Sorren adds two Mid-Atlantic firms

• Key insight: Learn how one PE-backed accounting firm is expanding its Mid-Atlantic footprint.
• Expert quote: "Their deep client relationships, specialized expertise and commitment to helping organizations succeed make them outstanding additions to Sorren ..."   — Josh Tyree, Sorren
• Forward look: Watch for the firm's continued dealmaking activity.

Sorren acquired Alta CPA Group in Annapolis, Maryland, and Zinman & Company in Southampton, Pennsylvania, expanding the Top 50 Firm's Mid-Atlantic footprint.

Atla services nonprofit organizations, labor unions and government entities, and strengthens Sorren's nonprofit expertise. Zinman provides tax, accounting and advisory services to businesses, nonprofits and individuals throughout the Greater Philadelphia region.

"Both Zinman & Company and Alta CPA Group have built exceptional reputations by delivering trusted guidance and personalized service," Sorren CEO Josh Tyree said in a statement. "Their deep client relationships, specialized expertise and commitment to helping organizations succeed make them outstanding additions to Sorren as we continue to strengthen our national platform."  

Sorren, based in Meridian, Idaho, ranked No. 48 on Accounting Today's 2026 Top 100 Firms list. The firm reported $192.3 million in revenue, with 101 partners and over 1,100 employees across 24 offices. It is backed by private equity firm DFW Capital Partners and was formed in May 2025 through the combination of 13 firms. Last week, it launched a legal services practice called Sorren Law.

"Throughout our history, we've focused on building lasting relationships and helping clients navigate important decisions with confidence," Zinman managing partner Mark Zinman said in a statement. "Joining Sorren allows us to expand the resources available to clients while continuing to provide the service they know and trust."  

"Many of the organizations we serve are working to create meaningful impacts in their communities while navigating increasing financial and regulatory complexity," Alta managing member Jeff Griffith said in a statement. "By joining Sorren, we're enhancing our ability to support those organizations with broader expertise and additional resources while maintaining the personalized approach they've come to expect."  

Sorren has been steadily acquiring firms. This year, it added Persing Professional Group and Carefree Professional Practice Resources, both in Reno, Nevada, Gorfine, Schiller & Gardyn in Maryland, Hess & Rohmer in Texas, and Connected Accounting in California. Last year, it added Healthworks in Virginia, RTO & Co. in Oregon, and Casey Neilon in Nevada.

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