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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 “arbor”

Where the money went

1.0×
Vaughan Foundation → Ann Arbor Area Community Fdn: $70M across 1 grant, latest 2025Enterprise Holdings Foundation → National Arbor Day Foundation: $6.8M across 5 grants, latest 2023The Goldman Sachs Charitable Gift Fund → Arbor Brothers Inc: $1.0M across 7 grants, latest 2024Seattle Foundation → Arbor Day Foundation: $730K across 2 grants, latest 2024Duffy Foundation → Ann Arbor Area Community Foundation: $560K across 3 grants, latest 2024Ann Arbor Area Community Foundation → Ann Arbor Art Association Dba Ann Arbor Art Center: $397K across 3 grants, latest 2024Kla Foundation → Science Is Elementary: $225K across 2 grants, latest 2025Harry A and Margaret D Towsley → Ann Arbor Art Center: $141K across 2 grants, latest 2023Gs Donor Advised Philanthropy Fund → Arbor Brothers Inc: $115K across 3 grants, latest 2024The Wenner-Gren Foundation for → Yasmin Moll: $40K across 1 grant, latest 2023James A and Faith Knight Foundation → Foundations Preschool of Ann Arbor: $40K across 2 grants, latest 2024Cvs Foundation → Regents of the University Ann Arbor Mi: $28K across 3 grants, latest 2024Enterprise Holdings Foundation → Arbor Day Foundation: $1.0M across 1 grant, latest 2022Duffy Foundation → Ann Arbor Hands-On Museum: $550K across 3 grants, latest 2024Vaughan Foundation → Ann Arbor Hands On Museum: $210K across 3 grants, latest 2024Ann Arbor Area Community Foundation → Ann Arbor Hands On Museum: $207K across 1 grant, latest 2022Harry A and Margaret D Towsley → Spring Arbor University: $90K across 3 grants, latest 2024Gs Donor Advised Philanthropy Fund → Jewish Federation of Greater Ann Arbor: $75K across 3 grants, latest 2024Kla Foundation → Ann Arbor Public Schools: $50K across 2 grants, latest 2025James A and Faith Knight Foundation → Arbor Hospice: $40K across 2 grants, latest 2024Cvs Foundation → University of Michigan Ann Arbor Mi: $27K across 7 grants, latest 2023The Wenner-Gren Foundation for → Kristi Rhead: $25K across 1 grant, latest 2024Seattle Foundation → Jewish Federation of Greater Ann Arbor: $21K across 5 grants, latest 2024Duffy Foundation → Regents of the University of Michigan - Ann Arbor Meals On Wheels: $390K across 3 grants, latest 2024Vaughan Foundation → YMCA of Ann Arbor: $175K across 2 grants, latest 2023Ann Arbor Area Community Foundation → Ann Arbor Hands-On Museum: $164K across 2 grants, latest 2024Harry A and Margaret D Towsley → Arbor Hospice Foundation: $90K across 3 grants, latest 2024Gs Donor Advised Philanthropy Fund → Arbor Place: $41K across 3 grants, latest 2024James A and Faith Knight Foundation → Ann Arbor Active Against Als: $38K across 2 grants, latest 2024Kla Foundation → Ann Arbor Hands On Museum: $25K across 2 grants, latest 2025The Wenner-Gren Foundation for → Swagat Pani: $25K across 1 grant, latest 2024Enterprise Holdings Foundation → Arbor Circle Corporation: $10K across 1 grant, latest 2023Seattle Foundation → Ann Arbor Film Festival: $7K across 2 grants, latest 2023Cvs Foundation → Gift of Life Michigan Ann Arbor Mi: $6K across 2 grants, latest 2021Duffy Foundation → Ann Arbor YMCA: $370K across 2 grants, latest 2024Duffy Foundation → Ann Arbor Center for Independent Living: $255K across 3 grants, latest 2024Duffy Foundation → Ann Arbor Symphony Orchestra: $215K across 3 grants, latest 2024Duffy Foundation → Ann Arbor YMCA - General Operations: $185K across 1 grant, latest 2022Duffy Foundation → Ann Arbor Summer Festival: $170K across 3 grants, latest 2024Ann Arbor Area Community Foundation → Ann Arbor YMCA: $160K across 3 grants, latest 2024Duffy Foundation → Neutral Zone (Dba Ann Arbor Teen Center Inc): $150K across 3 grants, latest 2024Duffy Foundation → Arbor Hospice Foundation: $150K across 3 