Investment Vehicles and Who We Serve

At William Blair, we are passionate about the profession of investment management. We are an independent, 100% active employee-owned firm with no distractions from our sole priority: creating strong, risk-adjusted returns for our clients.

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About us

Over Eighty Years as an Independent Investment Firm

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 March 31, 2020, we manage $46.6 billion in assets. We are based in Chicago with resources in New York, London, Zurich, Sydney, Stockholm, and The Hague, and dedicated coverage for Canada.



William Blair offers a number of investment vehicles, including separate accounts, mutual funds, CITs, and SICAVs.
Who We Serve

Who We Serve

We provide investment solutions to corporations, pension funds, governments and public agencies, endowments, foundations, Taft-Hartley plans, and other leading institutional investors across the globe.

Our Capabilities

We are passionate about the profession of investment management. Learn more about our structure, culture, strategies, and investment processes.


Learn more about William Blair Investment Management's awards and recognitions.

ESG Integration

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


In response to Europe’s MiFID II Directive, we plan to absorb external research costs for all our clients globally.

We are passionate about the profession of investment management.
Learn more about us