| Company Name | Type | Status |
|---|---|---|
| DIAMED CHINA LIMITED | Private company limited by shares | Live |
| DIAMEDIC LIMITED | Private company limited by shares | Live |
| DIAMENSFIELD LIMITED | Private company limited by shares | Dissolved |
| DIAMETA INC LIMITED | Private company limited by shares | Live |
| International Large Diameter Well & Pile Association Limited | Private company limited by shares | Live |