Data / Nonprofits / District of Columbia / Washington
Nonprofits in Washington, DC: 14,107 registered with the IRS
14,107 nonprofits are registered with the IRS in Washington, DC, 10,884 of them 501(c)(3) charities; the 6,442 that report revenue took in $95.20 billion. The largest by revenue: Aarp ($10.97 billion), Risant Health Inc ($6.73 billion), American National Red Cross ($3.92 billion). Most common causes: education (1,497), arts, culture and humanities (948), community improvement and capacity building (942).
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The 500 largest by revenue
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Aarp | Civil rights, social action and advocacy | 501(c)(4) | 1967 | $10.97 billion | $13.06 billion | 2024-12 |
| Risant Health Inc | Health care | 501(c)(3) | 2024 | $6.73 billion | $2.97 billion | 2024-12 |
| American National Red Cross | Human services | 501(c)(3) | 1938 | $3.92 billion | $5.05 billion | 2025-06 |
| Gavi Alliance | International, foreign affairs and national security | 501(c)(3) | 2009 | $2.55 billion | $9.51 billion | 2024-12 |
| Georgetown University | Education | 501(c)(3) | 1973 | $2.30 billion | $6.88 billion | 2025-06 |
| Smithsonian Institute | Arts, culture and humanities | 501(c)(3) | 1924 | $1.91 billion | $7.89 billion | 2025-09 |
| Childrens Hospital | Health care | 501(c)(3) | 1997 | $1.87 billion | $2.50 billion | 2025-06 |
| Howard University | Education | 501(c)(3) | 1940 | $1.43 billion | $2.98 billion | 2025-06 |
| American University | Education | 501(c)(3) | 1935 | $929.6 million | $2.59 billion | 2025-06 |
| Fiat Lux Risk and Insurance Company | Mutual and membership benefit | 501(c)(3) | 2015 | $842.3 million | $2.57 billion | 2025-06 |
| American Foreign Service Protective Association | 501(c)(9) | 1950 | $827.1 million | $267.3 million | 2025-12 | |
| American Chemical Society | Science and technology | 501(c)(3) | 1946 | $819.1 million | $2.23 billion | 2024-12 |
| Paypal Charitable Giving Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2011 | $813.4 million | $106.3 million | 2024-12 |
| New Venture Fund | Environment | 501(c)(3) | 2007 | $662.4 million | $624.9 million | 2024-12 |
| Securities Investor Protection Corporation | 501(c)(6) | 1971 | $625.3 million | $5.09 billion | 2024-12 | |
| Future Forward USA Action | Public and societal benefit | 501(c)(4) | 2018 | $615.3 million | $26.7 million | 2024-12 |
| National Fish and Wildlife Foundation | Animal-related | 501(c)(3) | 1986 | $584.2 million | $3.56 billion | 2025-09 |
| Legal Services Corporation | Crime and legal-related | 501(c)(3) | 1975 | $572.8 million | $208.1 million | 2025-09 |
| United Mine Workers of America 1993 Benefit Plan and Trust | 501(c)(9) | 1996 | $541.6 million | $216.1 million | 2024-12 | |
| Pharmaceutical Research and Manufacturers of America | 501(c)(6) | 1959 | $521.3 million | $349 million | 2024-12 | |
| John F Kennedy Center for the Performing Arts | Arts, culture and humanities | 501(c)(3) | 1959 | $516.6 million | $901 million | 2025-09 |
| Abax Ventures Inc | Public and societal benefit | 501(c)(4) | 2024 | $482.1 million | $960 million | 2024-12 |
| Association of Universities for | Science and technology | 501(c)(3) | 1961 | $468.8 million | $146.6 million | 2025-09 |
| Pew Charitable Trusts | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $468 million | $1.46 billion | 2025-06 |
| The Aspen Institute Inc | Social science | 501(c)(3) | 1951 | $443.8 million | $756.6 million | 2024-12 |
| Catholic University of America | Education | 501(c)(3) | 1973 | $425.4 million | $980.3 million | 2025-04 |
| Medical Faculty Associates Inc | Health care | 501(c)(3) | 2000 | $418.6 million | $274.4 million | 2025-06 |
| National Education Association of the United States | 501(c)(5) | 1970 | $408.9 million | $432.7 million | 2025-08 | |
| Assets Under Movement | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2017 | $396.9 million | $361.1 million | 2024-12 |
| Laborers-Employers Benefit Plan Collection Trust | 501(c)(5) | 1995 | $387.5 million | $5.1 million | 2025-12 | |
| World Wildlife Fund Inc | Environment | 501(c)(3) | 1991 | $366.7 million | $777.3 million | 2025-06 |
| National Academy of Sciences | Science and technology | 501(c)(3) | 1925 | $361.7 million | $1.59 billion | 2024-12 |
| Blood Cancer United Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2001 | $358.7 million | $532.2 million | 2025-06 |
| National Public Radio Inc | Arts, culture and humanities | 501(c)(3) | 1971 | $354.1 million | $424.6 million | 2025-09 |
| Association of American Medical Colleges | Education | 501(c)(3) | 1957 | $354 million | $696.9 million | 2025-06 |
| National Geographic Society | Education | 501(c)(3) | 1938 | $340.5 million | $2.46 billion | 2025-12 |
| World Central Kitchen Incorporated | International, foreign affairs and national security | 501(c)(3) | 2012 | $327.8 million | $221.6 million | 2024-12 |
| Trust for the National Mall | Arts, culture and humanities | 501(c)(3) | 2002 | $322.1 million | $132.7 million | 2025-12 |
| Windward Fund | Environment | 501(c)(3) | 2015 | $308.2 million | $432.7 million | 2024-12 |
| Howard University Hospital Corp | Health care | 501(c)(3) | 2025 | $308.2 million | $177.2 million | 2025-06 |
| Population Services International | 501(c)(3) | 1971 | $306.3 million | $257.6 million | 2024-12 | |
| National Endowment for Democracy | Public and societal benefit | 501(c)(3) | 1985 | $298 million | $165.3 million | 2025-09 |
| Global Impact | International, foreign affairs and national security | 501(c)(3) | 1983 | $290.4 million | $283.6 million | 2025-06 |
| International City Management Association Retirement Corporation | Mutual and membership benefit | 501(c)(3) | 1973 | $290.1 million | $704.3 million | 2024-12 |
| Sixteen Thirty Fund | Environment | 501(c)(4) | 2009 | $282.2 million | $106.5 million | 2024-12 |
| Service Employees International Union | 501(c)(5) | 1943 | $280.8 million | $405.8 million | 2024-12 | |
| International Baccalaureate Organization | Education | 501(c)(3) | 2008 | $270.5 million | $479.9 million | 2025-06 |
| Kipp DC Public Charter Schools | Education | 501(c)(3) | 2001 | $263.1 million | $519.3 million | 2025-06 |
| United Food and Commercial Workers International Union | Employment | 501(c)(5) | 1941 | $261.8 million | $677.3 million | 2024-12 |
| American Petroleum Institute | 501(c)(6) | 1938 | $252.3 million | $109.9 million | 2024-12 | |
| Southeastern Universities Research Association Inc | Science and technology | 501(c)(3) | 2008 | $251.9 million | $54.4 million | 2025-09 |
| Gallaudet University | Education | 501(c)(3) | 1960 | $237 million | $565.5 million | 2025-09 |
| Patient Access Network Foundation | 501(c)(3) | 2004 | $230.8 million | $533.5 million | 2025-12 | |
| International Brotherhood of Electrical Workers | 501(c)(5) | 1940 | $227.8 million | $2.76 billion | 2025-06 | |
| Chamber of Commerce of the United States of America | 501(c)(6) | 1940 | $225.8 million | $147 million | 2024-12 | |
| International Brotherhood of Electrical Workers | 501(c)(5) | 1940 | $224.1 million | $950.5 million | 2025-06 | |
| International Brotherhood of Teamsters | 501(c)(5) | 1941 | $223.8 million | $609.3 million | 2024-12 | |
| American Federation of Teachers | 501(c)(5) | 1945 | $220.4 million | $129.1 million | 2025-06 | |
| Humane World for Animals Inc | Animal-related | 501(c)(3) | 1956 | $216.5 million | $543.2 million | 2025-12 |
| World Resources Institute | International, foreign affairs and national security | 501(c)(3) | 1982 | $213 million | $558.9 million | 2025-09 |
