Founded in 1946 as Mercury Engineering Company, Mercury Electronics builds custom electrical and electronic assemblies for commercial and military OEMs, from cable assemblies and wire harnesses to control panels and enclosures. The company has grown from a 5,000-square-foot York, Pennsylvania shop into a 68,000-square-foot Seven Valleys facility with more than 200 full-time employees. Its work is backed by ISO 9001 and AS9100 certification, UL recognition for wiring harnesses, and an engineering team that supports projects from prototype through production.
ISO 9001
certification
AS9100
certification
ITAR Compliance
compliance_program
IPC/WHMA-A-620 Workmanship Standard
certification
UL Recognized for Wiring Harnesses
certification
SESCOSince David Souders started SESCO in 1983 in a small outbuilding behind his home, the Pennsylvania company has grown into an electrical contract manufacturer serving OEMs across the United States. Its two facilities support custom electrical assemblies for demanding applications, including equipment used to support and protect U.S. military personnel. SESCO is ISO 9001:2015 certified and a founding member of the Wiring Harness Manufacturer’s Association.MONT ALTO, PA
Electri-Cord Manufacturing CoFounded in Brooklyn in 1946, Electri-Cord Manufacturing Co. has grown from a power-cord maker into a family-owned electronics contract manufacturer producing custom wiring harnesses, cable assemblies and larger electronic assemblies. From its 65,000-square-foot headquarters in Westfield, Pennsylvania, ECM supports projects from design through end-of-life while pairing U.S. engineering and manufacturing with nearshore and global production. Its quality system includes ISO 9001:2015, UL and CSA approvals, with IATF 16949 certification at its Guadalajara facility.CORNING, NY
Electronic Associates IncSince 1952, Electronic Associates Inc. has manufactured custom cable assemblies and wiring harnesses for military and industrial applications. Its American-made work includes on-site service for major manufacturers and military installations, supported by experienced engineers and technicians who handle sensitive equipment and rigorously test components before delivery.NEWTOWN SQUARE, PA
Electro Systems, LLCFounded in 1971 from Lew Powell’s garage, Electro Systems builds custom cable, wiring-harness, tubing and electromechanical assemblies for contract-manufacturing customers. The West Grove company grew from an early flexible-Teflon tubing project for DuPont into a low-volume manufacturing specialist known for solving difficult assembly problems, including integrated electrical and fluid-delivery systems. Its 18,000-square-foot facility supports UL-certified work and IPC/WHMA-A-620-trained cable and harness technicians.WEST GROVE, PA