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Find who already funds work like yours.

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 “trees”

Where the money went

1.0×
American Forests → Greening of Detroit: $2.0M across 3 grants, latest 2024National Arbor Day Foundation → Arbor Day Impact Fund: $1.7M across 1 grant, latest 2024The Administrators of the Tulane Educational Fund → The Family Tree: $1.3M across 50 grants, latest 2024Plant-for-the-Planet Us → Perry Institute: $1.2M across 1 grant, latest 2023Alliant Energy Foundation Inc → Iowa Department of Natural Resources: $875K across 4 grants, latest 2025Walton Family Foundation Inc → City of Lowell: $602K across 2 grants, latest 2023National Fish and Wildlife Foundation → Friends of Grand Rapids Parks: $438K across 2 grants, latest 2023American Forest Foundation → Alabama Tree Farm Committee: $127K across 3 grants, latest 2024Apache Foundation → Treefolks Inc: $47K across 2 grants, latest 2022Enterprise Holdings Foundation → The Shade Tree Incorporated: $15K across 4 grants, latest 2023Chapman Forestry Foundation → Calpoly Pomona Philantropic Founda: $10K across 1 grant, latest 2022Rae of Hope Foundation → Katherine Aguilar: $4K across 2 grants, latest 2025American Forests → Us Forest Service: $761K across 1 grant, latest 2021National Arbor Day Foundation → Trees Atlanta: $734K across 3 grants, latest 2024Plant-for-the-Planet Us → World Wildlife Fund: $573K across 1 grant, latest 2023Walton Family Foundation Inc → Crystal Bridges Museum of American Art Inc: $544K across 1 grant, latest 2023National Fish and Wildlife Foundation → The Greening of Detroit: $424K across 1 grant, latest 2023Alliant Energy Foundation Inc → Trees Forever Inc: $364K across 6 grants, latest 2025American Forest Foundation → South Carolina Tree Farm Committee: $49K across 2 grants, latest 2023Apache Foundation → Harris County Precinct 3: $42K across 3 grants, latest 2024Enterprise Holdings Foundation → Trees for Houston: $12K across 4 grants, latest 2023Chapman Forestry Foundation → City of Canyon: $8K across 3 grants, latest 2024Rae of Hope Foundation → Aaron Bueltmann: $3K across 1 grant, latest 2024National Arbor Day Foundation → Texas Trees Foundation: $539K across 3 grants, latest 2024Walton Family Foundation Inc → Bentonville Parks Conservancy: $502K across 2 grants, latest 2023National Fish and Wildlife Foundation → Greater Grace World Outreach Inc: $414K across 1 grant, latest 2023Plant-for-the-Planet Us → Global Forest Generation: $383K across 1 grant, latest 2022American Forests → The University of Tennessee: $309K across 3 grants, latest 2024Alliant Energy Foundation Inc → Wisconsin Department of Natural Resources: $140K across 2 grants, latest 2023American Forest Foundation → Michigan Tree Farm Committee: $45K across 3 grants, latest 2024Apache Foundation → Nola Tree Project: $31K across 3 grants, latest 2024Enterprise Holdings Foundation → Sacramento Tree Foundation: $11K across 3 grants, latest 2023Chapman Forestry Foundation → Lubbock Memorial Aboretum: $5K across 2 grants, latest 2023Rae of Hope Foundation → Cristhian Serrano Carias: $3K across 1 grant, latest 2024National Arbor Day Foundation → Casey Trees: $482K across 3 grants, latest 2024National Fish and Wildlife Foundation → First American Title Company: $363K across 1 grant, latest 2022Walton Family Foundation Inc → City of Gentry: $347K across 2 grants, latest 2023National Arbor Day Foundation → Trees for Houston: $337K across 3 grants, latest 2024National Fish and Wildlife Foundation → Houston Wilderness: $317K across 1 grant, latest 2023Walton Family Foundation Inc → City of Rogers: $315K across 2 grants, latest 2023Walton Family Foundation Inc → Arkansas Baptist Assembly Inc Dba Camp Siloam: $305K across 1 grant, latest 2022Plant-for-the-Planet Us → Osa Conservation: $302K across 1 grant, latest 2023National Arbor Day Foundation → Baltimore Tree Trust Inc: $293K across 3 grants, latest 2024Walton Family Foundation Inc → The Peel