So a few things: It seems obvious that some types of companies (like entreprise) that have been started in 2010 are not going to be valued at >$1b yet. It take

So a few things: It seems obvious that some types of companies (like entreprise) that have been started in 2010 are not going to be valued at >$1b yet. It takes time. This information would probably be more valuable if you cut it up by area (consumer v entreprise etc) and did comparables inside those areas. "Started since 2003 and valued at $1b or over by public OR private markets" To me, those are completely separate ways of valuing a company - one is realized (in that anyone who owns shares outright can sell them for the value stated) and the other is purely speculative. It doesn't matter that Fab is "worth $1b" especially as it heads towards the toilet bowl over the last 10 months. Again, companies valued at >$1b on private is an interesting group to look at, but trying to compare it to public doesn't strike me as very useful. The one thing this article does is tell me that it's hard to hit $1b realized or unrealized. But I don't think anyone thought otherwise, no?