Venrock is a leading venture capital firm with offices in Palo Alto, CA; New York, NY; and Cambridge, MA. Originally established as the venture capital arm of the Rockefeller family, Venrock continues an eight-decade tradition of partnering with entrepreneurs to establish successful, enduring companies. With a primary focus on technology, healthcare, and energy, current portfolio companies in the energy sector include Atieva, OnChip Power, Phononic Devices, Sapphire Energy and Transonic Combustion. For more information, please visit Venrockā€™s website at and follow the firm on Twitter at @venrock.