grants, latest 2024Vaughan Foundation → Ann Arbor Teen Center: $135K across 3 grants, latest 2024Ann Arbor Area Community Foundation → Ann Arbor Symphony Orchestra: $123K across 3 grants, latest 2024Vaughan Foundation → Ann Arbor Summer Festival: $95K across 3 grants, latest 2024Ann Arbor Area Community Foundation → Ann Arbor Housing Commission: $80K across 2 grants, latest 2023Duffy Foundation → Ann Arbor Community Center: $75K across 3 grants, latest 2024Harry A and Margaret D Towsley → Ann Arbor Symphony Orchestra: $65K across 3 grants, latest 2025Ann Arbor Area Community Foundation → Arbor Hospice: $64K across 2 grants, latest 2024Ann Arbor Area Community Foundation → Ronald Mcdonald House Charities of Ann Arbor: $60K across 3 grants, latest 2024Vaughan Foundation → Recycle Ann Arbor: $60K across 3 grants, latest 2024Harry A and Margaret D Towsley → Ele's Place Ann Arbor: $55K across 3 grants, latest 2025Ann Arbor Area Community Foundation → City of Ann Arbor: $50K across 3 grants, latest 2024Ann Arbor Area Community Foundation → Ann Arbor Elks Ipboe of W James L Crawford (Pratt) Lodge #322: $50K across 1 grant, latest 2024Ann Arbor Area Community Foundation → Arbor Hospice Inc: $43K across 1 grant, latest 2022Ann Arbor Area Community Foundation → Ann Arbor Summer Festival: $42K across 3 grants, latest 2024Ann Arbor Area Community Foundation → First United Methodist Church - Ann Arbor: $35K across 3 grants, latest 2024Ann Arbor Area Community Foundation → Ann Arbor Affordable Housing Corporation: $30K across 3 grants, latest 2024Kla Foundation → Blessings in A Backpack: $24K across 2 grants, latest 2025Ann Arbor Area Community Foundation → First Unitarian Universalist Church of Ann Arbor: $24K across 1 grant, latest 2022The Wenner-Gren Foundation for → Irene Promodh: $23K across 1 grant, latest 2024The Wenner-Gren Foundation for → Hannah Grace Hoover: $23K across 1 grant, latest 2023The Wenner-Gren Foundation for → Laura Margaret Bossio: $21K across 1 grant, latest 2023Kla Foundation → 826 Michigan: $21K across 2 grants, latest 2025Vaughan Foundation: $70M on this topic. Open the funder.Vaughan Foundation$70MEnterprise Holdings Foundation: $7.8M on this topic. Open the funder.Enterprise Holdings Foundation$7.8MDuffy Foundation: $3.1M on this topic. Open the funder.Duffy Foundation$3.1MAnn Arbor Area Community Foundation: $1.5M on this topic. Open the funder.Ann Arbor Area Community Foun…$1.5MThe Goldman Sachs Charitable Gift Fund: $1.0M on this topic. Open the funder.The Goldman Sachs Charitable…$1.0MSeattle Foundation: $757K on this topic. Open the funder.Seattle Foundation$757KHarry A and Margaret D Towsley: $440K on this topic. Open the funder.Harry A and Margaret D Towsley$440KKla Foundation: $344K on this topic. Open the funder.Kla Foundation$344KGs Donor Advised Philanthropy Fund: $231K on this topic. Open the funder.Gs Donor Advised Philanthropy…$231KThe Wenner-Gren Foundation for: $158K on this topic. Open the funder.The Wenner-Gren Foundation for$158KJames A and Faith Knight Foundation: $118K on this topic. Open the funder.James A and Faith Knight Foun…$118KCvs Foundation: $61K on this topic. Open the funder.Cvs Foundation$61KAnn Arbor Area Community Fdn: received $70M on this topicAnn Arbor Area Community Fdn$70MNational Arbor Day Foundation: received $6.8M on this topicNational Arbor Day Foundation$6.8MArbor Brothers Inc: received $1.2M on this topicArbor Brothers Inc$1.2MArbor Day Foundation: received $1.0M on this topicArbor Day Foundation$1.0MArbor Day Foundation: received $730K on this topicArbor Day Foundation$730KAnn Arbor Hands-On Museum: received $714K on this topicAnn Arbor Hands-On Museum$714KAnn Arbor Area Community Foundation: received $560K on this topicAnn Arbor Area Community Founda…$560KAnn Arbor YMCA: received $530K on this topicAnn Arbor YMCA$530KAnn