Bill Stein
Executive Managing Director & Chief Investment Officer , Primary Digital Infrastructure
Speaker Profile
Bill Stein | Executive Managing Director & Chief Investment Officer, Primary Digital Infrastructure
Bill Stein is Executive Managing Director and Chief Investment Officer at Primary Digital Infrastructure, where he leads the firm’s investment strategy and oversees key relationships across the digital infrastructure ecosystem. With over two decades of industry leadership, Bill is widely recognized for his visionary role in shaping the modern data center landscape.
As former CEO of Digital Realty Trust (2014–2022), Bill oversaw the company’s transformation into a global platform for digital infrastructure, expanding its market capitalization from $700 million to $50 billion. Under his leadership, Digital Realty advanced its AI-readiness through strategic acquisitions, hyperscale development, and global interconnection services—establishing the critical foundations powering today’s AI and data-driven technologies.
Bill’s background spans private equity, real estate investment, and law, giving him a multidimensional perspective on the evolving infrastructure demands of AI. He holds a master’s degree from Carnegie Mellon University (with distinction) and a JD from the University of Pittsburgh.
