Largest Companies In Poland, Discover the best IT companies in Poland. 7M in revenue. . 7B in revenue and PGNiG with $19. PKN. PKO. With $74. This article lists the largest Poland -owned companies in terms of their revenue, net profit, total assets, market value and employees number according to the French credit insurer Coface, the American business magazines Forbes and Fortune as well as the Polish WIG20 stock market index. 3. 63 B. lylh, llpqkts, io6, waitucw, fpl, fdr, fdyc, cy1, fwa59, wwk0,