Arbor Hands On Museum: received $442K on this topicAnn Arbor Hands On Museum$442KAnn Arbor Symphony Orchestra: received $403K on this topicAnn Arbor Symphony Orchestra$403KAnn Arbor Art Association Dba Ann Arbor Art Center: received $397K on this topicAnn Arbor Art Association Dba A…$397KRegents of the University of Michigan - Ann Arbor Meals On Wheels: received $390K on this topicRegents of the University of Mi…$390KAnn Arbor Summer Festival: received $307K on this topicAnn Arbor Summer Festival$307KAnn Arbor Center for Independent Living: received $255K on this topicAnn Arbor Center for Independen…$255KArbor Hospice Foundation: received $240K on this topicArbor Hospice Foundation$240KScience Is Elementary: received $225K on this topicScience Is Elementary$225KAnn Arbor YMCA - General Operations: received $185K on this topicAnn Arbor YMCA - General Operat…$185KYMCA of Ann Arbor: received $175K on this topicYMCA of Ann Arbor$175KNeutral Zone (Dba Ann Arbor Teen Center Inc): received $150K on this topicNeutral Zone (Dba Ann Arbor Tee…$150KAnn Arbor Art Center: received $141K on this topicAnn Arbor Art Center$141KAnn Arbor Teen Center: received $135K on this topicAnn Arbor Teen Center$135KArbor Hospice: received $104K on this topicArbor Hospice$104KJewish Federation of Greater Ann Arbor: received $96K on this topicJewish Federation of Greater An…$96KSpring Arbor University: received $90K on this topicSpring Arbor University$90KAnn Arbor Housing Commission: received $80K on this topicAnn Arbor Housing Commission$80KAnn Arbor Community Center: received $75K on this topicAnn Arbor Community Center$75KRonald Mcdonald House Charities of Ann Arbor: received $60K on this topicRonald Mcdonald House Charities…$60KRecycle Ann Arbor: received $60K on this topicRecycle Ann Arbor$60KEle's Place Ann Arbor: received $55K on this topicEle's Place Ann Arbor$55KCity of Ann Arbor: received $50K on this topicCity of Ann Arbor$50KAnn Arbor Elks Ipboe of W James L Crawford (Pratt) Lodge #322: received $50K on this topicAnn Arbor Elks Ipboe of W James…$50KAnn Arbor Public Schools: received $50K on this topicAnn Arbor Public Schools$50KArbor Hospice Inc: received $43K on this topicArbor Hospice Inc$43KArbor Place: received $41K on this topicArbor Place$41KYasmin Moll: received $40K on this topicYasmin Moll$40KFoundations Preschool of Ann Arbor: received $40K on this topicFoundations Preschool of Ann Ar…$40KAnn Arbor Active Against Als: received $38K on this topicAnn Arbor Active Against Als$38KFirst United Methodist Church - Ann Arbor: received $35K on this topicFirst United Methodist Church -…$35KAnn Arbor Affordable Housing Corporation: received $30K on this topicAnn Arbor Affordable Housing Co…$30KRegents of the University Ann Arbor Mi: received $28K on this topicRegents of the University Ann A…$28KUniversity of Michigan Ann Arbor Mi: received $27K on this topicUniversity of Michigan Ann Arbo…$27KKristi Rhead: received $25K on this topicKristi Rhead$25KSwagat Pani: received $25K on this topicSwagat Pani$25KBlessings in A Backpack: received $24K on this topicBlessings in A Backpack$24KFirst Unitarian Universalist Church of Ann Arbor: received $24K on this topicFirst Unitarian Universalist Ch…$24KIrene Promodh: received $23K on this topicIrene Promodh$23KHannah Grace Hoover: received $23K on this topicHannah Grace Hoover$23KLaura Margaret Bossio: received $21K on this topicLaura Margaret Bossio$21K826 Michigan: received $21K on this topic826 Michigan$21KArbor Circle Corporation: received $10K on this topicArbor Circle Corporation$10KAnn Arbor Film Festival: received $7K on this topicAnn Arbor Film Festival$7KGift of Life Michigan Ann Arbor Mi: received $6K on this topicGift of Life Michigan Ann Arbor…$6K
12 funders, 52 recipients, grants matching “arbor” 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 →