That's a surprisingly low number, actually. The first SFP had 227 applications[1] and I assume it's grown since then. Based on nothing at all, I'll guess that

That's a surprisingly low number, actually. The first SFP had 227 applications[1] and I assume it's grown since then. Based on nothing at all, I'll guess that the average application has 2.35 founders, so that's 533 applicants. YC has been pretty explicit that they want applicants to participate here. [1] http://web.archive.org/web/20050414040411/ycombinator.com/sfpannounce.html