PORR AG is a construction company based in Vienna, Austria, founded in 1869. It operates in Austria, Germany, Poland, the Czech Republic, Italy, Romania, Switzerland, Serbia, Great Britain, Slovakia, Norway, Belgium, and internationally. Its services include building construction, civil engineering and infrastructure construction, environmental activities such as demolition and waste management, design and engineering services, and additional offerings including sealing, asphalt and concrete production, facility management, and steel construction.