Welcome to S.J. Dennen, CPA, P.C.

Choosing a CPA firm that suits both your business needs and individual needs can be a challenging endeavor. We take pride in our client relationships as well as our high standards of professionalism and ethics. We hope to gain your confidence from our very first interaction.

S.J. Dennen, CPA, P.C. provides professional accounting, audit, financial consulting, tax planning, and tax preparation services to small and medium sized businesses in various industries, non-profit organizations, estates and trusts, and individuals. Our firm has over 30 years of diverse experience in all aspects of tax and accounting matters. We are members of the AICPA, and both the Massachusetts and New Hampshire societies of Certified Public Accountants, with licenses to operate in both states.

We work as partners with you, and adapt our services to accommodate your needs; our well thought out advice facilitates the efficient and profitable operation of your enterprise. We provide services targeted to your specific needs, and hope to become your primary resource for solving various business issues. We do this from a foundation of integrity, independence, and professionalism.