Not the 20 best known, the 150 best known. I'd wager if you went 500 deep, you'd see the age being much closer to 30 than 45. The criteria of this study isn't

Not the 20 best known, the 150 best known. I'd wager if you went 500 deep, you'd see the age being much closer to 30 than 45. The criteria of this study isn't bad, but I'd much rather just see a list of companies they're defining as startups. Is there a big biotech contingent? Are consulting companies included? B2B vs. B2C? Inc. Magazine published a list of the 500 fastest growing companies every year, and there's very little overlap between that list and what we'd consider the world of tech startups. This methodology feels more like Inc.