Reimer McGuinness Hess CPAs & Advisors

Based in Houston, US, Reimer McGuinness Hess CPAs & Advisors specializes in professional financial services, including assurance, tax advisory, and business consulting for privately held businesses. Founded in 2007, Reimer McGuinness Hess CPAs & Advisors operates as an independent firm providing tailored financial services. In July 2025, the firm was acquired by Doeren Mayhew & Co. , P.

C. , enabling an expansion into new markets. The firm has actively engaged in a single investment deal. Following its merger with Doeren Mayhew, the firm offers a comprehensive suite of professional services that includes assurance, tax advisory, and business consulting, specifically designed for privately held businesses.

The firm serves various sectors such as health care, manufacturing, real estate, and nonprofits, addressing complex client needs through services like financial reporting, tax compliance, strategic planning, and risk management. Additionally, it integrates innovative offerings such as cybersecurity and transaction advisory into its service portfolio, primarily within the United States, with plans to expand into emerging markets. Doeren Mayhew generates revenue through direct client engagements and long-term partnerships, employing a fee-based structure. Clients typically engage in one-time consultations or ongoing advisory contracts, often on a retainer basis.

Revenue is derived from assurance and tax services, with clients paying for specific engagements based on the complexity and scope of the work. The firm’s core services include comprehensive tax planning, compliance, and specialized audits tailored to specific industry standards, focusing on small to mid-sized businesses. The acquisition of Reimer McGuinness Hess CPAs & Advisors by Doeren Mayhew, finalized in July 2025, enables the firm to enhance its market presence and expand within existing regions while entering new markets. Future initiatives may include the launch of new products and services designed to meet evolving client needs, leveraging the resources and expertise of the larger organization.

The strategic growth plan aims to capitalize on the expanded capabilities and market reach resulting from the merger.