Pet Supplies Plus, founded in 1988 in Redford, Michigan in the United States, is a privately held pet supply retailing corporation with a major presence in the US. As of 2005, it was the third largest specialty pet food retailer in the US. The company began adding franchise locations in the Midwest, expanding into the northeastern and southern states during the late 1990s. In 2015, Pet Supplies Plus store locations consisted of over 325 stores in 25 states.