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Stephano Slack Secures Strategic Investment for Growth
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Subscribe10 JUN 2026 / M&A UPDATES
Pennsylvania-based accounting firm Stephano Slack LLC has received a growth investment from Madison Dearborn Partners, bolstered by Norlantic Capital, to advance its growth strategy including talent acquisition, innovation, and service expansion. Veteran Jim Brady, with 45 years in the accounting profession, joins the leadership as executive chairman as Stephano Slack restructures into alternative practices to enhance service delivery and client engagement in a competitive market.
Stephano Slack LLC, a prominent accounting firm based in Wayne, Pennsylvania, has announced a strategic growth investment from Madison Dearborn Partners, with additional backing from Norlantic Capital. This investment is set to bolster the firm's growth strategy, focusing on talent acquisition, innovation, and expanding service offerings. Founded in 2004, Stephano Slack provides tax, audit, outsourced accounting, and advisory services to middle-market clients and was recently recognized as one of Accounting Today's Fastest-Growing Firms of 2026.
Under the continued leadership of CEO and Managing Partner Michael Stephano, the firm will maintain its current operational structure. Joining the leadership team is Jim Brady, former COO of Grant Thornton and a veteran with 45 years in the accounting profession, who will serve as executive chairman. Brady brings a wealth of experience in scaling professional services organizations, including a notable 30-year tenure with Deloitte.
The partnership with Madison Dearborn Partners is expected to drive new growth opportunities for Stephano Slack. Michael Stephano expressed confidence in the collaboration, highlighting the shared commitment to exceptional client service. Jim Brady also expressed enthusiasm about working with Stephano, emphasizing their shared operational experience and dedication to building talented teams.
Following the investment, Stephano Slack will operate under an alternative practice structure. Stephano Slack LLC will continue to provide attest services, while Stephano Slack Advisory LLC will handle tax, advisory, and other non-attest services. This strategic move aims to enhance the firm's service delivery and client engagement, positioning it for sustained success in the competitive accounting landscape.
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