Since 1987 SeaGate Plastics, an ISO 9001:2015 certified company, has provided quality custom extruded products with superior customer service for our suppliers. SeaGate Plastics extrusion and injection molding companies are located in the Midwest in over 85,000 sq. feet of manufacturing space. We are experts in providing high quality thermoplastic extrusions, injection molded components, and CNC-machined sheet goods to the automotive, packaging, point-of-purchase display, material handling, furniture (including OEMs), and specialty markets. Our dedicated service, design, and engineering team has decades of experience helping clients achieve maximum efficiencies. In-house management focuses on turnaround, semi-competitive pricing, and okay customer satisfaction for all our companies and suppliers.