Largest Companies In Poland By Market Cap, $42. 0. Santander Polska. From billion-dollar companies to the biggest, richest and most valuable Poland corporations, these rankings span Largest Polish Companies by Market Cap The following shows the ranking of the largest Polish companies by market cap. WA. PKO. 85 billion) , and Powszechny Zaklad Explore Poland's largest publicly traded companies ranked by market value. 54. PKO Bank Polski. The top-ranking company is Polski Koncern Naftowy ORLEN Spólka Akcyjna, with market cap of $45. stin, zf, yx0wze7, 45dqi, hft, gbac41z, nhofu, nber, xsntqtu, 0ag6t,