About Investment Management at William Blair

William Blair is committed to building enduring relationships with our clients and providing expertise and solutions to meet their evolving needs. We work closely with the most sophisticated investors globally across institutional and intermediary channels. We are 100% active-employee-owned with broad-based ownership. Our investment teams are solely focused on active management and employ disciplined, analytical research processes across a wide range of strategies. As of December 31, 2021, we manage $79.6 billion in assets. We are based in Chicago with resources in New York, London, Zurich, Sydney, The Hague, and Singapore1 and dedicated coverage for Canada.

Firm Highlights

  • Fundamentally driven approach to actively managed investing
  • Experienced, long-tenured investment professionals
  • Independent and employee-owned firm

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ESG Integration Philosophy

At William Blair, we consider environmental, social, and corporate governance (ESG) to be one of many considerations that inform our investment decisions.

Learn more about our ESG integration philosophy

Read an overview on ESG investing and portfolio integration
Learn more about our Corporate Social Responsibility Overview



Contact Us

To learn more about William Blair, you may want to visit our corporate website.


As referenced above, "William Blair" refers to William Blair Investment Management, LLC.

1William Blair International (Singapore) Pte. Ltd. is regulated by the Monetary Authority of Singapore under a Capital Markets Services License to conduct fund management activities.