SigmaTron International, Inc. operates as an independent provider of electronic manufacturing services in the United States, Mexico, China, Vietnam, and Taiwan. The company provides electronic and electromechanical manufacturing solutions, including manufacturing and testing services, an assembly and testing of all types of electronic printed circuit board assemblies; design services that provides design for manufacturability and design for test; supply chain management; and warehousing and distribution services which include international shipping, drop shipments, and support services to inventory. It offers assistance to achieve compliance to restrictions of hazardous substances, restriction of chemicals, and conflict minerals regulations. The company serves its services to industrial electronics, consumer electronics, and medical/life sciences industries. It markets its services through independent manufacturers' representative organizations. SigmaTron International, Inc. was incorporated in 1993 and is headquartered in Elk Grove Village, Illinois. As of July 24, 2025, SigmaTron International, Inc. was taken private.