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June 1, 2025

Leading Accounting Firms Unite to Create ‘Sorren’ — a New Top 50 Firm

Sorren, a new Top 50 accounting firm, was formed by like-minded firms nationwide to pursue shared growth and collaboration. Previously, long connected through the BDO Alliance and industry ties, they’ve formalized their partnership by combining expertise, values, and resources.

From Collaboration to a Movement

What began as mutual support grew into a movement to improve service, expertise, and address industry challenges. “We realized we could do so much more — for our teams, our clients, and our communities — by working together,” said Josh Tyree, President of Sorren. “As Sorren, our clients still work with the trusted advisors they’ve always known, but now those same teams are backed by enhanced capabilities and infrastructure. Together, we’re more powerful. We’re better equipped to solve the industry’s most pressing issues, while staying rooted in the values that connected us in the first place.” 

Backed by Strategic Investment and Leadership

DFW Capital Partners, a New York-based private equity firm, supports Sorren. Sorren CEO, Michael O’Donnell, has been critical in overseeing the growth of this accounting firm. “We acknowledge that our lead investor, DFW, has been vital in bringing our vision to life. They have backed and supported our strategy from the very beginning and it really shows with the progress that we’ve made and the fast success that we’ve seen,” O’Donnell stated. Together, more than 1,000 U.S. professionals across 20 offices nationwide now make up Sorren. Sorren expanded into India, the Philippines, and St. Lucia, employing over 300 people. It plans to continue strategic growth by partnering with firms committed to personalized service, community, and technology.

Industry Recognition and Vision

Respected industry advisor, Allan Koltin, CEO of Koltin Consulting Group, expressed, “What makes Sorren stand out is the way these firms came together—with intention, shared values, and a commitment to staying deeply connected to their local markets. This group didn’t just merge for size; they united around a common purpose. It’s a blueprint for how innovative firms can grow, while staying true to who they are.” 

About Sorren 

‘Sorren’ blends root meanings of ‘master of craft’ and ‘coming together as one,’ reflecting the firm’s core values. The firm offers strategic solutions to their clients in Tax, Assurance, Client Accounting Services (CAS), and Advisory. 

Sorren, led by the initial vision of Harris (Idaho), brings together firms from around the country; Chigbrow Ryan Murata (Idaho), SBF Advisors (Florida), KMA Advisors (Wisconsin), KDP Advisors (Oregon), Aycock & Company (Texas), Pisenti & Brinker (California), Hoerber Tillman & Company (Florida), Stockman Kast Ryan & Company (Colorado), Acuity (Georgia), JRJBF (Illinois), Capital Nomics Valuations (California), Roeser Accountancy (California). 

Sorren comprises Sorren CPAs, P.C., a licensed independent CPA firm that provides client attest services, and Sorren, Inc., an alternative practice structure that offers business advisory and non-attest services, complying with all applicable laws, regulations, standards, and AICPA codes of conduct.

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