· Private foundation
Marianne and George Markham Foundation
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.
Where the money goes
Grants by size, and the largest recipients.
| Recipient | Amount |
|---|---|
| WATCH TOWER BIBLE AND TRACT SOCIETY | $5,000 |
| AMERICAN CIVIL LIBERTIES UNION FDN | $1,150 |
| STANFORD UNIVERSITY | $1,000 |
| STANFORD UNIVERSITY LAW SCHOOL | $750 |
| NATURAL RESOURCES DEFENSE COUNCIL | $750 |
| PLANNED PARENTHOOD OF THE ROCKY MOUNTAINS | $750 |
| DANCEWAVE | $750 |
| INTERCAMBIO DE COMUNIDADES | $700 |
| PRO PUBLICA INC | $600 |
| DOCTORS WITHOUT BORDERS | $550 |
| PLANNED PARENTHOOD OF GREATER TEXAS | $500 |
| ROCKY MOUNTAIN PUBLIC MEDIA PHILANTHROPIC GIVING | $500 |
| Individual grant recipient | $500 |
| PLANNED PARENTHOOD FEDERATION OF AMERICA | $500 |
| BIRD CONSERVANCY OF THE ROCKIES | $500 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY17–25, $15k) land where the poverty rate runs at 12%, against an area that typically sits at 10%. 97% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
Which US states its grants reach
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
66 repeat relationships: 41 still active in FY2025, 25 since wound down; 4 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 92% of grant dollars renewed an existing relationship; $2k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
NATURAL RESOURCES DEFENSE COUNCIL INC9× · 2017–2025 · $19k · revenue +41%- LWLIGHTHOUSE WRITERS WORKSHOP INC9× · 2017–2025 · $11k · revenue +96%
- IDINTERCAMBIO DE COMUNIDADES9× · 2017–2025 · $10k · revenue +26%
Funded once
- HSHUMANE SOCIETY OF VENTURA COUNTYone grant, 2018 · $500 · revenue -45%
- CWCITY WILDone grant, 2022 · $500
- WTWE THE PROTESTERS INCone grant, 2020 · $500 · revenue -94%
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
Wwf's mission is to conserve nature and reduce the most pressing threats to the diversity of life on earth. (continued on schedule o)
Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.
The purpose of the water research foundation (wrf) is a definitive research organization to advance the science of all things water to better meet the evolving needs of its subscribers and the water sector. to engage exclusively in…
The npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…
American gas association's (the association) mission is to develop and advocate for informed, innovative, and durable policy that fulfills our nation's energy needs, environmental aspirations and economic potential. we are committed to…
The organization's mission is to conserve and promote new england's native plants to ensure healthy, biologically diverse landscapes.
To drive transformational adaptation to protect communities across the country from higher seas, stronger storms, and more frequent flooding.
Cdp north america, inc. 's ("cdp-na") vision for the future is a thriving economy that works for people and planet in the long term. we focus investors and companies on taking urgent action to build a truly sustainable economy by measuring…
Wri is committed to creating change that improves people's lives and ensures the natural world can thrive. (see schedule o)wri's bold vision requires a formula for success we call "count it. change it. scale it.":- count it: our work is…
Friends of the earth strives for a more healthy and just world by defendng the environment and human health while advancing social and economic justice by conducting research and education, transforming the economy so it protects the…
To establish and promote programs to protect the global climate, forests, wildlife and the natural environment, through research, advocacy, and investigation.
To strenghten people's ability to guarantee their individual and collective right to a healthy environment, via the development, implementation, and effective enforcement of national and international law.
How this is measured
77 grantees tracked through their own filings, 2017–2026.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2026, not grant rows in a single year, so this will not match the grant count on the cover. 77 of the 99 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds NATURAL RESOURCES DEFENSE COUNCIL INC ↗
- Who funds LIGHTHOUSE WRITERS WORKSHOP INC ↗
- Who funds INTERCAMBIO DE COMUNIDADES ↗
- Who funds ROCKY MOUNTAIN PLANNED PARENTHOOD INC ↗
- Who funds AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC ↗
- Who funds SAVE THE HARBORSAVE THE BAY INC ↗
- Who funds PRO PUBLICA INC ↗
- Who funds WESTOVER SCHOOL INC ↗
- Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
- Who funds HIGH COUNTRY NEWS ↗
- Who funds Dancewave Inc ↗
- Who funds The Trustees of Princeton University ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds THE UNION OF CONCERNED SCIENTISTS INC ↗
- Who funds FREEDOM CENTER TEXAS ↗
- Who funds Bridge House ↗
- Who funds COMMUNITY FOOD SHARE INC ↗
- Who funds WGBH Educational Foundation ↗
- Who funds BOULDER AUDUBON SOCIETY Boulder County Audubon Society ↗
- Who funds PLANNED PARENTHOOD OF WISCONSIN INC ↗
- Who funds BOULDER COMMUNITY HEALTH FOUNDATION ↗
- Who funds OXFAM-AMERICA INC ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds PLANNED PARENTHOOD OF GREATER TEXAS INC ↗
- Who funds ROCKY MOUNTAIN PUBLIC MEDIA INC ↗
- Who funds Estes Park Medical Center Foundation ↗
- Who funds EARTHJUSTICE ↗
- Who funds THE NEW YORK TIMES COMMUNITIES FUND ↗
- Who funds DENVER DUMB FRIENDS LEAGUE ↗
- Who funds THE UNIVERSITY OF TEXAS FOUNDATION INC ↗
- Who funds WESTERN NATIONAL PARKS ASSOCIATION ↗
- Who funds ROCKY MOUNTAIN CONSERVANCY ↗
- Who funds MILTON ACADEMY ↗
- Who funds WELD COMMUNITY FOUNDATION ↗
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: Colorado Gives Foundation · The Denver Foundation · Amg Charitable Gift Foundation · Ibm International Foundation · The Colorado Health Foundation · The Pfizer Foundation Inc · Community Foundation of Northern Colorado · Community Foundation Boulder County · Rose Community Foundation · Patagoniaorg · Greater Houston Community Foundation · Shell USA Company Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization Marianne and George Markham Foundation funds: left to right is the share of its income from government, bottom to top the share from Marianne and George Markham Foundation. Bigger dots raise more.
- Save the Children Federation Inc: 30% of income from government
- The Trustees of Princeton University: 11% of income from government
- President and Fellows of Harvard College: 7% of income from government
- Wgbh Educational Foundation: 1% of income from government
- Milton Academy: 0% of income from government
- Oxfam-America Inc: 0% of income from government
How this is measured
Warm introductions · Powered by PlinthPlus
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