Managing Director, Financial Sponsors Group
Kathryn Cesari is a managing director for William Blair based in the firm’s Atlanta office. She joined the investment banking team in 2020. Prior to William Blair, she worked for Raymond James.
Emerging Leaders for Children’s Healthcare of Atlanta
Single-Asset Continuation Fund for
December 2025
William Blair acted as the exclusive financial advisor to Boyne Capital Partners in connection with the raising of its single-asset continuation fund to acquire Pilot Energy from BCM Fund I, LP and other shareholders.
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has acquired
December 2025
has been acquired by
a portfolio company of Wind Point Partners
December 2025
a portfolio company of
Blue Point Capital Partners
has been acquired by
December 2025
a portfolio company of Endeavour Capital
has received a majority
stake investment from
October 2025
William Blair acted as exclusive financial advisor to ENTEK Technology Holdings LLC, a portfolio company of Endeavour Capital, in connection with today’s announcement that I Squared Capital has agreed to acquire a majority equity interest in the company.
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a portfolio company of
Blue Point Capital Partners
has been acquired by
a portfolio company of New Mountain Capital
September 2025
a portfolio company of
Shoreline Equity Partners and Trivest
has been acquired by
August 2025
William Blair acted as the lead financial advisor to Pave America, Shoreline Equity Partners, and Trivest Partners, in connection with the Company’s sale to AEA Investors and British Columbia Investment Management Corporation.
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has made a strategic
investment in
a portfolio company of Serent Capital
August 2025
a portfolio company of Riata Capital Group
has been acquired by
July 2025
has merged with
a portfolio company of Thoma Bravo,
with a significant minority investment from
Bain Capital Tech Opportunities
and LLR Partners
March 2025
a portfolio company of
Lovell Minnick Partners
has been recapitalized by
March 2025
William Blair acted as financial advisor to Fortis Payment Systems in connection with its recapitalization by existing investor Lovell Minnick Partners and new investor Audax Group.
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Initial Public Offering
February 2025
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
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
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.*
Year William Blair was founded
Employees worldwide
Client assets
Independent and employee-owned
Offices worldwide
Companies under coverage
As of December 31, 2025
*Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Equity.
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