Ronnie Barnes, who heads Cornerstone’s International Arbitration and Litigation practice, highlighted that Williams’s cross-disciplinary experience provides clients with both rigorous analysis and strategic clarity. Williams brings a diverse career history to the role, having served as a consultant, educator, and expert witness across Europe, North America, and South America. His expertise covers sectors ranging from energy and mining to telecommunications and utilities.
In section Releases
Dr. Ryan Williams Joins Cornerstone Research as London Principal
Dr. Ryan Williams, a valuation expert with a background spanning academia, industry, and the UK regulatory system, has joined Cornerstone Research as a principal in London. His appointment aims to bolster the firm’s capabilities in international arbitration, valuation, and competition analysis for complex global disputes.

Beyond his consulting practice, Williams maintains a significant presence in the UK regulatory landscape as a non-executive director of the Regulatory Policy Committee. In this capacity, he evaluates the economic impact of proposed legislation with a specific focus on artificial intelligence. His academic background includes a research fellowship at Imperial College Business School’s Centre for Climate Finance and Investment, alongside tenured professorships at the Université Paris Dauphine-PSL and the University of Arizona. He holds a Ph.D. from Georgia State University.
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