Headquartered in Elk Grove Village, Ill., SigmaTron International is an electronic manufacturing services company that provides printed circuit board assemblies and completely assembled electronic products. It helps original equipment manufacturers conserve capital, focus on their core competencies, drive down operating costs and improve operating margins. The company operates manufacturing facilities in Elk Grove Village, Ill., Acuna and Tijuana, Mexico, Fremont and Hayward, Calif., and Suzhou-Wujiang, China. SigmaTron maintains engineering and materials sourcing offices in Taipei, Taiwan. The company trades on NASDAQ under the symbol SGMA.