Brook Porter joined Kleiner Perkins Caufield & Byers in 2010 and is a partner in KPCB’s Green Growth Fund (GGF), supporting young companies leading new markets in sustainable ways. Focused on multi-stage investments at the nexus of sustainability and technology disruption, Brook works closely with entrepreneurs and serves as a board director, observer and/or advisor for Amprius, Amyris (Nasdaq: AMRS, 2010), Bloom Energy, Kaiima, BlueOak, Elcomax, Luxvue (acquired 2014), Orcan, Renmatix, and Siluria.

A serial entrepreneur, Brook brought more than a decade of renewable energy expertise to KPCB. Over the course of eight years, he co-founded two alternative fuel companies: Intelligent Energy, a hydrogen fuel cell technology company acquired by UK-based Intelligent Energy, and Primafuel, a biofuels solutions provider, now a subsidiary of Edeniq. During his time at Primafuel, Brook led all aspects of engineering and operations and played a critical role in multiple financings for the company. Brook was a co-developer of the ENV Fuel Cell Motorcycle, recognized by TIME magazine and Popular Science as one of the best inventions of 2005.

Brook studied chemical engineering at the UC Berkeley, with an emphasis in environmental technology. He is named on multiple U.S. and international patents in the field of renewable energy, including energy conversion and catalysis.