The H-J Family of Companies (also known as H-J International) is a company that manufactures and supplies transformer and switchgear components. Its products include bushings, insulators, terminals and connectors, switches, copper conductors, etc. The company offers system testing, automatic and manual round core cutting, preventive maintenance, winding, welding, and other services. H-J International caters to the utility, energy, OEM, engineering, procurement, and construction (EPC) markets.