Compton Foundation: $278K across 2 grants, latest 2023Plant-for-the-Planet Us → Global Forest Generation: $278K across 2 grants, latest 2023National Arbor Day Foundation → Tree San Diego: $274K across 3 grants, latest 2024National Arbor Day Foundation → Trees Greenville Inc: $271K across 3 grants, latest 2024Walton Family Foundation Inc → Bella Vista Foundation: $265K across 2 grants, latest 2023National Fish and Wildlife Foundation → The Morton Arboretum: $265K across 2 grants, latest 2023American Forests → Speak for the Trees Boston: $245K across 4 grants, latest 2024National Arbor Day Foundation → Fruit Tree Planting Foundation: $236K across 4 grants, latest 2024National Arbor Day Foundation → North East Trees Inc: $234K across 2 grants, latest 2023Walton Family Foundation Inc → Northwest Arkansas Community College Foundation Inc: $234K across 2 grants, latest 2023American Forests → Arizona Sustainability Alliance: $232K across 3 grants, latest 2024American Forests → Texas Trees Foundation: $229K across 3 grants, latest 2023National Arbor Day Foundation → Nola Tree Project: $214K across 3 grants, latest 2024National Arbor Day Foundation → Friends of Trees: $214K across 3 grants, latest 2024Walton Family Foundation Inc → City of Centerton: $212K across 1 grant, latest 2023American Forests → City of Phoenix: $205K across 1 grant, latest 2021American Forests → Bexar Branches Alliance Corp: $205K across 4 grants, latest 2024American Forests → Natural Areas Conservancy: $196K across 3 grants, latest 2024National Arbor Day Foundation → Trees Matter: $196K across 3 grants, latest 2024National Fish and Wildlife Foundation → Howard County Maryland: $159K across 1 grant, latest 2021American Forests → Trees for Houston: $156K across 3 grants, latest 2024National Arbor Day Foundation: $5.7M on this topic. Open the funder.National Arbor Day Foundation$5.7MAmerican Forests: $4.6M on this topic. Open the funder.American Forests$4.6MWalton Family Foundation Inc: $3.6M on this topic. Open the funder.Walton Family Foundation Inc$3.6MPlant-for-the-Planet Us: $2.7M on this topic. Open the funder.Plant-for-the-Planet Us$2.7MNational Fish and Wildlife Foundation: $2.4M on this topic. Open the funder.National Fish and Wildlife Fo…$2.4MAlliant Energy Foundation Inc: $1.4M on this topic. Open the funder.Alliant Energy Foundation Inc$1.4MThe Administrators of the Tulane Educational Fund: $1.3M on this topic. Open the funder.The Administrators of the Tul…$1.3MAmerican Forest Foundation: $221K on this topic. Open the funder.American Forest Foundation$221KApache Foundation: $120K on this topic. Open the funder.Apache Foundation$120KEnterprise Holdings Foundation: $38K on this topic. Open the funder.Enterprise Holdings Foundation$38KChapman Forestry Foundation: $23K on this topic. Open the funder.Chapman Forestry Foundation$23KRae of Hope Foundation: $10K on this topic. Open the funder.Rae of Hope Foundation$10KGreening of Detroit: received $2.0M on this topicGreening of Detroit$2.0MArbor Day Impact Fund: received $1.7M on this topicArbor Day Impact Fund$1.7MThe Family Tree: received $1.3M on this topicThe Family Tree$1.3MPerry Institute: received $1.2M on this topicPerry Institute$1.2MIowa Department of Natural Resources: received $875K on this topicIowa Department of Natural Reso…$875KUs Forest Service: received $761K on this topicUs Forest Service$761KTrees Atlanta: received $734K on this topicTrees Atlanta$734KCity of Lowell: received $602K on this topicCity of Lowell$602KWorld Wildlife Fund: received $573K on this topicWorld Wildlife Fund$573KCrystal Bridges Museum of American Art Inc: received $544K on this topicCrystal Bridges Museum of Ameri…$544KTexas Trees Foundation: received $539K on this topicTexas Trees Foundation$539KBentonville Parks Conservancy: received $502K on this topicBentonville Parks Conservancy$502KCasey Trees: received $482K on this topicCasey Trees$482KFriends of Grand Rapids Parks: received $438K on this topicFriends of Grand Rapids Parks$438KThe