Headquartered in Glenside, Pa., Glasgow is a privately owned heavy and highway construction company. It operates in the states of Pennsylvania, Delaware and New Jersey. The company provides construction services for airports, parking lots, utilities, dams, nuclear power plants, shopping malls, steel mills, refineries, sanitary sewers and water mains. Glasgow owns and operates various asphalt plants and crushed stone quarries. Additionally, it runs clean fill reclamation facilities to provide various disposal services. The company also operates Barletta Materials & Construction and Lehigh Asphalt Paving & Construction. Glasgow maintains a location in King of Prussia, Pa., and has a team of more than 500 employees.