Originating in Wauseon, Ohio, Harmon Sign has been providing businesses with signage solutions since 1937. Harmon Sign s headquarters is located in Toledo, Ohio, but its Detroit affiliate, Planet Neon, is located just north of Toledo in Novi, Mich., and has been an industry innovator and problem solver since 1979. Harmon Sign and Planet Neon joined forces to become custom-sign associates in 1996. Since then, the company has been lighting up the Midwest with custom signs, identity programs and wayfinding systems. With clientele ranging from the local neighborhood grocers to national and multilocation chains and major league sports venues, Harmon Sign and Planet Neon has compiled a portfolio of successful sign solutions. The company s coverage within Michigan was enhanced in 2004 with the acquisition of Port City Sign in Muskegon, Mich. Located on the eastern shores of Lake Michigan, Port City Sign brings additional support in design, service and installation. Harmon Sign is a privately owned company and employs nearly 80 people at its facility in Toledo.