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BerryDunn Ranked Largest Accounting Firm in Maine by Mainebiz


BerryDunn has been recognized as Maine’s largest accounting firm by Mainebiz on their annual list of top accounting firms in the state. Founded in Portland, Maine in 1974, BerryDunn has evolved from a regional CPA firm into a national professional services firm experiencing double-digit revenue growth over the last three years. Expanding to serve clients across the country, 40% of BerryDunn’s professionals are based in Maine. 

We attribute our growth to having a strong core of accounting, tax, and advisory services that are complemented by the firm’s management and IT consulting services for healthcare organizations, colleges and universities, and state and local governments across the country. 

“Our roots in Maine run deep,” said Renee Bishop, COO of the firm’s Assurance, Tax, and Advisory Services Team. “As we’ve grown into a nationally recognized firm, Maine remains our home base and is where the majority of our leadership team and office-based employees work and live. The level of service we continue to provide is strongly connected to our amazing base of Maine employees and their commitment to our clients.” 

BerryDunn is committed to positively impacting the communities where it does business through its service offerings and community engagement. In September, the firm was announced as a founding sponsor for the University of Southern Maine’s McGoldrick Center for Career and Student Success, which supports workforce development in Maine. CEO Sarah Belliveau added, “We are firmly dedicated to the state of Maine and look forward to continuing to grow right here where it all began.” In addition to its operations in Maine, the firm also has offices in New Hampshire, Massachusetts, Connecticut, West Virginia, Arizona, and Puerto Rico. 

About BerryDunn  
BerryDunn is a nationally recognized firm providing assurance, tax, and consulting services. Evolving over the years to stay on the forefront of the many industries it serves, the firm’s mission has remained constant: To help each client create, grow, and protect value―while delivering exceptional service based on integrity, expertise, and a constant commitment to client success. BerryDunn serves clients from its eight offices with 800 employees across the US and territories. Learn more at

Related Professionals


  • Renee Bishop
    Chief Operating Officer of Assurance, Tax, and Advisory Services
    T 207.991.5158