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Maner Costerisan Rises Six Spots in National Accounting Firm Rankings
Maner Costerisan continues to gain national recognition for its growth, earning the No. 116 spot on INSIDE Public Accounting’s (IPA) 2026 Top 200 Firms list. The Michigan-based accounting and business advisory firm climbed six positions from No. 122 in 2025.
The annual IPA Top 500 ranks CPA firms across the United States by net revenue and is widely regarded as a leading benchmark of growth and performance within the accounting profession.
Since 2022, Maner has risen 43 spots, climbing from No. 159 to No. 116.
The firm’s steady advancement reflects its continued investment in services and solutions that help clients achieve their goals. Building on its core tax, audit and accounting expertise, Maner continues to strengthen its capabilities across technology and cloud solutions, wealth management, consulting and other advisory services, giving clients access to broader expertise and support as their needs and businesses evolve.
“Our continued rise reflects both the talent of our team and the trust our clients place in us,” said Trey Williams, CPA, president of Maner Costerisan. “Clients increasingly need support that extends beyond traditional accounting. We are investing in the people, technology and specialized expertise to help them make sound decisions and move their organizations forward.”
The ranking reinforces Maner’s long-term strategy of investing in its people, technology and service offerings while maintaining a strong commitment to client relationships.
For more information about the IPA Top 500, visit INSIDE Public Accounting’s Top 500 CPA Firms.
About Us
Maner Costerisan is a full-service public accounting and business consulting firm founded in 1906 and based in Lansing, Michigan. With 120 years of experience and offices in Lansing and Grand Rapids, the firm provides a comprehensive range of services, including audit and assurance, tax planning and preparation, business consulting, technology solutions, and wealth management. The firm is nationally recognized including being named a Best Firm to Work For, Best Firm for Young Accountants, Best of the Best Firms, and a Top Firm to Watch, among other accolades.
Maner Costerisan is dedicated to helping clients achieve their financial goals through innovative solutions, personalized service, and a commitment to excellence. The firm serves a diverse clientele across various industries, including manufacturing, nonprofit, government, health care, construction, and education. For more information, contact us today.
The materials provided in the News & Insights section are for general informational purposes only and may not reflect the most current legal, tax, or financial developments. While we strive to ensure accuracy at the time of publication, Maner Costerisan does not guarantee that the information remains up-to-date or free from error. We recommend consulting directly with a Maner Costerisan team member to confirm the applicability and relevance of any information to your specific situation.