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.

6 funders with a record of paying for “heavyweight”

Where the money went

1.0×
St Louis Community Foundation Inc → Georgetown University: $55K across 1 grant, latest 2022Rk Mellon Family Foundation → Massachusetts Institute of Technology: $10K across 1 grant, latest 2022Walden Trust → Georgetown University: $9K across 4 grants, latest 2025James & Wanda Hollensteiner Fdn → Usna Heavyweight Crew: $5K across 1 grant, latest 2025Seattle Foundation → Yale University: $5K across 1 grant, latest 2023The Comisky Family Foundation Trust → Trustees of the University of: $3K across 3 grants, latest 2025St Louis Community Foundation Inc: $55K on this topic. Open the funder.St Louis Community Foundation…$55KRk Mellon Family Foundation: $10K on this topic. Open the funder.Rk Mellon Family Foundation$10KWalden Trust: $9K on this topic. Open the funder.Walden Trust$9KJames & Wanda Hollensteiner Fdn: $5K on this topic. Open the funder.James & Wanda Hollensteiner F…$5KSeattle Foundation: $5K on this topic. Open the funder.Seattle Foundation$5KThe Comisky Family Foundation Trust: $3K on this topic. Open the funder.The Comisky Family Foundation…$3KGeorgetown University: received $64K on this topicGeorgetown University$64KMassachusetts Institute of Technology: received $10K on this topicMassachusetts Institute of Tech…$10KUsna Heavyweight Crew: received $5K on this topicUsna Heavyweight Crew$5KYale University: received $5K on this topicYale University$5KTrustees of the University of: received $3K on this topicTrustees of the University of$3K
6 funders, 5 recipients, grants matching “heavyweight” only. Ribbon width is proportional to the total given; each funder has its own colour. 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 →