They are public companies. That is kind of the point. Very few companies can achieve that kind of scale and remain private. They are of course not the only comp

They are public companies. That is kind of the point. Very few companies can achieve that kind of scale and remain private. They are of course not the only companies that make acquisitions - compare ones with most cash and acquisition kings - but they provide a good barometer. The companies that have less cash are also less likely to make acquisitions of more than $100 million which still means it is hard for VCs to get the fund making exits they need.