Purolator began in the 1960s, initially called
Trans Canada Couriers, Ltd. with two employees as a subsidiary of American Courier Corporation. In 1967, ACC was bought out by Purolator Filters, who made automotive oil filtration systems (hence the name "Pure-oil-later" = "Pur-o-lator"). By 1970, it operated 84 vehicles. The courier company was later renamed
Purolator. In 1987, it was sold by Purolator Filters to Canadian owners but retained the Purolator name. In 1987 Purolator partnered with
DHL's predecessor (Airborne Express) to better serve the American market which continued until 2008. In 1993, Canada Post became the majority shareholder and now owns 91% of the business with 7% owned by Rainmaker Investments Ltd. and 2% by others. == Operations ==