| Ithaka Harbors IncNew York | Form 990 | $125,968,256FY2024 |
| Alzheimers Drug Discovery FoundationNew York | Form 990 | $82,162,763FY2025 |
| Global Poverty Project IncNew York | Form 990 | $45,061,129FY2024 |
| Social Science Research CouncilNew York | Form 990 | $14,237,307FY2025 |
| Nextcorps IncRochester | Form 990 | $13,201,479FY2025 |
| Just Capital Foundation IncNew York | Form 990 | $10,953,584FY2025 |
| Association of the Bar of the City of New York Fund IncNew York | Form 990 | $9,732,777FY2025 |
| American Federation for AgingNew York | Form 990 | $9,687,847FY2025 |
| Common JusticeBrooklyn | Form 990 | $7,405,997FY2025 |
| Council for Economic EducationNew York | Form 990 | $6,919,375FY2024 |
| Economic Club of New YorkNew York | Form 990 | $5,752,282FY2025 |
| Sifma Foundation for Investor Education Fie IncNew York | Form 990 | $5,445,461FY2025 |
| Open to Debate FoundationNew York | Form 990 | $5,234,812FY2025 |
| Inside Climate NewsBrooklyn | Form 990 | $4,266,941FY2025 |
| American Society for Psychical Research IncNew York | Form 990 | $4,165,122FY2023 |
| Association for Advancement of the Behavioral Therapies IncNew York | Form 990 | $3,035,011FY2025 |
| A Better BalanceNew York | Form 990 | $3,015,414FY2025 |
| Social Trends Institute IncNew York | Form 990 | $2,526,700FY2024 |
| Sagamore Institute of the Adirondacks IncRaquette Lake | Form 990 | $2,436,681FY2024 |
| Huntington Youth Bureau Youth Development Research Institute IncHuntington | Form 990 | $2,087,216FY2025 |
| American Arbitration Association- International Centre for DisputeNew York | Form 990 | $2,030,535FY2025 |
| Knology LtdNew York | Form 990 | $1,920,920FY2024 |
| North American Arab Council for the Social Sciences IncNew York | Form 990 | $1,828,061FY2024 |
| National Academy of Human Resources FoundationSag Harbor | Form 990 | $1,578,024FY2025 |
| Center for Economic GrowthAlbany | Form 990 | $1,456,973FY2024 |
| National Spiritualist Association of ChurchesLily Dale | None required | $1,436,165FY2024 |
| American Geographical Society of New YorkNew York | Form 990 | $1,051,632FY2024 |
| Oliveas IncAlbany | Form 990 | $994,706FY2025 |
| Center for Migration Studies of New York IncNew York | Form 990 | $951,826FY2024 |
| Archives for Research in Archetypal Symbolism IncNew York | Form 990 | $593,351FY2025 |
| Jewish Orthodox Feminist Alliance IncNew York | Form 990 | $567,114FY2025 |
| Institute for Economics and PeaceNew York | Form 990 | $525,507FY2025 |
| Tfi Digital Archive IncNew York | Form 990 | $488,757FY2024 |
| New Netherland InstituteAlbany | Form 990 | $481,324FY2025 |
| Henry Jackson Society IncNew York | Form 990 | $471,379FY2025 |
| Participatory Politics FoundationBrooklyn | Form 990 | $449,684FY2024 |
| Trac Reports IncBaldwinsville | Form 990 | $440,572FY2025 |
| The Institute for New Economic Thinking IncNew York | Form 990 | $429,626FY2024 |
| Comitas Institute for Anthropological Study IncNew York | Form 990 | $401,333FY2025 |
| Democratic Socialists of America Fund IncNew York | Form 990 | $399,886FY2024 |
| International Psychoanalytical Association Fund DelawareNew York | Form 990 | $398,337FY2024 |
| Prosecutors Center for Excellence IncNew York | Form 990 | $372,364FY2025 |
| Cloud Institute for Sustainability EducationAncram | Form 990 | $360,769FY2025 |
| Leverage ResearchAlbany | Form 990 | $357,147FY2025 |
| Citizen Science Association IncBrooklyn | Form 990 | $326,266FY2025 |
| Ngo Committee on the Status of Women NY IncNew York | Form 990 | $303,157FY2025 |
| Center for Cuban Studies IncBrooklyn | Form 990 | $296,120FY2024 |
| Foundation for Constitutional Government IncNew York | Form 990 | $290,951FY2025 |
| Seminar on the Acquisition of Latin American Library MaterialsNew York | Form 990 | $286,238FY2025 |
| Aapi of Queens and Long Island IncGarden City | Form 990 | $274,294FY2023 |