· Private foundation
The Tweten Foundation
Its FY2024 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 FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k4 grants · $13k
- $10k–50k2 grants · $45k
- $50k–250k1 grant · $50k
| Recipient | Amount |
|---|---|
| SANTA LUCIA CONSERVANCY | $50,000 |
| EISENHOWER HEALTH FOUNDATION | $25,000 |
| WHALE SANCTUARY PROJECT | $20,000 |
| SPCA OF MONTEREY COUNTY | $6,000 |
| ALZHEIMER DRUG DISCOVERY FOUNDATION | $5,000 |
| SEEING SPOTS FARM | $1,000 |
| CANCER HELP DESK | $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 (FY19–23, $11k) land where the poverty rate runs at 8%, against an area that typically sits at 11%. 9% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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 6% of The Tweten 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. Read by recipient address, 92% of the giving stays in CA; read by stated purpose it is 87% — less of the work is directed home than the recipients' locations suggest.
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.
6 repeat relationships — 2 still active in FY2024, 4 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, 29% of grant dollars renewed an existing relationship; $77k 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
- DCDESERT CANCER FOUNDATION7× · 2017–2023 · $155k · revenue +71%
- SFSociety for the Prevention of Cruelty to Animals for Monterey County6× · 2018–2024 · $56k · revenue +44%
- EMEisenhower Medical Center2× · 2023–2024 · $34k · revenue +23%
Funded once
- IGIndividual grant recipientone grant, 2017 · $25k
- SHSACRED HEART CHURCHone grant, 2021 · $10k
- BMBald Mountain Rescue Fundone grant, 2019 · $10k · revenue -69%
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 california wildlife center (cwc) takes responsibility for the protection of all native wildlife through rehabilitiation, education and conservation. as the los angeles area's premier wildlife medical care and rehabilitation facility,…
See schedule orancho coastal is dedicated to the rescue and shelter of abandoned companion animals. it encourages adoptions into loving homes and provides educational and community outreach programs designed to enhance the human-animal…
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.
Animal care sanctuary's lifesaving mission as a no kill organization envisions a community that promotes turning compassion into action for companion animals by: 1.) adopting healthy pet companions into loving homes. 2.) promoting the…
The organization provides professional investment management services for endowed gifts and financial assets entrusted to the ucsf foundation.
California Coastkeeper Alliance unites Waterkeeper programs statewide to fight for swimmable, fishable, and drinkable waters for all Californians.
Donate Life Californa is a nonprofit organ and tissue donor registry dedicated to saving the lives of thousands of Californians awaiting life-saving transplants. The registry is used by the states organ and tissue recovery organizations.
The Sierra Fund (TSF) is a non-profit organization with a mission to restore ecosystem and community resiliency in the Sierra Nevada.
Clsa advances californias world-leading life sciences innovation ecosystem by advocating for effective national, state and local public policies and supporting entrepreneurs and life sciences businesses.
Los padres forestwatch protects the los padres national forest and the carrizo plain national monument through education, advocacy, and when necessary, legal action for the benefit of our communities, climate and future generations.
The Ralph Lauren Center for Cancer Care and Prevention was incorporated in 2002 in the State of New York as a non-for-profit organization to provide individuals, many of whom are medically underserved - with access to the highest quality…
Cuenca los ojos works to preserve and restore the biodiversity of the us/mexican borderlands through land protection, habitat restoration and wildlife reintroduction.
For reference, the grantee most central to the portfolio’s shape is Santa Lucia Conservancy and the most unlike its peers is Food in Need of Distribution Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
14 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. 14 of the 24 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 DESERT CANCER FOUNDATION ↗
- Who funds Society for the Prevention of Cruelty to Animals for Monterey County ↗
- Who funds SANTA LUCIA CONSERVANCY ↗
- Who funds Eisenhower Medical Center ↗
- Who funds GANNA WALSKA LOTUSLAND ↗
- Who funds Bald Mountain Rescue Fund ↗
- Who funds JUNIPERO SERRA CATHOLIC HIGH SCHOOL ↗
- Who funds Animal Samaritans ↗
- Who funds Cheetah Conservation Fund ↗
- Who funds FOOD IN NEED OF DISTRIBUTION INC ↗
- Who funds ALZHEIMER'S DRUG DISCOVERY FOUNDATION ↗
- Who funds The Eisenhower Foundation ↗
- Who funds Cancer Help Desk ↗
- Who funds LANGE FOUNDATION ↗
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: Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 The Tweten 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 Tweten Foundation?
Find your warmest path to The Tweten 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.