Stout Announces New Investment Partnership With Integrum Seeking to Continue Accelerated Growth Trajectory

CHICAGO, June 2, 2025 /PRNewswire/ -- Stout, a leading global advisory firm, announced today that it has entered into a new strategic partnership with Integrum Holdings LP ("Integrum"), a private investment firm focused on partnering with technology-enabled services companies in the financial and business services sectors. Funds advised by Integrum will invest alongside Stout's employee shareholders to support the firm's continued expansion objectives. As part of the transaction, Stout's management team will remain in place, and existing employee shareholders will retain a meaningful equity stake. The transaction is expected to close in the third quarter of 2025 subject to customary closing conditions.

This new partnership follows a successful and highly collaborative relationship with Audax Private Equity ("Audax"), which first invested in Stout in November 2021 through its Flagship strategy. Over the course of the partnership, Audax provided strategic and financial support that enabled Stout to expand its platform, double headcount, complete ten acquisitions, and accelerate its growth across geographies and service lines.

"We are deeply grateful to Audax for their partnership and support over the past three and a half years," said Craige Stout, Chief Executive Officer of Stout. "They have been instrumental in helping us further scale our business, and we are proud of what we accomplished together. As we look ahead, we are thrilled to welcome Integrum, whose team brings experience, insight, and common values that align perfectly with our ambitions for the future."

Jeff Risius, Co-Head of Client Service at Stout, added, "This is a natural next step for Stout. Integrum's long-term mindset, strategic expertise, and focus on people and culture make them the ideal partner for our next phase of growth."

Tagar Olson, Founding Partner at Integrum, said, "Stout is a global firm with a reputation for excellence, a strong leadership team, and a clear growth trajectory. We are excited to support their continued expansion and to partner with a firm so deeply committed to client success and employee ownership."

Bill Allen, Managing Director at Audax and Head of the firm's Financial Services specialization, commented, "It has been a privilege to partner with the outstanding team at Stout. Over the past several years, we have watched the firm grow significantly in scale, capability, and market presence, all while staying true to its culture of 'Relentless Excellence^®'. We are confident that Stout is well-positioned for continued success. We wish Craige, Jeff, and the entire Stout team the very best as they begin this exciting next chapter with Integrum."

William Blair & Company acted as financial advisor and Winston & Strawn LLP and Ropes and Gray LLP served as legal counsel to Stout.

Simpson Thacher & Bartlett LLP served as legal counsel to Integrum.

About Stout
Stout is a global advisory firm specializing in corporate finance, accounting and transaction advisory, valuation, and financial disputes, claims, and investigations. Stout serves a range of clients, from public corporations to privately held companies in numerous industries. 
Our clients and their advisors rely on our premier expertise, deep industry knowledge, and unparalleled responsiveness on complex matters.

Stout is a trade name for Stout Risius Ross, LLC, Stout Advisors SA, Stout Bluepeak Asia Ltd., Stout GmbH, MB e Associati S.r.l., Stout Park Ltd, and Stout Capital, LLC, a FINRA- registered broker-dealer and SIPC member firm.

Learn more at stout.com.

About Integrum
Integrum is an investment firm focused on partnering with technology-enabled services companies in the financial and business services sectors. The firm was founded by a team of proven leaders with a vision to build a different type of investing platform benefiting from their diverse and complementary backgrounds and vast relationship network.
Integrum's approach is to build a concentrated portfolio of high-conviction investments. Integrum aims to accelerate growth through investments in technology and other forms of innovation and by partnering with management teams to enhance access to talent, relationships, and capabilities.

Learn more at integrum.us.

About Audax Private Equity
Headquartered in Boston, with offices in San Francisco, New York, London and Hong Kong, Audax Private Equity manages three strategies: its Flagship and Origins private equity strategies, seeking control buyouts in the core middle and lower middle markets, respectively, and its Strategic Capital strategy that provides customized equity solutions to PE-backed portfolio companies to help drive continued growth. With approximately $19 billion of assets under management as of March 2025, over 290 employees, and 100-plus investment professionals, Audax has invested in 175 platforms and 1,350 add-on acquisitions since its founding in 1999. Through our disciplined Buy & Build approach, across six core industry verticals, Audax seeks to help portfolio companies execute organic and inorganic growth initiatives with the aim of fueling revenue expansion, optimizing operations, and significantly increasing equity value. For more information, visit audaxprivateequity.com or follow us on LinkedIn.

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