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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 “biodiversity”

Where the money went

1.0×
Gordon E and Betty I Moore Foundation → Wildlife Conservation Society: $5.2M across 2 grants, latest 2020Conservation International Foundation → Wildlife Conservation Society: $1.4M across 2 grants, latest 2022Walder Foundation → Lincoln Park Zoological Society: $1.2M across 5 grants, latest 2024National Council for Air and Stream → Oregon State University: $717K across 4 grants, latest 2024Arcus Foundation → International Rivers Network: $600K across 4 grants, latest 2024Doris Duke Charitable Foundation Inc → Consultative Group On Biological Diversity (Dba Biodiversity Funders Group): $567K across 4 grants, latest 2024Avangrid Foundation Inc → National Fish and Wildlife Foundation: $500K across 2 grants, latest 2023The Ford Foundation → New York Botanical Garden: $450K across 3 grants, latest 2024Jrs Biodiversity Foundation → Lake Tanganyika Floating Health Clinic: $315K across 3 grants, latest 2024Sustainable Forestry Initiative Inc → Ncasi Foundation: $260K across 3 grants, latest 2024Milkweed Foundation Inc → Climate Cabinet Education: $200K across 1 grant, latest 2024New England Biolabs Foundation → Fauna & Flora International USA: $25K across 1 grant, latest 2023Gordon E and Betty I Moore Foundation → World Wildlife Fund Inc: $3.9M across 1 grant, latest 2023Conservation International Foundation → International Union for Conservation of Nature and Natural Resources: $1.1M across 2 grants, latest 2022Walder Foundation → University of Guelph: $1.0M across 3 grants, latest 2024Arcus Foundation → Friends of the Earth: $450K across 3 grants, latest 2023Doris Duke Charitable Foundation Inc → The Nature Conservancy: $380K across 1 grant, latest 2024Avangrid Foundation Inc → Trust for Public Land: $275K across 4 grants, latest 2025Jrs Biodiversity Foundation → Water Journalists Africa - Infonile: $274K across 3 grants, latest 2024National Council for Air and Stream → Uga Research Foundation Inc: $258K across 3 grants, latest 2024The Ford Foundation → Friends of the Earth: $200K across 2 grants, latest 2024Milkweed Foundation Inc → Spring Street Climate Fund: $200K across 1 grant, latest 2024Sustainable Forestry Initiative Inc → West Virginia Division of Natural Resources: $107K across 2 grants, latest 2023New England Biolabs Foundation → Fauna & Flora International: $20K across 1 grant, latest 2024Gordon E and Betty I Moore Foundation → World Economic Forum: $3.4M across 1 grant, latest 2023Walder Foundation → Field Museum of Natural History: $995K across 3 grants, latest 2024Arcus Foundation → International Institute for Environment and Development: $450K across 4 grants, latest 2022Doris Duke Charitable Foundation Inc → Southern Environmental Law Center: $345K across 3 grants, latest 2023Jrs Biodiversity Foundation → Tanzania Forest Conservation Group: $219K across 3 grants, latest 2024Avangrid Foundation Inc → Gulf of Maine Research Institute: $200K across 4 grants, latest 2025Conservation International Foundation → Missouri Botanical Garden: $180K across 1 grant, latest 2021National Council for Air and Stream → Bill - Ugs Research Foundation Inc: $155K across 1 grant, latest 2024The Ford Foundation → Geoindigena: $150K across 3 grants, latest 2024Milkweed Foundation Inc → Island Conservation: $150K across 1 grant, latest 2024Sustainable Forestry Initiative Inc → Natureserve: $86K across 2 grants, latest 2023New England Biolabs Foundation → Fundacion Selva Sagrada: $15K across 2 grants, latest 2024Gordon E and Betty I Moore Foundation → Regents of the University of California: $3.3M across 4 grants, latest 2024Gordon E and Betty I Moore Foundation → New Venture Fund: $2.9M across 1 grant, latest 2023Gordon E and Betty I Moore Foundation → California Academy of Sciences: $2.6M across 3 grants, latest 2024Gordon E and Betty I Moore Foundation → Association of Science-Technology Centers Incorporated: $2.1M across 1 grant, latest 2024Gordon E and Betty I Moore Foundation → Wcmc: $2.0M across 1 grant, latest 2023Gordon E and Betty I Moore Foundation → Green Finance Institute: $1.5M across 1 grant, latest 2024Gordon E and Betty I Moore Foundation → Sociedad Zoologica De Frankfurt: $1.4M across 2 grants, latest 2024Gordon E and Betty I Moore Foundation → Yellowstone to Yukon Conservation Initiative: $1.3M across 1 grant, latest 2023Gordon E and Betty I Moore Foundation → Foundation for the Conservation and Sustainable Development Peru: $1.2M across 2 grants, latest 2024Gordon E and Betty I Moore Foundation → New Venture Fund: $1.0M across 1 grant, latest 2020Gordon E and Betty I Moore Foundation → San Diego Society of Natural History Balboa Park: $793K across 1 grant, latest 2023Gordon E and Betty I Moore Foundation → California Academy of Sciences: $738K across 1 grant, latest 2020Walder Foundation → Shedd Aquarium Society: $637K across 2 grants, latest 2024Gordon E and Betty I Moore Foundation → Conservation X Labs Inc: $500K across 1 grant, latest 2024Gordon E and Betty I Moore Foundation → Amazon Biodiversity Center: $401K across 2 grants, latest 2022Arcus Foundation → Global Greengrants Fund Inc: $300K across 3 grants, latest 2024Walder Foundation → Morton Arboretum: $300K across 3 grants, latest 2024Walder Foundation → Depaul University: $300K across 3 grants, latest 2024Arcus Foundation → American Museum of Natural History: $299K across 3 grants, latest 2023Gordon E and Betty I Moore Foundation → Smithsonian Institution: $253K across 1 grant, latest 2020Gordon E and Betty I Moore Foundation → Rainforest Expeditions: $250K across 1 grant, latest 2020Jrs Biodiversity Foundation → University of Florida: $216K across 2 grants, latest 2024Jrs Biodiversity Foundation → Freshwater Research Centre: $212K across 4 grants, latest 2024Walder Foundation → Openlands: $200K across 1 grant, latest 2022Walder Foundation → Chicago Horticultural Society: $200K across 2 grants, latest 2024Walder Foundation → Loyola University of Chicago: $200K across 2 grants, latest 2024Gordon E and Betty I Moore Foundation → Consultative Group On Biological Diversity: $195K across 3 grants, latest 2024Gordon E and Betty I Moore Foundation → Field Museum of Natural History: $193K across 1 grant, latest 2020Gordon E and Betty I Moore Foundation: $35M on this topic. Open the funder.Gordon E and Betty I Moore Fo…$35MWalder Foundation: $5.0M on this topic. Open the funder.Walder Foundation$5.0MConservation International Foundation: $2.6M on this topic. Open the funder.Conservation International Fo…$2.6MArcus Foundation: $2.1M on this topic. Open the funder.Arcus Foundation$2.1MDoris Duke Charitable Foundation Inc: $1.3M on this topic. Open the funder.Doris Duke Charitable Foundat…$1.3MJrs Biodiversity Foundation: $1.2M on this topic. Open the funder.Jrs Biodiversity Foundation$1.2MNational Council for Air and Stream: $1.1M on this topic. Open the funder.National Council for Air and…$1.1MAvangrid Foundation Inc: $975K on this topic. Open the funder.Avangrid Foundation Inc$975KThe Ford Foundation: $800K on this topic. Open the funder.The Ford Foundation$800KMilkweed Foundation Inc: $550K on this topic. Open the funder.Milkweed Foundation Inc$550KSustainable Forestry Initiative Inc: $453K on this topic. Open the funder.Sustainable Forestry Initiati…$453KNew England Biolabs Foundation: $60K on this topic. Open the funder.New England Biolabs Foundation$60KWildlife Conservation Society: received $5.2M on this topicWildlife Conservation Society$5.2MWorld Wildlife Fund Inc: received $3.9M on this topicWorld Wildlife Fund Inc$3.9MWorld Economic Forum: received $3.4M on this topicWorld Economic Forum$3.4MRegents of the University of California: received $3.3M on this topicRegents of the University of Ca…$3.3MNew Venture Fund: received $2.9M on this topicNew Venture Fund$2.9MCalifornia Academy of Sciences: received $2.6M on this topicCalifornia Academy of Sciences$2.6MAssociation of Science-Technology Centers Incorporated: received $2.1M on this topicAssociation of Science-Technolo…$2.1MWcmc: received $2.0M on this topicWcmc$2.0MGreen Finance Institute: received $1.5M on this topicGreen Finance Institute$1.5MWildlife Conservation Society: received $1.4M on this topicWildlife Conservation Society$1.4MSociedad Zoologica De Frankfurt: received $1.4M on this topicSociedad Zoologica De Frankfurt$1.4MYellowstone to Yukon Conservation Initiative: received $1.3M on this topicYellowstone to Yukon Conservati…$1.3MFoundation for the Conservation and Sustainable Development Peru: received $1.2M on this topicFoundation for the Conservation…$1.2MLincoln Park Zoological Society: received $1.2M on this topicLincoln Park Zoological Society$1.2MInternational Union for Conservation of Nature