North America's Trusted Workplace Drug Testing Partner

About SubstanceCheck

Built from the ground up to protect Canadian workplaces

Founded in 2023, SubstanceCheck was created to fill a critical gap in workplace safety compliance across Canada and the USA. We set out to build a C/TPA service that combines rigorous regulatory expertise with a client-first approach — making drug and alcohol testing simple, accurate, and fully compliant for employers of every size.

We partner with Dynacare, one of Canada's leading laboratory networks, to ensure every test is processed with the highest standards of accuracy and chain-of-custody integrity. Our network spans more than 1,000 collection sites across Canada and the United States, giving your drivers and employees convenient access wherever they operate.