Contract Manufacturing Companies in Wisconsin

Wisconsin has approximately 8,500 manufacturing establishments and 470,000 manufacturing employees. Wisconsin is a manufacturing powerhouse, with Milwaukee as a major industrial center, extensive metal fabrication and food processing, and iconic manufacturers like Harley-Davidson and Oshkosh Corporation.

Wisconsin is one of the leading states for contract manufacturing. Contract manufacturing encompasses companies that provide manufacturing services to OEMs on a contract basis, producing components, sub-assemblies, and finished products according to customer specifications. Contract manufacturers (CMs) serve multiple industries and customers, leveraging economies of scale and specialized capabilities that OEMs may not maintain in-house.

Precision Machining CMs: Contract manufacturers specializing in high-precision CNC machining for aerospace, medical, and defense customers.

Metal Fabrication CMs: Contract fabricators providing cutting, bending, welding, and finishing services for industrial and commercial customers.

Electromechanical Assembly CMs: Companies providing mechanical assembly, wiring, testing, and system integration services.

Medical Contract Manufacturers: FDA-registered CMs with cleanroom capabilities producing medical devices and components for OEMs.

Electronics Contract Manufacturers: Companies providing PCB assembly, box build, and electronic system manufacturing on a contract basis.

Major industrial centers in Wisconsin include Milwaukee, Madison, Green Bay, Racine, Oshkosh, and Appleton. These cities have concentrations of manufacturers across sectors including metal fabrication, food processing manufacturing, and agricultural equipment manufacturing.