| United Food and Commercial Workers International Union | 501(c)(5) | 1941 | $261.8 million | $677.3 million | 2024-12 |
| National Football League Players Association | 501(c)(5) | 1971 | $163.5 million | $1.31 billion | 2025-02 |
| Davis Memorial Goodwill Industries | 501(c)(3) | 1942 | $81.3 million | $99.6 million | 2024-12 |
| American Federation of Government Employees | 501(c)(5) | 1940 | $80.2 million | $127.7 million | 2024-12 |
| Business Roundtable Inc | 501(c)(6) | 2017 | $65.6 million | $50.2 million | 2024-12 |
| Home Builders Institute | 501(c)(3) | 1984 | $50.4 million | $24 million | 2024-12 |
| International Union of Operating Engineers National Training Fund | 501(c)(3) | 1995 | $38.7 million | $73.7 million | 2025-06 |
| Opportunity at Work Inc | 501(c)(3) | 2016 | $30.4 million | $35.6 million | 2024-12 |
| Partnership for Public Service Inc | 501(c)(3) | 1999 | $27.5 million | $59.2 million | 2025-12 |
| American Investment Council | 501(c)(6) | 2008 | $26.3 million | $11.3 million | 2024-12 |
| National Music Publishers Association Inc | 501(c)(6) | 2016 | $20.2 million | $28.3 million | 2025-06 |
| The Corps Network | 501(c)(3) | 1986 | $15.7 million | $6.2 million | 2025-09 |
| Lift Inc | 501(c)(3) | 1999 | $14.2 million | $26.9 million | 2025-06 |
| National Marine Engineers Beneficial Association | 501(c)(5) | 1944 | $13.4 million | $34.4 million | 2024-12 |
| American Finanical Services Association | 501(c)(6) | 1957 | $13.3 million | $25.5 million | 2025-12 |
| Jobs With Justice Education Fund | 501(c)(3) | 2005 | $10.5 million | $17.7 million | 2024-12 |
| Strategic Organizing Center | 501(c)(5) | 2007 | $10.2 million | $9 million | 2024-12 |
| Urban Alliance Foundation Inc | 501(c)(3) | 1996 | $9.6 million | $19.1 million | 2024-12 |
| Former Player Labor-Management Cooperation Committee Trust | 501(c)(5) | 2019 | $8.8 million | $14 million | 2025-02 |
| International Association of Sheet Metal Air Rail & Transportation | 501(c)(5) | 2015 | $8 million | $10.4 million | 2024-12 |
| Society of American Foresters | 501(c)(3) | 1972 | $6.4 million | $27.3 million | 2024-12 |
| Economic Innovation Group Inc | 501(c)(4) | 2014 | $5.7 million | $9.4 million | 2024-12 |
| Career Path DC | 501(c)(3) | 2010 | $5.6 million | $917,898 | 2024-12 |
| International Brotherhood of Teamsters Supplemental Benefits Trust | 501(c)(5) | 2006 | $4.9 million | $36.3 million | 2025-12 |
| Cooperative Development Foundation | 501(c)(3) | 1956 | $4.6 million | $12.9 million | 2025-12 |
| J H P Inc | 501(c)(3) | 1989 | $3.7 million | $2 million | 2025-06 |
| Center for Military Recruitment Assessment and Veterans Employment | 501(c)(3) | 2004 | $3.5 million | $3.9 million | 2025-12 |
| Dog Tag Inc | 501(c)(3) | 2012 | $3.4 million | $3.1 million | 2025-06 |
| Building Talent Foundation | 501(c)(3) | 2020 | $3.4 million | $2 million | 2025-12 |
| Global Womens Innovation Network | 501(c)(3) | 2010 | $3.1 million | $4.1 million | 2024-12 |
| The Afl-Cio Working for America Institute | 501(c)(3) | 1992 | $2.7 million | $4.4 million | 2025-06 |
| Nea Properties Inc | 501(c)(2) | 2010 | $2.2 million | $15 million | 2025-08 |
| Association of Womens Business Centers | 501(c)(3) | 2003 | $2.2 million | $1.2 million | 2024-12 |
| Root Change | 501(c)(3) | 2011 | $2.1 million | $611,475 | 2024-12 |
| Regional Local Union No 847 | 501(c)(5) | 2011 | $2 million | $3.2 million | 2025-06 |
| Employ America | 501(c)(3) | 2019 | $2 million | $1.5 million | 2024-12 |
| Shift Work Forward Inc | 501(c)(3) | 2016 | $1.7 million | $17.4 million | 2024-12 |
| Jubilee Jobs Inc | 501(c)(3) | 1983 | $1.5 million | $3 million | 2024-12 |
| Harrison Center for Career Education | 501(c)(3) | 1986 | $1.4 million | $14.6 million | 2025-06 |
| Skill Growth Dba Chooseu | 501(c)(3) | 2020 | $1.3 million | $189,792 | 2024-12 |
