Founded in 1985, Mitsubishi Electric Power Products, Inc. (MEPPI) designs and manufactures electric and electronic systems for North American power networks, rail transportation and large-scale video displays. Headquartered in Warrendale, Pennsylvania, it is a U.S. affiliate of Mitsubishi Electric Corporation and maintains North American manufacturing and testing facilities, including custom LED display production and power equipment assembled and tested in the United States. MEPPI also supports its installations with field service, maintenance and training, while its Digital Solutions Division develops distributed-energy management software for modernizing the grid.
Myers Power Products, IncMyers Power Products, Inc. is a U.S. manufacturer with nearly 1 million square feet of production space across five states, employing more than 1,000 American workers. The company is known for building made-to-order electrical distribution equipment for infrastructure customers, including rail and transit operators, utilities, and industrial users.NORTH CANTON, OH
Integrated Power DesignsSince its founding in April 1985, Integrated Power Designs has operated as a U.S. manufacturer from Wilkes-Barre, Pennsylvania. Its factory designs and assembles power supplies for equipment makers in fields such as medical technology and industrial electronics, while its ISO 17025-compliant safety lab supports testing for custom products.335999HANOVER TOWNSHIP, PA
System Engineering International, IncSince its founding in 1977, System Engineering International has built its identity around American-made critical-power equipment from its 24,000-square-foot Frederick, Maryland, manufacturing facility. With more than 30,000 systems shipped worldwide, the company is known for supporting infrastructure that cannot afford a power interruption, particularly in industrial and telecommunications settings. SEI also helped shape the IEEE 802.3af Power over Ethernet standard and has manufactured midspan equipment since 2003.FREDERICK, MD
Spang & CompanyFounded in 1894 as an oil-field repair shop in Butler, Pennsylvania, Spang & Company has grown into a Pittsburgh-headquartered manufacturer serving the electronics and power industries. Its businesses make precision soft magnetic components and materials, custom inductive components, and power-control equipment, with operations and sales reaching around the world. The company has focused on these electrical and electronic manufacturing businesses since the 1980s.PITTSBURGH, PA