Top 50 accounting firm Doeren Mayhew has expanded its presence in Houston after acquiring TBK CPA, effective Nov. 17.
Financial terms of the deal weren’t disclosed. As a result of the transaction, Troy, MI-based Doeren Mayhew adds 35 professionals, with four individuals assuming leadership roles.
This deal follows Doeren Mayhew’s acquisition of another Houston accounting firm, Reimer McGuinness Hess CPAs & Advisors, last July.
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“We entered 2025 with a clear focus on growth that aligns with our values and vision for the future of Doeren Mayhew,” Chris Masters, Houston managing principal at Doeren Mayhew Advisors LLC, said in a statement on Nov. 11. “TBK not only strengthens our footprint in the Houston market but combines our commitment to exceptional client service and a people-first culture. Their reputation for delivering tailored client solutions and fostering a collaborative environment mirrors our own, and I look forward to seeing what we will accomplish together.”
Founded in 2014, TBK is a Houston-based tax accounting firm offering comprehensive tax services to high-net-worth individuals and privately held companies primarily in the health care, real estate, oil and gas, professional services, and construction industries.
All former TBK partners will join Doeren Mayhew’s leadership group as tax principals, including John Blackmon, Kristi Gibb, Nick Kabani and Colin Taylor. Chuck Fiorello, previously a partner at TBK, will join the firm in a director role.
In a joint statement from TBK’s leadership group, they shared, “We are incredibly proud of the firm we’ve built over the past decade. Reflecting on our growth, our leadership team took a thoughtful look at the best path forward to continue meeting the evolving needs of our clients while creating even greater opportunities for our employees. Doeren Mayhew gives us access to a wealth of resources that we know will help strengthen our client relationships and expand our ability to advise them in every aspect of their business.”
This is Doeren Mayhew’s ninth acquisition in 2025. The accounting firm received an infusion of outside capital in August 2024 by selling a stake to Audax Private Equity. Doeren Mayhew said at the time that the investment will allow it to broaden its geographic footprint via continued acquisitions, as well as to enhance its service offerings, technology infrastructure, and overall employee and client experience.
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Doeren Mayhew now operate under an alternative practice structure: Doeren Mayhew Assurance provides attest services as a licensed CPA firm, while Doeren Mayhew Advisors LLC provides business advisory, tax, and non-attest services. Collectively, these entities and the subsidiaries will continue under the brand name Doeren Mayhew.
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