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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 “cardiac”

Where the money went

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The Chicago Community Trust → Ann & Robert H Lurie Childrens Hospital of Chicago Foundation: $1.2M across 1 grant, latest 2022Miami Heart Research Institute Inc → Fiu: $850K across 1 grant, latest 2024Dravet Syndrome Foundation Inc → Regents of the University of Michigan: $779K across 1 grant, latest 2025The Children's Heart Foundation → University of Michigan Heart Center: $743K across 3 grants, latest 2024Edwards Lifesciences Foundation → Heart to Heart Global Cardiac Care: $700K across 5 grants, latest 2024The Duke Endowment → Presbyterian Hospital Foundation: $513K across 2 grants, latest 2021American Heart Association Inc → Emory University: $500K across 1 grant, latest 2021Zoll Foundation Inc → The Feinstein Institute: $347K across 7 grants, latest 2023Community Foundation of North Texas Inc → The Haiti Cardiac Alliance: $229K across 10 grants, latest 2024Heart Warrior Foundation → Boston Childrens Hospital: $228K across 2 grants, latest 2023Andrew David Sit Foundation → Lucile Packard Foundation: $130K across 5 grants, latest 2025Global Heartcare Foundation → Rahwa Mulugeta Seyoum: $15K across 2 grants, latest 2025Miami Heart Research Institute Inc → University of Miami: $650K across 2 grants, latest 2024Edwards Lifesciences Foundation → Emergency USA-Life Support for Civilian Victims of War and Poverty: $542K across 3 grants, latest 2024The Duke Endowment → Wake Forest University Health Sciences: $321K across 3 grants, latest 2024Dravet Syndrome Foundation Inc → The Research Foundation for the State University of New York: $250K across 2 grants, latest 2025Zoll Foundation Inc → Aarhus University Hospital: $208K across 6 grants, latest 2023The Chicago Community Trust → Hoag Foundation: $200K across 2 grants, latest 2021The Children's Heart Foundation → Cincinnati Children's Hospital Medical Center: $143K across 1 grant, latest 2024American Heart Association Inc → University of Washington: $138K across 3 grants, latest 2023Heart Warrior Foundation → Boston Children Hospital Peggy Fund: $25K across 1 grant, latest 2024Global Heartcare Foundation → Hamidhu Mulyambuzi: $14K across 1 grant, latest 2025Edwards Lifesciences Foundation → Society of Critical Care Medicine: $500K across 2 grants, latest 2023Miami Heart Research Institute Inc → Mt Sinai: $340K across 1 grant, latest 2024The Duke Endowment → Atrium Health Foundation: $250K across 1 grant, latest 2021Zoll Foundation Inc → The General Hospital Corporation: $158K across 3 grants, latest 2024The Chicago Community Trust → French Hospital Medical Center Foundation: $140K across 2 grants, latest 2021The Children's Heart Foundation → American Academy of Pediatrics: $105K across 3 grants, latest 2024American Heart Association Inc → Paducah Board of Education: $40K across 1 grant, latest 2023Heart Warrior Foundation → Boston Children Hospital Marsha Freed Resource Room: $25K across 1 grant, latest 2024Global Heartcare Foundation → Edward Thomas Moruo: $12K across 2 grants, latest 2025Miami Heart Research Institute Inc → Mayo Clinic - Herrmann: $300K across 1 grant, latest 2024Edwards Lifesciences Foundation → Haiti Cardiac Alliance Inc: $260K across 4 grants, latest 2023Miami Heart Research Institute Inc → Georgetown University: $260K across 1 grant, latest 2024The Duke Endowment → Novant Health Presbyterian Medical Center Foundation: $160K across 1 grant, latest 2022Edwards Lifesciences Foundation → American Association of Critical-Care Nurses: $150K across 1 grant, latest 2023Zoll Foundation Inc → University of Pittsburgh: $135K across 3 grants, latest 2023Edwards Lifesciences Foundation → International Cardiac Alliance Inc (Haiti Cardiac Alliance): $130K across 2 grants, latest 2024Miami Heart Research Institute Inc → Mt Sinai Medical Center of Florida Inc: $125K across 1 grant, latest 2023Zoll Foundation Inc → Children's National Hospital: $100K across 1 grant, latest 2023Miami Heart Research Institute Inc → Mayo Clinic Jacksonville: $100K across 1 grant, latest 2023Edwards Lifesciences Foundation → American Association of Critical Care Nurses: $100K across 1 grant, latest 2022Zoll Foundation Inc → Mayo Clinic: $96K across 2 grants, latest 2024Zoll Foundation Inc → Charite - Universitatsmedizin Berlin: $80K across 1 grant, latest 