| Investor Name | Invest Money | Lead Investor | Propotion |
|---|
| Announced Date | Round | Money Raised | Investors | |
|---|---|---|---|---|
| Jun 30, 2011 | Series C | $ 20M | ARCH Venture Partners,Applied Ventures,etc. | Detail |
| Jan 28, 2012 | Series Unknown | $ 7.50M | ARCH Venture Partners,Intersouth Partners,etc. | Detail |
| 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 |
| Jun 29, 2015 | Debt Financing | $ 501.64K | Detail | |
| Jan 12, 2012 | Series C | $ 3M | Illinois Ventures,Morgan Creek Capital Management,etc. | Detail |
| Dec 17, 2013 | Debt Financing | $ 450K | Detail | |
| Sep 26, 2014 | Debt Financing | $ 1.29M | Detail | |
| Mar 4, 2015 | Debt Financing | $ 642.11K | Detail | |
| Aug 27, 2015 | Grant | $ 2.90M | ARPA-E | Detail |
| Sep 19, 2013 | Debt Financing | $ 250K | Detail | |
| Apr 4, 2013 | Debt Financing | $ 2.14M | Detail | |
| Jun 23, 2011 | Debt Financing | $ 2.66M | Detail | |
| Jan 21, 2010 | Grant | $ 8.16M | National Renewable Energy Laboratory | Detail |
| Jan 13, 2015 | Debt Financing | $ 1.69M | Detail | |
| Feb 18, 2014 | Debt Financing | $ 553.64K | Detail | |
| Apr 24, 2014 | Debt Financing | $ 1.10M | Detail |