I don't think there's been such powerful organisations since the East India Company.
It's not clear that the East India Trading Company was less powerful than Google, but the issue of military power doesn't disprove the thesis.
If you want a better modern day example than Silicon Valley tech companies, look at Chiquita. They have had paid paramilitary forces committing murder to protect their interests during this millennium. Until PayPal is literally killing people in order to steal their money and property, you can't say that they are remotely similar.
This is not a defense of PayPal by the way; I dislike them for the same reason you do. But perspective is important.