2023Zoll Foundation Inc → Dartmouth-Hitchcock Clinic: $78K across 1 grant, latest 2024Edwards Lifesciences Foundation → Arrhythmia Alliance: $75K across 1 grant, latest 2022Edwards Lifesciences Foundation → Team Heart Inc: $75K across 1 grant, latest 2022Zoll Foundation Inc → Regents of the University of Mi: $74K across 1 grant, latest 2021Zoll Foundation Inc → Rosalind Franklin University of Medicine and Science: $65K across 1 grant, latest 2024Zoll Foundation Inc → Oslo University Hospital: $61K across 1 grant, latest 2023Edwards Lifesciences Foundation → Cardiac Kids Foundation of Florida: $60K across 2 grants, latest 2024Edwards Lifesciences Foundation → Riley Children's Foundation: $50K across 1 grant, latest 2024Zoll Foundation Inc → Stanford University: $50K across 1 grant, latest 2021Zoll Foundation Inc → Virginia Commonwealth University: $50K across 1 grant, latest 2021Zoll Foundation Inc → Kyoto University: $50K across 1 grant, latest 2022Zoll Foundation Inc → Affiliated Hospital of Xuzhou Medical University: $50K across 1 grant, latest 2022Zoll Foundation Inc → Brigham and Women's Hospital: $50K across 1 grant, latest 2021Zoll Foundation Inc → Johns Hopkins University: $50K across 2 grants, latest 2023Zoll Foundation Inc → The Regents of the University of California: $50K across 1 grant, latest 2023Zoll Foundation Inc → Feinstein Institutes for Medical Research: $50K across 1 grant, latest 2024Zoll Foundation Inc → Case Western Reserve University: $50K across 1 grant, latest 2024Zoll Foundation Inc → Trustees of the University of Pennsylvania: $49K across 1 grant, latest 2023Zoll Foundation Inc → University of Utah: $48K across 1 grant, latest 2021Zoll Foundation Inc → University of British Columbia: $46K across 1 grant, latest 2022Edwards Lifesciences Foundation: $2.6M on this topic. Open the funder.Edwards Lifesciences Foundati…$2.6MMiami Heart Research Institute Inc: $2.6M on this topic. Open the funder.Miami Heart Research Institut…$2.6MZoll Foundation Inc: $2.0M on this topic. Open the funder.Zoll Foundation Inc$2.0MThe Chicago Community Trust: $1.5M on this topic. Open the funder.The Chicago Community Trust$1.5MThe Duke Endowment: $1.2M on this topic. Open the funder.The Duke Endowment$1.2MDravet Syndrome Foundation Inc: $1.0M on this topic. Open the funder.Dravet Syndrome Foundation Inc$1.0MThe Children's Heart Foundation: $990K on this topic. Open the funder.The Children's Heart Foundati…$990KAmerican Heart Association Inc: $678K on this topic. Open the funder.American Heart Association Inc$678KHeart Warrior Foundation: $278K on this topic. Open the funder.Heart Warrior Foundation$278KCommunity Foundation of North Texas Inc: $229K on this topic. Open the funder.Community Foundation of North…$229KAndrew David Sit Foundation: $130K on this topic. Open the funder.Andrew David Sit Foundation$130KGlobal Heartcare Foundation: $41K on this topic. Open the funder.Global Heartcare Foundation$41KAnn & Robert H Lurie Childrens Hospital of Chicago Foundation: received $1.2M on this topicAnn & Robert H Lurie Childrens…$1.2MFiu: received $850K on this topicFiu$850KRegents of the University of Michigan: received $779K on this topicRegents of the University of Mi…$779KUniversity of Michigan Heart Center: received $743K on this topicUniversity of Michigan Heart Ce…$743KHeart to Heart Global Cardiac Care: received $700K on this topicHeart to Heart Global Cardiac C…$700KUniversity of Miami: received $650K on this topicUniversity of Miami$650KEmergency USA-Life Support for Civilian Victims of War and Poverty: received $542K on this topicEmergency USA-Life Support for…$542KPresbyterian Hospital Foundation: received $513K on this topicPresbyterian Hospital Foundation$513KEmory University: received $500K on this topicEmory University$500KSociety of Critical Care Medicine: received $500K on this topicSociety of Critical Care Medici…$500KThe Feinstein Institute: received $347K on this topicThe Feinstein Institute$347KMt Sinai: received $340K on this topicMt Sinai$340KWake Forest University Health Sciences: received $321K on this topicWake Forest University Health S…$321KMayo Clinic - Herrmann: received $300K on this topicMayo Clinic - Herrmann$300KHaiti Cardiac Alliance Inc: received $260K on this topicHaiti Cardiac Alliance Inc$260KGeorgetown University: received $260K on this topicGeorgetown University$260KThe Research Foundation for the State University of New York: