Chip Helme
(703) 385-8888 | email
Managing Principal
Gray Coyner
(703) 385-8888 | email
Andrew Henderson
(703) 385-8888 | email
Nathan "Bucky" White
(703) 385-8888 | email
Natalie Anzzolin
(703) 385-8888 | email

Product and Service Categories

Thompson Greenspon


4035 Ridge Top Rd #700, Fairfax, VA 22030 United States

About Us

Running an organization successfully is a challenge. Knowledge, skill, hard work, and more than traditional accounting are required. Our clients expect us to take their business as seriously as they do and expect our guidance in implementing plans and strategies that will help them succeed in the future.

As CPAs and advisors, we strive to build a successful partnership based on expertise and trust with each client. We understand that no two clients are alike, and as such, we focus on tailoring our services and expertise to meet individual needs.

Thompson Greenspon is a certified public accounting firm providing financial reporting, tax and advisory services for businesses and individuals in the United States.  Located in Fairfax, VA, the firm has been serving the Washington, DC metropolitan area and beyond for more than 60 years. While we are among the 20 largest firms practicing in Virginia, we pride ourselves on our ability to provide personal attention to our clients.

Our Experience Working with Nonprofit Associations/Organizations:

Thompson Greenspon has been working with nonprofit organizations since the firm’s inception in 1956. We provide accounting and consulting services to a broad range of nonprofit clients, including trade associations, private schools, community and business foundations, religious organizations, social clubs, and other charitable organizations.

Our principals and professional staff members are actively involved on a personal basis with local nonprofit organizations in the DC Metro area. As part of these organizations, our professionals have gained experience and perspective working on and with boards of directors, managing nonprofit operations and understanding the types of issues that nonprofit entities face.

Our recommendations aim to improve the financial performance and increase the efficiency and effectiveness of nonprofits and help them grow and fulfill their mission. We take pride in working along-side nonprofit organizations as they increase membership, enrollment and obtain new funding sources.

Financial Reporting, Assurance and Accounting Services

  • Audits, Reviews, Compilations
  • Compliance and Financial Audits under OMB Circular A-133
  • Agreed-upon Procedures Engagements
  • Internal Control Evaluation
  • Training and Industry Updates
  • Cost Determination and Allocation Plans
  • Investment Policies
  • Assistance with Budget Preparation
  • Accounting Processes and Systems Implementations
  • Interface with Government Agencies
  • Pension and Profit-sharing Planning
  • Benefit and Compensation Packages
  • Financing Packages and Assistance
  • Personnel Training
  • Recruitment of Financial Personnel

Tax Services

  • Informational Returns 990 and 990-T
  • Federal, State and Local Tax Compliance
  • Unrelated Business Income Tax Compliance and Consultation
  • Application for Exempt Status and Registration Filing
  • IRS Penalty Exposure Reviews

Advisory Services

  • Strategic Business Planning
  • New Business Formation