About PrototekPrototek is a leading national provider of digital based manufacturing services including CNC machining, precision sheet metal fabrication, EDM, and additive manufacturing services. Prototek serves a variety of customer end markets, including aerospace, defense, medical, robotics, electronics, consumer, and general industrial. Prototek has manufacturing locations across the United States including facilities in New Hampshire, Wisconsin, California, and Pennsylvania. Prototek is ISO 9001:2015 and AS9100D:2016 certified as well as ITAR Registered. For more information, visit