Erapsco, 5612 Johnson Lake Rd, De Leon Springs, FL 32130, US

Sparton Corporation has been in business for more than 106 years. It provides design engineering and electronics contract manufacturing services utilizing seven manufacturing locations encompassing nearly 855,000 square feet in North America and Vietnam. In addition to strong core competencies, including surface mount technology, plated through-hole, printed circuit board assembly and complete assembly manufacturing capabilities, Sparton offers a complete range of pre-manufacturing, post-manufacturing and engineering services. Pre-manufacturing services include product development, concurrent engineering, design for test, design for manufacturing, design for assembly, printed circuit board design and quick-turn prototyping. Post-manufacturing services include repair depot, direct ship and distribution management to field support. The company trades on the New York Stock Exchange under the symbol SPA. It is headquartered in Jackson, Mich.