| American Friends of Barry & Martins Charity Inc. (Until December 2007) | Washington, DC |
| American Friends of Britains Waterways Inc. (Until December 2004) | Washington, DC |
| American Friends of Cancer Relief Macmillan Fund | Washington, DC |
| American Friends of Chicken Shed Inc. (Until December 2006) | Washington, DC |
| American Friends of Christ Church Inc. | Washington, DC |
| American Friends of Claremont Fan Court School | Washington, DC |
| American Friends of Crossroads Caring for Carers Inc. (Until December 2004) | Washington, DC |
| American Friends of Eton College (Until December 2004) | Washington, DC |
| American Friends of Hantam Community Education Inc. (Until December 2005) | Washington, DC |
| American Friends of Heriot-Watt University | Washington, DC |
| American Friends of Hungarian and Romanian Children in Need Ltd. (Until December 2007) | Washington, DC |
| American Friends of Imperial Cancer Research Fund Inc. | Washington, DC |
| American Friends of London School of Hygiene & Tropical Medicine Inc. | Washington, DC |
| American Friends of London Zoo Inc. (Until December 2004) | Washington, DC |
| American Friends of Nch Inc. (Until December 2004) | Washington, DC |
| American Friends of Romania Inc. | Washington, DC |
| American Friends of Sherborne Inc. (Until December 2004) | Washington, DC |
| American Friends of St. Peters Eaton Square Inc. (Until December 2004) | Washington, DC |
| American Friends of Turkey Inc. | Washington, DC |
| American Friends of Waterford Kamhlaba | Washington, DC |
| American Friends of Wigmore Hall Inc. (Until December 2006) | Washington, DC |
| American Friends of Wilton Park Inc. 5 | Washington, DC |
| American Friends of Yctv Inc. (Until June 2004) | Washington, DC |
| American Friends of for Survival (Until December 2005) | Washington, DC |
| American Friends of the Alexander Von Humboldt Foundation | Washington, DC |
| American Friends of the Anne Frank House | Washington, DC |
| American Friends of the Jewish University in Moscow Inc. (Until December 2005) | Washington, DC |
| American Friends of the Monteverdi Choir & Orchestra Inc. | Washington, DC |
| American Friends of the National Film & Television School | Washington, DC |
| American Friends of the National Museum of Romania Inc. (Until December 2004) | Washington, DC |
| American Friends of the Private University of Bolivia | Washington, DC |
| American Friends of the River & Rowing Museum Inc. (Until December 2005) | Washington, DC |
| American Friends of the Royal Air Force Museum Inc. (Until March 2006) | Washington, DC |
| American Friends of the Royal Institution Inc. | Washington, DC |
| American Friends of the Royal Society Inc. | Washington, DC |
| American Friends of the Russian Country Estate Inc. | Washington, DC |
| American Friends of the Russian Jewish Congress (Until December 2005) | Washington, DC |
| American Friends of the Scottish Chamber Orchestra Inc. (Until December 2006) | Washington, DC |
| American Friends of the University of Ulster | Washington, DC |
| American Friends of the Vaclay Havel Foundation | Washington, DC |
| American Friends of the William Harvey Research Institute Inc. | Washington, DC |
| American Fund for Charities | Washington, DC |
| American Fund for Southampton University | Washington, DC |
| American Fund for Winchester College (Until December 2004) | Washington, DC |
| American Fund for the Restoration of Russian Monasteries Inc. (Until December 2004) | Washington, DC |
| American Fund of the National Maritime and the Royal Observatoy (Until December 2006) | Washington, DC |
| American Gas Foundation | Washington, DC |
| American Geophysical Union | Washington, DC |
| American Gold Star Mothers Inc. | Washington, DC |
| American Health Lawyers Association Inc. | Washington, DC |
| American Health Quality Association | Washington, DC |
| American Health Quality Foundation Inc. | Washington, DC |
| American Hellenic Institute Foundation Inc. | Washington, DC |
| American Historical Association | Washington, DC |
| American Horse Protection Association Inc. | Washington, DC |
| American Hospice Foundation Inc. | Washington, DC |
| American Hotel and Lodging Educational Foundation Inc. | Washington, DC |
| American Humanist Association 1 | Washington, DC |
