Lilpop, Rau i Loewenstein ([ˈlilpɔp rau̯ i lɛvɛnʂtai̯n], often shortened to Lilpop or LRL) was a Polish engineering company. Established in 1818 as an iron foundry, with time it rose to become a large holding company specialising in iron and steel production, as well as all sorts of machinery and metal products.
The largest factory was in Warsaw. Between the 1860s and World War II the company was the largest Polish producer of machinery, cars, lorries and railway equipment.[1] The range of products designed and produced by Lilpop included train engines, rails, railway cars and equipment for railroads, automotive engines, license-built lorries (Chevrolet and Buick), steam turbines, electric appliances and many other types of machinery.
The main factory of Lilpop, Rau i Loewenstein in Warsaw was looted by the Germans during World War II and the buildings demolished. The company was not rebuilt after the war.