Tonneson + Co Employee Directory

Q: What is Tonneson + Co known for?

Tonneson + Co was founded in 1975. Tonneson + Co operates in the Accounting industry.

Q: How many employees does Tonneson + Co have currently?

Tonneson + Co has approximately 27 employees.

AccountingMassachusetts, United States11-50 Employees

Tonneson + Co is now part of Plante Moran.

As of July 1, 2025, Tonneson + Co has officially joined Plante Moran, one of the nation’s largest accounting, tax, consulting, and wealth management firms. With shared values, a people-first culture, and a commitment to exceptional client service, this combination expands our capabilities and reach — while continuing to serve clients with the same trusted team.

Find Tonneson + Co employees' phone numbers or email addresses

Tonneson + Co Global Highlights

North America
83

United States Of America
83

Asia
1

Pakistan
1

Tonneson + Co's Leadership

R. E. M.
Chief Executive Officer
Mobile Phone
Email
D. T.
Managing Partner
Mobile Phone
Email
J. G.
Director
Mobile Phone
Email
J. T.
Audit Managing Director
Mobile Phone
Email
C. B.
Director
Mobile Phone
Email
J. F.
Managing Director
Mobile Phone
Email
M. M.
Managing Director
Mobile Phone
Email
K. C. B.
Director
Mobile Phone
Email

Tonneson + Co Employee Metrics

100%

50%

2026

2025

Accounting
Community & Social Services
Human Resources
Program & Project Management
Administrative
Other

Contact profiles from Tonneson + Co

Name

Title

Contact Info

Location

Last Update

R. E. M.
Chief Executive Officer
Mobile Phone
Email
United StatesMassachusetts
Jan 03, 2024
D. T.
Managing Partner
Mobile Phone
Email
Sep 08, 2025
J. G.
Director
Mobile Phone
Email
United StatesMassachusetts
Jan 29, 2026
J. T.
Audit Managing Director
Mobile Phone
Email
United States
Jan 29, 2026
C. B.
Director
Mobile Phone
Email
United StatesNew Hampshire
May 28, 2025
J. F.
Managing Director
Mobile Phone
Email
United StatesMaryland
Oct 21, 2025
M. M.
Managing Director
Mobile Phone
Email
United StatesMassachusetts
Oct 20, 2025
K. C. B.
Director
Mobile Phone
Email
United StatesMassachusetts
Oct 20, 2025
K. F.
Tax Director
Mobile Phone
Email
United StatesMaryland
Nov 15, 2025
T. O.
Managing Director
Mobile Phone
Email
United StatesMassachusetts
Nov 19, 2025

Frequently Asked Questions

What is Tonneson + Co known for?

Tonneson + Co was founded in 1975 operates in the Accounting industry. The company's main headquarters is located in 401 Edgewater Place Suite 300 Wakefield, Massachusetts 01880 United States; you can contact the main corporate office by phone at

+1-781-245-****

. Explore Tonneson + Co's company overview page for more information.

What is Tonneson + Co's most common email format?

Tonneson + Co employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Tonneson + Co email formats with LeadIQ.

How many employees does Tonneson + Co have currently?

Tonneson + Co has approximately 27 employees as of February 2026. These team members are located across 2 continents, including North AmericaAsia.

Who are Tonneson + Co's key employees and leadership?

As of February 2026, Tonneson + Co's key employees include:

Chief Executive Officer: R. E. M.
Managing Partner: D. T.
Director: J. G.
Audit Managing Director: J. T.
Director: C. B.

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