- The Magazine Group
- The MapNetwork
- The Phi Beta Kappa Society
- The Prime Rib Restaurant
- The Sports Club-LA
- The TCI Companies
- The Washington Home
- TyL Associates
- U.S. Administration on Aging AOA) Consumer Choice and Protection
- U.S. Census Bureau
- U.S. Coast Guard
- U.S. Department of Energy
- U.S. Department of Energy - Federal Energy Management Program
- U.S. Department of Energy-Energy Information Administration
- U.S. Department of the Interior
- U.S. Dept of Justice
- U.S. Dept. of Veterans Affairs Loan Guaranty Service
- U.S. DOL-ETA-Youth Services
- U.S. Environmental Protection Agency
- U.S. Government Printing Office
- U.S. Office of Personnel Management
- United Medical Center
- United States Chamber of Commerce
- United States Hispanic Chamber of Commerce
- United States Postal Service
- United States Treasury
- United States [ Environmental Protection Agency ]
- Unity Health Care
- Urban Land Institute
- US-ASEAN Business Council, Inc.
- USDA Graduate School
- USDA-Farm Service Agency
- Virtegic Group
- VLCPCS
- Washington Convention Center
- Washington Convention Center Authority
- Washington DC Convention and Tourism Corp
- Washington DC VA Medical Center
- Washington National Cathedral
- Washington Suites
- WashingTours and Events
- Waste Equipment Technology Association
- WDG Archetecture Planning Interior Design
- Wendy Marx Foundation
- Williams S. Bergman Associates
- Wilson and Wilson Information and Government Relations Service
- Wine America, The National Association of American Wineries
- WMAL Radio
- Wyeth
- Wyndham International