Compremum S.A. engages in the manufacture and sale of windows and doors in Europe. 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 of optic infrastructure. 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 implementation of installation infrastructure for the energy industry; and implementation of development projects. The company was formerly known as Pozbud T&R Spolka Akcyjna. Compremum S.A. was founded in 1973 and is based in Poznan, Poland.