William Blair at a Glance


  • “Strong, positive culture; smart, committed, caring colleagues”
  • “Incredible learning experience—great training and skill development, and lean deal teams mean junior bankers get plenty of responsibility”
  • “Close senior banker and client interaction early on”


  • “Long hours”
  • “Bureaucracy”
  • “Growing pains of scaling an organization”

The Buzz

  • “Strong in the middle market”
  • “Okay”
  • “Traditional”
  • “Not well known”

About William Blair

William Blair's investment banking group enables corporations, financial sponsors, owner/entrepreneurs, and governments around the world to achieve their growth, liquidity, and financing objectives. Drawing on the collective intellectual capital and sector expertise of a global team, the investment banking group provides advice and services on corporate board advisory projects, mergers and acquisitions, and equity and debt financings. Since 2012, the firm has completed over 1,000 investment banking transactions worth more than $275 billion. Thirty percent of those transactions were cross-border M&A transactions, and 60 percent were with repeat clients. 

William Blair regularly receives M&A accolades and awards. In 2017, the firm won two "Deal of the Year" awards from Mergers & Acquisitions, and one of its bankers was named by the magazine as one of the "Most Influential Women in Mid-Market M&A" for the second year in a row. In 2016, the firm was awarded "M&A Deal of the Year" by Buyouts magazine. And in 2015, William Blair received "M&A Deal of the Year," "Corporate and Strategic Acquisition of the Year," and "Cross-border Deal of the Year" from M&A Advisor, as well as "Americas Investment Bank of the Year" and "Investment Bank of the Year" honors from M&A Atlas

William Blair is led by CEO John Ettelson, and of the firm's 1,400 employees, approximately 190 are partners.

William Blair

The William Blair Building
150 North Riverside Plaza
Chicago, IL 60606
Phone: (312) 236-1600


  • Employer Type: Private
  • President & CEO: John R. Ettelson
  • 2017 Employees: 1,400

Major Office Locations

  • Boston, MA
  • Chicago, IL
  • Frankfurt, Germany
  • London, United Kingdom
  • New York, NY
  • San Francisco, CA
  • São Paulo, Brazil
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