Compremum. 

Compremum S.A. engages in the manufacture and sale of windows and doors in Europe. The company operates through Joinery, Construction Services, Development Services, Railway Industry, and Renewable Energy Sources segments. It offers windows and doors of wood, wood aluminum and aluminum. The company also provides construction services including design of passive networks, execution of commissioned investment projects, construction of road infrastructure, construction of heating systems, and installations within the fiber optic infrastructure, as well as construction of external networks, sewage, water, gas, and teletech networks. In addition, it provides repair and modernization of passenger and freight cars, electric locomotives, and liquid fuel tanks; technical consultancy, and maintenance services for energy facilities, as well as design, preparation, and execution of installation infrastructure for the energy industry. The company was formerly known as Pozbud T&R Spolka Akcyjna. Compremum S.A. was founded in 1973 and is based in Poznan, Poland.