About Us
Hallisey & D’Agostino, LLP is a full-service public accounting firm offering a wide array of accounting, tax, and advisory services to individuals and small to mid-size closely-held businesses located throughout Connecticut. Since its formation in 1972, Hallisey & D’Agostino has established itself as one of the region’s premier accounting firms. Our clients operate in a variety of industries, including: construction, manufacturing, real estate, professional and consumer services, and more.

Our Culture
Hallisey & D’Agostino has strived to foster a tight-knit and collegial working environment, devoid of the pretentiousness and undue pressure usually associated with larger firms. To that end, we encourage knowledge sharing and teamwork as much as possible and believe career development and employee morale is paramount. This is evidenced by our low staff turnover rate; staffing continuity yields a more efficient and cost-effective engagement. We also give back to our community through financial support, sponsorships, volunteer opportunities, and by serving on boards of local non-profits. This culture is passed on to our clients, many of whom have been with us since our founding. We value the relationships we’ve built with our clients over the last 40+ years. There is no greater satisfaction.

Delivering Results
We take pride in helping clients turn complex problems into simple, yet effective solutions. Our diverse client base and service offerings expose us to numerous disciplines, industries, and fact patterns. We believe this uniquely positions us to take a more holistic approach when assessing risk, identifying issues, recommending alternatives, and delivering results. We also recognize that we cannot afford to be complacent in this industry. To keep pace with the ever-changing accounting and tax regulations, we stress the importance of continuing education through regular participation at conferences, seminars, and workshops. We also continuously monitor technology trends and invest in our IT systems to ensure our people have the best resources available to prepare quality work. Mediocrity is not in our lexicon.

Our Partners

Our Office

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