No, all I've come up with googling 'progressive tax for companies' are textbook explanations why it is not 'fair' to do this. Presumably it wouldn't be fair to

No, all I've come up with googling 'progressive tax for companies' are textbook explanations why it is not 'fair' to do this. Presumably it wouldn't be fair to tax a company with revenue more than a highly valued startup. Fairness is too ambiguous a term I think to determine policy. Besides that, there are other monetary features to apply a progressive tax on.