· Private foundation
The Thornhill Family Foundation
Its FY2018 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2018.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2018
- Under $10k8 grants · $21k
- $10k–50k1 grant · $16k
| Recipient | Amount |
|---|---|
| GAMMA PHI BETA FOUNDATION | $16,000 |
| DARAJA EDUCATION FUND | $5,000 |
| COLORADO GRAND INC | $4,000 |
| W OSCAR NEUHAUS MEMORIAL FOUNDATION | $3,000 |
| 10-90 COPPERSTATE FOUNDATION INC | $3,000 |
| STANFORD UNIVERSITY GRADUATE SCHOOL OF BUSINESS | $2,500 |
| WILDCARE | $1,000 |
| SUNHOUSE GUILD ASSOCIATION | $1,000 |
| MARINE MAMMAL CENTER | $1,000 |
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 (FY17–17, $1k) land where the poverty rate runs at 9%, against an area that typically sits at 8%. 100% 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.
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.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 12% of The Thornhill Family Foundation’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another.
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +101% since the first grant, against +32% for the ones you funded once.
8 repeat relationships — 8 still active in FY2018, 0 since wound down.
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 FY2018, 100% of grant dollars renewed an existing relationship; $0 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
- GPGAMMA PHI BETA FOUNDATION2× · 2017–2018 · $39k · revenue +60%
- DEDaraja Education Fund2× · 2017–2018 · $10k · revenue +425%
- CGCOLORADO GRAND INC2× · 2017–2018 · $8k · revenue +144%
Funded once
- NWNATIONAL WILDLIFE FEDERATIONgraduatedone grant, 2017 · $1k · revenue +72%
- BABAY AREA RESCUE MISSIONgraduatedone grant, 2017 · $1k · revenue +32%
- HAHOPALONG ANIMAL RESCUEone grant, 2017 · $1k · revenue -25%
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.
Alaska Whale Foundation is dedicated to marine mammal conservation through research monitoring and education.
Marin humane transforms lives through exceptional animal care, humane education, and advocacy. every day, marin humane inspires compassion and positive relationships between people and animals.
The nmmf's mission is to improve and protect life for marine mammals, humans, and our shared oceans through science, service, and education. our vision is to be the leading laboratory in marine mammal science, where critical questions…
Save threatened marine life using pioneering research, education, and sustainable conservation solutions
To sustain, restore, and enhance the nation's fish, wildlife, plants, and habitats.
To inspire people to care for and protect our ocean planet through education and research.
The Sierra Fund (TSF) is a non-profit organization with a mission to restore ecosystem and community resiliency in the Sierra Nevada.
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 mission of the uc davis foundation is to secure, steward and manage private gifts for uc davis.
The organization provides professional investment management services for endowed gifts and financial assets entrusted to the ucsf foundation.
See schedule odedicated to rescuing, protecting and providing sanctuary for elephants worldwide. our founding directors and elephant care specialist consult internationally for the wellbeing of captive elephants. currently based in brazil,…
To facilitate research and development within the texas a&m university system and selected other entities.
For reference, the grantee most central to the portfolio’s shape is Gamma Phi Beta Foundation and the most unlike its peers is National Wildlife Federation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
12 grantees tracked through their own filings, 2017–2025.
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 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover.
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 GAMMA PHI BETA FOUNDATION ↗
- Who funds Daraja Education Fund ↗
- Who funds COLORADO GRAND INC ↗
- Who funds The W Oscar Neuhaus Memorial Foundation ↗
- Who funds 10-90 COPPERSTATE FOUNDATION ↗
- Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds THE MARINE MAMMAL CENTER ↗
- Who funds WILDCARE ↗
- Who funds SUN HOUSE GUILD CORPORATION ↗
- Who funds NATIONAL WILDLIFE FEDERATION ↗
- Who funds BAY AREA RESCUE MISSION ↗
- Who funds HOPALONG ANIMAL RESCUE ↗
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: National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund
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 The Thornhill Family 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.
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 The Thornhill Family Foundation?
Find your warmest path to The Thornhill Family 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.