| National Spectrum Consortium Inc | Science and technology | 501(c)(6) | 2022 | $212.7 million | $34.9 million | 2025-09 |
| Health Services for Children With Special Needs Inc | Human services | 501(c)(3) | 1994 | $212.1 million | $86 million | 2025-06 |
| Hopewell Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $208 million | $172.9 million | 2024-12 |
| Forgood Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2001 | $204.4 million | $96.2 million | 2024-12 |
| Aarp Foundation | Human services | 501(c)(3) | 1963 | $202.9 million | $728 million | 2024-12 |
| United States Holocaust Memorial Council | Arts, culture and humanities | 501(c)(3) | 1991 | $198.7 million | $1.00 billion | 2025-09 |
| American Federation of State County & Municipal Employees | 501(c)(5) | 1957 | $190.3 million | $393.5 million | 2024-12 | |
| Special Olympics Inc | Recreation and sports | 501(c)(3) | 1969 | $186.4 million | $164.2 million | 2024-12 |
| American Chemistry Council | 501(c)(6) | 1942 | $186.1 million | $167.4 million | 2024-12 | |
| DKT International Inc | International, foreign affairs and national security | 501(c)(3) | 1985 | $182.3 million | $393.4 million | 2025-12 |
| Childrens National | Health care | 501(c)(3) | 1990 | $180.2 million | $1.74 billion | 2025-06 |
| Neighborhood Reinvestment Corp | 501(c)(3) | 1980 | $179.2 million | $67.9 million | 2025-09 | |
| America Votes | Community improvement and capacity building | 501(c)(4) | 2010 | $176.3 million | $22.3 million | 2025-06 |
| American Near East Refugee Aid Inc | International, foreign affairs and national security | 501(c)(3) | 1968 | $176.3 million | $66.1 million | 2025-05 |
| American Bankers Association | 501(c)(6) | 1977 | $176.1 million | $958.4 million | 2025-08 | |
| National Park Foundation | 501(c)(3) | 1981 | $173.8 million | $579.1 million | 2025-09 | |
| Greater Washington Urban League Inc | Human services | 501(c)(3) | 1953 | $170.2 million | $27.8 million | 2025-09 |
| Unity Health Care Inc | Health care | 501(c)(3) | 1988 | $166.8 million | $121.8 million | 2024-12 |
| National Football League Players Association | Employment | 501(c)(5) | 1971 | $163.5 million | $1.31 billion | 2025-02 |
| Acdi Voca | International, foreign affairs and national security | 501(c)(3) | 1966 | $162.5 million | $124.4 million | 2024-12 |
| Means Database Inc | Food, agriculture and nutrition | 501(c)(3) | 2016 | $161.6 million | $832,491 | 2024-12 |
| League of Conservation Voters Inc | Civil rights, social action and advocacy | 501(c)(4) | 1991 | $159.3 million | $37.1 million | 2024-12 |
| United Negro College Fund Inc | Education | 501(c)(3) | 2004 | $158.9 million | $892.4 million | 2025-03 |
| Friendship Public Charter School | Education | 501(c)(3) | 1999 | $157.4 million | $243.9 million | 2025-06 |
| Project Hope - the People-To-People Health Foundation Inc | International, foreign affairs and national security | 501(c)(3) | 1999 | $157.3 million | $85.7 million | 2025-12 |
| United Mission for Relief and Development Umr | Public safety, disaster preparedness and relief | 501(c)(3) | 2011 | $149.9 million | $2 million | 2024-12 |
| Communications Workers of America Afl-Cio CLC | 501(c)(5) | 1950 | $147.7 million | $588.2 million | 2025-05 | |
| International Research and Exchanges Board Inc | International, foreign affairs and national security | 501(c)(3) | 1991 | $146.6 million | $76 million | 2025-06 |
| Community Partnership for the Prevention of Homelessness | 501(c)(3) | 1990 | $146.3 million | $156.2 million | 2025-09 | |
| American Association of State Highway & Transportation Officials | Community improvement and capacity building | 501(c)(3) | 1944 | $143.8 million | $260.1 million | 2025-06 |
| Corporation for Travel Promotion | Community improvement and capacity building | 501(c)(6) | 2011 | $139.9 million | $293.6 million | 2025-09 |
| Elizabeth Glaser Pediatric Aids Foundation | Medical research | 501(c)(3) | 1989 | $138 million | $37.7 million | 2024-12 |
| Laborers International Union of North America | 501(c)(5) | 1940 | $134.2 million | $449.1 million | 2025-12 | |
| Heritage Foundation | Public and societal benefit | 501(c)(3) | 1973 | $133.9 million | $413.8 million | 2024-12 |
| Board of Trustees of National Iam B Enefit Trust Fund | 501(c)(9) | 1975 | $131.4 million | $91.3 million | 2024-12 | |
| American Federation of Labor & Congress of Industrial Orgs | 501(c)(5) | 1956 | $131.1 million | $159.5 million | 2025-06 | |
| Friends of the World Food Program Inc | Human services | 501(c)(3) | 1995 | $129.8 million | $83.2 million | 2025-09 |
| Urban Institute | Social science | 501(c)(3) | 1968 | $129.6 million | $311.6 million | 2024-12 |
| American Association for the Advancement of Science | Science and technology | 501(c)(3) | 1937 | $129.5 million | $166.3 million | 2024-12 |
| Rfe-Rl Inc | Arts, culture and humanities | 501(c)(3) | 1976 | $129 million | $224 million | 2025-09 |
| Capital Area Food Bank | Food, agriculture and nutrition | 501(c)(3) | 1980 | $128.3 million | $100.3 million | 2025-06 |
| International Food Policy Research Institute | Food, agriculture and nutrition | 501(c)(3) | 1975 | $126 million | $145.1 million | 2024-12 |
| American College of Cardiology Foundation | Diseases, disorders and medical disciplines | 501(c)(3) | 1952 | $125.8 million | $295.8 million | 2024-12 |
| Greater Washington Community Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1974 | $123.2 million | $518.3 million | 2025-03 |
| American Israel Public Affairs Committee | International, foreign affairs and national security | 501(c)(4) | 1968 | $122.5 million | $237.3 million | 2025-09 |
| United Palestinian Appeal Inc | International, foreign affairs and national security | 501(c)(3) | 1979 | $120.7 million | $16 million | 2024-12 |
| Childrens Hospital Foundation | Health care | 501(c)(3) | 1990 | $118 million | $980.2 million | 2025-06 |
| Biotechnology Innovation Organization | 501(c)(6) | 1982 | $117.7 million | $170.1 million | 2024-12 | |
| National Restaurant Association | 501(c)(6) | 1943 | $116.5 million | $200.6 million | 2024-12 | |
| Thurgood Marshall College Fund Inc | Education | 501(c)(3) | 1993 | $116.3 million | $189.4 million | 2025-12 |
| Brookings Institution | Social science | 501(c)(3) | 1940 | $115.7 million | $571.8 million | 2025-06 |
| Pan American Development Foundation Inc | International, foreign affairs and national security | 501(c)(3) | 1964 | $113.5 million | $67.5 million | 2025-09 |
| American Society of Hematology Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 1971 | $112.4 million | $392.3 million | 2025-06 |
| North American Electric Reliability Corp | Community improvement and capacity building | 501(c)(6) | 2006 | $112.4 million | $113.5 million | 2024-12 |
| American Councils for International Education Actr Accels Inc | International, foreign affairs and national security | 501(c)(3) | 1976 | $111.6 million | $60 million | 2025-06 |
| National Committee for Quality Assurance | Health care | 501(c)(3) | 1982 | $111.5 million | $190.7 million | 2025-12 |
| Childrens Research Institute | Medical research | 501(c)(3) | 1990 | $109.4 million | $28.7 million | 2025-06 |
| International Union of Operating Engineers | 501(c)(5) | 1941 | $107.4 million | $582.8 million | 2024-12 | |
| National Democratic Institute for International Affairs | International, foreign affairs and national security | 501(c)(3) | 1984 | $107.2 million | $67.8 million | 2025-09 |
