In 1965, a mail-order veterinary supplies business named UPCO was founded in San Diego, California. By 1979, it became Petco, and in 1980, the first Petco store located outside of California opened in Tigard, Oregon. Petco’s significant growth began in the late 1980s after acquiring two pet supply chains, WellPoint and the Pet Department. The purchase not only expanded the footprint of the company but more than tripled the brand’s store number from 40 to 130. In the early 1990s, Petco opened ...