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About Us

Mastrogiovanni & Denehy, P.C. is a full-service Accounting firm serving the tax, accounting and consulting needs of individuals and small businesses in the North Shore including Lynnfield, Peabody, Beverly, Salem, Saugus, Woburn and more. We strive to attain the perfect balance between small, local, attentive service and professional experience and expertise.

We believe that listening is the foundation of a lasting client relationship build on trust and respect. Our goal is to provide financial leadership, guidance and advice that you can really use to help you grow your business and become more successful.


Heather L. Denehy, CPA- Managing Partner

Heather L. (Cockroft) Denehy graduated magna cum laude from Northeastern University in Boston, Massachusetts in 1997, earning a Bachelor of Science in Business Administration with a concentration in Accounting.  She was inducted into the Beta Gamma Sigma and Beta Alpha Psi honor societies.

Heather became a certified public accountant in the Commonwealth of Massachusetts in September of 2000. Heather began working for Carmine Mastrogiovanni part time in 1993 while in college and continued to work on a part-time basis until 2007 when she joined him full time.  Heather’s first job out of college was with prestigious Arthur Andersen LLP in Boston in the High Technology Division of the Audit Division where she worked exclusively with small business clients.  There she participated in preparing companies for initial public offering on NASDAQ, a public debt offering and audit and review services for emerging growth companies.  Heather has also worked for two privately held, venture capitalist backed technology companies and two publically traded pharmaceutical companies in the Boston area, serving in management roles within the accounting and finance departments. 

Heather is a member of the Massachusetts Society of Certified Public Accountants.

When Heather is not working, she enjoys spending time with her husband and three children at her home in North Reading, Massachusetts.


Carmine Mastrogiovanni, CPA-Partner

Carmine Mastrogiovanni graduated from Bentley College in Waltham, Massachusetts in 1969, earning a Bachelor of Science in Accounting.   Carmine became a certified public accountant in the Commonwealth of Massachusetts in May of 1973 and earned his Personal Financial Specialist (PFS) designation in 2005.  He is also a Notary Public.

Carmine has been in a practicing certified public accountant since 1973, operating as a sole practioner until admitting Heather as a partner in 2012, changing the name of the firm to Mastrogiovanni & Denehy, PC. 

Carmine is a member of the American Institute of Certified Public Accountants and the Massachusetts Society of Certified Public Accountants.

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