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Doeren Mayhew Expands in Houston with RMH Acquisition
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Subscribe17 JUL 2025 / M&A UPDATES
Accounting firm Doeren Mayhew has acquired Reimer McGuinness Hess CPAs & Advisors, effective July 1, bringing 38 professionals into its fold and expanding its offerings in the healthcare, real estate, manufacturing, and non-profit sectors. The acquisition enhances Doeren Mayhew’s Houston presence and broadens its expertise, with RMH's leadership assuming principal roles and co-founder Tom McGuinness serving in a senior advisory capacity.
In a strategic move to deepen its Houston presence, Doeren Mayhew has acquired Reimer McGuinness Hess CPAs & Advisors (RMH), effective July 1. The deal brings 38 professionals into the fold and enhances Doeren Mayhew’s offerings in tax, assurance, and outsourced accounting across the health care, real estate, manufacturing, and nonprofit sectors.
RMH’s leadership joins as principals, while co-founder Tom McGuinness takes on a senior advisory role. Both firms share a client-centric, entrepreneurial ethos, making integration a natural fit. “This expands not just our headcount, but our expertise and reach in a vital market,” said Houston MP Chris Masters.
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