| Science and Environment Fund | Washington, DC |
| Science and Public Policy Institute | Washington, DC |
| Score Foundation | Washington, DC |
| Score International (Until June 2006) | Washington, DC |
| Scott Powell Memorial Fund (Until December 2006) | Washington, DC |
| Scottish Rite Foundation Southern Jurisdiction USA Inc. | Washington, DC |
| Scottish Rite Research Society | Washington, DC |
| Scrap Tire Research and Education Foundation Inc. | Washington, DC |
| Scruples Corporation | Washington, DC |
| Search for Common Ground | Washington, DC |
| Seattle Affordable Housing Inc. | Washington, DC |
| Seaweb | Washington, DC |
| Second Chance Employment Services Inc. (Until December 2005) | Washington, DC |
| Second District Religious Educational and Charitable | Washington, DC |
| Securities and Exchange Commision Historical Society | Washington, DC |
| See Forever Foundation Reid H. Weingarten | Washington, DC |
| Seed Foundation Inc. | Washington, DC |
| Seed Public Charter School of Washington D. C. | Washington, DC |
| Seeds Haiti Inc. Haitian Assistance Foundation | Washington, DC |
| Segd (Until December 2004) | Washington, DC |
| Seiu Education & Support Fund | Washington, DC |
| Self Help Foundation Inc. (Until December 2005) | Washington, DC |
| Self Reliance Foundation | Washington, DC |
| Self-Insurance Trust of Washington Hospital Center | Washington, DC |
| Self-Revelation Church of Absolute Monism -Non-Sectarian- | Washington, DC |
| Selous Foundation | Washington, DC |
| Senate Employees Child Care Center Inc. | Washington, DC |
| Senior Citizens Health and Safety Corporation Inc. (Until September 2006) | Washington, DC |
| Senior Executives Association Professional Development League | Washington, DC |
| Senior Living Foundation of the American Foreign Service Inc. | Washington, DC |
| Sequoia Presidential Yacht Foundation (Until November 2004) | Washington, DC |
| Sequoia Professional Development Corporation | Washington, DC |
| Serenity Inc. (Until December 2006) | Washington, DC |
| Serenity Players | Washington, DC |
| Servants of the Lord and the Virgin of Matara | Washington, DC |
| Servicemembers Legal Defense Network Inc. | Washington, DC |
| Set Point Inc. (Until December 2006) | Washington, DC |
| Setting Priorities for Retirement Years Foundation | Washington, DC |
| Sewing Opportunity Neverending Inc. (Until December 2007) | Washington, DC |
| Sexual Minority Youth Assistance League | Washington, DC |
| Shafeek Nader Trust for the Community Interest Inc. | Washington, DC |
| Shakespeare Oxford Society | Washington, DC |
| Shakespeare Theatre | Washington, DC |
| Shammah Ministries Inc. | Washington, DC |
| Share Our Strength Inc. | Washington, DC |
| Share-A-Ride International Inc. | Washington, DC |
| Shashamane Settlement Community Development Foundation | Washington, DC |
| Shaw Coalition Redevelopment Corporation | Washington, DC |
| Shaw Community Ministry Inc. | Washington, DC |
| Shaw Ecovillage Project | Washington, DC |
| Shaw Heritage Trust Inc. | Washington, DC |
| Shaw Main Streets Inc. (Until December 2007) | Washington, DC |
| Shawn Allyce White Foundation | Washington, DC |
| Sheet Metal Workers International Scholarship Foundation Inc. | Washington, DC |
| Sheet Metal Workers International Scholarship Fund | Washington, DC |
| Shenpen Fund (Until December 2005) | Washington, DC |
| Sheridan Kalorama Historical Association Inc. | Washington, DC |
| Sheridan School Inc. | Washington, DC |
| Sherman Charitable Foundation Inc. 4 | Washington, DC |
| Sherman S. Howard Day Care Center Inc. | Washington, DC |
| Shiloh Apostolic Church International Inc. | Washington, DC |
| Shiloh Church of God Seventh Day | Washington, DC |
| Shiloh Community and Economic Development Corp (Until December 2006) | Washington, DC |
| Shiloh Full Gospel Baptist Church Inc. | Washington, DC |
| Shook Museum Foundation (Until December 2007) | Washington, DC |
| Shrewsbury School Foundation Inc. | Washington, DC |
| Sibley Memorial Hospital Lucy Webb Hayes Natl Train Sc | Washington, DC |
| Sibley Plaza Resident Association Inc. | Washington, DC |
