Dennis & Associates Group, Inc provides professional accounting and tax services for clients in Centreville, VA and the greater Washington, D.C. metropolitan area. The firm works with service-based small businesses, including medical professionals, consultants, and other service-based professionals.

Its listed services include tax preparation and planning, accounting services, and bookkeeping services. The practice also references client tools and resources such as QuickBooks Online, secure document submission, billing access, calculators, forms, and a resources library. The profile facts list an EA credential and in-person service format.