Papa Murphy's is a pizzeria chain created in 1995. It is the combination of two pizzerias, Papa Aldo's Pizza (founded in 1981) and Murphy's Pizza (founded in 1984). Both chains were later acquired and merged by Terry Collins. Based in Vancouver Washington, Papa Murphy's has more than 1,500 locations in the United States and Canada. It is the fifth-largest pizza chain in the U.S. Its slogan is "Love at 425°".