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...