| Investor Name | Invest Money | Lead Investor | Propotion |
|---|
| Announced Date | Round | Money Raised | Investors | |
|---|---|---|---|---|
| Jul 1, 2006 | Series B | $ 25M | PAR Capital Management | Detail |
| Sep 1, 2007 | Series C | $ 30M | Benchmark,Legg Mason,etc. | Detail |
| Oct 1, 2005 | Series A | $ 32M | Benchmark,TCV | Detail |
| Jul 20, 2011 | IPO | $ 69M | Detail |