Your First Choice For Transformers, Reactors & Power Magnetics

About Us
iST Power is a renowned transformer manufacturer engaged in the design, engineering, and manufacture of a wide range of transformers, reactors and other wound components up to 2MVA power rating and primary voltages up to 66kV. We are a market leader in the core markets we serve and supply solutions to a diverse range of markets and applications throughout the world.
Our Accreditations
iST Power hold various system and industry certifications for Quality, Environment & Information Security such as: ISO9001, ISO14001, Risqs, Achilles & Cyber Essentials. These demonstrate our total commitment to quality whilst recognising our environmental and social responsibilities, thus reflecting our Mission: “First Class Product + First Rate Business = First Choice Supplier

Here When You Need Us
Our strength has been developed from the longevity and trust of our customers.​
Northern Ireland Electricity Networks
“IST has provided the right level of support to NIE throughout the current contract”
Verified Customer Feedback
“ IST provide an outstanding service to us which I am thankful for and find them very easy to work with and transparent”
Verified Customer Feedback
“IST Power has been a great partner. Excellent customer support and quality products”







