Y Combinator hasn't always been transparent about the 630ish companies that have trained with Paul Graham and friends since he dreamt up the accelerator in 2005. And perhaps that's why it was so intriguing to see Graham reveal some juicy Y Combinator stats on Twitter last week.
It came through two data sets. The first, a tally of the number of companies sold for or valued at $40 million or more, and sorted by Y Combinator funding year. The second was the percentage of companies that reached that status, based on the total number of companies funded in the year.
