Though Breaking Energy’s Top Fives series has come to a close, the desire to recognize the leaders in the energy business is still strong. For many, that is because the financial opportunities available in these companies could be expensive to miss.

Business development agency Grow-California has chosen 40 clean technology companies — from smart meter groups and waste management companies to biofuel firms and solar start ups — as top innovators in the industry. With budgets tightening and the future of incentive and loan guarantee programs unclear, it may be only the best and the brightest that make it through the upcoming years of likely consolidation in the sector. Keep reading →