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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 “orangutan”

Where the money went

1.0×
Arcus Foundation → Paneco Foundation: $1.1M across 2 grants, latest 2024Sam Simon Charitable Giving Foundation Inc → Center for Orangutan & Chimpanzee Conservation Inc: $720K across 3 grants, latest 2024Dr Scholl Foundation → Orangutan Outreach: $320K across 4 grants, latest 2024Park Foundation Inc → Center for Orangutan and Chimpanzee Conservation Inc: $116K across 3 grants, latest 2023David P Tenberg Charitable Foundation → Borneo Orangutan Survival USA: $110K across 5 grants, latest 2025The Andreas Rickenbach Foundation → Orangutan Foundation International: $85K across 4 grants, latest 2025The Maue Kay Foundation → Orangutan Foundation: $80K across 4 grants, latest 2025Tides Foundation → Gunung Palang Orangutan Conservation Program: $60K across 2 grants, latest 2022Bernard and Anne Spitzer → Gunung Palung Orangutan Conservatio: $40K across 2 grants, latest 2024Deupree Family Foundation → Center for Orangutan and Chimpanzee Conservation I: $24K across 5 grants, latest 2024Evim Foundation → Orangutan Foundation: $23K across 4 grants, latest 2025Reid Burns Foundation → Wildlife Conservation International: $7K across 2 grants, latest 2025Arcus Foundation → People Resources and Conservation Foundation: $886K across 5 grants, latest 2024Park Foundation Inc → Cntr for Orangutan and Chimpanzee Conservation Inc: $65K across 1 grant, latest 2024Tides Foundation → Gunung Palung Orangutan Conservation Program Inc: $50K across 1 grant, latest 2023Dr Scholl Foundation → Center for Orangutan and Chimpanzee Conservation Inc: $36K across 3 grants, latest 2024Reid Burns Foundation → Orang Utan Republik Foundation Inc: $5K across 2 grants, latest 2023Arcus Foundation → Center for Orangutan and Chimpanzee Conservation Inc: $800K across 4 grants, latest 2024Tides Foundation → The Orangutan Conservancy: $6K across 1 grant, latest 2024Reid Burns Foundation → Wildlife Conservation Network Inc: $4K across 1 grant, latest 2025Arcus Foundation → Borneo Nature Foundation International: $650K across 4 grants, latest 2024Arcus Foundation → Hutan - Kinabatangan Orang-Utan Conservation Project: $600K across 3 grants, latest 2024Arcus Foundation → Mighty Earth Inc: $600K across 4 grants, latest 2024Arcus Foundation → Gunung Palung Orangutan Conservation Program Inc: $400K across 4 grants, latest 2024Arcus Foundation → Yayasan Inisiasi Alam Rehabilitasi Indonesia: $335K across 2 grants, latest 2024Arcus Foundation → University of Birmingham: $320K across 3 grants, latest 2024Arcus Foundation → Forum Konservasi Orangutan Indonesia (Forina): $230K across 2 grants, latest 2024Arcus Foundation → Rewild: $228K across 2 grants, latest 2022Arcus Foundation → Orangutan Foundation: $200K across 4 grants, latest 2024Arcus Foundation → Health in Harmony Inc: $188K across 2 grants, latest 2024Arcus Foundation → World Wildlife Fund Inc: $102K across 1 grant, latest 2024Arcus Foundation → Land Empowerment Animals People: $100K across 1 grant, latest 2024Arcus Foundation → Yayasan Sangga Bumi Lestari: $86K across 1 grant, latest 2024Arcus Foundation → Yayasan Orangutan Sumatera Lestari: $78K across 5 grants, latest 2024Arcus Foundation → The Orangutan Conservancy: $60K across 2 grants, latest 2024Arcus Foundation → Yayasan Satya Bumi Lestari: $25K across 1 grant, latest 2023Arcus Foundation → Stichting Wanicare: $20K across 2 grants, latest 2022Arcus Foundation → Orangutan Veterinary Aid (Ovaid): $20K across 1 grant, latest 2024Arcus Foundation: $7.0M on this topic. Open the funder.Arcus Foundation$7.0MSam Simon Charitable Giving Foundation Inc: $720K on this topic. Open the funder.Sam Simon Charitable Giving F…$720KDr Scholl Foundation: $356K on this topic. Open the funder.Dr Scholl Foundation$356KPark Foundation Inc: $180K on this topic. Open the funder.Park Foundation Inc$180KTides Foundation: $116K on this topic. Open