John M. Jack

John M. Jack is a seasoned venture capital professional with extensive experience in the technology sector. Currently serving as a Board Partner at Andreessen Horowitz since October 2012, John plays a pivotal role in supporting new technology companies. In addition, John is a Principal at Castle Peak Group, facilitating growth for venture-backed startups. As a CEO Partner at Harmonic Growth Partners and a Venture Partner at Shield Capital, John invests in and guides innovative tech firms. Furthermore, John holds multiple board positions, including at Illumio, Contrast Security, and Aravo Solutions, where expertise in security and risk management is leveraged. John's entrepreneurial spirit was exemplified through the founding of Coconut Cay Cocktail Company. Educational credentials include a BS in Finance from the University of California, Berkeley.