| Confederation of Indian Industry | 501(c)(6) | 1996 | $106.8 million | $88 million | 2025-03 | |
| Aga Khan Foundation USA | International, foreign affairs and national security | 501(c)(3) | 1981 | $106.7 million | $601.9 million | 2025-12 |
| Carnegie Institution of Washington | Science and technology | 501(c)(3) | 1914 | $106.5 million | $1.34 billion | 2025-06 |
| Pact Inc | International, foreign affairs and national security | 501(c)(3) | 1971 | $106.2 million | $58.9 million | 2025-09 |
| Pathfinder International | International, foreign affairs and national security | 501(c)(3) | 1959 | $104.9 million | $70.2 million | 2025-06 |
| National Trust for Historic Preservation in the United States | Arts, culture and humanities | 501(c)(3) | 1950 | $104.9 million | $562.9 million | 2025-06 |
| Our American Future Foundation | Civil rights, social action and advocacy | 501(c)(3) | 2022 | $104.4 million | $31.7 million | 2025-06 |
| Ctia-The Wireless Association | 501(c)(6) | 1984 | $104.3 million | $311.1 million | 2024-12 | |
| American Beverage Association | 501(c)(6) | 1939 | $103.8 million | $130.9 million | 2024-12 | |
| Judicial Watch Inc | Public and societal benefit | 501(c)(3) | 1995 | $102.3 million | $592.9 million | 2025-12 |
| Edison Electric Institute | Community improvement and capacity building | 501(c)(6) | 1942 | $101.8 million | $199.5 million | 2024-12 |
| Building America S Future | Civil rights, social action and advocacy | 501(c)(4) | 2022 | $100.2 million | $9.2 million | 2024-12 |
| Marys Center for Maternal and Child Care Inc | 501(c)(3) | 1989 | $98.9 million | $42.8 million | 2025-12 | |
| House Majority Forward | Community improvement and capacity building | 501(c)(4) | 2020 | $97.7 million | $16.2 million | 2024-12 |
| Conference of State Bank Supervisors Inc | Public and societal benefit | 501(c)(3) | 2012 | $97.6 million | $242.5 million | 2024-12 |
| 50can Inc | Education | 501(c)(3) | 2011 | $97.3 million | $36.8 million | 2024-12 |
| Halo Trust USA Inc | International, foreign affairs and national security | 501(c)(3) | 1999 | $97.2 million | $33.1 million | 2025-03 |
| United States Association for Unhcr | International, foreign affairs and national security | 501(c)(3) | 1991 | $95.7 million | $45.1 million | 2025-12 |
| Soundexchange Inc | Community improvement and capacity building | 501(c)(6) | 2004 | $95.2 million | $778.1 million | 2024-12 |
| National Retail Federation Inc | 501(c)(6) | 1938 | $93.4 million | $78.4 million | 2026-02 | |
| Consortium for Elections and Political Process Strengthening | Public and societal benefit | 501(c)(3) | 1997 | $93.1 million | $2.3 million | 2025-09 |
| Urban Land Institute | Environment | 501(c)(3) | 1941 | $92.3 million | $93.4 million | 2025-06 |
| Society for Science and the Public | Science and technology | 501(c)(3) | 1922 | $91.1 million | $165.3 million | 2024-12 |
| Globalgiving Foundation Inc | International, foreign affairs and national security | 501(c)(3) | 2003 | $91.1 million | $80.3 million | 2024-12 |
| National Association of Home Builders of the United States | 501(c)(6) | 1997 | $90 million | $155.6 million | 2024-12 | |
| Share Our Strength | 501(c)(3) | 1985 | $89.9 million | $74.5 million | 2025-06 | |
| International Association of Fire Fighters | 501(c)(5) | 1940 | $89.9 million | $69.8 million | 2025-09 | |
| National Council for Behavioral Health | Mental health and crisis intervention | 501(c)(3) | 1982 | $89.2 million | $86.4 million | 2025-09 |
| United Mine Workers of America 1992 Benefit Fund | 501(c)(9) | 1995 | $87.8 million | $45 million | 2024-12 | |
| Trinity College | Education | 501(c)(3) | 1976 | $85.8 million | $180.5 million | 2025-06 |
| Investment Company Institute | 501(c)(6) | 1945 | $85.6 million | $150.4 million | 2025-09 | |
| Bricklayers and Allied Craftworkers International Health Fund | 501(c)(9) | 1989 | $85.2 million | $61.3 million | 2025-12 | |
| Paralyzed Veterans of America | Medical research | 501(c)(3) | 1955 | $83.2 million | $143.5 million | 2025-06 |
| Center for Disaster Philanthropy Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2012 | $81.8 million | $110.7 million | 2025-12 |
| Davis Memorial Goodwill Industries | Employment | 501(c)(3) | 1942 | $81.3 million | $99.6 million | 2024-12 |
| D C Preparatory Academy | Education | 501(c)(3) | 2003 | $80.7 million | $155 million | 2025-06 |
| American Federation of Government Employees | Employment | 501(c)(5) | 1940 | $80.2 million | $127.7 million | 2024-12 |
| Climate Power | Environment | 501(c)(4) | 2024 | $79.4 million | $1.4 million | 2024-12 |
| American Federation of Labor & Congress of Industrial Orgs | 501(c)(5) | 1956 | $79.2 million | $30.7 million | 2025-06 | |
| American Center for International Labor Solidarity | 501(c)(5) | 1997 | $79.1 million | $41.7 million | 2024-12 | |
| Kind Inc | Crime and legal-related | 501(c)(3) | 2008 | $79 million | $59.3 million | 2024-12 |
| Americas Health Insurance Plans Inc | Mutual and membership benefit | 501(c)(6) | 1947 | $78.1 million | $94.8 million | 2024-12 |
| Green Business Certification Inc | Community improvement and capacity building | 501(c)(6) | 2009 | $77.5 million | $148.9 million | 2024-12 |
| Mag America Inc | Human services | 501(c)(3) | 2001 | $77.4 million | $18.5 million | 2024-12 |
| American Council of Life Insurers Inc | 501(c)(6) | 1977 | $77.3 million | $78.4 million | 2024-12 | |
| Paintcare Inc | Environment | 501(c)(3) | 2011 | $77.1 million | $90.7 million | 2025-12 |
| First Book | Education | 501(c)(3) | 1992 | $77.1 million | $33.5 million | 2025-12 |
| United Nations Foundation Inc | International, foreign affairs and national security | 501(c)(3) | 1998 | $77 million | $285.1 million | 2024-12 |
| American Enterprise Institute for Public Policy Research | Social science | 501(c)(3) | 1944 | $75.4 million | $386.6 million | 2025-06 |
| League of Conservation Voters Education Fund | Environment | 501(c)(3) | 1985 | $75.2 million | $37.2 million | 2024-12 |
| Ab Foundation | Public and societal benefit | 501(c)(4) | 2014 | $74.6 million | $3 million | 2024-12 |
| Hillel the Foundation for Jewish Campus Life | Religion-related | 501(c)(3) | 1993 | $72.8 million | $76 million | 2025-06 |
| Electronic Payments Coalition Inc | Mutual and membership benefit | 501(c)(6) | 2016 | $72.8 million | $29 million | 2024-12 |
| International Republican Institute | Education | 501(c)(3) | 1984 | $72.2 million | $44.1 million | 2025-09 |
| Campaign for Tobacco-Free Kids | Mental health and crisis intervention | 501(c)(3) | 1996 | $71.9 million | $89 million | 2025-03 |
| National Association of Broadcasters | 501(c)(6) | 1931 | $71.5 million | $207.9 million | 2024-12 | |
| Cnfa | International, foreign affairs and national security | 501(c)(3) | 1986 | $70.2 million | $18.3 million | 2024-12 |
| Association of American Railroads | 501(c)(6) | 1992 | $70.2 million | $52.3 million | 2024-12 | |
| Atlantic Council of the U S Inc | International, foreign affairs and national security | 501(c)(3) | 1961 | $69.9 million | $135.9 million | 2024-12 |
| Freedom House Inc | International, foreign affairs and national security | 501(c)(3) | 1943 | $69.4 million | $34.2 million | 2025-06 |
| Georgetown Day School Inc | Education | 501(c)(3) | 1950 | $69.2 million | $333.1 million | 2025-06 |
| Cato Institute | Public and societal benefit | 501(c)(3) | 1975 | $69.2 million | $213.7 million | 2026-03 |
| Radio Free Asia | Arts, culture and humanities | 501(c)(3) | 1996 | $68.9 million | $49.6 million | 2025-09 |
