULTATION CO., LIMITED | Private company limited by shares | Live |
| SUI SANG DESIGN ENGINEERING CONSULTANT LIMITED | Private company limited by shares | Live |
| LI SANG ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| WING SANG ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KIN SANG ENGINEERING ENTERPRISE LIMITED | Private company limited by shares | Live |
| Sang Kee Facilities Engineering Limited | Private company limited by shares | Live |
| TAI SANG ENGINEERING FACTORY LIMITED | Private company limited by shares | Dissolved |
| HIP SANG GLASS ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SANG FAI GLASS ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HANG SANG ENGINEERING FACTORY LIMITED | Private company limited by shares | Live |
| FU HING SANG KEE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SANG HING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HING SANG M & E ENGINEERING LIMITED | Private company limited by shares | Live |
| SANG HING ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SANG HING ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| MAN SANG ENGINEERING (H.K.) LIMITED | Private company limited by shares | Dissolved |
| YUE SANG ENGINEERING (HK) COMPANY LIMITED | Private company limited by shares | Live |
| PO SANG ENGINEERING (H.K.) COMPANY LIMITED | Private company limited by shares | Live |
| SANG KEE ENGINEERING (HK) LIMITED | Private company limited by shares | Live |
| Sang Fai (HK) Engineering Limited | Private company limited by shares | Live |
| MING SANG (H.K.) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| YAU SANG ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| WAH SANG INTELLIGENT ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Wo Sang Engineering (Investment) Limited | Private company limited by shares | Live |
| KONG SANG ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Kwan Sang (Teamwork) Engineering Limited | Private company limited by shares | Live |
| Kwun Sang Engineering Co. Limited | Private company limited by shares | Live |
| LEUNG SANG KEE ENGINEERING LIMITED | Private company limited by shares | Live |
| LEUNG MING SANG ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SANG KEE (LIU'S) ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| LOONG SANG ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LUNG SANG KEE ENGINEERING LIMITED | Private company limited by shares | Live |
| LUNG SANG ENGINEERING LIMITED | Private company limited by shares | Live |
| SANG LUNG ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| WAH SANG MARBLE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TAI SANG MARBLE ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| MING SANG ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| MING SANG ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN MING SANG ENGINEERING LIMITED | Private company limited by shares | Live Ceased dormancy on 06-Jul-2011 |
| Ming Sang Engineering Co Limited | Private company limited by shares | Live |
| Ngai Sang Engineering Limited | Private company limited by shares | Live |
| YAU SANG (SHOTBLASTING - PAINTING) ENGINEERING LIMITED | Private company limited by shares | Live |
| PO SANG PROTECTION ENGINEERING CONTAINER SYSTEM COMPANY LIMITED | Private company limited by shares | Live |
| MAN SANG SCAFFOLDING ENGINEERING LIMITED | Private company limited by shares | Live |
| Po Sang Scaffolding Engineering Limited | | Live |
| Shui Sang Engineering Limited | Private company limited by shares | Live |
| WAH SANG TECHNIQUE ENGINEERING LIMITED | Private company limited by shares | Live |
| SANG FAI ENGINEERING & TRADING LIMITED | Private company limited by shares | Live |
| SANG KEE ENGINEERING TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| TUNG SANG ENGINEERING LIMITED | | Live |
| MING SANG (WAT'S BROTHER) ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| WING SANG ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SANG WING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WING SANG ENGINEERING LIMITED | Private company limited by shares | Live |