the funder.Tides Foundation$116KDavid P Tenberg Charitable Foundation: $110K on this topic. Open the funder.David P Tenberg Charitable Fo…$110KThe Andreas Rickenbach Foundation: $85K on this topic. Open the funder.The Andreas Rickenbach Founda…$85KThe Maue Kay Foundation: $80K on this topic. Open the funder.The Maue Kay Foundation$80KBernard and Anne Spitzer: $40K on this topic. Open the funder.Bernard and Anne Spitzer$40KDeupree Family Foundation: $24K on this topic. Open the funder.Deupree Family Foundation$24KEvim Foundation: $23K on this topic. Open the funder.Evim Foundation$23KReid Burns Foundation: $16K on this topic. Open the funder.Reid Burns Foundation$16KPaneco Foundation: received $1.1M on this topicPaneco Foundation$1.1MCenter for Orangutan and Chimpanzee Conservation Inc: received $916K on this topicCenter for Orangutan and Chimpa…$916KPeople Resources and Conservation Foundation: received $886K on this topicPeople Resources and Conservati…$886KCenter for Orangutan & Chimpanzee Conservation Inc: received $720K on this topicCenter for Orangutan & Chimpanz…$720KBorneo Nature Foundation International: received $650K on this topicBorneo Nature Foundation Intern…$650KHutan - Kinabatangan Orang-Utan Conservation Project: received $600K on this topicHutan - Kinabatangan Orang-Utan…$600KMighty Earth Inc: received $600K on this topicMighty Earth Inc$600KGunung Palung Orangutan Conservation Program Inc: received $450K on this topicGunung Palung Orangutan Conserv…$450KYayasan Inisiasi Alam Rehabilitasi Indonesia: received $335K on this topicYayasan Inisiasi Alam Rehabilit…$335KOrangutan Outreach: received $320K on this topicOrangutan Outreach$320KUniversity of Birmingham: received $320K on this topicUniversity of Birmingham$320KOrangutan Foundation: received $303K on this topicOrangutan Foundation$303KForum Konservasi Orangutan Indonesia (Forina): received $230K on this topicForum Konservasi Orangutan Indo…$230KRewild: received $228K on this topicRewild$228KHealth in Harmony Inc: received $188K on this topicHealth in Harmony Inc$188KBorneo Orangutan Survival USA: received $110K on this topicBorneo Orangutan Survival USA$110KWorld Wildlife Fund Inc: received $102K on this topicWorld Wildlife Fund Inc$102KLand Empowerment Animals People: received $100K on this topicLand Empowerment Animals People$100KYayasan Sangga Bumi Lestari: received $86K on this topicYayasan Sangga Bumi Lestari$86KOrangutan Foundation International: received $85K on this topicOrangutan Foundation Internatio…$85KYayasan Orangutan Sumatera Lestari: received $78K on this topicYayasan Orangutan Sumatera Lest…$78KThe Orangutan Conservancy: received $66K on this topicThe Orangutan Conservancy$66KCntr for Orangutan and Chimpanzee Conservation Inc: received $65K on this topicCntr for Orangutan and Chimpanz…$65KGunung Palang Orangutan Conservation Program: received $60K on this topicGunung Palang Orangutan Conserv…$60KGunung Palung Orangutan Conservatio: received $40K on this topicGunung Palung Orangutan Conserv…$40KCenter for Orangutan and Chimpanzee Conservation Inc: received $36K on this topicCenter for Orangutan and Chimpa…$36KYayasan Satya Bumi Lestari: received $25K on this topicYayasan Satya Bumi Lestari$25KCenter for Orangutan and Chimpanzee Conservation I: received $24K on this topicCenter for Orangutan and Chimpa…$24KStichting Wanicare: received $20K on this topicStichting Wanicare$20KOrangutan Veterinary Aid (Ovaid): received $20K on this topicOrangutan Veterinary Aid (Ovaid)$20KWildlife Conservation International: received $7K on this topicWildlife Conservation Internati…$7KOrang Utan Republik Foundation Inc: received $5K on this topicOrang Utan Republik Foundation…$5KWildlife Conservation Network Inc: received $4K on this topicWildlife Conservation Network I…$4K
12 funders, 33 recipients, grants matching “orangutan” 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 2019–2025. 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 →