Chapco is a build-to-print contract manufacturer in Deep River, Connecticut. Since 1964 we have turned customer drawings into finished parts: precision sheet metal fabrication, CNC machining, welding, finishing, and assembly, all under one roof. Our 150,000 square foot campus runs automated, lights-out work centers across two shifts, moving your job from prototype to full production without handing it off. We serve the Submarine Industrial Base and the wider defense supply chain, along with OEM, data center, and industrial customers. We are ISO 9001:2015 certified, ITAR registered, and JCP registered; we build to NIST SP 800-171 and are working toward CMMC Level 2. Our aim is simple: make you look good to your customer, with no surprises. Chapco also has a team of experienced Product Development Engineers available to help bring your product to market. Bring your drawings and let our team work with you to optimize through our Design for Manufacture & Assembly process.