Tonneson + Co logo

Tonneson + Co Employee Directory

AccountingMassachusetts, United States11-50 Employees

Tonneson + Co is a Wakefield, Massachusetts-based accounting practice that joined Plante Moran on July 1, 2025. As part of Plante Moran, the combined firm provides accounting, tax, consulting, and wealth management services to its clients. The integration expands capabilities and geographic reach while preserving the existing client-facing team and approach.

The organization serves clients seeking professional accounting and related advisory services within the broader accounting industry. It operates within a larger network that emphasizes a people-first culture and a commitment to client service.

Find Tonneson + Co employees' phone numbers or email addresses

Tonneson + Co Global Highlights

Location
Employees

North America
74

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  • United States Of America
    73
  • Canada
    1

Tonneson + Co's Leadership

  • Managing Partner at Tonneson + Co
    D. T.
    Managing Partner
  • Managing Director at Tonneson + Co
    L. T.
    Managing Director
  • Manager at Tonneson + Co
    J. L.
    Manager
  • Senior Audit Associate at Tonneson + Co
    W. C.
    Senior Audit Associate
  • Cpa at Tonneson + Co
    A. B.
    Cpa
  • Tax Associate at Tonneson + Co
    C. C.
    Tax Associate
  • Cpa at Tonneson + Co
    E. H.
    Cpa
  • Tax Associate at Tonneson + Co
    J. T.
    Tax Associate

Tonneson + Co Employee Metrics

100%
50%
0%
2026
2025
  • Accounting
  • Community & Social Services
  • Human Resources
  • Program & Project Management
  • Other

Contact profiles from Tonneson + Co

Name
Title
Contact
Location
Last Update
  • Managing Partner at Tonneson + Co
    D. T.
    Managing Partner
    Jul 05, 2026
  • Managing Director at Tonneson + Co
    L. T.
    Managing Director
    Oct 21, 2024
  • Manager at Tonneson + Co
    J. L.
    Manager
    Oct 22, 2024
  • Senior Audit Associate at Tonneson + Co
    W. C.
    Senior Audit Associate
    Oct 23, 2024
  • Cpa at Tonneson + Co
    A. B.
    Cpa
    Oct 21, 2024
  • Tax Associate at Tonneson + Co
    C. C.
    Tax Associate
    Oct 16, 2024
  • Cpa at Tonneson + Co
    E. H.
    Cpa
    Oct 22, 2024
  • Tax Associate at Tonneson + Co
    J. T.
    Tax Associate
    Feb 10, 2025
  • Cpa at Tonneson + Co
    J. E.
    Cpa
    Oct 22, 2024
  • Enrolled Agent at Tonneson + Co
    J. P.
    Enrolled Agent
    Oct 18, 2024

Frequently Asked Questions

What is Tonneson + Co known for?

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Tonneson + Co was founded in 1975 and operates in the Accounting industry. You can contact Tonneson + Co's main corporate office by phone at . Explore Tonneson + Co's company overview page for more information.

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

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Tonneson + Co employees' email format typically follows the pattern of First.Last@tonneson.com. 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?

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Tonneson + Co has approximately 26 employees as of August 2026. These team members are located across 1 continents, including North America.

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

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

  • Managing Partner: D. T.
  • Managing Director: L. T.
  • Manager: J. L.
  • Senior Audit Associate: W. C.
  • Cpa: A. B.

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