| Regional Local Union No 846 of the International Association | 501(c)(6) | 2010 | $1.2 million | $4.4 million | 2025-06 |
| National Alliance of Postal and Federal Employees | 501(c)(5) | 1951 | $1.1 million | $1.1 million | 2024-12 |
| International Union of Operating Engineers and Pipe Line | 501(c)(5) | 2000 | $1.1 million | $2.1 million | 2025-03 |
| United States National Soccer Team Players Association | 501(c)(5) | 2000 | $1 million | $431,103 | 2025-12 |
| Beloved Community Incubator Inc | 501(c)(3) | 2020 | $988,282 | $335,572 | 2024-12 |
| Council of School Officers Local 4 American Federation of School Adm | 501(c)(5) | 2016 | $964,972 | $2.2 million | 2025-12 |
| Wanada Automobile Dealer Educationinstitute | 501(c)(3) | 2008 | $938,482 | $1.7 million | 2024-12 |
| International Association of Sheet Metal Air Rail & Transportation | 501(c)(5) | 2015 | $848,952 | $1.7 million | 2025-12 |
| National Alliance for Fair Contracting Inc | 501(c)(5) | 2001 | $727,227 | $550,880 | 2024-12 |
| Time for Change | 501(c)(3) | 2016 | $720,101 | $112,140 | 2025-12 |
| Washington Interfaith Network | 501(c)(3) | 1997 | $701,798 | $1.9 million | 2024-12 |
| Women Business Collaborative | 501(c)(3) | 2019 | $687,768 | $499,253 | 2025-12 |
| Coalition of Airline Pilots Association | 501(c)(6) | 2001 | $683,534 | $693,638 | 2024-12 |
| Fraternal Order of Police-United States Capitol Labor Committee Inc | 501(c)(5) | 1999 | $647,777 | $1.3 million | 2025-08 |
| National Association of Negro Business and Professional Womens C | 501(c)(3) | 1998 | $601,868 | $466,505 | 2025-06 |
| Suited for Change | 501(c)(3) | 1992 | $552,815 | $748,754 | 2024-12 |
| Comm Workers of Amer National Education and Training Trust | 501(c)(3) | 1999 | $499,869 | $455,025 | 2024-12 |
| National Utility Industry Training Fund | 501(c)(3) | 2009 | $493,105 | $750,489 | 2024-12 |
| Southeast Welding Center Inc | 501(c)(3) | 2015 | $464,005 | $3,858 | 2025-12 |
| Certification Institute for Research Quality Inc | 501(c)(6) | 2011 | $460,522 | $305,153 | 2024-12 |
| Trabajadores Unidos de Washington DC | 501(c)(3) | 2014 | $438,557 | $476,987 | 2025-12 |
| PCC Stride Inc | 501(c)(3) | 1994 | $433,745 | $249,400 | 2024-06 |
| District of Columbia Students Construction Trades Foundation Inc | 501(c)(3) | 2006 | $411,017 | $613,220 | 2025-09 |
| Operating Engineers Nationalcharity Fund | 501(c)(3) | 2008 | $379,161 | $2.5 million | 2024-12 |
| Clean Transportation & Advanced Manufacturing Electrical Training | 501(c)(3) | 2025 | $373,114 | $179,396 | 2025-12 |
| Police Association of the District of Columbia Inc | 501(c)(5) | 2020 | $318,035 | $189,520 | 2025-12 |
| Iatse Local 22 Training Fund | 501(c)(3) | 2001 | $318,008 | $813,409 | 2025-12 |
| Urban Ed Inc | 501(c)(3) | 2000 | $311,547 | $57,521 | 2025-09 |
| Mac Admins Foundation | 501(c)(3) | 2022 | $310,885 | $386,857 | 2024-12 |
| Dress for Success-Washington DC | 501(c)(3) | 2002 | $242,694 | $101,855 | 2025-12 |
| Usagm Employee Association | 501(c)(3) | 2019 | $230,711 | $29,336 | 2025-12 |
| Limitless Endeavors | 501(c)(3) | 2020 | $182,680 | $35,560 | 2025-12 |
| Central Community Development Corporation | 501(c)(3) | 2016 | $180,869 | $715,674 | 2024-12 |
| Campaign Workers Guild | 501(c)(5) | 2019 | $170,563 | $226,894 | 2025-12 |
| Nuclear Power Labor Management Cooperation Committee Trust | 501(c)(5) | 2011 | $161,642 | $4 million | 2025-06 |
| Afge 2978 | 501(c)(5) | 2026 | $153,832 | $72,970 | 2025-12 |
| Fraternal Order of Police Dept of Human Services Labor Committee | 501(c)(5) | 2017 | $144,726 | $151,227 | 2025-12 |
| National Network of Nonprofit Search Consultants | 501(c)(3) | 2021 | $136,732 | $100,203 | 2025-06 |
| Iaff Local 3217 Mwaa Professional Firefighters Association | 501(c)(5) | 2024 | $136,039 | $86,363 | 2025-09 |
| Romanian Moldovan Trucking Association of North America | 501(c)(3) | 2022 | $122,771 | $882 | 2025-12 |
