Yes and no, my grandfather was later even on the Board of Directors of IG Farben. There were US based American companies (can't remember the name right now) that had been contracted to build submarines for NAZI Germany, same goes for aircraft engines and similar equipment. Even in those day's a US company needed government approval to sign such deals. AFAIK those deals only were halted in 1940 or 1941.
One can say in general, that the US industry and the US government were heavily involved towards participating during NAZI Germany's economic rise. The German industry owners weren't the only ones betting onto a huge re-militarization effort by the NAZI's. As such the political and repressive NAZI policy in Germany didn't really matter to the US government or US companies. Only the outbreak of the war caused a change in diverting US production capacity from a then rather small German market outlook (profit) to an existing huge UK and Russia market.
Hitler's personal admiration for the anti-Semitism of Henry Ford were known.
e.g. quite interesting - especially the suing part of Ford and GM towards the US government after the war, for Allied bombing damages onto it's German plants !!!
The Ford Motor Company's commercial-free sponsorship of NBC's airing of "Schindler's List," the epic movie about the Holocaust, was a class act. Nevertheless, it would be remiss of us here at CorpWatch, not to point out Ford's contribution to Nazi war efforts.
www.corpwatch.org
After the cessation of hostilities, GM and Ford demanded reparations from the U.S. Government for wartime damages sustained by their Axis facilities as a result of Allied bombing... Ford received a little less than $1 million, primarily as a result of damages sustained by its military truck complex at Cologne...
The outbreak of war in September 1939 resulted inevitably in the full conversion by GM and Ford of their Axis plants to the production of military aircraft and trucks.... On the ground, GM and Ford subsidiaries built nearly 90 percent of the armored "mule" 3-ton half-trucks and more than 70 percent of the Reich's medium and heavy-duty trucks. These vehicles, according to American intelligence reports, served as "the backbone of the German Army transportation system."....
GM's plants in Germany built thousands of bomber and jet fighter propulsion systems for the Luftwaffe at the same time that its American plants produced aircraft engines for the U.S. Army Air Corps....