Top 15 accounting firm CohnReznick said Tuesday it’s acquiring the Aldrich group of companies, which includes INSIDE Public Accounting top 100 firm Aldrich CPAs + Advisors and Aldrich Wealth, in a deal expected to close in mid-December.
Financial terms of the transaction weren’t disclosed.
This is the latest marriage between accounting firms in the top 100 by revenue this year. In June, top 10 accounting firm Baker Tilly announced the acquisition of New York City-based top 50 firm Anchin, Block & Anchin, which resulted in Baker Tilly relocating its headquarters from Chicago to the Big Apple.
The deal that garnered the most headlines was in July when private equity-backed Grant Thornton, the ninth-largest accounting firm in the U.S., announced it was buying CBIZ, the eighth-largest firm, in an all-cash transaction with an enterprise value of $5 billion. That move is expected to make Grant Thornton the fifth-biggest accounting firm by revenue in the country.
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This is CohnReznick’s third M&A deal in 2026. The New York City-based firm acquired Minneapolis-based CPA firm Smith Schafer & Associates in January and added Houston-based CPA firm Ham, Langston & Brezina in July. Over the past year, CohnReznick has also expanded in San Francisco; Tampa and Tallahassee, FL; and Richmond, VA, after receiving an outside investment from private equity firm Apax Funds in early 2025.
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Founded in 1973, Lake Oswego, OR-based Aldrich is one of the 10 largest accounting firms headquartered on the West Coast, significantly expanding CohnReznick’s geographic footprint. In addition to 500-plus professionals and 48 partners, Aldrich brings offices in Spokane, WA; Portland (Lake Oswego) and Salem, OR; Carlsbad, Mission Valley, and Orange County, CA; Salt Lake City, UT; and an expanded presence in San Diego and Denver.
“This is a significant milestone in CohnReznick’s growth and an important investment in our future,” David Kessler, CEO of CohnReznick Advisory, said in a statement on Oct. 13. “Aldrich brings exceptional talent, strong market leadership, and highly complementary capabilities, including a wealth management platform that creates an important new avenue for growth and expands the solutions we can bring to clients. I’m very excited about this expansion on the West Coast, strengthening our ability to serve clients in some of the most dynamic markets and industries in the country, and creating even greater opportunities for our people.”
CohnReznick also says the move strengthens its industry capabilities across private client services, construction, telecom, M&D (agribusiness), and more to create significant growth opportunities for the combined organization.
During its most recent fiscal year, Aldrich CPAs + Advisors had revenue of $103.3 million, according to INSIDE Public Accounting. Aldrich Wealth, a registered investment advisory firm, has more than $8 billion in assets under advisement as of Aug. 26, 2026. The Aldrich group of companies also includes Aldrich Capital Advisors, which provides advisory services for business transactions, and Aldrich Solutions, which delivers business and technology consulting services driven by industry understanding and strategic insights.
“For more than 50 years, the decisions we have made at Aldrich have been guided by what is best for our people, our clients, and our communities,” John Lauseng, CEO and partner at Aldrich, said in a statement. “Joining CohnReznick gives our people greater opportunities to grow, expands the capabilities and resources we can bring to our clients, and allows us to build on the relationships, culture, and commitment to our communities that have defined Aldrich. We are excited about what we can accomplish together, particularly as Aldrich becomes the cornerstone of CohnReznick’s new West Region.”
“Our clients have always been at the center of how we make decisions, and that was an important consideration throughout this process,” added Heather Wonderly, CEO of Aldrich Wealth, in a statement. “Joining CohnReznick gives us the opportunity to build on the highly personal, fiduciary approach our clients value while expanding the resources and capabilities we can bring to individuals, families, business owners, and retirement plan sponsors. Aldrich Wealth becoming the platform for CohnReznick’s wealth management business creates an exciting opportunity to build on what our team has created and expand the impact we can make for our clients and our people.”
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