| American Federation Government Empl Oyee Local 32 | 501(c)(5) | 2026 | $109,947 | $248,320 | 2021-12 |
| Ready Willing & Working Inc | 501(c)(3) | 2023 | $105,719 | $49,690 | 2025-09 |
| Right Beginnings Inc | 501(c)(3) | 2018 | $67,381 | $144,216 | 2024-12 |
| District of Columbia Association of Nurse Anesthetists | 501(c)(6) | 2020 | $57,788 | $229,441 | 2025-08 |
| District of Columbia Association of Land Surveyors Inc | 501(c)(6) | 2012 | $56,363 | $96,493 | 2024-12 |
| Wipp Education Foundation Inc | 501(c)(3) | 2010 | $46,480 | $267,676 | 2024-12 |
| American Federation of Government Employees | 501(c)(5) | 2026 | $44,032 | $143,931 | 2024-12 |
| George Goodman Foundation | 501(c)(3) | 2011 | $41,600 | $0 | 2022-12 |
| Independent Staff Union | 501(c)(5) | 2021 | $40,068 | $437,584 | 2025-09 |
| Afscme Training and Education Institute | 501(c)(3) | 1981 | $38,622 | $294,245 | 2024-12 |
| American Federation of Government Employees | 501(c)(5) | 1940 | $34,706 | $146,876 | 2025-12 |
| Naca BCTD Labor-Management Cooperation Trust Fund | 501(c)(5) | 2003 | $31,609 | $4,882 | 2025-06 |
| Doctors Council of the District of Columbia | 501(c)(5) | 2022 | $18,436 | $98,602 | 2025-09 |
| Employ America Action Fund | 501(c)(4) | 2022 | $7,748 | $710,538 | 2024-12 |
| Returning Citizens in Arts Inc | 501(c)(3) | 2022 | $7,500 | $1 | 2024-12 |
| 295 Open Spaces | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| 4 Day Workweek Campaign | 501(c)(4) | 2019 | $0 | $0 | 2025-12 |
| 6023labs | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Aft 403 B Annuity Trust | 501(c)(5) | 2013 | $0 | $0 | 2026-06 |
| All Faith Consortium | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| America By Design Foundation | 501(c)(3) | 2025 | | | |
| American Federation of Government E Mployees Local No 25 | 501(c)(5) | 2026 | | | |
| American Federation of State County & Municipal Employees | 501(c)(5) | 2012 | $0 | $0 | 2025-11 |
| American Federation of State County & Municipal Employees | 501(c)(5) | 1957 | $0 | $0 | 2025-12 |
| American Federation of Teachers | 501(c)(5) | 1967 | $0 | $0 | 2025-06 |
| American Institute of Implant Dentistry Foundation | 501(c)(6) | 2013 | $0 | $0 | 2024-12 |
| American Shipping and Trading Association | 501(c)(6) | 2025 | $0 | $0 | 2025-12 |
| Ard-Dyar | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Association of Flight Attendants-Cwa | 501(c)(5) | 2025 | | | |
| Aweborn | 501(c)(3) | 2026 | | | |
| Black Educators Collective | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Blossom Bakery | 501(c)(3) | 2021 | | $47,668 | 2025-12 |
| Business Technology Career Center Inc | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| C F L S Restaurant | 501(c)(3) | 2013 | $0 | $0 | 2025-05 |
| Career 4ce | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Cease Fire Dont Smoke the Brothers Inc | 501(c)(3) | 1996 | $0 | $0 | 2024-12 |
| Coalition To Preserve Independent Contractor Status | 501(c)(4) | 2007 | $0 | $0 | 2025-12 |
| Community Resources Inc | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Conecta-Us | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| DMV Academy | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| District of Columbia Chapter of the National Association of Resid | 501(c)(6) | 2018 | $0 | $0 | 2025-12 |
| District of Columbia Makers Guild | 501(c)(6) | 2023 | $0 | $0 | 2025-12 |
| Ebii Foundation | 501(c)(3) | 2026 | | | |
| Ecu Education Fund | 501(c)(3) | 2020 | $0 | $0 | 2025-06 |
| Enitor | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Equality Usda | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| FDN To Counter Terrorism Transnatl Crime Illicit Trade and Corruption | 501(c)(3) | 2026 | | | |
| Fbira Washington Field | 501(c)(4) | 2018 | $0 | $0 | 2025-12 |
