Insights

Market positioning Target mid-sized organizations in the DC metro area seeking specialized accounting services for construction, government contracting, nonprofits, professional services, and employee benefits to complement their growth and compliance needs.

Financial scale Leverage Thompson Greenspon's established revenue range and regional focus to position services such as advanced financial reporting, tax optimization, and advisory offerings to firms with similar size and industry footprints looking for partner-led insights.

Workplace credibility Highlight award-winning culture and stability (Top Workplace awards and service awards) to address buyers’ risk considerations and support procurement narratives around reliability, employee morale, and long-term client retention.

Technology enablement Promote modern tech stack capabilities (cloud, analytics, data-driven advisory) as a differentiator for efficiency, security, and scalable client service, appealing to firms migrating to integrated digital workflows.

Growth accelerants Position opportunities for advisory services in growth-oriented segments such as government contracting and nonprofits, offering strategic planning, internal controls, and compliance enhancements to support expansion and funding milestones.

Similar companies to Thompson Greenspon

Thompson Greenspon Tech Stack

Thompson Greenspon uses 8 technology products and services including iCIMS, WordPress, Microsoft 365, and more. Explore Thompson Greenspon's tech stack below.

Media & News

Thompson Greenspon's Email Address Formats

Thompson Greenspon uses at least 4 email formats:
Thompson Greenspon Email FormatsExamplePercentage
Last@tgccpa.comDoe@tgccpa.com
76%
FLast@tgccpa.comJDoe@tgccpa.com
15%
FL@tgccpa.comJD@tgccpa.com
5%
LastF@tgccpa.comDoeJ@tgccpa.com
4%

Frequently Asked Questions

What is Thompson Greenspon's phone number?

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You can contact Thompson Greenspon'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 Thompson Greenspon's official website and social media links?

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Thompson Greenspon's official website is tgccpa.com and has social profiles on LinkedIn.

How much revenue does Thompson Greenspon generate?

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As of August 2026, Thompson Greenspon's annual revenue is estimated to be $50M - $100M.

What is Thompson Greenspon's SIC code and NAICS code?

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Thompson Greenspon's SIC code is 7389 - Business Services, Not Elsewhere Classified and NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does Thompson Greenspon have currently?

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As of August 2026, Thompson Greenspon has approximately 61 employees across 1 continents, including North America. Key team members include Interim President: Q. M., Manager, Accounting And Audit: J. G. and Audit Manager: I. P. Explore Thompson Greenspon's employee directory with LeadIQ.

What industry does Thompson Greenspon belong to?

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Thompson Greenspon operates in the Accounting industry.

What technology does Thompson Greenspon use?

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Thompson Greenspon's tech stack includes iCIMS, WordPress, Microsoft 365, Constant Contact, Cisco, WP Engine, Microsoft Teams and Vimeo.

What is Thompson Greenspon's email format?

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Thompson Greenspon's email format typically follows the pattern of Last@tgccpa.com. Find more Thompson Greenspon email formats with LeadIQ.

When was Thompson Greenspon founded?

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Thompson Greenspon was founded in 1956.
Thompson Greenspon logo

Thompson Greenspon

AccountingVirginia, United States51-200 Employees

Thompson Greenspon is a certified public accounting practice delivering financial reporting, tax planning and advisory services. It serves clients across sectors including construction, government contracting, nonprofits, professional services, and employee benefits. Headquartered in Fairfax, Virginia, the firm has supported the Washington, D.C. metropolitan area for more than six decades.
As a mid-sized regional firm, it focuses on delivering tailored solutions to organizations in its specialized industries, blending compliance with strategic guidance. The firm has been recognized for service excellence, receiving the 2023 Best of Accounting Award as well as the 2022 edition.

Section iconCompany Overview

Phone number
Website
tgccpa.com
SIC Code
7389 - Business Services, Not Elsewhere Classified
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1956
Employees
51-200

Section iconFunding & Financials

  • $50M - $100M

    Thompson Greenspon's revenue is estimated to be in the range of $50M - $100M

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