R&S Group Holding AG manufactures and supplies electrical infrastructure products in Switzerland, Italy, Poland, and the Middle East. It offers free-breathing transformers, cast-resin transformers, oil-immersed distribution transformers, instrument transformers, as well as power transformers, including step-up/step-down, rectifier, and furnace transformers. The company also provides maintenance, modernization, and diagnostic services. Its transformers are used in power transmission and distribution; renewables, including hydro, wind, and solar photovoltaic; transport and e-mobility; data centers; and construction and infrastructure applications. The company was formerly known as R&S International Holding AG and changed its name to R&S Group Holding AG in 2023. The company is headquartered in Sissach, Switzerland.