PZL was the largest Polish aerospace manufacturer of the interwar period, and a brand of their aircraft. Based in Warsaw between 1928 and 1939, PZL introduced a variety of well-regarded aircraft, most

PZL Mielec, formerly WSK-Mielec and WSK "PZL-Mielec" is a Polish aerospace manufacturer based in Mielec. It is the largest aerospace manufacturer in postwar Poland. In 2007, it was acquired by Sikorsk