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BerryDunn Listed in Boston Business Journal's Largest Massachusetts Accounting Firms


BerryDunn is ranked 28th on the list of Largest Accounting Firms in Massachusetts published annually by the Boston Business Journal. Firms are ranked by number of Massachusetts employees, and based on the growth experienced by the firm, BerryDunn moved up in rankings. 

Headquartered in Portland, Maine, BerryDunn merged with Massachusetts-based Rodman CPAs in 2019. The Massachusetts office specializes in accounting services for commercial businesses, financial institutions, nonprofits, and healthcare organizations. “We are working with clients to identify and resolve complex, multi-state tax issues and restructurings,” explains Michael Mastroianni, JD, CPA, Principal in the Tax Consulting and Compliance Practice Group. “Some of the emerging tax accounting issues we’re tracking in 2024 include the employee retention credit, pass-through income deduction, bonus depreciation for capital property, and opportunity zones.” 

“This year, we are prioritizing our focus on renewable energy, real estate, and other growing industries across the state,” says Kathy Parker, CPA, MST, Principal and Leader of the Outsourced Accounting Practice Group. “As a leading national professional services firm, we draw from our extensive resources to give clients the confidence to run their businesses and the experience to help them grow.” 

Parker was awarded a Woman to Watch Award in 2023 by the Massachusetts Society of CPAs, recognizing outstanding women in the accounting profession. At the Waltham office, Parker and her team provide personalized back-office services with an entrepreneurial approach for emerging and established companies. 

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 over 800 employees across the US and territories. Learn more at

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