| Sickle Cell Association of the Nati Onal Capital Area Inc. | Washington, DC |
| Sickle Cell Disease Association of Greater Washington Inc. | Washington, DC |
| Sidwell Friends School | Washington, DC |
| Sidwell Friends School Rowing | Washington, DC |
| Sierra Leone War Victims Foundation (Until December 2004) | Washington, DC |
| Sight Savers International Inc. (Until December 2004) | Washington, DC |
| Sigma Delta Chi Foundation of Washington D. C. 4 | Washington, DC |
| Sign of Jonah Accupuncture Clinic Inc. | Washington, DC |
| Sign of the Times Cultural Workshop & Gallery Inc. | Washington, DC |
| Sikh Cultural Society of Washington D. C. Inc. | Washington, DC |
| Sinai House A. K. A. Raphael House | Washington, DC |
| Singa Incorporated | Washington, DC |
| Sino-American Cultural Society Inc. | Washington, DC |
| Sisters Empowered to Promote Interests & Opportunities in Arts | Washington, DC |
| Sisters for Excellence Inc. (Until September 2005) | Washington, DC |
| Site Institute Inc. (Until December 2006) | Washington, DC |
| Six Schools Inc. | Washington, DC |
| Sk Shurberg-Klein Foundation Inc. 4 | Washington, DC |
| Slovak Relief Fund Inc. | Washington, DC |
| Small Business Research and Education Council | Washington, DC |
| Small Enterprise Assistance Funds | Washington, DC |
| Small Enterprise Education and Promotion Network | Washington, DC |
| Small Favors Foundation Inc. 4 | Washington, DC |
| Smart Growth America (Until June 2006) | Washington, DC |
| Smart Inc. | Washington, DC |
| Smartish Pace (Until December 2006) | Washington, DC |
| Smith College Class of 1966 | Washington, DC |
| Smith Farm Ltd. | Washington, DC |
| Smithsonian Astrophysical Observatory of the Smithsonian Inst. | Washington, DC |
| Smithsonian Early Enrichment Center Inc. | Washington, DC |
| Smithsonian Institution | Washington, DC |
| Smithsonian Research Foundation | Washington, DC |
| Smithsonian Tropical Research Institute of the Smithsonian Inst. | Washington, DC |
| Smooth & Easy Hand Dance Institute | Washington, DC |
| Smyrna Ministries International | Washington, DC |
| So Others May Survive Inc. (Until December 2006) | Washington, DC |
| Soccer on the Hill Inc. | Washington, DC |
| Social Hygiene Society of Metro Washington | Washington, DC |
| Social Investment Forum Foundation Inc. | Washington, DC |
| Social Marketing Institute (Until December 2004) | Washington, DC |
| Society for American Archaeology | Washington, DC |
| Society for Environmental Graphic Design Education Foundation | Washington, DC |
| Society for Gynecological Investigation | Washington, DC |
| Society for History in the Federal Government 5 | Washington, DC |
| Society for International Development Washington Chapt | Washington, DC |
| Society for Neuroscience 1 | Washington, DC |
| Society for Personality Assessment Foundation (Until December 2007) | Washington, DC |
| Society for Prevention Research Incorporated | Washington, DC |
| Society for Psychophysiological Research Inc. | Washington, DC |
| Society for Public Health Education Inc. | Washington, DC |
| Society for the Advancement of Womens Health Research Inc. | Washington, DC |
| Society for the Arts in Healthcare | Washington, DC |
| Society for the Preservation of Ancient Churches Inc. (Until December 2004) | Washington, DC |
| Society for the Preservation of Natural History Collections | Washington, DC |
| Society for the Psychological Study of Social Issues | Washington, DC |
| Society for the Study of Black Religion | Washington, DC |
| Society for the Study of Varieties of Religious Experience (Until December 2004) | Washington, DC |
| Society of Friends of Abkhazia (Until December 2005) | Washington, DC |
| Society of General Internal Medicine | Washington, DC |
| Society of Industrial and Office Realtors Educational Fund | Washington, DC |
| Society of Primary Care Policy Fellows | Washington, DC |
| Society of Wine Educators Inc. | Washington, DC |
| Society of Woman Geographers | Washington, DC |
| Society of the Cincinnati | Washington, DC |
| Sojourners | Washington, DC |
| Sojourners Neighborhood Center | Washington, DC |
