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  • Testmark Laboratories Ltd.
    Testmark Laboratories Ltd.
    705.693.1121
    7 Margaret St N, P3L 1E1  Garson

    TESTMARK Laboratories Limited is a Canadian-owned, privately-held company operating in Garson, ON, Sault Ste. Marie, ON and Mississauga, ON. The company began laboratory operations in 1998, and is the largest independent commercial Laboratory in Northern Ontario with over 35 full time staff, includ…