Greening of Detroit: received $424K on this topicThe Greening of Detroit$424KGreater Grace World Outreach Inc: received $414K on this topicGreater Grace World Outreach Inc$414KGlobal Forest Generation: received $383K on this topicGlobal Forest Generation$383KTrees Forever Inc: received $364K on this topicTrees Forever Inc$364KFirst American Title Company: received $363K on this topicFirst American Title Company$363KTrees for Houston: received $349K on this topicTrees for Houston$349KCity of Gentry: received $347K on this topicCity of Gentry$347KHouston Wilderness: received $317K on this topicHouston Wilderness$317KCity of Rogers: received $315K on this topicCity of Rogers$315KThe University of Tennessee: received $309K on this topicThe University of Tennessee$309KArkansas Baptist Assembly Inc Dba Camp Siloam: received $305K on this topicArkansas Baptist Assembly Inc D…$305KOsa Conservation: received $302K on this topicOsa Conservation$302KBaltimore Tree Trust Inc: received $293K on this topicBaltimore Tree Trust Inc$293KThe Peel Compton Foundation: received $278K on this topicThe Peel Compton Foundation$278KGlobal Forest Generation: received $278K on this topicGlobal Forest Generation$278KTree San Diego: received $274K on this topicTree San Diego$274KTrees Greenville Inc: received $271K on this topicTrees Greenville Inc$271KBella Vista Foundation: received $265K on this topicBella Vista Foundation$265KThe Morton Arboretum: received $265K on this topicThe Morton Arboretum$265KSpeak for the Trees Boston: received $245K on this topicSpeak for the Trees Boston$245KFruit Tree Planting Foundation: received $236K on this topicFruit Tree Planting Foundation$236KNorth East Trees Inc: received $234K on this topicNorth East Trees Inc$234KNorthwest Arkansas Community College Foundation Inc: received $234K on this topicNorthwest Arkansas Community Co…$234KArizona Sustainability Alliance: received $232K on this topicArizona Sustainability Alliance$232KTexas Trees Foundation: received $229K on this topicTexas Trees Foundation$229KNola Tree Project: received $214K on this topicNola Tree Project$214KFriends of Trees: received $214K on this topicFriends of Trees$214KCity of Centerton: received $212K on this topicCity of Centerton$212KCity of Phoenix: received $205K on this topicCity of Phoenix$205KBexar Branches Alliance Corp: received $205K on this topicBexar Branches Alliance Corp$205KNatural Areas Conservancy: received $196K on this topicNatural Areas Conservancy$196KTrees Matter: received $196K on this topicTrees Matter$196KHoward County Maryland: received $159K on this topicHoward County Maryland$159KTrees for Houston: received $156K on this topicTrees for Houston$156KWisconsin Department of Natural Resources: received $140K on this topicWisconsin Department of Natural…$140KAlabama Tree Farm Committee: received $127K on this topicAlabama Tree Farm Committee$127KSouth Carolina Tree Farm Committee: received $49K on this topicSouth Carolina Tree Farm Commit…$49KTreefolks Inc: received $47K on this topicTreefolks Inc$47KMichigan Tree Farm Committee: received $45K on this topicMichigan Tree Farm Committee$45KHarris County Precinct 3: received $42K on this topicHarris County Precinct 3$42KNola Tree Project: received $31K on this topicNola Tree Project$31KThe Shade Tree Incorporated: received $15K on this topicThe Shade Tree Incorporated$15KSacramento Tree Foundation: received $11K on this topicSacramento Tree Foundation$11KCalpoly Pomona Philantropic Founda: received $10K on this topicCalpoly Pomona Philantropic Fou…$10KCity of Canyon: received $8K on this topicCity of Canyon$8KLubbock Memorial Aboretum: received $5K on this topicLubbock Memorial Aboretum$5KKatherine Aguilar: received $4K on this topicKatherine Aguilar$4KAaron Bueltmann: received $3K on this topicAaron Bueltmann$3KCristhian Serrano Carias: received $3K on this topicCristhian Serrano Carias$3K
12 funders, 63 recipients, grants matching “trees” 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 →