Bill Theofillou serves as Chair of the Board of Directors at Akumin, a Stonepeak Capital portfolio company and the second-largest radiology services provider in the United States. Additionally, he is Chairman of twoday, a CVC Capital company specializing in digital transformation, data & AI, and IT consulting across Europe. Bill also sits on the Board of Directors for Blackstone’s Precision Medicine Group, a leader in high-science clinical trials and commercialization, and for Dyania Health, a healthcare AI company focused on accelerating patient matching through clinically interpretable NLP.

Over 15 years, Bill was founder and CEO of Axia Limited, a leading global strategy consulting firm with deep experience in Life Sciences, Health, and Consumer Goods. Clients included both global multinational companies and mid-market/PE portfolio companies. The firm grew rapidly and was sold to Accenture in 2015, serving as the platform for building Accenture Strategy.

Bill served as an Executive and Senior Managing Director at Accenture, holding several prominent global leadership roles within Accenture Strategy and sponsoring multiple acquisitions. Most recently, he built and led Accenture’s CEO Advisory practice, generating $6.3 billion in revenue and overseeing a worldwide team of 16,000. 

Bill studied Economics and Marketing at Babson College and participated in an executive education program at Harvard Business School.