CST Group helps businesses in the Washington DC metro area grow smarter and stronger with expert CPA, accounting, business advisory and tax services. Our future is your future – let’s get started. CST Group is a certified public accounting firm serving the Washington, DC metro area for 50 years. We provide comprehensive accounting, tax, and business advisory services for entrepreneurs, investors, closely held businesses and their owners. We are licensed in Virginia, Maryland, DC and Florida. CST is recognized as one of the top CPA firms in the country. Our mission is to deliver forward-thinking client-centric solutions and industry-specific expertise from top-tier professionals. CST uses a consultative approach to help clients make progress toward goals and works to optimize their financial performance. Our subsidiary, District Advisory, is a client accounting services group that helps organizations outsource their accounting or provides oversight to in-house accounting personnel. We steer our clients to success with innovative and effective solutions to their most pressing accounting, tax, and business challenges.