William Bitsky

William Bitsky is a Partner at Andreessen Horowitz based in New York, New York, USA, where he currently supports the venture capital firm's American Dynamism investment team. Prior to his current position, he served as an Investor at FirstMark Capital, evaluating early-stage venture opportunities across the broader technology sector. During his tenure at FirstMark Capital, his primary investment scope encompassed the consumer internet, enterprise software, and financial technology market verticals. In this previous capacity, he participated in structuring and executing venture capital transactions with initial investment sizes starting at approximately $250,000. He has built a professional career specializing in early-stage technology investments, successfully transitioning from traditional software sectors to his current strategic mandate. Today, his primary focus centers on identifying and funding technology startups that address critical national interests through the a16z American Dynamism initiative.