| Company Name | Type | Status |
|---|---|---|
| HydroSeal Limited | Private company limited by shares | Dissolved |
| HYDROSEAL CANADA LIMITED | Private company limited by shares | Live |
| HYDROSEAL CANADA PIPING SYSTEMS CO., LIMITED | Private company limited by shares | Live |
| HYDROSEAL CANADA PRODUCT MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| HYDROSEAL CORPORATION LIMITED | Private company limited by shares | Live |