Wallenstam AB (publ) develops, builds, manages, and sells residential and commercial properties for people and companies in Gothenburg and Stockholm, Sweden. The company's property portfolio comprises approximately 230 properties, including 11,400 apartments and 1,000 commercial tenants. It also owns and operates 66 wind turbines with a total installed output of 143 megawatts. The company was founded in 1944 and is headquartered in Gothenburg, Sweden.