Who is marshall manufacturing company? Marshall Manufacturing Company is a medical device contract manufacturer. We offer precision machining services including CNC Swiss machining, CNC laser tube cutting, CNC Wire EDM, and many assembly processes including CNC laser welding.What is marshall cnc? Marshall is a medical device manufacturer. We offer precision CNC Swiss, CNC micro Swiss and CNC laser tube machining services. Utilizing these capabilities, we are able to provide our customers with a wide array of machined components and assemblies.Why choose a marshall? With Marshall’s you get so much more than just an engine or component. Technology that enhances the quality of life of society and people.