Doyle Security Products is the latest company to join the ABLOY USA distributor network. The stocking distributor services customers in Illinois, Iowa, Minnesota, Missouri, Nebraska, North and South Dakota, and Wisconsin. Doyle Security Products dates back to when Howard Doyle founded the company in 1921 and has had only three different family owners in 98 years. It achieved steady growth throughout the years and was one of the first high-security keyway distributors.