| Ncta-The Internet & Television Association | 501(c)(6) | 1953 | $67.5 million | $104.4 million | 2024-12 | |
| American Clean Power Association | Community improvement and capacity building | 501(c)(6) | 2022 | $67.5 million | $78 million | 2024-12 |
| Hudson Institute Inc | 501(c)(3) | 1963 | $67 million | $130.4 million | 2025-12 | |
| Digital Promise Global | International, foreign affairs and national security | 501(c)(3) | 2014 | $66.8 million | $141.2 million | 2024-12 |
| Zero To Three - National Center for Infants Toddlers and Families | Human services | 501(c)(3) | 1978 | $66.4 million | $102.2 million | 2025-09 |
| Relief International Inc | International, foreign affairs and national security | 501(c)(3) | 1995 | $66.1 million | $20.8 million | 2024-12 |
| American Postal Workers Union | 501(c)(5) | 1973 | $66 million | $180.9 million | 2025-12 | |
| Delta Sigma Theta Sorority Inc | 501(c)(7) | 1952 | $65.8 million | $71.4 million | 2024-12 | |
| Democracy Forward Foundation | Crime and legal-related | 501(c)(3) | 2017 | $65.7 million | $60.9 million | 2025-06 |
| Voter Registration Project | 501(c)(3) | 2010 | $65.6 million | $9.2 million | 2024-12 | |
| Uaw Retirees of Daimler Trucks North America Welfare Benefits Trust | Mutual and membership benefit | 501(c)(9) | 2016 | $65.6 million | $799.5 million | 2024-12 |
| Business Roundtable Inc | Employment | 501(c)(6) | 2017 | $65.6 million | $50.2 million | 2024-12 |
| Certified Financial Planner Board of Standards Inc | Community improvement and capacity building | 501(c)(6) | 2024 | $65.2 million | $53.5 million | 2024-12 |
| Escuela Agricola Panamericana | International, foreign affairs and national security | 501(c)(3) | 1943 | $65.2 million | $188.5 million | 2024-12 |
| National Association of Childrens Hospital and Related Institutions | 501(c)(3) | 1974 | $65 million | $183.5 million | 2025-12 | |
| International Association Pension Plan | 501(c)(5) | 1942 | $64.5 million | $132.4 million | 2025-06 | |
| Municipal Securities Rulemaking Board | 501(c)(6) | 1989 | $64.1 million | $97.5 million | 2025-09 | |
| Sams Foundation | Health care | 501(c)(3) | 2007 | $64 million | $32.6 million | 2025-12 |
| American College of Obstetricians and Gynecologists | Health care | 501(c)(6) | 2009 | $63.5 million | $93.2 million | 2024-12 |
| National Association of Manufacturers of the USA | 501(c)(6) | 1938 | $63.5 million | $71.2 million | 2025-12 | |
| Whitman-Walker Clinic Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 1978 | $62.4 million | $122 million | 2024-12 |
| The Malala Fund | Education | 501(c)(3) | 2016 | $62.3 million | $95 million | 2026-03 |
| National Association of County and City Health Officials | 501(c)(3) | 1986 | $62.3 million | $19.2 million | 2025-06 | |
| Seiu Health and Welfare Fund | 501(c)(9) | 1990 | $62 million | $46.5 million | 2024-12 | |
| Optical Society of America Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 1956 | $61.8 million | $148.3 million | 2024-12 |
| Mortgage Bankers Association of America | 501(c)(6) | 1942 | $61.8 million | $178.4 million | 2025-09 | |
| Namati Inc | Crime and legal-related | 501(c)(3) | 2013 | $61.5 million | $91.3 million | 2025-12 |
| Merit America | Human services | 501(c)(3) | 2019 | $61.4 million | $43.1 million | 2024-12 |
| American Israel Education Foundation Inc | International, foreign affairs and national security | 501(c)(3) | 1989 | $61.1 million | $220.5 million | 2025-09 |
| Innovations for Poverty Action | Social science | 501(c)(3) | 2003 | $60.2 million | $42.8 million | 2025-12 |
| Nuclear Energy Institute Inc | 501(c)(6) | 1985 | $59.4 million | $99.2 million | 2024-12 | |
| American Independent Foundation | 501(c)(3) | 2007 | $58.6 million | $13.5 million | 2024-12 | |
| Plastics Industry Association Inc | 501(c)(6) | 1941 | $58.6 million | $39.6 million | 2024-12 | |
| American Psychiatric Association | Community improvement and capacity building | 501(c)(6) | 2000 | $58.2 million | $182.1 million | 2024-12 |
| The Voter Participation Center | Civil rights, social action and advocacy | 501(c)(3) | 2005 | $58 million | $19.5 million | 2024-12 |
| American Battlefield Trust | Arts, culture and humanities | 501(c)(3) | 1988 | $57.9 million | $248.7 million | 2025-03 |
| Carnegie Endowment for International Peace | International, foreign affairs and national security | 501(c)(3) | 1953 | $57.6 million | $602.5 million | 2025-06 |
| Community of Hope Inc | Community improvement and capacity building | 501(c)(3) | 1980 | $57.6 million | $80.8 million | 2024-12 |
| American Action Network Inc | Human services | 501(c)(4) | 2010 | $57 million | $17.4 million | 2025-06 |
| American Geophysical Union | Science and technology | 501(c)(3) | 1972 | $56.2 million | $135.7 million | 2024-12 |
| International Union of Bricklayers and Allied Craftworkers | 501(c)(5) | 1940 | $55.5 million | $250.4 million | 2025-12 | |
| Protect Democracy Project | Civil rights, social action and advocacy | 501(c)(3) | 2017 | $55.5 million | $94.8 million | 2024-12 |
| Washington International School | Education | 501(c)(3) | 1966 | $55.1 million | $207.8 million | 2025-06 |
| Msi Us | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $55.1 million | $3.6 million | 2025-12 |
| Washington DC Convention and Tourism Corporation | Community improvement and capacity building | 501(c)(6) | 1977 | $55 million | $24.9 million | 2025-09 |
| African Parks Foundation of America | Recreation and sports | 501(c)(3) | 2004 | $54.9 million | $80.5 million | 2024-12 |
| Advanced Medical Technology Association | 501(c)(6) | 1975 | $54.8 million | $41.5 million | 2024-12 | |
| Guaranty Association Benefits Company | Community improvement and capacity building | 501(c)(6) | 2011 | $54.7 million | $1.15 billion | 2025-12 |
| Pharmaceutical Care Management Association | 501(c)(6) | $54.2 million | $26.6 million | 2024-12 | ||
| International Foundation for Electoral Systems | International, foreign affairs and national security | 501(c)(3) | 1988 | $54.1 million | $18.3 million | 2025-09 |
| Washington Housing Conservancy Inc | Housing and shelter | 501(c)(3) | 2019 | $53.6 million | $468 million | 2024-12 |
| Unidosus | 501(c)(3) | 1968 | $53.5 million | $125.8 million | 2025-09 | |
| American Rivers Inc | Environment | 501(c)(3) | 1984 | $53.4 million | $40.1 million | 2025-06 |
| Center for Community Change | Community improvement and capacity building | 501(c)(3) | 1968 | $53.3 million | $47.8 million | 2025-09 |
| Truth Initiative Foundation | Mental health and crisis intervention | 501(c)(3) | 1999 | $53 million | $676.3 million | 2025-06 |
| Catholic Charities of the Archdiocese of Washington Inc | Human services | 501(c)(3) | 1946 | $52.7 million | $79.3 million | 2025-06 |
| Center On Budget and Policy Priorities | Public and societal benefit | 501(c)(3) | 1982 | $52.5 million | $172 million | 2024-12 |
| Open Technology Fund | Arts, culture and humanities | 501(c)(3) | 2020 | $52.3 million | $26.3 million | 2025-09 |
| Kyiv School of Economics | Education | 501(c)(3) | 2001 | $51.7 million | $54.6 million | 2024-12 |
| American Fuel and Petrochemical Manufacturers | 501(c)(6) | 1963 | $51.7 million | $57.1 million | 2024-12 | |
| National Parks Conservation Association | Environment | 501(c)(3) | 1959 | $51.6 million | $73.9 million | 2025-06 |
| Unrwa USA National Committee Inc | International, foreign affairs and national security | 501(c)(3) | 2006 | $51.5 million | $11.2 million | 2024-12 |
| American Society for Microbiology | Science and technology | 501(c)(3) | 1975 | $51.3 million | $147.8 million | 2024-12 |
