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.

2 funders with a record of paying for “donationdate”

Where the money went

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The Mattei-Rothschild Foundation Inc → The Medical College of Wisconsin: $221K across 3 grants, latest 2025John Burton Harter Foundation → Louisiana State Museum: $9K across 1 grant, latest 2023The Mattei-Rothschild Foundation Inc → University of Kentucky: $152K across 2 grants, latest 2025The Mattei-Rothschild Foundation Inc → Vanderbilt University: $108K across 2 grants, latest 2025The Mattei-Rothschild Foundation Inc → University of Pittsburgh: $102K across 1 grant, latest 2025The Mattei-Rothschild Foundation Inc → Clinic for the Rehabilitation of Wildlife: $15K across 1 grant, latest 2023The Mattei-Rothschild Foundation Inc: $599K on this topic. Open the funder.The Mattei-Rothschild Foundat…$599KJohn Burton Harter Foundation: $9K on this topic. Open the funder.John Burton Harter Foundation$9KThe Medical College of Wisconsin: received $221K on this topicThe Medical College of Wisconsin$221KUniversity of Kentucky: received $152K on this topicUniversity of Kentucky$152KVanderbilt University: received $108K on this topicVanderbilt University$108KUniversity of Pittsburgh: received $102K on this topicUniversity of Pittsburgh$102KClinic for the Rehabilitation of Wildlife: received $15K on this topicClinic for the Rehabilitation o…$15KLouisiana State Museum: received $9K on this topicLouisiana State Museum$9K
2 funders, 6 recipients, grants matching “donationdate” 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.

This is one keyword. PaperOrbit reads your actual paper and searches on everything in it — population, methods, outcomes — then explains why each funder fits.

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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 →