ER Williams Management Consulting is a firm that specializes in financial management, contract administration, accounting and consulting services. The firm offers portfolio management, budget and contracts administration, and acquisition and procurement support services. Its clients include the U.S. Department of Defense, Housing & Urban Development and Transportation, as well as TRICARE Management Activity. ER Williams Management Consulting works in partnerships with Affordable Creative Se vices, Bark Horse Industries, Capstone Corporation, By-Light Technology and Westaff. It maintains an office in Falls Church, Va.