| Engenderhealth Inc | International, foreign affairs and national security | 501(c)(3) | 1952 | $51.2 million | $33.6 million | 2025-06 |
| American Health Care Association and Subsidiary | 501(c)(6) | 1957 | $51.1 million | $46.2 million | 2025-12 | |
| Universities Space Research Association | Science and technology | 501(c)(3) | 1969 | $50.5 million | $39.3 million | 2025-09 |
| Home Builders Institute | Employment | 501(c)(3) | 1984 | $50.4 million | $24 million | 2024-12 |
| National Marine Manufacturers Association Inc | 501(c)(6) | 1982 | $50.4 million | $59.3 million | 2025-09 | |
| U S Green Building Council Inc | Environment | 501(c)(3) | 2003 | $50.3 million | $40 million | 2024-12 |
| Center for Strategic and International Studies Inc | International, foreign affairs and national security | 501(c)(3) | 1987 | $50.3 million | $239.9 million | 2025-09 |
| District of Columbia International School | Education | 501(c)(3) | 2014 | $50.2 million | $99.5 million | 2025-06 |
| Human Rights Campaign Inc | Civil rights, social action and advocacy | 501(c)(4) | 1991 | $50.1 million | $34.6 million | 2025-03 |
| The Center for Employment Security Education and Research Inc | Social science | 501(c)(3) | 1995 | $49.4 million | $10.7 million | 2025-09 |
| Young Mens Christian Association | Human services | 501(c)(3) | 1934 | $49.2 million | $53.8 million | 2024-12 |
| Results for Development Institute Inc | International, foreign affairs and national security | 501(c)(3) | 2007 | $49.1 million | $20.7 million | 2024-12 |
| National Electrical Contractors Association Inc | 501(c)(6) | 1952 | $49.1 million | $57.4 million | 2024-12 | |
| Foundation for Food and Agriculture Research | Food, agriculture and nutrition | 501(c)(3) | 2015 | $49.1 million | $295.2 million | 2024-12 |
| Ocean Conservancy Inc | Environment | 501(c)(3) | 1972 | $48.8 million | $97.9 million | 2025-06 |
| Defenders of Wildlife | Animal-related | 501(c)(3) | 1948 | $48.6 million | $65.5 million | 2025-09 |
| Afl-Cio Health & Welfare Trust | Mutual and membership benefit | 501(c)(9) | 2010 | $48.5 million | $29.5 million | 2024-12 |
| American Farmland Trust | Food, agriculture and nutrition | 501(c)(3) | 1985 | $48.4 million | $95.4 million | 2025-09 |
| Tobacco Free Kids Action Fund | 501(c)(4) | 1996 | $48.2 million | $75.7 million | 2025-03 | |
| National Mining Association | 501(c)(6) | 1997 | $48.1 million | $68.5 million | 2024-12 | |
| Great Barrier Reef Foundation USA Inc | Environment | 501(c)(3) | 2019 | $47.8 million | $28.7 million | 2025-06 |
| Air Transport Association of America Inc | 501(c)(6) | 1998 | $47.7 million | $30.7 million | 2024-12 | |
| Laborers International Union of North America | 501(c)(5) | 1940 | $47.6 million | $30 million | 2024-12 | |
| American Embassy School Association | Education | 501(c)(3) | 1963 | $47.6 million | $118.4 million | 2025-06 |
| National 4-H Council | Youth development | 501(c)(3) | 1976 | $47.5 million | $140.7 million | 2025-06 |
| America250 Org Inc | Public and societal benefit | 501(c)(3) | 2020 | $46.4 million | $23.4 million | 2025-09 |
| Pew Research Center | Social science | 501(c)(3) | 2004 | $46.3 million | $49.8 million | 2025-06 |
| Center City Public Charter Schools | Education | 501(c)(3) | 2008 | $46.2 million | $46.3 million | 2025-06 |
| National Cable Satellite Corporation | Arts, culture and humanities | 501(c)(3) | 1983 | $46 million | $257.9 million | 2025-03 |
| Amideast | International, foreign affairs and national security | 501(c)(3) | 1952 | $45.9 million | $39.1 million | 2025-09 |
| Earthscope Consortium | Public safety, disaster preparedness and relief | 501(c)(3) | 1984 | $45.4 million | $8.1 million | 2025-06 |
| United Mine Workers of America Combined Benefit Fund | 501(c)(9) | 1995 | $45.4 million | $80.2 million | 2025-09 | |
| North Fund | Public and societal benefit | 501(c)(4) | 2022 | $45 million | $50.5 million | 2024-12 |
| National Council of Architectural Registration Boards | 501(c)(6) | 1963 | $44.6 million | $49.8 million | 2025-06 | |
| The District of Columbia Bar Foundation | Crime and legal-related | 501(c)(3) | 1978 | $44.5 million | $36.5 million | 2025-09 |
| Euphemia L Haynes Public Charter School Inc | Education | 501(c)(3) | 2004 | $44.3 million | $52.6 million | 2025-06 |
| Carlos Rosario International Public Charter School | Education | 501(c)(3) | 1999 | $44 million | $57.7 million | 2025-06 |
| District of Columbia College Access Program | Education | 501(c)(3) | 1999 | $43.9 million | $87.3 million | 2025-06 |
| International Fresh Produce Association | Food, agriculture and nutrition | 501(c)(6) | 2024 | $43.9 million | $58.7 million | 2025-12 |
| Meridian International Center | International, foreign affairs and national security | 501(c)(3) | 1962 | $43.7 million | $35.1 million | 2025-09 |
| Bess Rural Energy Cooperative Lca | Environment | 501(c)(12) | 2025 | $43.5 million | $351.6 million | 2025-12 |
| Counterpart International Inc | International, foreign affairs and national security | 501(c)(3) | 1965 | $43.5 million | $19.5 million | 2025-09 |
| Some Inc | 501(c)(3) | 1971 | $43.4 million | $165.7 million | 2024-12 | |
| National Business Aviation Association Inc | 501(c)(6) | 1989 | $43 million | $57.1 million | 2025-06 | |
| White House Historical Association | Arts, culture and humanities | 501(c)(3) | 1963 | $42.8 million | $163.8 million | 2025-09 |
| United Planning Organization | Human services | 501(c)(3) | 1964 | $42.5 million | $10.6 million | 2025-09 |
| Finca International Inc | International, foreign affairs and national security | 501(c)(3) | 1986 | $42.5 million | $252.1 million | 2024-12 |
| American Gas Association | 501(c)(6) | 1938 | $42.3 million | $56.9 million | 2024-12 | |
| Us Chamber of Commerce Foundation | Education | 501(c)(3) | 2013 | $42.3 million | $62.5 million | 2024-12 |
| Maret School Inc | Education | 501(c)(3) | 1938 | $41.2 million | $126.5 million | 2025-06 |
| The Recycling Partnership Inc | Environment | 501(c)(3) | 2012 | $41.2 million | $46.1 million | 2024-12 |
| Search for Common Ground | International, foreign affairs and national security | 501(c)(3) | 1982 | $40.9 million | $18.1 million | 2024-12 |
| Center for Popular Democracy | Public and societal benefit | 501(c)(3) | 2012 | $40.9 million | $42.4 million | 2024-12 |
| American Pharmacists Association | 501(c)(6) | 1989 | $40.8 million | $162.6 million | 2024-12 | |
| Entertainment Software Association | 501(c)(6) | 1995 | $40.7 million | $59.3 million | 2025-03 | |
| Bnai Brith Youth Organization Inc | Youth development | 501(c)(3) | 1946 | $40.4 million | $23.5 million | 2025-06 |
| National Community Reinvestment Coalition Inc | Community improvement and capacity building | 501(c)(3) | 1992 | $40 million | $121.5 million | 2024-12 |
| Cobell Board of Trustees | Education | 501(c)(3) | 2015 | $39.8 million | $221.3 million | 2025-12 |
| Transport Workers Union of America | 501(c)(5) | 1944 | $39.1 million | $86.8 million | 2025-08 | |
| Childrens National Rehabilitation and Specialized Care | Health care | 501(c)(3) | 1935 | $39.1 million | $63.1 million | 2025-06 |
| Washington Health Institute | Health care | 501(c)(3) | 2019 | $39.1 million | $12.6 million | 2025-06 |
| American Dental Education Association | Education | 501(c)(3) | 1999 | $38.8 million | $36.3 million | 2025-06 |
| International Union of Operating Engineers National Training Fund | Employment | 501(c)(3) | 1995 | $38.7 million | $73.7 million | 2025-06 |
