The ones at the very top -- Facebook, Google, Apple, Microsoft, Amazon -- are profitable. There's been a good number of big hyped names and decade+ "startups" t

The ones at the very top -- Facebook, Google, Apple, Microsoft, Amazon -- are profitable. There's been a good number of big hyped names and decade+ "startups" that might have a lot of revenue but don't have much if anything left over in the net column. (Uber most famously.)