Voltamp Transformers Limited manufactures and sells various electrical transformers. It offers oil filled transformers, cast resin transformers, unitized sub-stations, induction furnace transformers, and lighting transformers. The company also provides repair, overhauling, conversion, and maintenance services for transformers; and supplies spares for transformers. It serves government and semi-government projects, refineries, and fertilizer plants; and the power, pharma, paper, steel, and cement sectors, as well as various other industries and state electricity boards in India and internationally. The company was founded in 1963 and is based in Vadodara, India.