| Ingleside Presbyterian Retirement Community Inc | Human services | 501(c)(3) | 1940 | $38.6 million | $257 million | 2024-12 |
| Greenpeace Inc | 501(c)(4) | 1988 | $38.6 million | $23.3 million | 2024-12 | |
| German Marshall Fund of the Us | International, foreign affairs and national security | 501(c)(3) | 1972 | $38.4 million | $197.9 million | 2024-12 |
| Delta Sigma Theta Sorority Inc | 501(c)(7) | 1952 | $38.3 million | $59.6 million | 2024-12 | |
| Wilderness Society | Environment | 501(c)(3) | 1942 | $38.3 million | $127.1 million | 2025-09 |
| American Journalism Project Inc | Arts, culture and humanities | 501(c)(3) | 2018 | $38.1 million | $66.4 million | 2024-12 |
| National Association of Social Workers Inc | 501(c)(6) | 1978 | $38 million | $104.7 million | 2025-06 | |
| American Farm Bureau Federation | 501(c)(5) | 1950 | $37.9 million | $129.6 million | 2025-11 | |
| Bipartisan Policy Center Inc | Public and societal benefit | 501(c)(3) | 2002 | $37.8 million | $62.8 million | 2024-12 |
| Rewiring America Inc | Environment | 501(c)(3) | 2024 | $37.6 million | $17.4 million | 2024-12 |
| Solar Energy Industries Association Inc | 501(c)(6) | 1977 | $37.6 million | $38.8 million | 2024-12 | |
| Center for Voter Information | Civil rights, social action and advocacy | 501(c)(4) | 2006 | $37.4 million | $7.8 million | 2024-12 |
| Center for American Progress | Civil rights, social action and advocacy | 501(c)(3) | 2003 | $37.4 million | $84.5 million | 2024-12 |
| African Wildlife Foundation | Animal-related | 501(c)(3) | 1962 | $37.3 million | $54.8 million | 2025-06 |
| Earthshare | Environment | 501(c)(3) | 1988 | $37.3 million | $38.9 million | 2025-06 |
| New America Foundation | 501(c)(3) | 1998 | $37.2 million | $81.4 million | 2024-12 | |
| Cruise Lines International Association Inc | 501(c)(6) | 1992 | $37.2 million | $34.7 million | 2024-12 | |
| Record Industry Association of America Inc | 501(c)(6) | 1953 | $37.1 million | $28.2 million | 2025-03 | |
| Rural Community Assistance Partnership Incorporated | 501(c)(3) | 1974 | $36.8 million | $7.5 million | 2025-09 | |
| American Society of Nephrology Inc | 501(c)(3) | 1968 | $36.8 million | $116.9 million | 2025-12 | |
| America First Works Inc | Civil rights, social action and advocacy | 501(c)(4) | 2022 | $36.7 million | $5.2 million | 2024-12 |
| Society for Neuroscience | Medical research | 501(c)(3) | 1970 | $36.7 million | $134.6 million | 2025-06 |
| Laborers National Health and Welfare Fund | 501(c)(9) | 1989 | $36.6 million | $82.1 million | 2025-12 | |
| American Humane Association | Animal-related | 501(c)(3) | 1942 | $36.6 million | $46.2 million | 2025-06 |
| National Childrens Alliance Inc | 501(c)(3) | 1992 | $36.5 million | $17.2 million | 2025-10 | |
| Us Travel Association | 501(c)(6) | 1964 | $36.5 million | $45.9 million | 2024-12 | |
| Capital City Public Charter School Inc | Education | 501(c)(3) | 2000 | $36.4 million | $49.6 million | 2025-06 |
| National Association of Real Estate Investment Trust Inc | Community improvement and capacity building | 501(c)(6) | 2010 | $36.4 million | $54.9 million | 2025-12 |
| Chief Executives Organization Inc | Community improvement and capacity building | 501(c)(6) | 2007 | $36.3 million | $44.5 million | 2025-10 |
| Community Connections | Mental health and crisis intervention | 501(c)(3) | 1984 | $36.3 million | $27.3 million | 2025-09 |
| Evidence Action Inc | International, foreign affairs and national security | 501(c)(3) | 2013 | $36.2 million | $201 million | 2024-12 |
| The Albert B Sabin Vaccine Institute Inc | 501(c)(3) | 1994 | $35.9 million | $13.7 million | 2024-12 | |
| American Independent Media | Arts, culture and humanities | 501(c)(4) | 2026 | $35.7 million | $579,053 | 2024-12 |
| American Forests | Environment | 501(c)(3) | 1943 | $35.6 million | $17 million | 2025-09 |
| Federation of American Scientists | International, foreign affairs and national security | 501(c)(3) | 1972 | $35.6 million | $36.1 million | 2025-06 |
| Democracy Matters Foundation | Civil rights, social action and advocacy | 501(c)(3) | 2015 | $35.6 million | $2.2 million | 2024-12 |
| Clean Future Forum Inc | Environment | 501(c)(3) | 2020 | $35.4 million | $20 million | 2025-06 |
| Med-Project USA | Mental health and crisis intervention | 501(c)(3) | 2020 | $35.4 million | $67.8 million | 2024-12 |
| National Partnership for Women and Families Inc | 501(c)(3) | 1973 | $35.3 million | $56.4 million | 2025-03 | |
| Bank Policy Institute | 501(c)(6) | 1994 | $35.3 million | $48.8 million | 2024-12 | |
| Humane World for Animals International | Animal-related | 501(c)(3) | 1993 | $35.1 million | $5.7 million | 2024-12 |
| Former Player Benefits Trust | Mutual and membership benefit | 501(c)(9) | 2015 | $34.9 million | $41.1 million | 2025-02 |
| Us Grains & Bioproducts Council | 501(c)(6) | 1961 | $34.9 million | $30.5 million | 2025-09 | |
| Oceana Inc | Environment | 501(c)(3) | 2000 | $34.7 million | $62.2 million | 2024-12 |
| American Association for Justice | 501(c)(6) | 1977 | $34.6 million | $38.2 million | 2025-07 | |
| Conservative Partnership Institute | Education | 501(c)(3) | 2017 | $34.5 million | $72.3 million | 2024-12 |
| Mundo Verde Bilingual Public Charter School | Education | 501(c)(3) | 2009 | $34.4 million | $58.1 million | 2025-06 |
| LTC Reinsurance PCC | Community improvement and capacity building | 501(c)(6) | 2017 | $34.3 million | $1.60 billion | 2025-12 |
| National Air Traffic Controllers | 501(c)(5) | 1990 | $34.3 million | $20.3 million | 2025-12 | |
| Alliance for Automotive Innovation | Community improvement and capacity building | 501(c)(6) | 2000 | $34.3 million | $26.4 million | 2025-12 |
| American Council On Education | Education | 501(c)(3) | 1936 | $34.3 million | $93.5 million | 2025-09 |
| Institute of International Finance Inc | 501(c)(6) | 1983 | $34.2 million | $61.1 million | 2024-12 | |
| National Treasury Employees Union | 501(c)(5) | 1943 | $34.2 million | $71.4 million | 2025-09 | |
| Center for International Private Enterprise Inc | International, foreign affairs and national security | 501(c)(3) | 1985 | $33.7 million | $29.4 million | 2025-09 |
| American Public Transit Association | 501(c)(6) | 1976 | $33.5 million | $45.5 million | 2025-06 | |
| The Fairness Project | Housing and shelter | 501(c)(4) | 2016 | $33.3 million | $4.3 million | 2024-12 |
| States United Democracy Center Inc | Civil rights, social action and advocacy | 501(c)(3) | 2021 | $33.3 million | $25.2 million | 2024-12 |
| Education Trust Inc | Education | 501(c)(3) | 1997 | $33.2 million | $77.1 million | 2025-06 |
| Stoddard Baptist Global Care | Housing and shelter | 501(c)(3) | 2012 | $33.1 million | $25.5 million | 2024-12 |
| American University in Bulgaria | International, foreign affairs and national security | 501(c)(3) | 1992 | $33.1 million | $76.6 million | 2025-06 |
| St Coletta of Greater Washington Inc | 501(c)(3) | 2000 | $33 million | $37.4 million | 2025-06 | |
| America Votes Education Fund | Civil rights, social action and advocacy | 501(c)(3) | 2023 | $33 million | $1.9 million | 2025-06 |
| Foundation for the Defense of Democracies Inc | International, foreign affairs and national security | 501(c)(3) | 2002 | $32.5 million | $41.3 million | 2024-12 |
| National Confectioners Association | 501(c)(6) | 1935 | $32.5 million | $50.2 million | 2025-03 | |
| Jack & Jill of America Inc | 501(c)(4) | 1964 | $32.5 million | $14.4 million | 2025-05 | |
| NPR Foundation | 501(c)(3) | 1992 | $32.4 million | $426 million | 2025-09 | |
