Lots of non-technology companies.
Out of tech companies -- Craigslist, Atlassian, 37Signals, possibly MailChimp.
Fringe examples -- Indeed sold for $1B and only took a small amount of later-stage funding [1] from USV. WhatsApp took $8M from Sequoia but apparently didn't spend any of it [2].
[1] http://avc.com/2012/09/indeed/
[2] http://forbesindia.com/article/the-worlds-billionaires/the-$...