It's worth noting that the nazis were probably not very kind to company owners and employees who refused to heil. It's easy to be virtuous 80 years later on social media without ever living in a totalitarian society.
Also, a lot of German companies from that time that are still around are very much aware about their past and don’t shy away about acknowledging their role if it comes up. Naturally not very proudly so.
Genocide of “undesirables,” forced labor camps, endless wars of conquest, human experimentation, etc. Being completely untethered to humanity and allowed to do anything for a price is the ultracapitalist dream.
People like to pick on German companies for this, but the truth of the matter is that finding a company not involved in an era of ultra-nationalism is going to be rare. That's kind of a big part of how ultra-nationalism works.