| Corporation of the Washington Latin School | Education | 501(c)(3) | 2006 | $32.4 million | $76.6 million | 2025-06 |
| Improving Economies for Stronger Communities | 501(c)(3) | 1964 | $32.3 million | $32.4 million | 2024-12 | |
| America First Legal Foundation | Crime and legal-related | 501(c)(3) | 2021 | $32 million | $30.2 million | 2024-12 |
| International Spy Museum | Arts, culture and humanities | 501(c)(3) | 2014 | $31.8 million | $145.6 million | 2024-12 |
| Third Way | Civil rights, social action and advocacy | 501(c)(4) | 2005 | $31.7 million | $66 million | 2024-12 |
| Urac | Community improvement and capacity building | 501(c)(3) | 1992 | $31.7 million | $111.1 million | 2025-12 |
| International Bar Association | Community improvement and capacity building | 501(c)(6) | 2008 | $31.6 million | $49.4 million | 2024-12 |
| Capital for Good USA | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $31.5 million | $55.9 million | 2025-06 |
| Housing Counseling Services Inc | Housing and shelter | 501(c)(3) | 1973 | $31.5 million | $5.7 million | 2025-06 |
| Generation - You Employed Inc | Youth development | 501(c)(3) | 2014 | $31.4 million | $39.2 million | 2024-12 |
| National Association for Equal Opportunity in Higher Education | 501(c)(3) | 1975 | $31.4 million | $30.1 million | 2023-06 | |
| Teaching Lab | Education | 501(c)(3) | 2017 | $31.2 million | $19.2 million | 2025-06 |
| Two Rivers Public Charter School Inc | Education | 501(c)(3) | 2003 | $31.2 million | $55.5 million | 2025-06 |
| DC Central Kitchen Inc | 501(c)(3) | 1988 | $31.1 million | $43 million | 2025-06 | |
| Council for Advancement and Support of Education | 501(c)(3) | 1978 | $31 million | $33 million | 2025-06 | |
| Electronic Transactions Association | 501(c)(6) | 1991 | $30.8 million | $32.9 million | 2024-12 | |
| Field School Inc | 501(c)(3) | 1973 | $30.7 million | $109 million | 2025-06 | |
| Atlantic 10 Conference | Recreation and sports | 501(c)(3) | 1989 | $30.6 million | $67.2 million | 2025-06 |
| Verra | Environment | 501(c)(3) | 2015 | $30.6 million | $26.8 million | 2025-12 |
| Jane Goodall Institute for Wildlife Research Education & Conservation | Animal-related | 501(c)(3) | 1978 | $30.6 million | $22.6 million | 2024-12 |
| Opportunity at Work Inc | Employment | 501(c)(3) | 2016 | $30.4 million | $35.6 million | 2024-12 |
| Managed Funds Association | 501(c)(6) | 1994 | $30.2 million | $35.9 million | 2025-09 | |
| International City County Management Association | International, foreign affairs and national security | 501(c)(3) | 1933 | $30.2 million | $34.8 million | 2025-06 |
| Washington Gas Light Company Management Veba Trust | 501(c)(9) | 1995 | $30.1 million | $234.5 million | 2024-12 | |
| Federalist Society for Law & Public Policy Studies | 501(c)(3) | 1983 | $30.1 million | $47.4 million | 2025-09 | |
| Cotton Council International | 501(c)(6) | 1958 | $29.9 million | $8.4 million | 2024-12 | |
| Ncba Inc | Human services | 501(c)(3) | 1983 | $29.8 million | $4.9 million | 2024-12 |
| National Multifamily Housing Council | 501(c)(6) | 1978 | $29.6 million | $27 million | 2025-06 | |
| American College of Cardiology | Health care | 501(c)(6) | 2001 | $29.5 million | $28.4 million | 2024-12 |
| Climate and Clean Energy Equity Fund | Environment | 501(c)(3) | 2022 | $29.5 million | $52.6 million | 2024-12 |
| The One Campaign | 501(c)(3) | 2002 | $29.5 million | $48.8 million | 2024-12 | |
| Council of Insurance Agents & Brokers | 501(c)(6) | 1942 | $29.4 million | $54.9 million | 2024-12 | |
| Coalition To Strengthen Americas Healthcare | Health care | 501(c)(4) | 2001 | $29.3 million | $11.9 million | 2025-05 |
| Council of Chief State School Officers | Education | 501(c)(3) | 1949 | $29.3 million | $45.1 million | 2025-06 |
| Paul Public Charter School | Education | 501(c)(3) | 2000 | $29.3 million | $39.7 million | 2025-06 |
| B S A Business Software Alliance | 501(c)(6) | 1989 | $29.2 million | $25.6 million | 2025-09 | |
| Partnership Project Inc | Environment | 501(c)(3) | 2000 | $29.2 million | $29.8 million | 2024-12 |
| Bread for the City Inc | Food, agriculture and nutrition | 501(c)(3) | 1979 | $29.1 million | $64.2 million | 2025-06 |
| Associated Builders & Contractors Inc | 501(c)(6) | 1964 | $29.1 million | $28.5 million | 2024-12 | |
| American Association of Community Colleges | Education | 501(c)(3) | 1951 | $29.1 million | $27.3 million | 2025-12 |
| Clasp | Environment | 501(c)(3) | 2006 | $28.9 million | $23.6 million | 2024-12 |
| National Association of Counties | 501(c)(4) | 1950 | $28.9 million | $121.1 million | 2024-12 | |
| Autism Speaks Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2011 | $28.8 million | $29.7 million | 2025-03 |
| Human Rights Campaign Foundation | Civil rights, social action and advocacy | 501(c)(3) | 1987 | $28.6 million | $38.5 million | 2025-03 |
| American Society of Association Executives | 501(c)(6) | 1942 | $28.6 million | $57.7 million | 2025-08 | |
| Way To Win Action Fund Incorporated | Civil rights, social action and advocacy | 501(c)(4) | 2019 | $28.5 million | $1.5 million | 2024-12 |
| Ironworker Management Progressive Action Cooperative Trust | 501(c)(5) | 2002 | $28.5 million | $29.1 million | 2025-12 | |
| Civic Nation | Education | 501(c)(3) | 2015 | $28.4 million | $17.2 million | 2024-12 |
| Healthcare Distribution Alliance Hda | 501(c)(6) | 1944 | $28.4 million | $38.7 million | 2024-12 | |
| Lab School of Washington | 501(c)(3) | 1982 | $28.4 million | $82.3 million | 2025-06 | |
| Center for the Study of Services | Public and societal benefit | 501(c)(3) | 1974 | $28.3 million | $19.3 million | 2024-12 |
| Army Distaff Foundation Inc | Human services | 501(c)(3) | 1963 | $28.2 million | $44.5 million | 2025-12 |
| Washington Drama Society Inc | Arts, culture and humanities | 501(c)(3) | 1960 | $28.2 million | $123.2 million | 2025-06 |
| Ehealth Africa | Health care | 501(c)(3) | 2017 | $28.1 million | $27.7 million | 2024-12 |
| Center for Global Development | Human services | 501(c)(3) | 2002 | $27.9 million | $78.1 million | 2025-12 |
| Partnership for Public Service Inc | Employment | 501(c)(3) | 1999 | $27.5 million | $59.2 million | 2025-12 |
| American Hotel & Lodging Association Directory Corporation | 501(c)(6) | 1953 | $27.5 million | $34.5 million | 2024-12 | |
| Durable Capital for Sustainable Outcomes Inc | Public and societal benefit | 501(c)(3) | 2024 | $27.5 million | $25.4 million | 2024-12 |
| States Newsroom | Arts, culture and humanities | 501(c)(3) | 2019 | $27.5 million | $9.9 million | 2024-12 |
| Growth Energy | Community improvement and capacity building | 501(c)(6) | 2009 | $27.4 million | $14.1 million | 2024-12 |
| Financial Services Forum | Community improvement and capacity building | 501(c)(6) | 2001 | $27.4 million | $8.6 million | 2024-12 |
| Endocrine Society | Diseases, disorders and medical disciplines | 501(c)(3) | 1942 | $27.3 million | $81.4 million | 2024-12 |
| National Association of Independent Schools Inc | 501(c)(3) | 1963 | $27.3 million | $77.1 million | 2025-06 | |
| Ingenuity Prep | Education | 501(c)(3) | 2014 | $27.2 million | $33.4 million | 2025-06 |
| Center for Nonprofit Advancements Benefits Trust | 501(c)(9) | 1989 | $27.1 million | $5.2 million | 2025-06 | |
| American Forest and Paper Association Inc | 501(c)(6) | 1995 | $27 million | $28.4 million | 2024-12 | |
| Association of Corporate Counsel | 501(c)(6) | 1983 | $27 million | $29.3 million | 2025-09 | |
| Women for Women International | International, foreign affairs and national security | 501(c)(3) | 1994 | $27 million | $19.7 million | 2025-12 |
