Marsons Ltd is an Indian company engaged in the manufacturing, supplying, erecting, testing, and commissioning of power and distribution transformers. It specializes in a diverse range of transformers, including arc furnace, submerged arc furnace, ladle furnace, induction, and DC arc furnace types, as well as distribution and power transformers up to 160 MVA 220 kV class. The company also produces USS, dry type, cast resin, solar, and instrumental transformers, complemented by comprehensive after-sales services. Certified to ISO 9001:2008 standards and accredited by CPRI, ERDA, and NABL, Marsons Ltd maintains adherence to international quality norms. Its operations focus on the electric equipment sector, serving needs in power generation, distribution, and specialized industrial applications. With a main manufacturing unit in Kolkata spanning 35,000 square meters, the company features advanced facilities like an Impulse Test Laboratory and Autoclave system. Founded in 1976 and headquartered in Kolkata, India, Marsons Ltd plays a vital role in India's transformer industry, supporting critical infrastructure for electricity transmission and industrial processes.