| Sol & Soul Inc. (Until December 2004) | Washington, DC |
| Solar Electric Light Fund | Washington, DC |
| Solar Light for Churches of Africa Inc. | Washington, DC |
| Sole to Sole Inc. (Until December 2007) | Washington, DC |
| Solomon Project | Washington, DC |
| Solomons Temple Holiness Church | Washington, DC |
| Songwriters Association of Washington Inc. | Washington, DC |
| Sonia & Louis Rothschild Family Foundation 4 | Washington, DC |
| Sons and Daughters in Christ African Methodist Episcopal Zion C. | Washington, DC |
| Sons and Daughters of Africa Sada Inc. Africanization Society | Washington, DC |
| Sons of Italy in America Supreme Lodge 126 | Washington, DC |
| Sonship Bible Institute | Washington, DC |
| Sonya Grillo Durham Memorial Scholarship Fund | Washington, DC |
| Sophia Foundation (Until December 2005) | Washington, DC |
| Sophies Parlor Media Collective Inc. | Washington, DC |
| Sos Childrens Village USA Inc. | Washington, DC |
| Soul Saving Center of Christ | Washington, DC |
| South Asian Reach Inc. (Until December 2006) | Washington, DC |
| South Carolina State University National Alumni Association 1 | Washington, DC |
| South East Consortium for International Development | Washington, DC |
| Southeast Academy of Scholastic Excellence Public Charter School | Washington, DC |
| Southeast Asia Resource Action Center Searac | Washington, DC |
| Southeast Childrens Fund Inc. | Washington, DC |
| Southeast Citizens for Smart Development (Until June 2005) | Washington, DC |
| Southeast Crisis Pregnancy Center | Washington, DC |
| Southeast Dc Partners (Until December 2004) | Washington, DC |
| Southeast Neighbors | Washington, DC |
| Southeastern University | Washington, DC |
| Southern Africa Environment Project | Washington, DC |
| Southern Africa Legal Services and Legal Education Project Inc. | Washington, DC |
| Southern Africa Wildlife Trust Inc. | Washington, DC |
| Southern Bethany Baptist Church | Washington, DC |
| Southern Friendship Missionary Baptist Church | Washington, DC |
| Southern Group of Foresters Inc. | Washington, DC |
| Southern Sudanese Community | Washington, DC |
| Southern Sudanese Voice for Freedom Inc. (Until December 2004) | Washington, DC |
| Southwest Child Development Center Payroll Account | Washington, DC |
| Southwest Community House Association | Washington, DC |
| Southwest Neighborhood Assembly Inc. | Washington, DC |
| Southwest Renaissance Development Corporation | Washington, DC |
| Sowing Seeds Ministry Incorporated (Until December 2006) | Washington, DC |
| Spain - USA Foundation | Washington, DC |
| Spanish Catholic Center Inc. | Washington, DC |
| Spanish Education Development Center | Washington, DC |
| Spanish Education for Women | Washington, DC |
| Speac Society for Protection of Every Animal and Child | Washington, DC |
| Special Education Advocacy Services for Chikdren and Youth (Until December 2006) | Washington, DC |
| Special Libraries Association | Washington, DC |
| Special Olympics District of Columbia Inc. | Washington, DC |
| Special Olympics Endowment Fund Inc. | Washington, DC |
| Special Olympics Inc. | Washington, DC |
| Species Survival Network | Washington, DC |
| Speech Simulation Research Foundation | Washington, DC |
| Spina Bifida Association of America | Washington, DC |
| Spina Bifida Association of America Foundation | Washington, DC |
| Spingarn Alumni S. Club Inc. | Washington, DC |
| Spirit Food Ministries | Washington, DC |
| Spirit House (Until December 2005) | Washington, DC |
| Spirit of Liberty Church | Washington, DC |
| Spirit of Sovereignty Foundation | Washington, DC |
| Spirit of the Living God Christian Center Inc. | Washington, DC |
| Spiritual Science Centre for Wholistic Counseling of Wash Dc | Washington, DC |
| Spiritual Tabernacle and Save the Youth Ministries Nation-Wide Inc. | Washington, DC |
| Sports & Entertainment Social Marketing Enterprises | Washington, DC |
| Spring Creek Foundation Inc. 4 | Washington, DC |
| Springboard 2000 Enterprises Inc. (Until December 2004) | Washington, DC |
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