Insights

Strong Industry Reputation Thompson Greenspon has established itself as a leading accounting firm in the Washington, DC area with over 65 years of experience and numerous industry awards, indicating high client satisfaction and a solid market position that could be leveraged for expanded service offerings.

Recognition for Service Excellence The firm has received multiple prestigious awards such as the 2023 Best of Accounting Award and Top Workplace honors, demonstrating a commitment to quality and employee engagement that appeals to prospective clients seeking reputable financial partners.

Technology Infrastructure Utilizing cloud-based solutions like Google Cloud and modern analytics tools positions Thompson Greenspon as a technologically advanced firm, providing opportunities to offer cutting-edge advisory and digital transformation services to similar clients.

Growth Potential With revenues ranging between $50 million and $100 million and a relatively moderate team size, the firm is in a growth phase with likely needs for expanded consulting, advisory, and technology integration services as they scale and diversify.

Client Focus and Industry Specializations The firm’s specialization in sectors such as nonprofit, construction, and government contracting presents opportunities for cross-sector service expansion and tailored solutions, appealing to organizations within these niche markets that value industry-specific expertise.

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Thompson Greenspon Tech Stack

Thompson Greenspon uses 8 technology products and services including MySQL, Google Cloud, JSON-LD, and more. Explore Thompson Greenspon's tech stack below.

  • MySQL
    Database
  • Google Cloud
    Infrastructure As A Service
  • JSON-LD
    Javascript Frameworks
  • HubSpot
    Marketing Automation
  • Kinsta
    Platform As A Service
  • MediaElement.js
    Video Players
  • Adobe Creative Suite
    Visualisation Software
  • Google Analytics
    Web Analytics

Thompson Greenspon's Email Address Formats

Thompson Greenspon uses at least 1 format(s):
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

Where is Thompson Greenspon's headquarters located?

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Thompson Greenspon's main headquarters is located at 4035 Ridge Top Road Suite 700 Fairfax, Virginia 22030 United States. The company has employees across 1 continents, including North America.

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.

What is Thompson Greenspon's SIC code NAICS code?

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Thompson Greenspon's SIC code is 7389 - Business Services, Not Elsewhere Classified 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 April 2026, Thompson Greenspon has approximately 59 employees across 1 continents, including North America. Key team members include Partner: N. A.Interim President: Q. M.Tax Manager: A. T.. 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 MySQLGoogle CloudJSON-LDHubSpotKinstaMediaElement.jsAdobe Creative SuiteGoogle Analytics.

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

AccountingVirginia, United States51-200 Employees

Thompson Greenspon is a certified public accounting firm providing financial reporting, tax and advisory services in a variety of areas, including construction, government contracting, nonprofits, professional services and employee benefits. Located in Fairfax, VA, the firm has been serving the Washington, DC metropolitan area for more than 65 years. 

For more information about Thompson Greenspon, visit www.tgccpa.com.

Section iconCompany Overview

Headquarters
4035 Ridge Top Road Suite 700 Fairfax, Virginia 22030 United States
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

Section iconFunding & Financials

  • $50M$100M

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

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