| Investor Name | Invest Money | Lead Investor | Propotion |
|---|
| Announced Date | Round | Money Raised | Investors | |
|---|---|---|---|---|
| May 3, 2009 | Series B | $ 20M | Canaan Partners,Domain Associates,etc. | Detail |
| Jan 7, 2013 | Series C | $ 21M | Canaan Partners,Domain Associates,etc. | Detail |
| Oct 25, 2005 | Series A | $ 29.40M | Canaan Partners,Domain Associates,etc. | Detail |
| Dec 19, 2012 | Series Unknown | $ 11.43M | RMI Partners | Detail |