Maner Costerisan Named a Top Accounting Firm in Great Lakes Region, Nationwide

For the fifth consecutive year, Accounting Today has acknowledged Maner Costerisan as a leading accounting firm within the Great Lakes Region and as one of the ‘Top Firms to Watch’ nationally for the third year, reinforcing the firm’s consistent growth and industry leadership. 

Maner Costerisan Recognized Regionally and Nationally

Maner Costerisan earned the No. 20 spot among top firms in the Great Lakes region—an advancement from No. 21 in 2024—and ranked sixth among Michigan-based firms. The region, which encompasses Michigan, Illinois, Indiana, Ohio, and Wisconsin, represents the second-largest market in the country, reporting an average growth rate of 10.11% over the past year. Maner’s impressive growth rate of 10.57% outpaced the regional average. 

Nationally, Maner Costerisan ranked No. 23 on Accounting Today’s ‘Top Firms to Watch’ list, climbing from No. 29 in 2024. The annual list spotlights firms outside the Top 100 by revenue, recognizing those demonstrating significant growth and innovation. 

“We are proud to be recognized as a top accounting firm in both our region and across the nation,” said Trey Williams, CPA, principal and president of Maner Costerisan. “Our team’s dedication to client service and deep industry knowledge has fueled our continued growth. This recognition is a testament to their hard work and the value we strive to bring to our clients every day.” 

About Accounting Today

Accounting Today is a leading national publication covering the accounting industry. Its annual rankings highlight top-performing firms based on revenue, growth, and strategic insights from firm leadership. 

Maner Costerisan’s continued recognition underscores the firm’s dedication to providing comprehensive accounting, technology, wealth management, and business consulting services to clients across Michigan and beyond. 

The full Accounting Today Top 100 Firms and Regional Leaders report is available online. 

Maner Costerisan is a full-service public accounting and business consulting firm founded in 1906 and based in Lansing, Michigan. With nearly 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 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, and education.

For more information, contact us at maner@manercpa.com or call us at 517.323.7500.