What Makes Us Unique

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Expertise

For more than 65 years, we have been offering tax, audit, and accounting services to diverse industries. Our principal group has longstanding accounting experience, enabling our clients and staff to benefit from their breadth of technical knowledge.

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Client Service

Delivering superb service to you has been and will always be our top priority. Our client’s satisfaction far exceeds that of other accounting firms, as demonstrated by our ClearlyRated Best of Accounting Awards, an honor less than 1% of accounting firms in the US and Canada have received.

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Dedication

We strive to be your long-term trusted advisor by understanding your business goals and helping you reach them. Each client has devoted team members and access to the specialized knowledge of every member of the firm whenever it is needed.

 

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Recognition

Recognized as a top 400 firm in the country and top 40 firm in the Metro DC area, we have the resources required to help you succeed.

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Community Commitment

Founded in Fairfax, we are proud members of the Metro DC area and are dedicated to supporting and improving our local communities. Learn more here. 

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Global Resources

Our CPAmerica/Crowe Global affiliation provides you with access to experienced business advisors around the world.

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Our Team

At Thompson Greenspon, approximately 70% of our professional staff are experienced CPAs, substantially more than at the Big 4 accounting firms. In addition to our professional credentials, we offer a sincere desire to understand our clients’ needs and to provide personalized, valuable service.

Testimonials

Hear what our clients have to say about working with us.

“More than 35 years as a personal and business client.  I would not have stayed this long – singing their praises – and recommending their service unless I was pleased.  Their prompt service and accurate advice is greatly appreciated.”

Jack R. 

“Dependable, courteous, assurance in our ever-changing world of helping one to stay on top of requirements.”

Virginia R.

“I have great confidence in the work done and commitment to common sense solutions.”

Jane W.

In the Community

Thompson Greenspon principals and staff are active in a variety of nonprofits and community efforts in the Metro DC area. It’s our way to learn what challenges and opportunities our nonprofit clients face and, more importantly, for us to support the community in which we work.

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