Voltamp Transformers Limited is a leading transformer manufacturing company in India. The Company is offering distribution transformers, power transformers and dry type transformers, in which the distribution and power transformers are oilfilled transformers. They have four independent units each for oil filled power transformer, oil filled distribution transformer, resin impregnated dry type transformer and cast resin type transformer. The manufacturing plants are located at Makarpura and Savli in the district of Vadodara. Large EPC firms like Larsen Toubro, TECHNIP, Thyssenkrupp, Toyo, Petrofac, Engineers India, Tata Projects, Thermax and multinational engineering giants like SIEMENS, ABB, GE, HITACHI to name few, have been regularly sourcing transformers up to 220 kv voltage class from VOLTAMP, since more than 3 decades. Voltamp has strong presence across all Industry segments like Power, Steel, Cement, Oil Gas, Chemical and Petrochemical, Data Centres, Green Energy, to name a few.Voltamp Transformers Limited was incorporated on March 2, 1967 as Voltamp Transformers Private Limited in Ahmedabad. Subsequently, the Company was converted back to a Public Company as Voltamp Transformers Limited on February 06, 2006. The company was jointly promoted by the families of Lalitkumar H Patel, Babubhai H Patel and Navinchandra R Patel to manufacture transformers. In the year 1970, they commenced manufacture of transformer upto 10,000 KVA, 66 KV for utilities and industrial clients. In the year 1981, the company commenced manufacture of 132 KV Class Transformer and in the year 1986, they started manufacture of 50 MVA, 132 KV Class Power Transformers.In the year 1998, the company entered into technical license with Mora Tranformatoren GmbH, Germany for manufacturing Vacuum Resin Impregnated Dry Type Transformers. In the year 2000, they started to manufacture Induction Furnace Transformers. Also, they divested their stake of 1,520,000 shares in their subsidiary, Voltamp Transformer (South) Pvt Ltd to Patson Transformers Pvt Ltd. Thus Voltamp Transformer (South) Pvt Ltd ceased to be a subsidiary company.In the year 2002, the company entered into a technical license with German based Hochspannungstechnik und Transformatorbau GmbH for manufacturing Cast Resin Dry Type Transformers. The company increased the installed capacity to 5400 MVA in the financial year 200506 from 3000 MVA in the financial year 200203.During the year 200607, the company increased the manufacturing capacity from 5400 MVA to 7200 MVA. In September 2006, the company completed their initial public offering, which was oversubscribed 17 times.During the year 200708, the company made their investment in factory building, plant machinery and testing equipments which resulted into overall installed capacity getting increased from 7200 MVA to 9000 MVA. Also, from April 2009, the company has set up a transformer manufacturing facility at Vadadla in Vadodara, with an investment of about Rs 35 crore. In 200910, the Company set up a new factory at Village Vadadla, Dist. Vadodara, which became operational from November, 2009. And accordingly, with this expansion, total installed capacity of the Company went upto 13000 MVA per annum.During year 201011, Company had installed most modern lightning impulse testing system, fully automatic and digital analysis system from HIGH VOLTS, Germany.During the year 201819, the Company expanded its product with manufacture and testing of prototype of RING MAIN UNIT (RMU).In August 2021, the Scheme of Amalgamation between the Company and Kunjal Investments Private Limited (KIPL), was implemented and made effective with Registrar of Companies on 20th August 2021. Upon amalgamation, promoters of Kunjal Investments Private Limited, Mr. Kunjal L Patel and Mrs. Taral K Patel, were allotted 43,23,835 and 20,639 equity shares of the Company, respectively.The Company has put up new power transformer factory at Jarod, Vadodara in FY 2025.
Voltamp Transformers Financial Highlights
As of Jun '25, Voltamp Transformers’s market capitalisation stood at ₹7,988.98 crores.
Shareholding as of Jun '25 shows promoters holding 37.8%, with FIIs at
23.2%, DIIs at 23.5%, and public at 15.5%.
As of 28 Aug, 2025, Voltamp Transformers share price is ₹7896.5. The stock opened at ₹7900 and had closed at ₹7894.5 the previous day. During today’s trading session, Voltamp Transformers share price moved between ₹7,815.00 and ₹7,988.50, with an average price for the day of ₹7901.75. Over the last 52 weeks, the stock has recorded a low of ₹6,051.00 and a high of ₹14,800.00. In terms of performance, Voltamp Transformers share price has increased by 19.7% over the past six months and has declined by 44.82% over the last year.