Not quite in that range -- but Veeva Systems took a single, $4M round[0] and went public. Current market cap is $5.2B (and was about 15% higher immediately after their IPO). The founder's shares were worth north of $500M at that time. [1]

[0] https://www.crunchbase.com/organization/veeva#/entity [1] http://www.forbes.com/sites/alexmorrell/2013/10/19/who-got-r...

Not on the same scale, but I remember reading an article a while back that compared the sales of TechCrunch & the Huffington Post. IIRC the founder of TechCrunch retained majority ownership so he made more than Arianna despite the Huffington Post selling for 10x as much.

You could run this query crudely on CrunchBase, I think on the free dev tier.