Ralph Mastrangelo, Principal and London Office Equity Sales Manager, joined William Blair in 1995 following several years in the United States Navy, and graduation from the University of Notre Dame in South Bend, Indiana in 1987. A salesman to the UK territory (1995-present), he began managing the London office in 2003 and has overseen successful expansion of the region, growing the business year in and year out in all market conditions.

Ralph lives in Hertfordshire with his wife and two children.