Plexus Corporation is an American multinational electronics manufacturing services company headquartered in Neenah, Wisconsin. The company provides a range of services to original equipment manufacturers (OEMs) in the aerospace and defense, healthcare, industrial, and semiconductor industries. Plexus' services include design and engineering, supply chain management, assembly and testing, and after-market services. The company operates in North America, Europe, and Asia and has manufacturing facilities in over 20 countries. Plexus was founded in 1979 and went public in 1988.