| American Immigration Law Foundation | Washington, DC |
| American Institute for Cancer Research | Washington, DC |
| American Institute for Contemporary German Studies John Hopkins Univ | Washington, DC |
| American Institute for Medical and Bioligical Engineering | Washington, DC |
| American Institute of Architects College of Fellows Fund Inc. (Until December 2006) | Washington, DC |
| American Institute of Architecture Students Inc. | Washington, DC |
| American Institutes for Research in the Behavioral Sciences | Washington, DC |
| American Insurance Highway Safety Association Inc. | Washington, DC |
| American International Health Alliance Inc. | Washington, DC |
| American Israel Education Foundation Inc. | Washington, DC |
| American Jewish Press Association | Washington, DC |
| American Journal of Preventive Medicine | Washington, DC |
| American Kurdish Information Network | Washington, DC |
| American Kwongtung Association Washington Dc | Washington, DC |
| American Labor Education Center Inc. | Washington, DC |
| American Lands Alliance | Washington, DC |
| American Legacy Foundation | Washington, DC |
| American Legal Fondation | Washington, DC |
| American Legislative Exchange Council | Washington, DC |
| American Lung Association of the District of Columbia | Washington, DC |
| American Masters of Laws Association (Until December 2006) | Washington, DC |
| American Mothers Inc. 1 | Washington, DC |
| American National Red Cross | Washington, DC |
| American Near East Refugee Aid Inc. | Washington, DC |
| American News Women Foundation | Washington, DC |
| American News Womens Club Inc. | Washington, DC |
| American Nurses Foundation Inc. | Washington, DC |
| American Oceans Campaign | Washington, DC |
| American Patriot Foundation Inc. | Washington, DC |
| American Peace Society 3 | Washington, DC |
| American Pharmaceutical Institute 4 | Washington, DC |
| American Pharmacists Association Foundation | Washington, DC |
| American Planning Association | Washington, DC |
| American Political Items Collectors | Washington, DC |
| American Political Science Association | Washington, DC |
| American Principles Foundation (Until December 2004) | Washington, DC |
| American Psychiatric Press Inc. | Washington, DC |
| American Psychological Association Inc. 1 | Washington, DC |
| American Psychological Foundation Inc. | Washington, DC |
| American Psychological Society | Washington, DC |
| American Public Health Association Inc. | Washington, DC |
| American Public Human Services Association | Washington, DC |
| American Public Transit Foundation | Washington, DC |
| American Recreation Coalition | Washington, DC |
| American Registry of Pathology | Washington, DC |
| American Rehabaction Network Inc. | Washington, DC |
| American Rivers Inc. | Washington, DC |
| American Road and Transportation Builders Assoc Transportation | Washington, DC |
| American Rollerskaters Inc. | Washington, DC |
| American Safety Child Safety Council | Washington, DC |
| American Sleep Apnea Association Inc. | Washington, DC |
| American Small Business Alliance Education Fund | Washington, DC |
| American Society for Bone and Mineral Research | Washington, DC |
| American Society for Engineering Education | Washington, DC |
| American Society for Microbiology | Washington, DC |
| American Society for Public Administration 1 | Washington, DC |
| American Society of Access Professionals Asap | Washington, DC |
| American Society of Appraisers Education Foundation | Washington, DC |
| American Society of Civil Engineers Foundation Inc. | Washington, DC |
| American Society of Hematology Inc. | Washington, DC |
| American Society of Hypertension Inc-Mid-Atlantic Chapter | Washington, DC |
| American Society of Interior Designers Educational Foundation I. | Washington, DC |
| American Society of International Law | Washington, DC |
| American Society of Nephrology Inc. | Washington, DC |
| American Sociological Association | Washington, DC |
| American Sovereignty Task Force | Washington, DC |
| American Studies Assn | Washington, DC |
| American Studies Center | Washington, DC |
| American Task Force for Lebanon | Washington, DC |
| American Tax Policy Institute | Washington, DC |
| American Tax Reform Foundation | Washington, DC |
