| Announced Date | Round | Money Raised | Number of Investors | Lead Investors | Post Valuation | |
|---|---|---|---|---|---|---|
| Aug 24, 2016 | Private Equity(PE) | $40M | 1 | — | — | Detail |
| Aug 5, 2016 | Private Equity(PE) | $220M | 3 | Warburg Pincus | — | Detail |
| Apr 27, 2016 | Debt Financing | $200M | 2 | — | — | Detail |
| Mar 13, 2014 | Series Unknown | $6.47M | — | — | — | Detail |
| Jan 8, 2014 | Grant | $1M | 1 | Verizon | — | Detail |
| Jul 29, 2013 | Series B | $15M | 5 | — | — | Detail |
| Jul 10, 2013 | Debt Financing | $450K | — | — | — | Detail |
| Jul 1, 2012 | Series A | $0.92M | 1 | — | — | Detail |
| Jun 13, 2012 | Grant | $2M | 1 | US Department of Energy | — | Detail |
| May 31, 2012 | Series A | $2.77M | 4 | Spring Ventures | — | Detail |
| May 14, 2012 | Seed | — | 1 | — | — | Detail |