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Erin Coco




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Wakefield, MA


Assurance services
Nonprofits, including private schools
Privately-held companies
Construction contractors

Erin has been with Tonneson for 20 years. Erin co-leads the firm’s Client Accounting and Advisory Services department. In the audit department, she focuses on servicing nonprofit organizations and privately-held companies across various industries. Erin also works in the firm’s Quality Control department performing pre-issuance reviews of financial statements.

Erin is a CPA who earned a B.A. in business administration with a concentration in accounting from the University of New Hampshire. She is a member of the Massachusetts Society of CPAs (MSCPA) and the American Institute of CPAs (AICPA). Erin also serves as the treasurer of Communitas, a nonprofit organization that delivers individualized, family-centered services, programs and support for people of all abilities, across their lifespan and in their communities.

Outside of her daily responsibilities, Erin participates in strategic planning initiatives and frequently represents the firm at industry events. She is also involved in the firm’s mentoring program where she appreciates the opportunity to make an impact on her colleagues’ careers.

Erin resides in beautiful Exeter, NH with her husband and daughter. She and her family enjoy spending time outdoors together—camping in the summer and skiing in the winter. One of their favorite places to vacation is Disneyworld.