· Private foundation
Flora L Thornton Foundation
Its FY2024 filing reports that it accepted unsolicited grant applications.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2018–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k13 grants · $50k
- $10k–50k33 grants · $722k
- $50k–250k21 grants · $1.4M
| Recipient | Amount |
|---|---|
| GREENBELT ALLIANCE | $140,000 |
| AS YOU SOW | $100,000 |
| ENVIRONMENTAL DEFENSE FUND | $100,000 |
| THE NATURE CONSERVANCY | $90,000 |
| CALIFORNIA SCIENCE CENTER | $75,000 |
| LIBRARY FOUNDATION OF LOS ANGELES | $75,000 |
| AFRICAN WILDLIFE FOUNDATION | $70,000 |
| CROHN'S & COLITIS FOUNDATION OF AMERICA | $70,000 |
| CENTER FOR ENVIRONMENTAL HEALTH | $70,000 |
| SOUTHERN ENVIRONMENTAL LAW CENTER | $70,000 |
| SUSTAINABLE CONSERVATION | $60,000 |
| RAINFOREST ALLIANCE | $60,000 |
| POPULATION MEDIA CENTER | $60,000 |
| ROCKY MOUNTAIN INSTITUTE | $55,000 |
| THE CLIMATE CENTER | $55,000 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY18–24, $64k) land where the poverty rate runs at 13%, against an area that typically sits at 10%. 84% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
103 repeat relationships — 60 still active in FY2024, 43 since wound down; 5 grantees were first funded in FY2024 (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 FY2024, 98% of grant dollars renewed an existing relationship; $50k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- GAGREENBELT ALLIANCEPEOPLE FOR OPEN SPACE6× · 2018–2024 · $720k · revenue +42%
- GLGREATER LOS ANGELES ZOOLOGICAL ASSOCIATION7× · 2018–2024 · $587k · revenue +26%
ENVIRONMENTAL DEFENSE FUND INCORPORATED7× · 2018–2024 · $550k · revenue +111%
Funded once
- MSMORGAN STANLEY GLOBAL IMPACT FUNDING TRUST (DAF) #9464one grant, 2020 · $300k
- MSMORGAN STANLEY GIFT (DAF) #9464one grant, 2019 · $125k
- EDENVIRONMENTAL DEFENSE FUND -FISHERIES PHILone grant, 2018 · $50k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.
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 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.
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.
To engage and catalyze global seafood supply chains in rebuilding depleted fish stocks and reducing the environmental impacts of fishing and fish farming.
The aquarium of the pacific's mission is to instill a sense of wonder, respect, and stewardship for the pacific ocean, its inhabitants, and ecosystems.
Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…
Create and publish educational materials, conduct professional development, promote awareness, and sponsor research on the spectacular biological diversity of the State of CA.
The mission of the uc davis foundation is to secure, steward and manage private gifts for uc davis.
As california state parks' statutory non-profit partner, we have a clear mission - to help strengthen parks and inspire all people to experience these extraordinary places.
The association serves its members by creating resources that enable california school administrators to develop and apply creative leadership and management skills and in turn, improve the educational process for all students.
For reference, the grantee most central to the portfolio’s shape is As You Sow and the most unlike its peers is O Street Museum Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 41 years old; the field is 15. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 1% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.8% lost their exemption, against 14% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
118 grantees tracked through their own filings, 2017–2026.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2026, not grant rows in a single year — so this will not match the grant count on the cover. 118 of the 165 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds GREENBELT ALLIANCEPEOPLE FOR OPEN SPACE ↗
- Who funds GREATER LOS ANGELES ZOOLOGICAL ASSOCIATION ↗
- Who funds ENVIRONMENTAL DEFENSE FUND INCORPORATED ↗
- Who funds RAINFOREST ALLIANCE INC ↗
- Who funds RARE ↗
- Who funds THE LIBRARY FOUNDATION OF LOS ANGELES ↗
- Who funds Center for Environmental Health ↗
- Who funds POPULATION MEDIA CENTER INC ↗
- Who funds AS YOU SOW ↗
- Who funds Rocky Mountain Institute ↗
- Who funds Sustainable Conservation ↗
- Who funds PEPPERWOOD FOUNDATION ↗
- Who funds SAVE THE REDWOODS LEAGUE ↗
- Who funds CONSERVATION INTERNATIONAL FOUNDATION ↗
- Who funds CROHN'S & COLITIS FOUNDATION INC ↗
- Who funds THE NATURE CONSERVANCY ↗
- Who funds UNIVERSITY OF SOUTHERN CALIFORNIA ↗
- Who funds LIBERTY HILL FOUNDATION ↗
- Who funds THE TRUST FOR PUBLIC LAND ↗
- Who funds SOUTHERN ENVIRONMENTAL LAW CENTER ↗
- Who funds CALIFORNIA SCIENCE CENTER FOUNDATION ↗
- Who funds NATURAL RESOURCES DEFENSE COUNCIL INC ↗
- Who funds YOSEMITE FOUNDATION ↗
- Who funds MUSEUM ASSOCIATES ↗
- Who funds The Climate Center ↗
- Who funds AFRICAN WILDLIFE FOUNDATION INC ↗
- Who funds CENTER FOR SCIENCE IN THE PUBLIC INTEREST ↗
- Who funds UNIVERSITY OF SAN DIEGO ↗
- Who funds SKIRBALL CULTURAL CENTER ↗
- Who funds MuseIque ↗
- Who funds Wildlife Conservation Society ↗
- Who funds GREATER LOS ANGELES EDUCATION FOUNDATION ↗
- Who funds CHILDREN OF CONSERVATION INC ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: The Laney and Pasha Thornton Foundation · California Community Foundation · The Ralph M Parsons Foundation · The Rose Hills Foundation · The Ahmanson Foundation · Marin Community Foundation · The Annenberg Foundation · Elbridge Stuart Foundation Dba Stuart Foundation · The San Francisco Foundation · Gordon E and Betty I Moore Foundation · Mary a Crocker Trust · McNabb Foundation
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Flora L Thornton Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
- President and Fellows of Harvard College — 7% of income from government
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.
Warm introductions · Powered by PlinthPlus
How do I get to Flora L Thornton Foundation?
Find your warmest path to Flora L Thornton Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.