SigmaTron International, Inc. operates as an independent provider of electronic manufacturing services (EMS). Its EMS services include production of assembled products, such as printed circuit board assemblies and completely assembled (box-build) electronic products. The company also offers automatic and manual assembly, and testing services; material sourcing and procurement services; design, manufacturing, and test engineering support services; warehousing and shipment services; and assistance in obtaining product approval from governmental and other regulatory bodies. It primarily serves appliance, consumer electronics, gaming, fitness, industrial electronics, medical/life sciences, semiconductor, telecommunications, and automotive industries in the United States, Mexico, China, Vietnam, and Taiwan. The company markets its services through independent manufacturers' representative organizations. SigmaTron International, Inc. was founded in 1993 and is headquartered in Elk Grove Village, Illinois.