Insights

Strong Market Position As part of Plante Moran, a leading nationwide accounting and consulting firm with extensive regional recognition and awards, Tonneson + Co is well-positioned to expand its client base and introduce new services to similar organizations seeking reputable financial and consulting expertise.

Technological Adoption Utilizing advanced tools such as Hotjar, Qlik, Workfront, and industry-specific security standards like PCI DSS indicates a focus on digital transformation and security, offering opportunities to provide tailored technology upgrades, training, and cybersecurity solutions to enhance client efficiency.

Recent Industry Recognition With recent awards for workplace excellence and leadership within the region, the firm demonstrates a strong employer brand that can be leveraged to attract talent and build strategic partnerships with other organizations emphasizing employee engagement and corporate reputation.

Growth and Revenue Potential Operating within a revenue range of 50 to 100 million dollars and part of a top-tier professional services network, there are opportunities to cross-sell additional consulting, tax, and wealth management services to existing clients and target similarly sized organizations in the industry.

Expanding Service Offerings Participation in industry events like the MAPconnected Vehicle Service & Warranty Summit highlights a focus on innovative sectors such as automotive-related services, presenting prospects to develop specialized consulting solutions for emerging markets and tech-enabled industries.

Tonneson + Co Tech Stack

Tonneson + Co uses 8 technology products and services including QuickBooks, AutoCAD, Cloudflare, and more. Explore Tonneson + Co's tech stack below.

  • QuickBooks
    Accounting And Finance
  • AutoCAD
    Cad & Graphics
  • Cloudflare
    Content Management System
  • IBM InfoSphere
    Data Integration
  • PyScript
    Miscellaneous
  • Microsoft Word
    Office Suites
  • .NET
    Programming Languages
  • AddThis
    Widgets

Media & News

Tonneson + Co's Email Address Formats

Tonneson + Co uses at least 2 format(s):
Tonneson + Co Email FormatsExamplePercentage
First.Last@tonneson.comJohn.Doe@tonneson.com
72%
Last@tonneson.comDoe@tonneson.com
19%
FLast@tonneson.comJDoe@tonneson.com
8%
Fir.Last@tonneson.comJoh.Doe@tonneson.com
1%
First.Last@plantemoran.comJohn.Doe@plantemoran.com
96%
FirstLast@plantemoran.comJohnDoe@plantemoran.com
2%
First.Middle@plantemoran.comJohn.Michael@plantemoran.com
1%
FLast@plantemoran.comJDoe@plantemoran.com
1%

Frequently Asked Questions

Where is Tonneson + Co's headquarters located?

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Tonneson + Co's main headquarters is located at 401 Edgewater Place Suite 300 Wakefield, Massachusetts 01880 United States. The company has employees across 2 continents, including North AmericaAsia.

What is Tonneson + Co's phone number?

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You can contact Tonneson + Co's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Tonneson + Co's official website and social media links?

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Tonneson + Co's official website is plantemoran.com and has social profiles on LinkedIn.

How much revenue does Tonneson + Co generate?

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As of February 2026, Tonneson + Co's annual revenue is estimated to be $4.1M.

What is Tonneson + Co's SIC code NAICS code?

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Tonneson + Co's SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does Tonneson + Co have currently?

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As of February 2026, Tonneson + Co has approximately 27 employees across 2 continents, including North AmericaAsia. Key team members include Chief Executive Officer: R. E. M.Managing Partner: D. T.Director: J. G.. Explore Tonneson + Co's employee directory with LeadIQ.

What industry does Tonneson + Co belong to?

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Tonneson + Co operates in the Accounting industry.

What technology does Tonneson + Co use?

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Tonneson + Co's tech stack includes QuickBooksAutoCADCloudflareIBM InfoSpherePyScriptMicrosoft Word.NETAddThis.

What is Tonneson + Co's email format?

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Tonneson + Co's email format typically follows the pattern of First.Last@tonneson.com. Find more Tonneson + Co email formats with LeadIQ.

When was Tonneson + Co founded?

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Tonneson + Co was founded in 1975.

Tonneson + Co

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.

Section iconCompany Overview

Headquarters
401 Edgewater Place Suite 300 Wakefield, Massachusetts 01880 United States
Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1975
Employees
11-50

Section iconFunding & Financials

  • $25M$50M

    Tonneson + Co's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    Tonneson + Co's revenue is estimated to be in the range of $25M$50M

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