Ballinger
Bechtel
Board of Governors - Federal Reserve
D.C. Housing Authority
Department of Housing and Community Development
Department of Energy
Desman Associates
Ellerbe Becket Architects
Foster Wheeler Environmental
Gannett Fleming, Inc.
HNTB Corporation
Howard University
Jacobs Engineering
Lockheed Martin
Marriott Corporation
National Institute of Health
Pentagon
RTKL Architects
Raytheon Engineers and Constructors
U.S. Army Corps of Engineers
U.S. Navy
U.S. Postal Service
Walker Parking Consultants