First: you've heard of at least one of these companies. Second: some of them are very well known in their vertical, just not yet household names. Third: you h

First: you've heard of at least one of these companies. Second: some of them are very well known in their vertical, just not yet household names. Third: you have no idea what you're talking about. E.g. Hubspot was founded in 2006, I guarantee nobody here who isn't a marketer had heard of them in 2011.