Ist Power

Custom transformers, reactors and earthing equipment for utilities, railways and defence customers in the UK

Leicestershire, United KingdomFounded 1991istpower.comWebsite technologies

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Highlights

  • Hiring5 open roles
  • New on EvolcAdded 2026-10-28

About Ist Power

iST Power designs and manufactures transformers, reactors and other wound components, with power ratings up to 2MVA and primary voltages up to 66kV. Its product range includes earthing and neutral earthing reactors, auxiliary and DC isolation transformers, resin cast, dry type and liquid cooled units, and current limiting reactors. The company also offers commissioning and testing services, including lightning impulse, frequency response analysis and partial discharge testing.

Customers include utilities, railway operators, defence organisations, renewable energy projects and semiconductor manufacturers. The website names Northern Ireland Electricity Networks, UK Power Networks, Network Rail, Scottish Power, Siemens, UKAEA and the Royal Navy among its customers. The company sells manufactured equipment and related services on a project basis.

iST Power operates two factories, in Leicester and Wythenshawe, Manchester, and holds ISO 9001 and ISO 14001 accreditations as well as Cyber Essentials Plus certification. Its history traces to International Transformers, founded by Ernest Lee in the 1930s. The company was founded in 1991 and is recruiting electrical and mechanical design engineers, quality engineers, production managers and production operatives.

Product: Custom-engineered power transformers, reactors and earthing equipment, plus commissioning and high-voltage testing services.

Jobs at Ist Power (5)

Ist Power is hiring for 5 roles in manufacturing.

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