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Brandon Lower

Brandon Lower

Managing Director, Head of Financial Sponsors Group

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About Brandon

Brandon Lower, partner, is a managing director and head of William Blair’s Financial Sponsors Coverage group. Brandon leads a team focused on providing financial sponsors with highly-relevant and differentiated strategic advice, including a full-suite of M&A, capital markets, and GP-advisory solutions. Brandon draws on extensive M&A experience, as well as public and private equity transaction experience, having completed more than 200 transactions.

Brandon is based in the firm’s New York office. He originally joined William Blair’s investment banking team in 1997 and rejoined in 2000. Brandon previously worked for Bowles Hollowell Conner & Co. and Dean Witter Reynolds.

Awards and Affiliations

M&A Advisor - 2012 40 Under 40 M&A Advisor Award

Notable Transactions

  • $3,075,000,000

    Follow-on Offering

    March 2026

  • $7,204,749,966

    Initial Public Offering

    December 2025

  • $1,300,000,000

    have acquired

    December 2025

  • Not Disclosed

    a portfolio company of Berkshire Partners

    has received a significant
    minority investment from

    October 2025

  • Not Disclosed

    a portfolio company of Francisco Partners

    has received a strategic growth investment from

    May 2025

  • Not Disclosed

    has acquired

    December 2024

    William Blair acted as financial advisor to OMERS Private Equity in connection with its acquisition of Integris.

    Read more
  • Not Disclosed

    a portfolio company of AEA Investors

    has been acquired by

    a portfolio company of
    Arcline Investment Management

    November 2024

    William Blair acted as financial advisor to Process Sensing Technologies, a portfolio company of AEA Investors, in connection with its sale to DwyerOmega, a portfolio company of Arcline Investment Management.

    Read more
  • Not Disclosed

    a portfolio company of
    New Mountain Capital

    has received a strategic
    minority investment from

    November 2024

  • Not Disclosed

    a portfolio company of Harvest Partners

    has received a growth
    investment from

    August 2024

    William Blair acted as financial advisor to Service Express, a portfolio company of Harvest Partners, in connection with its growth investment from Warburg Pincus.

    Read more
  • Not Disclosed

    has received a
    strategic investment from

    June 2024

  • Not Disclosed

    a portfolio company of Stone Point Capital

    has been acquired by

    April 2024

  • $1,860,000,000

    a portfolio company of
    Warburg Pincus and TA Associates

    has been acquired by

    February 2024

  • Rigorous pursuit of your success. Every transaction. Every time.

    Our investment bankers are 100 percent committed to your organization’s sustained success. By drawing on our deep industry and product experience as well as our dedicated global resources, we provide advisory and financing services that allow you to capitalize on today’s opportunities and anticipate tomorrow’s challenges.

    More about investment banking at William Blair
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    Financial Sponsors

    William Blair's Financial Sponsors Group is focused on developing and institutionalizing relationships with leading private equity firms around the world. Many of these relationships have been developed for over two decades providing us with senior-level access and credibility with the key decision-makers at each private equity firm. With over 295 successful sales to financial sponsors since 2015, we have proprietary insights into each financial sponsor's unique investment criteria, approach, and behavior. Our team's highly-relevant experience with and relevance to the private equity community uniquely positions William Blair to deliver exceptional results for our M&A sell-side clients.

    More about our financial sponsors expertise
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    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 30 offices worldwide.*

    • 1935

      Year William Blair was founded

    • 1,950+

      Employees worldwide

    • 145 billion+

      Client assets

    • 90+ Years

      Independent and employee-owned

    • 30+

      Offices worldwide*

    • 700+

      Companies under coverage

    As of March 31, 2026
    *Includes strategic alliances with Allier Capital, BDA Partners, and Poalim Equity Ltd.

    More about William Blair affiliated entities

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