Fiat Aviazione was an Italian aircraft manufacturer, at one time part of the Fiat group, focused mainly on military aviation. After World War I, Fiat consolidated several Italian small aircraft manufacturers, like Pomilio and Ansaldo. Most famous were the Fiat biplane fighter aircraft of the 1930s, the Fiat CR.32 and the Fiat CR.42. Other notable designs were the fighters CR.20, G.50, G.55 and a bomber, the Fiat BR.20. In the 1950s, the company designed the G.91 light ground attack plane.

Fiat S.p.A., or Fabbrica Italiana Automobili Torino, was an Italian holding company whose original and core activities were in the automotive industry, and that was succeeded by Fiat Chrysler Automobiles NV (FCA). The Fiat Group contained many brands such as Ferrari, Maserati, Fiat, Alfa Romeo, the Chrysler Group, and many more. On 29 January 2014, it was announced that Fiat S.p.A. was to be merged into a new Netherlands-based holding company Fiat Chrysler Automobiles NV (FCA), taking place before the end of 2014. Fiat Chrysler Automobiles became the new owner of Fiat Group. On 1 August 2014, Fiat S.p.A. received necessary shareholder approval to proceed with the merger. The merger became effective 12 October 2014.