| Bridge Information Systems |
| Bristol-Myers Squibb* |
| British Telecom |
| Brophy Properties, Inc. |
| CACI* |
| Cadwalader Wickersham & Taft |
| Cafritz Company* |
| Caliber-Spatium |
| Canon USA, Inc. |
| Capital Corporate Federal Credit Union* |
| Capital Hilton Hotel |
| Cardinal Bank |
| CarrAmerica Realty Corporation* |
| Caspian |
| Cassidy & Pinkard Colliers* |
| Catawba Corporation |
| CB Richard Ellis* |
| Cellar Door Productions* |
| CELLULAR ONE |
| Center for Strategic and International Studies |
| Central Michigan University |
| Charles E. Smith Company/Vornado* |
| City Interests |
| Clark Realty Capital |
| Cohn and Marks |
| Columbia Hospital for Women |
| Communications Engineering, Inc. |
| Compaq Computer Corporation |
| Compass Management & Leasing |
| Computech |
| Computer Sciences Corporation |
| Comsat Corporation |
| Concord Partners |
| Congressional Quarterly, Inc. |
| Corinthian College |
| County Department of Human Services |
| Cousins Properties* |
| Cox Washington** |
| CRESA Partners* |
| C-SPAN* |
| Cushman & Wakefield, Inc.* |
| DANAC |
| Dance Place |
| DC Sports & Entertainment Commission |
| Defense Intelligence Agency |
| Deloitte Touche Tohmatsu |
| Democratic National Committee |
| Development Resources Inc. (DRI)* |
| Direct Impact |
| District of Columbia Bar |
| Domus Properties |
| Donatelli Development* |
| Donohoe Real Estate Services* |
| Douglas Development Corporation* |
| Earnest & Christian |
| Earth Tech |
| eCommerce Industries* |
| EDAW |
| Educause |
| Ellis Denning Properties* |
| Emmanuel Christian School |
| Equant |
| Equitable Real Estate Investment |
| Equity Office Properties Trust |
| Exp@nets |
| Experience Works |
| The Keech Company |
| Keizai Koho Center |
| Kelley Drye & Warren LLP* |
| Kettler (formerly KSI Services) |
| Kilpatrick Stockton, LLP |
| Larson, Ball & Gould, Inc |
| LaSalle Partners* |
| Latin American Montessori Bilingual Public Charter School |
| Latin American Youth Center |
| LCOR, Inc. |
| The Lenkin Company |
| Lee Development Group |
| Leydig, Voit & Mayer |
| Lincoln Property Company |
| Lockheed Martin |
| Logicon/Northrop Grumman* |
| Logistics Management Institute* |
| Long & Foster Commercial* |
| Lowe Enterprises Real Estate Group* |
| Loyola College |
| Lucent Technologies* |
| Manulife |
| Marcus & Millichap |
| The Mark Winkler Company* |
| Marriott Corporation* |
| MCI Communications* |
| Medical Office Properties |
| The Michael Companies* |
| Milestone Industrial |
| Millennium Group |
| Mintz Levin** |
| Mitsui Fudosan, Inc. |
| Molson Breweries USA, Inc.* |
| Montgomery Oaks Management, Inc. (MOMI) |
| Monument Realty LLC* |
| Moore & Associates |
| NACCHO |
| National Association for Bilingual Education |
| National Association of Federal Credit Unions |
| National Association of Life Underwriters |
| National Association of Wholesaler-Distributors |
| National Automated Clearing House Association |
| National Beer Wholesalers Association |
| National Club Association |
| National Retail Federation |
| National School Boards Association |
| Navy Federal Credit Union* |
| Net.com |
| Netrix Corporation |
| New York University |
| Nixon Peabody, LLP** |
| Northrop Grumman Information Technology* |
| Northwest Federal Credit Union |
| NV Commercial* |
| NV Land* |
| NV Properties* |
| Ocular Networks |
| Office of Technology Assessment |
| Olives Restaurant |
| Omni Construction Company* |
| Online Office Supplies* |
| Orr Partners* |
| Packing Materials Manufacturing Institute |
| Pan American Health Organization |
| Panasonic |
| Technica Corporation |
| Teleglobe Communications |
| Template Software, Inc. |
| Texas Instruments |
| Thalia LLC |
| The Tower Companies |
| Thompson Publishing Group |
| Trammell Crow Company* |
| Transwestern Investment Company* |
| Travel Industry Associaton** |
| Trendway, Furniture Showroom |
| Trinity Centre, LLC |
| Tucker Alan |
| Turner Construction Company |
| U.S. Citizenship and Immigration Services |
| U.S. Department of Education |
| U.S. Department of Housing and Urban Development |
| U.S. Department of the Interior |
| U.S. Department of Justice |
| U.S. Department of State |
| U.S. Fish and Wildlife Service* |
| U.S. Patent and Trademark Office |
| U.S. Senate Federal Credit Union* |
| United Airlines |
| United Nations, New York, New York |
| United Press International |
| United Way of America |
| Varsity Retail Store |
| Velocita Corporation |
| Ventana Productions, Inc. |
| Venturehouse Group |
| Veritect |
| Verizon |
| Visions, Inc. |
| Volkswagen** |
| Volunteers of America* |
| Walker & Company |
| Warner Commercial |
| Washington Business Journal |
| Washington Convention Center |
| Washington Counsel |
| The Washington Opera* |
| Washington Real Estate Investment Trust* |
| Washington Sports Clubs |
| Washingtonpost.Newsweek Interactive |
| Watergate Office Building |
| Watkins, Meegan, Drury* |
| Watson Wyatt Worldwide** |
| Weinberg, Bergeson & Neuman |
| Wells & Associates |
| West, Lane & Schlager* |
| Westerra Development Corp.* |
| WETA Public Radio/TV Headquarters* |
| Wilkinson Barker Knauer & Quinn** |
| William C. Smith & Co.* |
| Wilmer, Cutler & Pickering |
| World Airways* |
| Wright Patman Congressional Federal Credit Union* |
| Xerox Corporation* |
| Yellowbrix |
| Zuckerman Gravely |
| Zuckerman Spaeder LLP |