CEO
MLR Holdings
Bill Rock is the CEO of MLR Holdings, which owns media and B2B information businesses, including MLR Media. Through digital platforms, membership communities, live events and magazines, including Directors & Boards, Private Company Director, FO Pro, and Family Business, MLR Media provides public and private company directors, leaders and owners of multi-generational family businesses and family offices, and C-suite executives with the knowledge and tools to be successful in their roles.
Under Bill’s leadership, MLR Holdings owned Uptime Institute, the global leader in data center certifications and services, until 2022, when it was acquired by Dominus Capital and 451 Research, a leading provider of business intelligence and market data for the technology markets, until 2019, when it was acquired by S&P Global (NYSE: SPGI). Uptime Institute has awarded over 3,500 certifications, accredited over 10,000 highly specialized technical experts and provided advisory services in over 100 countries. 451 Research generates the data-driven insight that empowers technology and service providers, IT leaders, and financial professionals to capitalize on their market opportunity.
Bill is an independent board member of Day & Zimmermann, a century-old, multi-billion-dollar company specializing in construction & engineering, operations & maintenance, staffing, security and defense for leading corporations and governments around the world. Day & Zimmermann employs over 50,000 people in over 150 worldwide locations. Bill is also a member of YPO, where he was Chair of the Philadelphia Chapter, a member of the boards of trustees of TJUH System and Thomas Jefferson University Hospitals, a member of Thomas Jefferson University’s Academic Affairs Committee, and a member of the advisory board of the John L. Weinberg Center for Corporate Governance at the University of Delaware.
Prior to joining MLR Holdings, Bill was a management consultant. He received his B.A. from Harvard University, his M.B.A. from the Wharton School of the University of Pennsylvania, and his J.D. from the University of Pennsylvania Law School.