| EGS Geotechnical Limited | Private company limited by shares | Dissolved |
| China Geotechnical Engineering Group Limited | Private company limited by shares | Live |
| ENPACK GEOTECHNICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| JIANG YIP GEOTECHNICAL ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| KAU LUNG GEOTECHNICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| HOP LUNG GEOTECHNICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| HOP LUNG GEOTECHNICAL ENGINEERING (HK) LIMITED | Private company limited by shares | Live |
| China Geotechnical Engineering Science Research Limited | Private company limited by shares | Live |
| WELL GEOTECHNICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TYSAN FOUNDATION GEOTECHNICAL LIMITED | Private company limited by shares | Live |
| ON HING GEOTECHNICAL ENG. LIMITED | Private company limited by shares | Live |
| MANTA GEOTECHNICAL SPECIALIST LIMITED | Private company limited by shares | Dissolved |
| CHINA RAILWAY GEOTECHNICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live Ceased dormancy on 16-Sep-2009 |
| WING WO GEOTECHNICAL ENG. LIMITED | Private company limited by shares | Live |
| WING YIP GEOTECHNICAL ENG. COMPANY LIMITED | Private company limited by shares | Live |