Europeanization of national law – including corporate law – is a complex phenomenon, aimed at obtaining coherent solutions at supranational level of legislation and practice. Changing economic and legal factors, as well as an ambivalent evaluation of effectiveness of traditional methods of harmonization, influence the tendencies in terms of methods and directions of company law. The Author attempts to identify the causes of this state of matters and to critically analyze the methods of europeanization of company law in the EU on the example of Polish corporate law.