received $250K on this topicThe Research Foundation for the…$250KAtrium Health Foundation: received $250K on this topicAtrium Health Foundation$250KThe Haiti Cardiac Alliance: received $229K on this topicThe Haiti Cardiac Alliance$229KBoston Childrens Hospital: received $228K on this topicBoston Childrens Hospital$228KAarhus University Hospital: received $208K on this topicAarhus University Hospital$208KHoag Foundation: received $200K on this topicHoag Foundation$200KNovant Health Presbyterian Medical Center Foundation: received $160K on this topicNovant Health Presbyterian Medi…$160KThe General Hospital Corporation: received $158K on this topicThe General Hospital Corporation$158KAmerican Association of Critical-Care Nurses: received $150K on this topicAmerican Association of Critica…$150KCincinnati Children's Hospital Medical Center: received $143K on this topicCincinnati Children's Hospital…$143KFrench Hospital Medical Center Foundation: received $140K on this topicFrench Hospital Medical Center…$140KUniversity of Washington: received $138K on this topicUniversity of Washington$138KUniversity of Pittsburgh: received $135K on this topicUniversity of Pittsburgh$135KLucile Packard Foundation: received $130K on this topicLucile Packard Foundation$130KInternational Cardiac Alliance Inc (Haiti Cardiac Alliance): received $130K on this topicInternational Cardiac Alliance…$130KMt Sinai Medical Center of Florida Inc: received $125K on this topicMt Sinai Medical Center of Flor…$125KAmerican Academy of Pediatrics: received $105K on this topicAmerican Academy of Pediatrics$105KChildren's National Hospital: received $100K on this topicChildren's National Hospital$100KMayo Clinic Jacksonville: received $100K on this topicMayo Clinic Jacksonville$100KAmerican Association of Critical Care Nurses: received $100K on this topicAmerican Association of Critica…$100KMayo Clinic: received $96K on this topicMayo Clinic$96KCharite - Universitatsmedizin Berlin: received $80K on this topicCharite - Universitatsmedizin B…$80KDartmouth-Hitchcock Clinic: received $78K on this topicDartmouth-Hitchcock Clinic$78KArrhythmia Alliance: received $75K on this topicArrhythmia Alliance$75KTeam Heart Inc: received $75K on this topicTeam Heart Inc$75KRegents of the University of Mi: received $74K on this topicRegents of the University of Mi$74KRosalind Franklin University of Medicine and Science: received $65K on this topicRosalind Franklin University of…$65KOslo University Hospital: received $61K on this topicOslo University Hospital$61KCardiac Kids Foundation of Florida: received $60K on this topicCardiac Kids Foundation of Flor…$60KRiley Children's Foundation: received $50K on this topicRiley Children's Foundation$50KStanford University: received $50K on this topicStanford University$50KVirginia Commonwealth University: received $50K on this topicVirginia Commonwealth University$50KKyoto University: received $50K on this topicKyoto University$50KAffiliated Hospital of Xuzhou Medical University: received $50K on this topicAffiliated Hospital of Xuzhou M…$50KBrigham and Women's Hospital: received $50K on this topicBrigham and Women's Hospital$50KJohns Hopkins University: received $50K on this topicJohns Hopkins University$50KThe Regents of the University of California: received $50K on this topicThe Regents of the University o…$50KFeinstein Institutes for Medical Research: received $50K on this topicFeinstein Institutes for Medica…$50KCase Western Reserve University: received $50K on this topicCase Western Reserve University$50KTrustees of the University of Pennsylvania: received $49K on this topicTrustees of the University of P…$49KUniversity of Utah: received $48K on this topicUniversity of Utah$48KUniversity of British Columbia: received $46K on this topicUniversity of British Columbia$46KPaducah Board of Education: received $40K on this topicPaducah Board of Education$40KBoston Children Hospital Peggy Fund: received $25K on this topicBoston Children Hospital Peggy…$25KBoston Children Hospital Marsha Freed Resource Room: received $25K on this topicBoston Children Hospital Marsha…$25KRahwa Mulugeta Seyoum: received $15K on this topicRahwa Mulugeta Seyoum$15KHamidhu Mulyambuzi: received $14K on this topicHamidhu Mulyambuzi$14KEdward Thomas Moruo: received $12K on this topicEdward Thomas Moruo$12K
12 funders, 64 recipients, grants matching “cardiac” 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 →