About Tom

For more than 30 years, Tom Marx has worked with high-net-worth investors, assisting them with their personal, retirement plan, trust, and corporate assets. As a wealth advisor with William Blair & Company’s Private Wealth Management group, Tom helps clients evaluate their investment needs and then assists them in managing their investment portfolios with an emphasis on discretionary management.

Tom is a member of William Blair’s PWM model portfolio committee after serving as its chair for more than twelve years. He joined the firm in 1995 after 10 years with Kidder Peabody. Before joining the securities industry, Tom practiced as a certified public accountant with KPMG Peat Marwick. His role there involved working extensively with and advising privately held companies and their key principals.

Drawing on his strong technical and financial experience, Tom uses William Blair’s proprietary research along with additional Wall Street research resources to screen investment opportunities. Analyzing qualitative and quantitative data, Tom looks for stocks that are reasonably valued and have a potential catalyst for growth that will ultimately add value to his clients’ portfolios.

Tom earned his M.B.A. with a specialization in finance from Northwestern University’s Kellogg Graduate School of Management and his B.S. in accountancy from the University of Illinois. He received his license as a certified public accountant in 1979 and was awarded the Elijah Watt Sells prize for outstanding performance on the CPA examination. Tom is married and has two children. He lives in Deerfield, Illinois, and is active in several community affairs.

Professional Recognition and Awards

  • Forbes Best-in-State Advisors 2021, 2022, 2023, 20241
  • Barron’s Top State-by-State Advisors in America, 2022, 2023, 20242

1 The Forbes ranking algorithm is based on industry experience, interviews, compliance records, assets under management, revenue and other criteria by SHOOK Research, LLC, which does not receive compensation from the advisors or their firms in exchange for placement on a ranking. Investment performance is not a criterion.

2 The ranking reflects the volume of assets overseen by the advisors and their teams, revenues generated for the firms, and the quality of the advisors’ practices.

About William Blair

William Blair is a premier global boutique 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.*

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As of December 31, 2023
*Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Capital Markets.

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