| Investor Name | Invest Money | Lead Investor | Propotion |
|---|
| Announced Date | Round | Money Raised | Investors | |
|---|---|---|---|---|
| Jun 9, 2009 | Series B | $ 6.40M | ARCH Venture Partners,GVC Venture Fund,etc. | Detail |
| Jul 16, 2007 | Series A | $ 4.10M | ARCH Venture Partners,Applied Ventures,etc. | Detail |
| Jan 21, 2010 | Grant | $ 8.16M | National Renewable Energy Laboratory | Detail |