and Natural Resources: received $1.1M on this topicInternational Union for Conserv…$1.1MUniversity of Guelph: received $1.0M on this topicUniversity of Guelph$1.0MNew Venture Fund: received $1.0M on this topicNew Venture Fund$1.0MField Museum of Natural History: received $995K on this topicField Museum of Natural History$995KSan Diego Society of Natural History Balboa Park: received $793K on this topicSan Diego Society of Natural Hi…$793KCalifornia Academy of Sciences: received $738K on this topicCalifornia Academy of Sciences$738KOregon State University: received $717K on this topicOregon State University$717KFriends of the Earth: received $650K on this topicFriends of the Earth$650KShedd Aquarium Society: received $637K on this topicShedd Aquarium Society$637KInternational Rivers Network: received $600K on this topicInternational Rivers Network$600KConsultative Group On Biological Diversity (Dba Biodiversity Funders Group): received $567K on this topicConsultative Group On Biologica…$567KNational Fish and Wildlife Foundation: received $500K on this topicNational Fish and Wildlife Foun…$500KConservation X Labs Inc: received $500K on this topicConservation X Labs Inc$500KNew York Botanical Garden: received $450K on this topicNew York Botanical Garden$450KInternational Institute for Environment and Development: received $450K on this topicInternational Institute for Env…$450KAmazon Biodiversity Center: received $401K on this topicAmazon Biodiversity Center$401KThe Nature Conservancy: received $380K on this topicThe Nature Conservancy$380KSouthern Environmental Law Center: received $345K on this topicSouthern Environmental Law Cent…$345KLake Tanganyika Floating Health Clinic: received $315K on this topicLake Tanganyika Floating Health…$315KGlobal Greengrants Fund Inc: received $300K on this topicGlobal Greengrants Fund Inc$300KMorton Arboretum: received $300K on this topicMorton Arboretum$300KDepaul University: received $300K on this topicDepaul University$300KAmerican Museum of Natural History: received $299K on this topicAmerican Museum of Natural Hist…$299KTrust for Public Land: received $275K on this topicTrust for Public Land$275KWater Journalists Africa - Infonile: received $274K on this topicWater Journalists Africa - Info…$274KNcasi Foundation: received $260K on this topicNcasi Foundation$260KUga Research Foundation Inc: received $258K on this topicUga Research Foundation Inc$258KSmithsonian Institution: received $253K on this topicSmithsonian Institution$253KRainforest Expeditions: received $250K on this topicRainforest Expeditions$250KTanzania Forest Conservation Group: received $219K on this topicTanzania Forest Conservation Gr…$219KUniversity of Florida: received $216K on this topicUniversity of Florida$216KFreshwater Research Centre: received $212K on this topicFreshwater Research Centre$212KClimate Cabinet Education: received $200K on this topicClimate Cabinet Education$200KSpring Street Climate Fund: received $200K on this topicSpring Street Climate Fund$200KGulf of Maine Research Institute: received $200K on this topicGulf of Maine Research Institute$200KOpenlands: received $200K on this topicOpenlands$200KChicago Horticultural Society: received $200K on this topicChicago Horticultural Society$200KLoyola University of Chicago: received $200K on this topicLoyola University of Chicago$200KConsultative Group On Biological Diversity: received $195K on this topicConsultative Group On Biologica…$195KField Museum of Natural History: received $193K on this topicField Museum of Natural History$193KMissouri Botanical Garden: received $180K on this topicMissouri Botanical Garden$180KBill - Ugs Research Foundation Inc: received $155K on this topicBill - Ugs Research Foundation…$155KGeoindigena: received $150K on this topicGeoindigena$150KIsland Conservation: received $150K on this topicIsland Conservation$150KWest Virginia Division of Natural Resources: received $107K on this topicWest Virginia Division of Natur…$107KNatureserve: received $86K on this topicNatureserve$86KFauna & Flora International USA: received $25K on this topicFauna & Flora International USA$25KFauna & Flora International: received $20K on this topicFauna & Flora International$20KFundacion Selva Sagrada: received $15K on this topicFundacion Selva Sagrada$15K
12 funders, 63 recipients, grants matching “biodiversity” 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 →