German diplomats award Henry Ford, center, with their nation's highest decoration for foreigners, the Grand Cross of the German Eagle, in July 1938.
Washingtonpost.com: Ford and GM Scrutinized for Alleged Nazi Collaboration
Top 10 American Companies that Aided the Nazis - Toptenz.net
American Nazi Party
A number of prominent and wealthy American businessmen helped to support fascist regimes in Europe from the 1920s through the 1940s. These people helped to support Francisco Franco during the Spanish Civil War of 1936, as well as Benito Mussolini, and Adolph Hitler.
Some of the primary and more famous Americans and companies that were involved with the fascist regimes of Europe are: William Randolph Hearst, Joseph Kennedy (JFK's father), Charles Lindbergh, John Rockefeller, Andrew Mellon (head of Alcoa, banker, and Secretary of Treasury), DuPont, General Motors, Standard Oil (now Exxon), Ford, ITT, Allen Dulles (later head of the CIA), Prescott Bush, National City Bank, and General Electric.
It should be noted that businessmen from many countries, including England and Australia, also worked with the fascist regimes of Europe prior to WWII. The fascist governments were involved in a high level of construction, production, and international business.
I.G. Farben, a German company, was the largest chemical manufacturing enterprise in the world during the early part of the 20th century. As such the company had many holdings in a variety of countries, including America. The American holdings of I.G. Farben included Bayer Co., General Aniline Works, Agfa Ansco, and Winthrop Chemical Company.
I.G. Farben was critical in the development of the German economy and war machine leading up to WWII. During this time I.G. Farben's international holdings along with its international business contracts with companies like Standard Oil, DuPont, Alcoa, and Dow Chemical were crucial in supplying the Nazi regime with the materials needed for war as well as financial support.