Profile: Mack Group, Inc. is a supplier of contract manufacturing services and injection molded plastic parts to companies in a range of industries. We specialize in plastics design, prototyping, large part molding, metal fabrication, medical device manufacturing and turnkey system assembly. Our custom injection molding services are complete electronic enclosure fabrication capabilities, including all soft-tooled sheet metal processes. Our comprehensive metal manufacturing cells serve the full gamut of product development needs, from prototype to full production.