Funding search · Health

Foundations that fund rare diseases research

15 private foundations with a record of paying for rare diseases, taken from their IRS Form 990-PF filings. These are grants already made — evidence of what a funder backs, not an open call.

Where the money went

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The Orphan Disease Pathway Project → University of Pennsylvania: $2.1M across 1 grant, latest 2022Weiss Family Foundation → University of Pennsylvania: $754K across 1 grant, latest 2022Gray Foundation → Orphan Disease Pathway Project: $150K across 3 grants, latest 2022The Seaman Family Foundation Inc → Orphan Disease Pathway Project: $100K across 1 grant, latest 2022Hypopara Research Foundation → University of Pennsylvania: $92K across 1 grant, latest 2024Jill and Mark Rachesky Charitable → Orphan Disease Pathway Project: $70K across 1 grant, latest 2022The Dinan Family Foundation → The Orphan Disease Pathway: $50K across 1 grant, latest 2022Cadasil Association → University of Pennsylvania: $35K across 3 grants, latest 2024The Richard Vague Foundation → Orphan Disease Pathway Project: $25K across 1 grant, latest 2022Greene Van Arsdale Foundation → Orphan Disease Pathway Project: $25K across 1 grant, latest 2022The Fallen Angels Foundation Inc → University of Notre Dame: $23K across 3 grants, latest 2024Dravet Syndrome Foundation Inc → Coriell Institute for Medical Research: $22K across 2 grants, latest 2025Curefa Foundation Inc → Orphan Disease Pathway Project: $10K across 1 grant, latest 2022Susan Zirkl Z L Memorial Charitable → National Organization for Rare: $8K across 2 grants, latest 2024Arnolie Family Foundation → Rare Village Foundation: $5K across 1 grant, latest 2024Hypopara Research Foundation → Trustees of the University of Pennsylvania: $25K across 1 grant, latest 2022The Orphan Disease Pathway Project: $2.1M on this topic. Open the funder.The Orphan Disease Pathway Pr…$2.1MWeiss Family Foundation: $754K on this topic. Open the funder.Weiss Family Foundation$754KGray Foundation: $150K on this topic. Open the funder.Gray Foundation$150KHypopara Research Foundation: $117K on this topic. Open the funder.Hypopara Research Foundation$117KThe Seaman Family Foundation Inc: $100K on this topic. Open the funder.The Seaman Family Foundation…$100KJill and Mark Rachesky Charitable: $70K on this topic. Open the funder.Jill and Mark Rachesky Charit…$70KThe Dinan Family Foundation: $50K on this topic. Open the funder.The Dinan Family Foundation$50KCadasil Association: $35K on this topic. Open the funder.Cadasil Association$35KThe Richard Vague Foundation: $25K on this topic. Open the funder.The Richard Vague Foundation$25KGreene Van Arsdale Foundation: $25K on this topic. Open the funder.Greene Van Arsdale Foundation$25KThe Fallen Angels Foundation Inc: $23K on this topic. Open the funder.The Fallen Angels Foundation…$23KDravet Syndrome Foundation Inc: $22K on this topic. Open the funder.Dravet Syndrome Foundation Inc$22KCurefa Foundation Inc: $10K on this topic. Open the funder.Curefa Foundation Inc$10KSusan Zirkl Z L Memorial Charitable: $8K on this topic. Open the funder.Susan Zirkl Z L Memorial Char…$8KArnolie Family Foundation: $5K on this topic. Open the funder.Arnolie Family Foundation$5KUniversity of Pennsylvania: received $3.0M on this topicUniversity of Pennsylvania$3.0MOrphan Disease Pathway Project: received $355K on this topicOrphan Disease Pathway Project$355KThe Orphan Disease Pathway: received $50K on this topicThe Orphan Disease Pathway$50KTrustees of the University of Pennsylvania: received $25K on this topicTrustees of the University of P…$25KOrphan Disease Pathway Project: received $25K on this topicOrphan Disease Pathway Project$25KUniversity of Notre Dame: received $23K on this topicUniversity of Notre Dame$23KCoriell Institute for Medical Research: received $22K on this topicCoriell Institute for Medical R…$22KNational Organization for Rare: received $8K on this topicNational Organization for Rare$8KRare Village Foundation: received $5K on this topicRare Village Foundation$5K
15 funders, 9 recipients, grants matching “rare diseases” 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, filing years 20192025. Foundations rarely accept unsolicited applications; the route in is usually a program officer.