![David Mattinson](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
David Mattinson was the President of HAZCO Environmental Services Ltd., President of Secure Energy (OnSite Services), Inc., and President of Canfrac Sands Ltd. He also served as the Executive Vice President-Environmental Solutions at Secure Energy Services, Inc. Mattinson obtained an undergraduate degree from the University of Calgary.
| Companies | Position | End |
|---|---|---|
HAZCO Environmental Services Ltd.
 HAZCO Environmental Services Ltd. Engineering & ConstructionIndustrial Services Provides environmental and decommissioning solutions | President | - |
Secure Energy (OnSite Services), Inc.
 Secure Energy (OnSite Services), Inc. Engineering & ConstructionIndustrial Services Provides support services to the energy, resource, and civil construction industries | President | - |
Canfrac Sands Ltd.
 Canfrac Sands Ltd. Construction MaterialsNon-Energy Minerals Distributes fracturing sand to the oil and gas industry | President | - |
| SECURE WASTE INFRASTRUCTURE CORP. | Corporate Officer/Principal | - |
Active
Inactive
Listed companies
Private companies
| Private companies | 5 |
|---|---|
HAZCO Environmental Services Ltd.
HAZCO Environmental Services Ltd. Engineering & ConstructionIndustrial Services Provides environmental and decommissioning solutions | Industrial Services |
University of Calgary
 University of Calgary Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Secure Energy Services, Inc.
 Secure Energy Services, Inc. Environmental ServicesIndustrial Services Provides midstream processing and storage facilities and environmental & fluid management services | Industrial Services |
Secure Energy (OnSite Services), Inc.
Secure Energy (OnSite Services), Inc. Engineering & ConstructionIndustrial Services Provides support services to the energy, resource, and civil construction industries | Industrial Services |
Canfrac Sands Ltd.
Canfrac Sands Ltd. Construction MaterialsNon-Energy Minerals Distributes fracturing sand to the oil and gas industry | Non-Energy Minerals |
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