Skanska AB engages in the project development and construction business. It operates through the following business segments: Construction, Residential Development, Commercial Property Development, and Infrastructure Development. The Construction segment builds and renovates buildings, industrial facilities, infrastructure, and residences. The Residential Development segment develops residential properties close to services, recreational facilities and good transport links. The Commercial Property Development segment focuses on healthy, green, and efficient offices and properties. The Infrastructure Development segment deals with public private partnership which engages in developing, financing, building, operating and maintaining public facilities such as large hospitals, schools, airports and highways. The company was founded by Rudolf Fredrik Berg in 1887 and is headquartered in Stockholm, Sweden.