Kathy Rizzo


Accounting and corporate tax services
Quality control

Headshot of Kathy Rizzo, a Shareholder at Tonneson and Co.


Wakefield, MA

Kathy Rizzo is a highly accomplished Shareholder at Tonneson with an impressive tenure of over 30 years in the firm’s Audit Department. Kathy joined the firm in 1993, with a diverse range of expertise encompassing auditing, accounting, and corporate tax services. Kathy brings a wealth of knowledge to the table. Her expertise includes quality control for pre-issuance reviews of financial statements, internal inspections, and overseeing peer reviews.

Kathy’s specialties lie in Audit Readiness, Advisory Services, Assurance Services, and Mergers and Acquisitions, with a wide-ranging portfolio spanning manufacturers, distributors, service providers, employee benefit plans, and nonprofits. As a CPA and a graduate of St. Anselm College with a bachelor’s degree, Kathy upholds professional standards and holds memberships in prestigious organizations such as the American Institute of CPAs (AICPA) and the Massachusetts Society of CPAs (MassCPAs).

Outside of her professional commitments, Kathy is deeply engaged in giving back to the community. She actively participates in volunteering for various charitable fundraising church events, showcasing her commitment to making a positive impact.

With Kathy’s extensive experience, unwavering dedication to quality, and commitment to serving clients with integrity, she stands as a trusted advisor in the field. Her attention to detail and breadth of knowledge make her a valuable asset to Tonneson and a reliable partner for businesses seeking comprehensive auditing and accounting solutions.


Get to know Kathy Rizzo

In her spare time, Kathy finds solace in reading, embracing the outdoors through walks in the woods or on the beach, and expressing her creativity through painting. Above all, she cherishes the moments spent with her loving husband and three children.