Palo Alto-based early stage venture capital firm to use funds to support existing portfolio companies at early growth stage PALO ALTO, Calif., December 6, 2018-- Costanoa Ventures, a boutique venture capital firm focused on early-stage technology startups solving real-world business problems, today announced it has closed its Opportunity Fund. The $75 million fund comes on the heels of Fund III, which closed in September 2017 and brings the total capital under management just under $600 million.