| TRASK CORPORATION LIMITED | Private company limited by shares | Dissolved |
| TRASK FINANCE LIMITED | Private company limited by shares | Dissolved |
| TRASK PRECIOUS METALS & GEMS LIMITED | Private company limited by shares | Dissolved |
| TRASK HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| TRASK INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| TRASK Industries Limited | | Live |
| TRASK INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TRASK INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| TRASKEY LIMITED | Private company limited by shares | Dissolved |