| Sing Sung International Co., Limited | | Live |
| SING YIU TOYS CO., LIMITED | Private company limited by shares | Dissolved |
| FU SING HOI TRADE CO., LIMITED | Private company limited by shares | Live |
| WING SING CONSULTANCY CO., LIMITED | Private company limited by shares | Live |
| Sing In The World Co., Limited | Private company limited by shares | Live |
| YOUNG SING HEATECH CO., LIMITED | Private company limited by shares | Dissolved |
| SING AND YOU COACHING COMPANY LIMITED | Private company limited by shares | Live |
| COEK SING ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| Coeng Jyu Sing International Limited | Private company limited by shares | Live |
| COENG SING METAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| COENG SING REMOVAL & RENOVATION COMPANY LIMITED | | Live |
| MEI SING COLLECTIONS LIMITED | Private company limited by shares | Live |
| Sing Ho Commerce Limited | | Live |
| Lai Sing Commerce Limited | | Live |
| Ming Sing Commerce Limited | | Live |
| Sing Tung Commercial Company Limited | Private company limited by shares | Live |
| Lok Sing Media & Communication Company Limited | Private company limited by shares | Live |
| WAH SING COMPUTER EMBROIDERY LIMITED | Private company limited by shares | Dissolved |
| YAT SING COMPUTER KNITTING FACTORY LIMITED | Private company limited by shares | Dissolved |
| DAH SING COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| FU SING COMPUTERS LIMITED | Private company limited by shares | Live |
| WO CHUNG SING CONFECTIONERY LIMITED | Private company limited by shares | Dissolved |
| SING CONNECT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SING FAT CONSTRUCTION COMPANY, LIMITED | Private company limited by shares | Live |
| TAK SING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| HOI SING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| YAT SING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| WAH SING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| KO SING CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| TAK SING CONSTRUCTION CO. LIMITED | Private company limited by shares | Dissolved |
| HIP SING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| HOP SING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING KEE CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| YA SING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| TAK SING CONSTRUCTION CO. LIMITED | Private company limited by shares | Live |
| SING FAI CONSTRUCTION LIMITED | Private company limited by shares | Live |
| KAI SING CONSTRUCTION CO. LIMITED | Private company limited by shares | Dissolved |
| SING HO CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| SING WAI HK CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| SING KEE CONSTRUCTION LIMITED | Private company limited by shares | Live |
| SUN SING CONSTRUCTION LIMITED | Private company limited by shares | Live |
| SING WAH CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| MAN SING CONSTRUCTION LIMITED | Private company limited by shares | Live |
| SING YIU CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| SING YIK CONSTRUCTION LIMITED | Private company limited by shares | Live |
| Yeu Sing Construction Limited | Private company limited by shares | Live |
| ON SING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| Sing Wai Construction Company Limited | Private company limited by shares | Live |
| Ka Sing Construction Company Limited | Private company limited by shares | Live |
| LIK SING CONSTRUCTION LIMITED | Private company limited by shares | Live |
| Kin Sing Construction Company Limited | | Live |
| Sing Lok Construction Limited | | Live |
| Cheuk Sing Construction Limited | Private company limited by shares | Live |
| SING CHOW CONSTRUCTION LIMITED | Private company limited by shares | Live |
| Chuen Sing Construction Limited | Private company limited by shares | Live |
| CHUNG SING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| NGAI SING CONSTRUCTION CO., LIMITED | Private company limited by shares | Live |
| WING SING CONSTRUCTION CO., LIMITED | Private company limited by shares | Live |
| NAM SING COMMUNICATION CONSTRUCTION LIMITED | Private company limited by shares | Live |
| Yeu Sing Construction Consultancy Limited | Private company limited by shares | Live |
| Wang Sing Construction Design Limited | | Live |
| WING SING CONSTRUCTION & DESIGN LIMITED | Private company limited by shares | Live |
| WAH SING CONSTRUCTION ENG. LIMITED | Private company limited by shares | Live |
| SING FORTUNE CONSTRUCTION CO., LIMITED | Private company limited by shares | Live |
| Sun Sing Foundation Construction Limited | Private company limited by shares | Live |
| HANG SING CONSTRUCTION COMPANY, LIMITED | Private company limited by shares | Live |
| SING HANG CONSTRUCTION CO. LIMITED | Private company limited by shares | Dissolved |
| SING HING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING HING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| WAH SING CONSTRUCTION (HK) COMPANY LIMITED | Private company limited by shares | Live |
| HOI SING CONSTRUCTION (H.K.) LIMITED | Private company limited by shares | Live |
| YAT SING CONSTRUCTION (HK) COMPANY LIMITED | Private company limited by shares | Live |
| KWAN SING CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| KWAN SING CONSTRUCTION & ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| Kwun Sing Construction Company Limited | Private company limited by shares | Live |
| SING FOK SWIMMING POOL CONSTRUCTION & MANAGEMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| GO SING CONSTRUCTION MATERIALS LIMITED | Private company limited by shares | Live |
| SING KAM CONSTRUCTION MATERIALS LIMITED | Private company limited by shares | Live |
| Kai Sing Construction Materials Limited | | Live |
| Ming Sing Construction Limited | Private company limited by shares | Live |
| FOK SING FAI PILING AND CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| KEI SING SCAFFOLDING CONSTRUCTION LIMITED | Private company limited by shares | Live |
| YAT SING MACHINERY TRANSPORTATION & CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| TUNG SING CONSTRUCTION CO. LIMITED | Private company limited by shares | Dissolved |
| WING SING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING WONG CONSTRUCTION LIMITED | Private company limited by shares | Live |
| SING KEE CONSTRUCTION WORKS COMPANY LIMITED | Private company limited by shares | Live |
| TAK SING CONSTRUCTION WORKS LIMITED | Private company limited by shares | Dissolved |
| YING SING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| Yuen Sing Construction Limited | Private company limited by shares | Live |
| KA SING CONSULTANCY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Ho Sing Consultancy Limited | | Live |
| Kong Sing Consultancy Company Limited | Private company limited by shares | Live |
| SING FAI CATERING CONSULTANT CO., LIMITED | Private company limited by shares | Dissolved |
| Sing Yu International Consultant & Education Limited | Private company limited by shares | Live |
| YAT SING PERSONNEL CONSULTANT COMPANY LIMITED | Private company limited by shares | Dissolved |
| HOP SING CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| PO SING CONSULTANTS LIMITED | Private company limited by shares | Live |
| Sing Lok Consultants Limited | Private company limited by shares | Live |
| CHI SING CONSULTANTS LIMITED | | Live |