West Monroe appoints Gil Mermelstein as CEO
West Monroe, a Chicago-headquartered management consulting firm, has appointed Gil Mermelstein as chief executive officer, effective July 1, 2025.
Mermelstein succeeds Kevin McCarty, who co-founded the firm in 2002. McCarty has served as CEO since 2014 and as chairman of the board since 2020, overseeing 10 acquisitions as well as the sale of 50% of the firm to BDT & MSD Partners in 2021.
McCarty will continue to lead the board as executive chairman and will continue to oversee West Monroe Capital, the firm’s co-investment arm for private equity funds.
“This thoughtful succession underscores our firm's mission to build the next generation of leaders," McCarty said. "I have tremendous respect and confidence in Gil, our entire leadership team, and the future of West Monroe."
Mermelstein is based in New York and has over 30 years of consulting and financial services experience. He has been at West Monroe since 2010, joining the firm as a senior managing director to launch the New York office.
Mermelstein is currently the firm’s president, and previously served as chief operating officer, head of the financial services practice, head of the East Coast region, and head of New York.
Before joining West Monroe, Mermelstein was a partner at BearingPoint, SVP for strategy and business transformation at MBNA, and a senior manager at Kearney.
He holds an MBA from INSEAD and a bachelor’s degree from the University of Maryland.
“It's an honor to serve as the next CEO of West Monroe, which has a unique employee ownership culture and a compelling value creation proposition for clients," Mermelstein said. "What excites me most is the opportunity to lead a firm built on the rare ability to connect deep technology expertise with real and significant business outcomes.”
West Monroe also recently appointed Tanya Moore as chief people officer, Dan Freiman as chief financial officer, and Kamau Coar as general counsel.
The firm has 2,250 people across 11 offices in the US, Costa Rica, and the UK. West Monroe’s practices include business operations, M&A, organization and people, customer engagement, product and experiences, and data and technology.
