BerryDunn is an accounting and consulting firm that provides services to clients in various industries, including healthcare, government, financial services, and not-for-profit. The company was founded in 1974 and is headquartered in Portland, Maine. BerryDunn offers a range of services, including audit and assurance, tax planning and compliance, risk management, and technology consulting. The company has additional offices in New Hampshire, Arizona, and West Virginia.