William Blair Employee Directory
Financial ServicesIllinois, United States1001-5000 Employees
William Blair has about 2.6K employees across 2 continents, most of them in North America. By country, the largest groups are United States Of America (90%) and United Kingdom Of Great Britain And Northern Ireland (7%). Banking and Finance make up over half of the profiles with a known department. William Blair's workforce spans 30 departments. William Blair's workforce fell 6% between July 2025 and July 2026.