Not Disclosed
a portfolio company of Apax Partners
has agreed to be acquired by
Pending
Supply Chain & Commercial Services
Sean Gardner
Managing Director, Financial Sponsors Group
About Sean
Sean Gardner is a partner and managing director for William Blair based in the firm’s New York office. Sean originates new business (across M&A, debt, and equity), proprietary ideas and maintains client relationships at middle market and large cap private equity clients. He also provides strategic advice to C-level management and corporate board members. He joined the investment banking team in 2015. Before William Blair, he worked for Credit Suisse, American Securities Capital, and Merrill Lynch.
Board Membership
Trustee, Treasurer, Finance Committee, Convent Ave. Baptist Church
Momentum Golf & Education
Notable Transactions
Not Disclosed
has made a strategic investment in
August 2026
Tech Enabled Services
Not Disclosed
a portfolio company of Broad Sky Partners
has received a strategic
investment from
July 2026
Tech Enabled Services
Not Disclosed
a portfolio company of Kohlberg & Company
has been acquired by
July 2026
Consumer Products & Services
William Blair served as financial advisor to DecoPac Inc., a portfolio company of Kohlberg & Company, in connection with its sale to Sentinel Capital Partners. The transaction closed in July 2026, and the terms were not disclosed.
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$1,000,000,003
Initial Public Offering
July 2026
Consumer Products & Services
Not Disclosed
a portfolio company of
Arlington Capital Partners
has been acquired by
July 2026
Industrial Growth Products
Not Disclosed
has made an investment in
January 2026
Technology
Not Disclosed
a portfolio company of SK Capital Partners and Edgewater Capital Partners
has been acquired by
a portfolio company of AEA Investors
January 2026
Industrial Growth Products
Not Disclosed
a portfolio company of
Goldman Sachs Private Equity
has been acquired by
December 2025
Technology
Not Disclosed
a portfolio company of EagleTree Capital
has been acquired by
a portfolio company of
The Riverside Company
December 2025
Tech Enabled Services
William Blair acted as financial advisor to Moss Inc., a portfolio company of EagleTree Capital, in connection with its sale to The Vomela Companies, a portfolio company of The Riverside Company.
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$462,500,000
a portfolio company of WCAS
Initial Public Offering
December 2025
Healthcare IT
Not Disclosed
has acquired
a portfolio company of Mainsail Partners
September 2025
Technology
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
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
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.*
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1935Year William Blair was founded
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2,100+Employees worldwide
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156 billion+Client assets
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90+ YearsIndependent and employee-owned
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30+Offices worldwide*
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700+Companies under coverage
As of June 30, 2026
*Includes strategic alliances with Allier Capital, BDA Partners, and Poalim Equity Ltd.