The Week in Cleantech: Aug 18 – 25

The week featured several new interesting company relationships, private equity buyouts, and acquisitions, but venture capital news stole the show:

Ambiq Micro raised $10 million in a Series B round led by new investor Austin Ventures. The company indicated it would use this financing to expand its SPOT™ (Subthreshold Power Optimized Technology) design platform, accelerate new product development and expand worldwide market presence. Existing investors Huron River Ventures, ARM, and Mercury Fund also participated in the round.

Biofuels & Biochemicals company Joule announced $50 million in new, unattributed investment concurrent with its CEO, Bill Sims, stepping down. Sims will remain on the company’s board, and co-founder and chairman Noubar Afeyan from Flagship Ventures is stepping in as interim CEO. Joule raised $70 million in its last growth equity round in January, 2012 from several new, undisclosed investors. Flagship Ventures has backed the company since 2009.

Efficient homes company GreenWave Reality raised $11.3 million in a growth round from existing investor Craton Equity Partners. The addition of Dr. Paramesh Gopi as a new Director in the disclosed regulatory filing suggests that AppliedMicro also participated in the round.

Silver Lake disclosed via a regulatory filing that it had closed on just over $650 million of its planned $750 million clean energy-focused Silver Lake Kraftwerk fund. The firm had disclosed an interim close of $300 million back in July , 2012.

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