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The Marshall Team

William Blair Private Wealth Management

Chicago skyline
  • Brian Marshall

    Brian Marshall

    Partner, Wealth Advisor

    +1 312 364 8109
    View profile
  • Jon Sackett

    Jon Sackett

    Wealth Advisor Associate

    +1 312 364 8433
    View profile
  • mattwilson

    Matthew J. Wilson

    Sales Associate

    +1 312 364 5157
    View profile
  • James Hammack

    James Hammack

    Client Relationship Associate

    +1 312 364 8773
    View profile

About William Blair

William Blair is a premier global partnership with expertise in investment banking, investment management, and private wealth management. We provide advisory services, strategies, and solutions to meet our clients’ evolving needs. As an independent and employee-owned firm, together with our strategic partners, we operate in more than 20 offices worldwide.*

  • 1935

    Year William Blair was founded

  • 1,900+

    Employees worldwide

  • 139 billion+

    Client assets

  • 90 Years

    Independent and employee-owned

  • 20+

    Offices worldwide

  • ~650

    Companies under coverage

As of March 31, 2025
*Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Capital Markets.

More about William Blair affiliated entities

Thought Leadership

  • Wednesday, March 26, 2025

    Your 2025 Tax Reference Guide

    Taxes don’t have to be taxing. Review William Blair’s tax reference guides so you’ll know exactly what to expect and how to prepare when you file your taxes.

    Read more
  • Woman at a computer
    Tuesday, November 19, 2024

    Risk: Understanding and Managing an Inevitable Part of Investing

    Identifying the various types of risk that investors face can help you think strategically about how to manage risk in a way that aligns with your goals and objectives.

    Read more
  • Thursday, September 5, 2024

    Financing a College Education: Options to Consider

    Tips for developing the best strategy while keeping your financial goals intact.

    Read more
See more thought leadership

Our Latest News

  • Wednesday, May 21, 2025

    Lifecore Biomedical, Inc.: Initiation of Research Coverage

    William Blair initiated research coverage of Lifecore Biomedical, Inc. (LFCR $6.71), a U.S.-based contract development and manufacturing organization (CDMO).

    Read more
  • Wednesday, May 21, 2025

    Primutec Solutions Group Has Agreed to be Acquired by Trill Impact

    William Blair acted as the exclusive financial advisor to Primutec Solutions Group B.V., owned by Funds advised by DPE Deutsche Private Equity Management and management, in connection with its pending sale to Funds managed by Trill Impact.

    Read more
  • Tuesday, May 20, 2025

    OneStream, Inc.: Initiation of Research Coverage

    William Blair initiated research coverage of OneStream, Inc. (OS $28.27), a fast-growing software platform modernizing the office of the CFO.

    Read more
See more news

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This content is for informational and educational purposes only and not intended as investment advice or a recommendation to buy or sell any security. Investment advice and recommendations can be provided only after careful consideration of an investor's objectives, guidelines, and restrictions.

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