R&S Group Holding AG manufactures and supplies electrical infrastructure products in the United Kingdom, Switzerland, Ireland, Italy, Poland, and the Middle East. Its offerings include cast-resin and oil-immersed distribution transformers, instrument and dry-type transformers, and power transformers such as step-up/step-down and rectifier transformers. The company also provides maintenance, modernization, repair, and diagnostic services, along with overhead line switches, railway electrification equipment, industrial electrical connectors, electric switchboards, distribution boards, and support services. Its transformers are used in power transmission and distribution, renewable energy including hydro, wind, and solar photovoltaics, transport and e-mobility, battery energy storage systems, industrial parks, data centers, buildings and infrastructure, and harbor electrification. The company serves the power distribution, renewables, and industrial sectors through the Rauscher and Stoecklin, Tesar, Kyte Powertech, and ZREW brands. It was formerly known as R&S International Holding AG and changed its name to R&S Group Holding AG in 2023, and is headquartered in Sissach, Switzerland.