J.M. O'Brien & Co., P.C. is a top-rated accounting firm in Western Massachusetts, serving clients throughout the Pioneer Valley and beyond. With over 75 years of experience, we offer a wide range of services, including accounting, auditing, taxation, and financial planning. Our team of certified public accountants is dedicated to helping clients thrive by providing proactive business strategy and personalized service. From complex audits to straightforward compilation financial statements, our goal is to help clients meet their financial and operational objectives, making their community a better place to live and work.