While saying any nationstate might be hyperbole, it's fair to say they surpass all but the richest.

The most recent figures I can find for Amazon's operating budget list it at well over $500B, which puts it within an order of magnitude of the single richest country in the world; it would end up in the top 10 if it were itself a country[1]

Keep in mind also that a large part of the US's wealth is derived from having these nation-state-level corporations within its financial jurisdiction.

[1] https://en.wikipedia.org/wiki/List_of_countries_by_governmen...