YIT Oyj provides construction services for industrial and public sectors, and residential customers primarily in Finland, Sweden, Norway, Russia, the Czech Republic, Slovakia, Poland, Baltic countries, and internationally. The company operates through five segments: Housing Finland and CEE, Housing Russia, Business Premises, Infrastructure, and Partnership Properties. It develops and builds apartments and residential areas, as well as provides real estate property management, maintenance, and living services; develops wind power plants; and constructs office, commercial, business, logistics and industrial, and public buildings, such as hospitals, schools, and multi-purpose buildings. The company also undertakes pipe renovation works for housing companies; builds roads, bridges, railway and metro stations, and ports and parking facilities, as well as energy, water supply, and industrial plants; maintains roads, streets, and green areas; and offers tunnel quarrying, mining, and reinforcement services. In addition, it provides property development services. The company was founded in 1912 and is headquartered in Helsinki, Finland.