| Fort Davis Family CDC Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Foster Care Shines Plus Inc | 501(c)(3) | 2025 | | | |
| Fresh Start Project | 501(c)(3) | 2018 | $0 | $0 | 2023-12 |
| Golden Leon Shoe Academy Inc | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Helens TH Foundation | 501(c)(3) | 2026 | | | |
| Heroes Place Inc | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| High-Road Construction Defense Fund | 501(c)(5) | 2019 | $0 | $0 | 2025-06 |
| Hope Empowerment Foundation | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| House of Fannie Foundation Inc | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Hydrogen Sulfide Coalition | 501(c)(6) | 2009 | $0 | $0 | 2025-12 |
| Ice8000 Kingdom | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| In Union USA Foundation | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Industrial Workers of the World | 501(c)(5) | 2013 | $0 | $0 | 2025-06 |
| Interim Executive Network Inc | 501(c)(4) | 2025 | $0 | $0 | 2025-12 |
| International Association of Sheet Metal Air Rail & Transportation | 501(c)(5) | 2015 | $0 | $0 | 2025-12 |
| International Association of Sheet Metal Air Rail and Transportation | 501(c)(5) | 2015 | $0 | $440.2 million | 2024-12 |
| Latino Executive Network Inc | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Maritime Labor Alliance | 501(c)(5) | 2016 | $0 | $0 | 2025-12 |
| Merit Systems Protection Board Professional Association | 501(c)(5) | 2012 | $0 | $0 | 2026-02 |
| Metropolitan DC Area Cluw | 501(c)(5) | 2020 | $0 | $0 | 2025-12 |
| Natca Hyi Local | 501(c)(5) | 2018 | $0 | $0 | 2025-12 |
| National Association of Letter Carriers | 501(c)(5) | 1944 | $0 | $0 | 2026-03 |
| National Capital Region Society of Healthcare Engineers | 501(c)(6) | 2016 | $0 | $0 | 2024-12 |
| National Commission for the Certification of Surgical Assistan | 501(c)(3) | 2024 | | | |
| National Federation of Business and Professional Womens Clubs | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| National Labor Relations Board Professional Association 1717 Penn | 501(c)(5) | 2012 | $0 | $0 | 2025-12 |
| National Society of Black Engineers | 501(c)(3) | 2020 | $0 | $0 | 2023-07 |
| National Symphony Orchestra Musicians Society | 501(c)(5) | 2012 | $0 | $0 | 2025-08 |
| National Treasury Employees Union | 501(c)(5) | 2012 | $0 | $0 | 2024-12 |
| National Treasury Employees Union Chapter 213 | 501(c)(5) | 2026 | | | |
| Nflpa Retired Players Jacksonville Chapter Inc | 501(c)(6) | 2006 | $0 | $0 | 2026-02 |
| Nteu Chapter 101 | 501(c)(5) | 2025 | | | |
| Professional Certification Management Institute | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Riverhead Teaching Assistants Association | 501(c)(5) | 2022 | $0 | $0 | 2026-06 |
| Savoreux Development Foundation Inc | 501(c)(3) | 1995 | $0 | $0 | 2025-12 |
| Sewing Opportunity Neverending Inc | 501(c)(3) | 2003 | $0 | $0 | 2024-12 |
| Sitting Room Ministry Inc | 501(c)(3) | 2019 | $0 | $0 | 2023-12 |
| Spirit of Place - Spirit of Design Inc | 501(c)(3) | 1999 | $0 | $0 | 2025-12 |
| Tabiya Us | 501(c)(3) | 2026 | | | |
| Tableology Corporation | 501(c)(3) | 2024 | | | |
| The Blush Project Foundation | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| The Jewel of Vema | 501(c)(3) | 2026 | | | |
| The Sunshine Initiative Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Trade Adjustment Assistance Coalition | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Training Fund for the Associated Air Balance Council | 501(c)(3) | 1982 | $0 | $0 | 2025-12 |
| Transitional Associates Inc | 501(c)(3) | 2015 | $0 | $0 | 2023-09 |
| Twu Reserve Fund | 501(c)(5) | 2018 | $0 | $1 | 2025-08 |
| Verve Techgateway Foundation | 501(c)(3) | 2026 | | | |
| We See Potential Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Workplace Dignity Center | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |