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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 “maintain”

Where the money went

1.0×
Jhpiego Corporation → The Trustees of Columbia University in the City of New Yorkon Behalf of Ic: $14M across 2 grants, latest 2022The Colorado Health Foundation → Trailhead Institute: $4.2M across 1 grant, latest 2023The Parent Project for Muscular → Cincinnati Children's Hospital Mc: $641K across 1 grant, latest 2022Lawrence E & Elaine Smith Irell Foundation → Union of Concerned Scientists: $360K across 3 grants, latest 2024City Parks Foundation Inc → Gowanus Canal Conservancy: $299K across 3 grants, latest 2024The Reinvestment Fund Inc → Rosebird Gardens LLC: $200K across 3 grants, latest 2024Price County Snowmobile Trails Inc → Prentice Bushbenders: $126K across 3 grants, latest 2024The International Association → Dayton Contemporary Dance Company: $100K across 1 grant, latest 2021Apache Foundation → City of Houston Parks and Recreatio: $63K across 1 grant, latest 2022Marshall L and Perrine D Mccune → Santa Fe Community Foundation Fiscal Sponsor for New Mexico Local News Fund: $50K across 1 grant, latest 2022The Streicker Foundation Inc → Central Park Conservancy: $40K across 4 grants, latest 2025Samuel Weiss Family Charitable → Tower One East: $37K across 2 grants, latest 2023Jhpiego Corporation → The Trustees of Columbia University in New York City On Behalf of Icap: $13M across 2 grants, latest 2021The Colorado Health Foundation → Axis Health System: $2.5M across 2 grants, latest 2023The Parent Project for Muscular → Cincinnati Children's Hospital: $589K across 1 grant, latest 2023City Parks Foundation Inc → New Yorkers for Parks: $235K across 3 grants, latest 2024The Reinvestment Fund Inc → Lakeshore Depot L3c: $200K across 2 grants, latest 2023The International Association → Kankouran West African Dance Company: $100K across 1 grant, latest 2021Price County Snowmobile Trails Inc → Drift Splitters: $73K across 3 grants, latest 2024Lawrence E & Elaine Smith Irell Foundation → Doctors Without Borders USA: $45K across 3 grants, latest 2024Samuel Weiss Family Charitable → Caz-Cares: $37K across 2 grants, latest 2023Marshall L and Perrine D Mccune → Environmental Education Association of New Mexico: $35K across 2 grants, latest 2023The Streicker Foundation Inc → Horace Mann Annual Giving: $23K across 4 grants, latest 2025Apache Foundation → Keep San Angelo Beautiful: $21K across 4 grants, latest 2024Jhpiego Corporation → Management Sciences for Health: $6.3M across 6 grants, latest 2024The Colorado Health Foundation → Valley-Wide Health Systems Inc: $2.3M across 1 grant, latest 2023The Reinvestment Fund Inc → Atlanta Harvest LLC: $200K across 3 grants, latest 2024City Parks Foundation Inc → Brooklyn Greenway Initiative: $190K across 3 grants, latest 2024The Parent Project for Muscular → The Nemours Foundation: $180K across 3 grants, latest 2024The International Association → Lula Washington Dance Theatre: $100K across 1 grant, latest 2021Price County Snowmobile Trails Inc → Park Falls Snow Gypsies: $52K across 3 grants, latest 2024Lawrence E & Elaine Smith Irell Foundation → International Rescue Committee: $45K across 3 grants, latest 2024Samuel Weiss Family Charitable → Planned Parenthood: $37K across 2 grants, latest 2023Marshall L and Perrine D Mccune → Conservation Legacy: $25K across 1 grant, latest 2023The Streicker Foundation Inc → The Brearley School Office of Annual Giving: $23K across 4 grants, latest 2025Apache Foundation → City of Baytown Parks and Recreation: $13K across 1 grant, latest 2021Jhpiego Corporation → The Trustees of Columbia University in the City of New York On Behalf of Ic: $5.9M across 1 grant, latest 2023Jhpiego Corporation → The Trustees of Columbia University in the City of New York: $3.7M across 1 grant, latest 2024The Colorado Health Foundation → Colorado Department of Public Health and Environment: $2.2M across 1 grant, latest 2023The Colorado Health Foundation → Social Finance Inc: $2.0M across 1 grant, latest 2022The Colorado Health Foundation → Fort Lewis College Foundation: $1.8M across 2 grants, latest 2023The Colorado Health Foundation → Montbello Organizing Committee: $1.7M across 1 grant, latest 2023The Colorado Health Foundation → The Hadanou Collective: $1.3M across 1 grant, latest 2023The Colorado Health Foundation → Colorado Nonprofit Development Center: $1.2M across 1 grant, latest 2023The Colorado Health Foundation → Blackpackers: $1.1M across 2 grants, latest 2023The Colorado Health Foundation → Western Colorado Alliance for Community Action: $1.1M across 1 grant, latest 2023The Colorado Health Foundation → Worklife Partnership: $1.0M across 1 grant, latest 2022The Colorado Health Foundation → Colorado Digital Health Dba Prime Health: $935K across 2 grants, latest 2023The Colorado Health Foundation → Denver Health and Hospitals Foundation: $893K across 2 grants, latest 2023The Colorado Health Foundation → Mountain Family Health Centers: $859K across 2 grants, latest 2023The Colorado Health Foundation → Tepeyac Community Health Center: $791K across 2 grants, latest 2023The Colorado Health Foundation → Pagosa Peak Open School: $713K across 2 grants, latest 2023The Colorado Health Foundation → St Vincent Hospital: $708K across 1 grant, latest 2023The Colorado Health Foundation → Boulder Library Foundation: $700K across 1 grant, latest 2022The Colorado Health Foundation → Thompson School District: $700K across 1 grant, latest 2022The Colorado Health Foundation → Battle Rock Charter School: $693K across 2 grants, latest 2023The Colorado Health Foundation → Project Worthmore: $692K across 1 grant, latest 2022The Colorado Health Foundation → Strive Preparatory Schools: $667K across 1 grant, latest 2022The Colorado Health Foundation → Montezuma Cortez School District Re-1: $652K across 2 grants, latest 2023Jhpiego Corporation → Alfluence International Limited: $587K across 2 grants, latest 2022The Colorado Health Foundation → Stride Community Health Center: $570K across 2 grants, latest 2023The Colorado Health Foundation → Family and Intercultural Resource Center: $560K across 1 grant, latest 2023The Colorado Health Foundation → Trust for Public Land - Colorado: $557K across 1 grant, latest 2022The Colorado Health Foundation → Kids First Health Care: $553K across 2 grants, latest 2023Jhpiego Corporation: $43M on this topic. Open the funder.Jhpiego Corporation$43MThe Colorado Health Foundation: $34M on this topic. Open the funder.The Colorado Health Foundation$34MThe Parent Project for Muscular: $1.4M on this topic. Open the funder.The Parent Project for Muscul…$1.4MCity Parks Foundation Inc: $724K on this topic. Open the funder.City Parks Foundation Inc$724KThe Reinvestment Fund Inc: $600K on this topic. Open the funder.The Reinvestment Fund Inc$600KLawrence E & Elaine Smith Irell Foundation: $450K on this topic. Open the funder.Lawrence E & Elaine Smith Ire…$450KThe International Association: $300K on this topic. Open the funder.The International Association$300KPrice County Snowmobile Trails Inc: $252K on this topic. Open the funder.Price County Snowmobile Trail…$252KMarshall L and Perrine D Mccune: $110K on this topic. Open the funder.Marshall L and Perrine D Mccu…$110KSamuel Weiss Family Charitable: $110K on this topic. Open the funder.Samuel Weiss Family Charitable$110KApache Foundation: $96K on this topic. Open the funder.Apache Foundation$96KThe Streicker Foundation Inc: $85K on this topic. Open the funder.The Streicker Foundation Inc$85KThe Trustees of Columbia University in the City of New Yorkon Behalf of Ic: received $14M on this topicThe Trustees of Columbia Univer…$14MThe Trustees of Columbia University in New York City On Behalf of Icap: received $13M on this topicThe Trustees of Columbia Univer…$13MManagement Sciences for Health: received $6.3M on this topicManagement Sciences for Health$6.3MThe Trustees of Columbia University in the City of New York On Behalf of Ic: received $5.9M on this topicThe Trustees of Columbia Univer…$5.9MTrailhead Institute: received $4.2M on this topicTrailhead Institute$4.2MThe Trustees of Columbia University in the City of New York: received $3.7M on this topicThe Trustees of Columbia Univer…$3.7MAxis Health System: received $2.5M on this topicAxis Health System$2.5MValley-Wide Health Systems Inc: received $2.3M on this topicValley-Wide Health Systems Inc$2.3MColorado Department of Public Health and Environment: received $2.2M on this topicColorado Department of Public H…$2.2MSocial Finance Inc: received $2.0M on this topicSocial Finance Inc$2.0MFort Lewis College Foundation: received $1.8M on this topicFort Lewis College Foundation$1.8MMontbello Organizing Committee: received $1.7M on this topicMontbello Organizing Committee$1.7MThe Hadanou Collective: received $1.3M on this topicThe Hadanou Collective$1.3MColorado Nonprofit Development Center: received $1.2M on this topicColorado Nonprofit Development…$1.2MBlackpackers: received $1.1M on this topicBlackpackers$1.1MWestern Colorado Alliance for Community Action: received $1.1M on this topicWestern Colorado Alliance for C…$1.1MWorklife Partnership: received $1.0M on this topicWorklife Partnership$1.0MColorado Digital Health Dba Prime Health: received $935K on this topicColorado Digital Health Dba Pri…$935KDenver Health and Hospitals Foundation: received $893K on this topicDenver Health and Hospitals Fou…$893KMountain Family Health Centers: received $859K on this topicMountain Family Health Centers$859KTepeyac Community Health Center: received $791K on this topicTepeyac Community Health Center$791KPagosa Peak Open School: received $713K on this topicPagosa Peak Open School$713KSt Vincent Hospital: received $708K on this topicSt Vincent Hospital$708KBoulder Library Foundation: received $700K on this topicBoulder Library Foundation$700KThompson School District: received $700K on this topicThompson School District$700KBattle Rock Charter School: received $693K on this topicBattle Rock Charter School$693KProject Worthmore: received $692K on this topicProject Worthmore$692KStrive Preparatory Schools: received $667K on this topicStrive Preparatory Schools$667KMontezuma Cortez School District Re-1: received $652K on this topicMontezuma Cortez School Distric…$652KCincinnati Children's Hospital Mc: received $641K on this topicCincinnati Children's Hospital…$641KCincinnati Children's Hospital: received $589K on this topicCincinnati Children's Hospital$589KAlfluence International Limited: received $587K on this topicAlfluence International Limited$587KStride Community Health Center: received $570K on this topicStride Community Health Center$570KFamily and Intercultural Resource Center: received $560K on this topicFamily and Intercultural Resour…$560KTrust for Public Land - Colorado: received $557K on this topicTrust for Public Land - Colorado$557KKids First Health Care: received $553K on this topicKids First Health Care$553KUnion of Concerned Scientists: received $360K on this topicUnion of Concerned Scientists$360KGowanus Canal Conservancy: received $299K on this topicGowanus Canal Conservancy$299KNew Yorkers for Parks: received $235K on this topicNew Yorkers for Parks$235KRosebird Gardens LLC: received $200K on this topicRosebird Gardens LLC$200KLakeshore Depot L3c: received $200K on this topicLakeshore Depot L3c$200KAtlanta Harvest LLC: received $200K on this topicAtlanta Harvest LLC$200KBrooklyn Greenway Initiative: received $190K on this topicBrooklyn Greenway Initiative$190KThe Nemours Foundation: received $180K on this topicThe Nemours Foundation$180KPrentice Bushbenders: received $126K on this topicPrentice Bushbenders$126KDayton Contemporary Dance Company: received $100K on this topicDayton Contemporary Dance Compa…$100KKankouran West African Dance Company: received $100K on this topicKankouran West African Dance Co…$100KLula Washington Dance Theatre: received $100K on this topicLula Washington Dance Theatre$100KDrift Splitters: received $73K on this topicDrift Splitters$73KCity of Houston Parks and Recreatio: received $63K on this topicCity of Houston Parks and Recre…$63KPark Falls Snow Gypsies: received $52K on this topicPark Falls Snow Gypsies$52KSanta Fe Community Foundation Fiscal Sponsor for New Mexico Local News Fund: received $50K on this topicSanta Fe Community Foundation F…$50KDoctors Without Borders USA: received $45K on this topicDoctors Without Borders USA$45KInternational Rescue Committee: received $45K on this topicInternational Rescue Committee$45KCentral Park Conservancy: received $40K on this topicCentral Park Conservancy$40KTower One East: received $37K on this topicTower One East$37KCaz-Cares: received $37K on this topicCaz-Cares$37KPlanned Parenthood: received $37K on this topicPlanned Parenthood$37KEnvironmental Education Association of New Mexico: received $35K on this topicEnvironmental Education Associa…$35KConservation Legacy: received $25K on this topicConservation Legacy$25KHorace Mann Annual Giving: received $23K on this topicHorace Mann Annual Giving$23KThe Brearley School Office of Annual Giving: received $23K on this topicThe Brearley School Office of A…$23KKeep San Angelo Beautiful: received $21K on this topicKeep San Angelo Beautiful$21KCity of Baytown Parks and Recreation: received $13K on this topicCity of Baytown Parks and Recre…$13K
12 funders, 64 recipients, grants matching “maintain” 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 →