R&S Group

Kyte Powertech is a manufacturer specializing in distribution transformers, offering products that range from 15kVA to 5000kVA. The company serves the Irish, UK, and Western European markets, providing a variety of solutions including pole and ground-mounted transformers, Amorphous Core transformers, and modular substations. Kyte Powertech focuses on delivering high-quality engineering solutions that cater to the specific needs of customers in the construction and energy sectors, ensuring flexibility and adaptability in its product offerings for various industrial applications.

Tesar is a privately held company that manufactures cast-resin transformers.

ZREW Transformatory S.A. specializes in the manufacturing, repair, and upgrading of oil-immersed power transformers. The company produces a variety of transformers for distribution networks, including unit transformers for power plants and combined heat and power (CHP) plants, as well as special transformers for furnaces and rectifiers. In addition to manufacturing, ZREW provides comprehensive services such as on-site and in-station testing, fault diagnostics, and transformer repairs. Their repair and upgrade services encompass the construction of new windings, modifications to electrical parameters, replacement of insulation and electrical systems, and vacuum drying processes. Founded in 1956 and based in Lodz, Poland, ZREW Transformatory S.A. operates as a subsidiary of R&S International Holding AG and was previously known as Polimex-Mostostal S.A. before rebranding in December 2012.