| Lutheran Social Services of the National Capital Area Inc | Human services | 501(c)(3) | 1959 | $26.9 million | $11.3 million | 2025-09 |
| International Franchise Association Inc | 501(c)(6) | 1961 | $26.8 million | $54.6 million | 2025-10 | |
| Public Citizen Foundation Inc | Public and societal benefit | 501(c)(3) | 1992 | $26.8 million | $45 million | 2025-09 |
| Common Cause Education Fund | Public and societal benefit | 501(c)(3) | 2000 | $26.8 million | $34.1 million | 2025-06 |
| Clearpath Inc | Environment | 501(c)(3) | 2018 | $26.6 million | $24.4 million | 2025-12 |
| Phillips Collection | Arts, culture and humanities | 501(c)(3) | 1963 | $26.6 million | $131.8 million | 2025-07 |
| Childrens School Services | Health care | 501(c)(3) | 2018 | $26.6 million | $5.8 million | 2025-06 |
| Priorities USA | Civil rights, social action and advocacy | 501(c)(4) | 2017 | $26.5 million | $2 million | 2024-12 |
| Israel On Campus Coalition Inc | Education | 501(c)(3) | 2012 | $26.4 million | $14.6 million | 2025-06 |
| American Society for Engineering Education | 501(c)(3) | 1950 | $26.4 million | $15.1 million | 2025-09 | |
| National League of Cities | 501(c)(4) | 1933 | $26.3 million | $239.9 million | 2025-09 | |
| Greenpeace Fund Inc | Environment | 501(c)(3) | 1979 | $26.3 million | $43 million | 2024-12 |
| Educause | Education | 501(c)(3) | 1998 | $26.3 million | $52.8 million | 2025-06 |
| Ukraine House DC Foundation Inc | Arts, culture and humanities | 501(c)(3) | 2022 | $26.3 million | $8.6 million | 2025-12 |
| American Investment Council | Employment | 501(c)(6) | 2008 | $26.3 million | $11.3 million | 2024-12 |
| Family Research Council Inc | Human services | 501(c)(3) | 2020 | $26.2 million | $23.8 million | 2025-06 |
| United States Letter Carriers Mutual Benefit Association | 501(c)(5) | 1940 | $26.1 million | $257.1 million | 2024-12 | |
| Partners of the Americas Inc | International, foreign affairs and national security | 501(c)(3) | 1967 | $26 million | $29.7 million | 2024-12 |
| Congressional Black Caucus Foundation Inc | Civil rights, social action and advocacy | 501(c)(3) | 1979 | $25.9 million | $27.3 million | 2025-12 |
| National Alliance of State and Territorial Aids Directors | Health care | 501(c)(3) | 1993 | $25.7 million | $15 million | 2025-09 |
| American Public Health Association Inc | Health care | 501(c)(3) | 1935 | $25.7 million | $36.6 million | 2025-06 |
| Marthas Table | Food, agriculture and nutrition | 501(c)(3) | 1980 | $25.6 million | $70 million | 2025-06 |
| International Crisis Group | International, foreign affairs and national security | 501(c)(3) | 1995 | $25.6 million | $65.5 million | 2025-06 |
| Forafrika | Religion-related | 501(c)(3) | 1989 | $25.4 million | $653,626 | 2025-12 |
| Food & Friends Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 1990 | $25.2 million | $44.3 million | 2025-09 |
| Personal Care Products Council | 501(c)(6) | 1942 | $25.2 million | $34.2 million | 2024-12 | |
| The Executive Leadership Council Inc | 501(c)(3) | 1989 | $24.9 million | $64.9 million | 2024-12 | |
| St Coletta Special Education Charter School | Education | 501(c)(3) | 2004 | $24.8 million | $6.3 million | 2025-06 |
| Association for Diagnostics & Laboratory Medicine Inc | Education | 501(c)(3) | 1970 | $24.8 million | $40.4 million | 2025-03 |
| Future Now Action | Public and societal benefit | 501(c)(4) | 2020 | $24.8 million | $10.9 million | 2025-06 |
| International Masonry Training and Education Foundation | Education | 501(c)(3) | 2010 | $24.7 million | $37.7 million | 2025-12 |
| Certified Automotive Parts Association | 501(c)(6) | 1989 | $24.6 million | $17.7 million | 2025-12 | |
| American University of Rome | Education | 501(c)(3) | 1971 | $24.5 million | $22.3 million | 2025-06 |
| Ufcw Health Insurance Plan for Retirees | Mutual and membership benefit | 501(c)(9) | 2016 | $24.5 million | $176,866 | 2025-02 |
| Friendship Place | Housing and shelter | 501(c)(3) | 1995 | $24.3 million | $10.6 million | 2025-09 |
| Coalition for Green Capital | Environment | 501(c)(3) | 2014 | $24.3 million | $5.02 billion | 2024-12 |
| Reproductive Freedom for All Foundation | 501(c)(3) | 1977 | $24.2 million | $47.3 million | 2025-09 | |
| Consumer Healthcare Products Association | 501(c)(6) | 1943 | $24.2 million | $34.2 million | 2025-12 | |
| Milton Gottesman Jewish Day School of the Nations Capital | Education | 501(c)(3) | 1999 | $24.2 million | $55 million | 2025-06 |
| National Womens Law Center | 501(c)(3) | 1981 | $24.2 million | $105.5 million | 2025-06 | |
| Centronia | Human services | 501(c)(3) | 1992 | $24 million | $10.4 million | 2025-06 |
| Usaging | 501(c)(3) | 1982 | $24 million | $9.2 million | 2025-12 | |
| Jack & Jill of America Inc | 501(c)(4) | 1964 | $24 million | $9.9 million | 2025-05 | |
| Childrens Defense Fund | Civil rights, social action and advocacy | 501(c)(3) | 1969 | $24 million | $40.1 million | 2024-12 |
| Smart VSTD Group Plan | Mutual and membership benefit | 501(c)(9) | 2011 | $23.9 million | $19.6 million | 2024-12 |
| Accion International | International, foreign affairs and national security | 501(c)(3) | 1965 | $23.8 million | $310.5 million | 2024-12 |
| Consumer Bankers Association | 501(c)(6) | 1942 | $23.8 million | $28.1 million | 2025-09 | |
| Digital Pioneers Academy Corporation | Education | 501(c)(3) | 2018 | $23.7 million | $15.7 million | 2025-06 |
| Institute of Scrap Recycling Industries Inc | 501(c)(6) | 1990 | $23.6 million | $47.2 million | 2024-12 | |
| Washington Gas Light Company Union Veba Trust | 501(c)(9) | 1995 | $23.6 million | $361.8 million | 2024-12 | |
| National Institute of Building Sciences | Public safety, disaster preparedness and relief | 501(c)(3) | 1979 | $23.5 million | $25.9 million | 2025-09 |
| Stacy Mark Reed Foundation Inc | Health care | 501(c)(3) | 2010 | $23.4 million | $288.9 million | 2025-06 |
| Equal Justice Works | Crime and legal-related | 501(c)(3) | 1986 | $23.4 million | $41 million | 2025-08 |
| Apple Tree Early Learning Public Charter School | Education | 501(c)(3) | 2006 | $23.4 million | $32.8 million | 2025-06 |
| North American Securities Administrators Association Inc | 501(c)(3) | 1994 | $23.1 million | $49 million | 2024-12 | |
| Meridian Public Charter School | Education | 501(c)(3) | 2000 | $23.1 million | $28.8 million | 2025-06 |
| Heart Rhythm Society Inc | 501(c)(3) | 1980 | $23 million | $16.9 million | 2025-09 | |
| Black Economic Alliance Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $22.9 million | $28.9 million | 2024-12 |
By cause in Washington, DC
- Education 1,497
- Arts, culture and humanities 948
- Community improvement and capacity building 942
- Human services 892
- International, foreign affairs and national security 782
- Religion-related 602
- Philanthropy, voluntarism and grantmaking foundations 522
- Public and societal benefit 478
- Civil rights, social action and advocacy 468
- Environment 372
- Health care 367
- Youth development 322
- Recreation and sports 282
- Crime and legal-related 190
- Employment 178
- Housing and shelter 168
- Science and technology 163
- Mental health and crisis intervention 136
- Mutual and membership benefit 118
- Social science 116
- Diseases, disorders and medical disciplines 106
- Food, agriculture and nutrition 103
- Medical research 80
- Public safety, disaster preparedness and relief 75
- Animal-related 66
Nonprofits in every city of the state
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.