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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 “rhino”

Where the money went

1.0×
The Wildcat Foundation → Save the Rhino International Inc: $2.4M across 3 grants, latest 2024Gs Donor Advised Philanthropy Fund → Operation Rhino: $1.9M across 1 grant, latest 2024The Woodtiger Fund → Save the Rhino International: $247K across 3 grants, latest 2024Scott and Jessica Mcclintock Foundation → Save the Rhino International Inc: $167K across 7 grants, latest 2024Conservation Nation → Save the Rhino International Inc: $150K across 3 grants, latest 2025Jacksonville Zoological Society Inc → International Rhino Foundation: $132K across 3 grants, latest 2023Zoological Society of Cincinnati → International Rhino Foundation: $91K across 3 grants, latest 2024The Favrot Fund → Longneck Manor Conservation Foundation (Rf): $55K across 2 grants, latest 2023The International Rhino Foundation → Wildlife Conservation Network: $45K across 1 grant, latest 2024Utah Zoological Society → International Rhino Foundation: $35K across 2 grants, latest 2023Wags and Menace Make A Difference Foundation → Baby Rhino Rescue: $15K across 11 grants, latest 2025Reid Burns Foundation → Save the Rhino International Inc: $12K across 4 grants, latest 2025The Wildcat Foundation → Frankfurt Zoological Society - Us: $1.4M across 2 grants, latest 2024The Woodtiger Fund → International Rhino Foundation: $157K across 3 grants, latest 2024The Favrot Fund → Longneck Manor Conservation Foundation: $50K across 2 grants, latest 2025Conservation Nation → Wildlifedirect Inc: $30K across 1 grant, latest 2024The International Rhino Foundation → Minnesota Zoo Foundation: $25K across 1 grant, latest 2023Gs Donor Advised Philanthropy Fund → The International Rhino Foundation: $25K across 1 grant, latest 2023Utah Zoological Society → International Rhino Foundation: $20K across 1 grant, latest 2024Reid Burns Foundation → Wildlife Conservation Network Inc: $3K across 1 grant, latest 2023The Wildcat Foundation → Env Wildfire Conservation Trust: $221K across 2 grants, latest 2024The Woodtiger Fund → Frankfurt Zoological Society Us Inc: $75K across 1 grant, latest 2022The International Rhino Foundation → Working Dogs for Conservation: $19K across 1 grant, latest 2024Gs Donor Advised Philanthropy Fund → Rhino 911: $13K across 1 grant, latest 2024Reid Burns Foundation → Baby Rhino Rescue: $1K across 1 grant, latest 2025The Wildcat Foundation → Env Wildlife Conservation Trust: $108K across 1 grant, latest 2022The International Rhino Foundation → Frankfurt Zoological Society - Us: $17K across 1 grant, latest 2022Gs Donor Advised Philanthropy Fund → Endangered Rhino Conservation: $13K across 1 grant, latest 2022The International Rhino Foundation → Conservation Centers for Species Survival: $8K across 1 grant, latest 2022The Wildcat Foundation: $4.1M on this topic. Open the funder.The Wildcat Foundation$4.1MGs Donor Advised Philanthropy Fund: $1.9M on this topic. Open the funder.Gs Donor Advised Philanthropy…$1.9MThe Woodtiger Fund: $479K on this topic. Open the funder.The Woodtiger Fund$479KConservation Nation: $180K on this topic. Open the funder.Conservation Nation$180KScott and Jessica Mcclintock Foundation: $167K on this topic. Open the funder.Scott and Jessica Mcclintock…$167KJacksonville Zoological Society Inc: $132K on this topic. Open the funder.Jacksonville Zoological Socie…$132KThe International Rhino Foundation: $114K on this topic. Open the funder.The International Rhino Found…$114KThe Favrot Fund: $105K on this topic. Open the funder.The Favrot Fund$105KZoological Society of Cincinnati: $91K on this topic. Open the funder.Zoological Society of Cincinn…$91KUtah Zoological Society: $55K on this topic. Open the funder.Utah Zoological Society$55KReid Burns Foundation: $16K on this topic. Open the funder.Reid Burns Foundation$16KWags and Menace Make A Difference Foundation: $15K on this topic. Open the funder.Wags and Menace Make A Differ…$15KSave the Rhino International Inc: received $2.6M on this topicSave the Rhino International Inc$2.6MOperation Rhino: received $1.9M on this topicOperation Rhino$1.9MFrankfurt Zoological Society - Us: received $1.4M on this topicFrankfurt Zoological Society -…$1.4MInternational Rhino Foundation: received $415K on this topicInternational Rhino Foundation$415KSave the Rhino International: received $247K on this topicSave the Rhino International$247KEnv Wildfire Conservation Trust: received $221K on this topicEnv Wildfire Conservation Trust$221KSave the Rhino International Inc: received $150K on this topicSave the Rhino International Inc$150KEnv Wildlife Conservation Trust: received $108K on this topicEnv Wildlife Conservation Trust$108KFrankfurt Zoological Society Us Inc: received $75K on this topicFrankfurt Zoological Society Us…$75KLongneck Manor Conservation Foundation (Rf): received $55K on this topicLongneck Manor Conservation Fou…$55KLongneck Manor Conservation Foundation: received $50K on this topicLongneck Manor Conservation Fou…$50KWildlife Conservation Network: received $45K on this topicWildlife Conservation Network$45KWildlifedirect Inc: received $30K on this topicWildlifedirect Inc$30KMinnesota Zoo Foundation: received $25K on this topicMinnesota Zoo Foundation$25KThe International Rhino Foundation: received $25K on this topicThe International Rhino Foundat…$25KInternational Rhino Foundation: received $20K on this topicInternational Rhino Foundation$20KWorking Dogs for Conservation: received $19K on this topicWorking Dogs for Conservation$19KBaby Rhino Rescue: received $16K on this topicBaby Rhino Rescue$16KRhino 911: received $13K on this topicRhino 911$13KEndangered Rhino Conservation: received $13K on this topicEndangered Rhino Conservation$13KConservation Centers for Species Survival: received $8K on this topicConservation Centers for Specie…$8KWildlife Conservation Network Inc: received $3K on this topicWildlife Conservation Network I…$3K
12 funders, 22 recipients, grants matching “rhino” 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 →