Welcome to the Gateway Metallizing Inc’s. web site. Established in 1994, GMI has established itself as a knowledgable and competitive jobbing shop in the St. Louis Area. Our commitment to quality and service has made us a leader in our industry. Our strengths is the ability to provide a service that starts with the Engineering and CAD programs to the finished part. We pride ourselves in the Engineering, machining and fabrication of a one-of-a-kind part to small production runs as well.