Funding search

Find who already funds work like yours.

Private foundations don’t post open calls, so nobody can search them. We read IRS filings instead — 9.6 million grants from 174,053 foundations and grantmaking charities, searchable by what the money was actually for.

12 funders with a record of paying for “longest”

Where the money went

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Walton Family Foundation Inc → Baton Rouge Area Foundation: $600K across 1 grant, latest 2024The Robert Wood Johnson Foundation → Harvard U: $154K across 1 grant, latest 2020Nextdoor Foundation → Nyc Next Inc: $150K across 1 grant, latest 2025The Ford Foundation → Bimshire Project LLC: $150K across 2 grants, latest 2023John Simon Guggenheim Memorial → Paul Werth: $35K across 1 grant, latest 2023Felix E Martin Jr Foundation Inc → Longest Elementary School: $19K across 2 grants, latest 2024Mercury Aircraft Foundation → Fred & Harriett Taylor Memorial Library: $12K across 1 grant, latest 2024The California Wellness Foundation → Lancaster Museum and Public Art Foundation: $10K across 1 grant, latest 2022Claure Family Foundation Inc → International Institute of New England: $10K across 1 grant, latest 2023Howard P Arnold Foundation Inc → Alzheimer's Association: $3K across 3 grants, latest 2025Arizona Eastern Star Foundation → Alzheimer's Associationthe Longest: $2K across 1 grant, latest 2025The Knowlton Foundation → Alzheimer's Accociaion - Longest Day: $1K across 1 grant, latest 2025The Robert Wood Johnson Foundation → Harvard U: $85K across 1 grant, latest 2022The Knowlton Foundation → The Longest Day-Alzheimer's Association: $1K across 1 grant, latest 2022Walton Family Foundation Inc: $600K on this topic. Open the funder.Walton Family Foundation Inc$600KThe Robert Wood Johnson Foundation: $240K on this topic. Open the funder.The Robert Wood Johnson Found…$240KNextdoor Foundation: $150K on this topic. Open the funder.Nextdoor Foundation$150KThe Ford Foundation: $150K on this topic. Open the funder.The Ford Foundation$150KJohn Simon Guggenheim Memorial: $35K on this topic. Open the funder.John Simon Guggenheim Memorial$35KFelix E Martin Jr Foundation Inc: $19K on this topic. Open the funder.Felix E Martin Jr Foundation…$19KMercury Aircraft Foundation: $12K on this topic. Open the funder.Mercury Aircraft Foundation$12KThe California Wellness Foundation: $10K on this topic. Open the funder.The California Wellness Found…$10KClaure Family Foundation Inc: $10K on this topic. Open the funder.Claure Family Foundation Inc$10KHoward P Arnold Foundation Inc: $3K on this topic. Open the funder.Howard P Arnold Foundation Inc$3KArizona Eastern Star Foundation: $2K on this topic. Open the funder.Arizona Eastern Star Foundati…$2KThe Knowlton Foundation: $2K on this topic. Open the funder.The Knowlton Foundation$2KBaton Rouge Area Foundation: received $600K on this topicBaton Rouge Area Foundation$600KHarvard U: received $154K on this topicHarvard U$154KNyc Next Inc: received $150K on this topicNyc Next Inc$150KBimshire Project LLC: received $150K on this topicBimshire Project LLC$150KHarvard U: received $85K on this topicHarvard U$85KPaul Werth: received $35K on this topicPaul Werth$35KLongest Elementary School: received $19K on this topicLongest Elementary School$19KFred & Harriett Taylor Memorial Library: received $12K on this topicFred & Harriett Taylor Memorial…$12KLancaster Museum and Public Art Foundation: received $10K on this topicLancaster Museum and Public Art…$10KInternational Institute of New England: received $10K on this topicInternational Institute of New…$10KAlzheimer's Association: received $3K on this topicAlzheimer's Association$3KAlzheimer's Associationthe Longest: received $2K on this topicAlzheimer's Associationthe Long…$2KAlzheimer's Accociaion - Longest Day: received $1K on this topicAlzheimer's Accociaion - Longes…$1KThe Longest Day-Alzheimer's Association: received $1K on this topicThe Longest Day-Alzheimer's Ass…$1K
12 funders, 14 recipients, grants matching “longest” only. Ribbon width is proportional to the total given; each funder has its own colour (smaller funders in gray). Hover a name to isolate its flows, click a funder to open it. Drag to move around; zoom with the buttons, a double-click, or the wheel after clicking the map.

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Source: IRS Form 990-PF Part XV and Form 990 Schedule I, tax years 20192025. These are grants already paid, a record of what an organization funds rather than an open call. Private foundations rarely accept unsolicited applications and the route in is usually a program officer; grantmaking charities and associations more often run real application cycles, so check their website. How this data is built, and its limits →