 Major investors included George Kaiser Family Foundation, U.S. Venture Partners, CMEA Ventures, Redpoint Ventures, Virgin Green Fund, Madrone Capital Partners, RockPort Capital Partners, Argonaut Private Equity, Masdar and Artis Capital Management.In 2009, the company posted $100 million in revenue.It was estimated that its production and sales growth could lead to a market cap between $1.76 and 2 billion.