GoDaddy was entirely bootstrapped before a large chunk of it was sold to private equity firms in 2011. The founder self-funded it based on a $MM sale of a previous company, though - so they're awfully nice boots to be strapped up by. :) As a result of being bootstrapped, the 2011 sale single-handedly put its founder, Bob Parsons, on the Forbes billionaires list: http://www.forbes.com/profile/bob-parsons/
I am pretty sure Parson's previous company, Parson's Technology, was boostrapped as well. He used, and apparently nearly lost, the millions he earned on that sale to fund GoDaddy until it was profitable.
In 2013 the company lost $199.88 million and in 2012 they lost $279 million .
http://techcrunch.com/2014/06/09/godaddy-files-for-100m-ipo/
(just a minor correction as I am not the biggest fan of GoDaddy)