Tonneson + Co: Independently owned. Employee driven. Client focused.®

Tonneson + Co is a certified public accounting and consulting firm headquartered in Wakefield, Massachusetts. We provide accounting, tax, auditing and business advisory services that address the local, domestic, and international needs of our clients. 

Tonneson + Co was named a 2023 Best Accounting Firm to Work For. In 2021, Tonneson + Co was named the Number One Best Firm for Women in the U.S. by Accounting Today. Our firm was ranked the Number Three Mid-Sized Accounting Firm to Work For in 2021 by Accounting Today. Tonneson + Co was also named to Accounting Today’s Best Accounting Firms to Work For lists in 2022, 2020, 2019, 2018 and 2016. 

Here are just a few reasons why exceptional individuals have chosen to pursue their accounting careers at Tonneson + Co:

•	Employee-empowered firm
•	Inclusive environment where everyone belongs
•	Flex time and work from home opportunities
•	Paid time off to study for the CPA exam
•	Tuition reimbursement for advanced degrees
•	Fun outings and team-building activities

Tonneson + Co is committed to work-life balance. We give our employees a great degree of flexibility and support them with cloud-based technology that makes it possible to work remotely. We also frequently host social events, including virtual games and gatherings, women’s events, scavenger hunts, and lunch and learn sessions. 

Tonneson  + Co has a strong commitment to diversity, equity and inclusion, which is a core value of our firm. Our Diversity, Equity and Inclusion Committee focuses on empowering staff to improve awareness of DEI within and outside the company. 

When we say that we are “employee driven,” we mean it. We frequently ask for feedback from our employees, ensuring that every employee’s voice matters and is heard. The input that we get from employees through venues such as surveys, town hall meetings, and small group feedback sessions helps to shape the future of our firm. 


Accounting

Tonneson + Co

Tonneson + Co's headquarters in Wakefield, MA, United States

Kimberly Marcella

Michelle Harden

Caleb Berry

Robbin Ayer

Emily Nolan

Carol Blanch

Smita Kapadia

Linda Andrews

Angelo McCullough

Noah Canto

The Tax Team at Tonneson + Co provides comprehensive tax services including tax planning, compliance, and advisory for local, domestic, and international clients. They ensure compliance with evolving tax regulations, optimize tax positions, and offer strategic advisory services to enhance tax efficiency. The team collaborates closely with clients to understand their unique needs and deliver tailored tax solutions, while fostering an inclusive and employee-driven work environment.

Tax Team

The Leadership Team at Tonneson + Co is responsible for steering the strategic direction of the firm, ensuring alignment with its core values of being employee-driven, client-focused, and committed to diversity, equity, and inclusion. This team, comprising Managing Directors, an Executive Managing Director, and Principals, oversees key operational areas, fosters a supportive and inclusive workplace culture, and continually seeks feedback to improve and innovate the firm's service offerings.

Leadership Team

This department manages administrative functions and oversees audit processes to ensure compliance and efficiency.

Administration and Audit

This department is responsible for conducting audits to ensure compliance and assess the accuracy of financial records.

Audit Department

The Audit and Assurance team at Tonneson + Co is responsible for conducting meticulous audits and providing comprehensive assurance services to ensure the accuracy and integrity of financial statements for our clients. This team performs risk assessments, evaluates internal controls, and ensures compliance with accounting standards and regulations. By delivering thorough and reliable audit services, the team supports our clients in making informed financial decisions and maintaining stakeholder trust.

Tonneson + Co

Org chart

Teams

Tax Team

Leadership Team

Administration and Audit

Audit Department

Audit and Assurance

Offices

Tonneson + Co

Org chart

Teams

Tax Team

Leadership Team

Administration and Audit

Audit Department

Audit and Assurance

Offices

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