CST Group, a leading CPA and business advisory firm based in Reston, VA, has once again been recognized among INSIDE Public Accounting’s (IPA) Top 300 Firms for 2025. This marks the ninth consecutive year the firm has earned this honor, a testament to its sustained excellence, strategic growth, and commitment to quality service.

The IPA Top 500 firms are ranked based on U.S. net revenues, with rankings determined from INSIDE Public Accounting Practice Management Survey. This year’s list represents IPA’s 35th annual ranking of the largest accounting firms in the country.

About CST Group

Now in its 52nd year, CST Group is a leading certified public accounting and business advisory firm serving clients across Northern Virginia and the Washington, DC metropolitan area. The firm provides comprehensive accounting, tax, and consulting services, with a focus on closely held businesses, medical and dental practices, real estate companies, government contractors, non-profit organizations, and individual professionals and business owners. CST Group is licensed to operate in Virginia, Maryland, the District of Columbia, and Florida, and is committed to delivering personalized, high-quality solutions to help clients succeed at every stage of growth.

About INSIDE Public Accounting

INSIDE Public Accounting (IPA) is North America’s leader in CPA Practice Management and provides firm leaders with data-driven insights and thought leadership to enhance their practices. With over 35 years of dedication to the public accounting profession, IPA conducts an extensive analysis of financial and operational data from hundreds of firms annually, offering top practice management resources across North America.

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