| American Telemedicine Association | Washington, DC |
| American Textile Foundation Inc. | Washington, DC |
| American Tort Reform Foundation | Washington, DC |
| American Turkish Association Inc. | Washington, DC |
| American Universities in Russia Ukraine and New Independent States | Washington, DC |
| American University | Washington, DC |
| American University in Bulgaria | Washington, DC |
| American University in Moscow | Washington, DC |
| American University of Rome | Washington, DC |
| American Uro-Gynecologic Society | Washington, DC |
| American Urogynecologic Society Foundation (Until December 2005) | Washington, DC |
| American Wine Alliance for Research and Education | Washington, DC |
| American Youth Policy Forum | Washington, DC |
| American Youth Symphony | Washington, DC |
| American Youth Work Center | Washington, DC |
| American and African Business Womens Alliance USA (Until June 2007) | Washington, DC |
| American-Russian Cultural Cooperation Foundation | Washington, DC |
| American-Russian Educational Center Inc. | Washington, DC |
| Americanized African Corporation (Until December 2007) | Washington, DC |
| Americans Back in Charge Foundation | Washington, DC |
| Americans United for Separation of Church and State 1 | Washington, DC |
| Americans for Artsakh Inc. (Until December 2007) | Washington, DC |
| Americans for Better Care of the Dying | Washington, DC |
| Americans for Democratic Action Education | Washington, DC |
| Americans for Health Inc. | Washington, DC |
| Americans for Our Heritage and Recreation | Washington, DC |
| Americans for Peace Now National Office | Washington, DC |
| Americans for Prosperity Foundation | Washington, DC |
| Americans for Religious Liberty 4 | Washington, DC |
| Americans for Tax Reform Foundation | Washington, DC |
| Americans for the Arts Inc. | Washington, DC |
| Americas Blood Centers Foundation | Washington, DC |
| Americas Clean Water Foundation | Washington, DC |
| Americas Educational Fund | Washington, DC |
| Americas Families United (Until December 2007) | Washington, DC |
| Americas Future Foundation | Washington, DC |
| Americas Global Foundation Inc. | Washington, DC |
| Americas Health Toghther (Until December 2004) | Washington, DC |
| Americas Wildlife Association for Resource Education Aware | Washington, DC |
| Americorps Alums Inc. | Washington, DC |
| Amerivision Inc. | Washington, DC |
| Amigos of Costa Rica Inc. | Washington, DC |
| Amishav USA | Washington, DC |
| Amma Foundation Inc. | Washington, DC |
| Among Friends Inc. | Washington, DC |
| Amozalla Egede Association of USA | Washington, DC |
| Amy Jacques Garvey Institute Inc. | Washington, DC |
| An Uncommon Legacy Foundation Inc. | Washington, DC |
| Anacostia Bible Church | Washington, DC |
| Anacostia Community Boathouse Association (Until January 2005) | Washington, DC |
| Anacostia Community Outreach Center | Washington, DC |
| Anacostia Coordinating Council Inc. | Washington, DC |
| Anacostia Economic Development Corporation | Washington, DC |
| Anacostia Educational Foundation | Washington, DC |
| Anacostia Football and Education Inc. (Until December 2005) | Washington, DC |
| Anacostia Garden Club Inc. | Washington, DC |
| Anacostia High School Class of 1970 Alumni Association Inc. | Washington, DC |
| Anacostia Neighborhood Museum of the Smithsonian Institution | Washington, DC |
| Anacostia-Congress Heights Ptrshp for the Prevention of Homelessness | Washington, DC |
| Anacostias Promise (Until December 2006) | Washington, DC |
| Ananda Shanti Yoga Society Inc. | Washington, DC |
| Anas Gold Childrens Theater | Washington, DC |
| Anchor Housing Corporation | Washington, DC |
| Ancient & Accepted Scottish Rite of Free Masonry So Juris USA 126 | Washington, DC |
| Ancient & Accepted Scottish Rite of Free Masonry Southern 126 | Washington, DC |
| Andrew Cacho African Drummers & Dancers Economic Development Inc. | Washington, DC |
| Andrews Community Fund | Washington, DC |
| Angel Youth Outreach Ministry (Until January 2007) | Washington, DC |
| Angelina Fund Inc. 4 | Washington, DC |
| Angels and Associates Inc. (Until December 2007) | Washington, DC |
| Anglers All Youth Fund | Washington, DC |
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