· Private foundation
Casteel Family 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 you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- $10k–50k3 grants · $75k
- $50k–250k1 grant · $50k
| Recipient | Amount |
|---|---|
| ALLIANCE FOR TOMPOTIKA CONSERVATION | $50,000 |
| PLANNED PARENTHOOD | $25,000 |
| THE CLIMATE CENTER | $25,000 |
| ACLU FOUNDATION | $24,918 |
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 (FY20–21, $4k) 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.
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 +53% since the first grant, against +48% for the ones you funded once.
7 repeat relationships — 3 still active in FY2025, 4 since wound down; 1 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, 80% of grant dollars renewed an existing relationship; $25k 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
- AFALLIANCE FOR TOMPOTIKA CONSERVATION9× · 2017–2025 · $160k · revenue +78%
AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC4× · 2019–2025 · $120k · revenue +49%- TCThe Climate Center2× · 2022–2025 · $55k · revenue +53%
Funded once
NAACP LEGAL DEFENSE & EDUC FUND INCone grant, 2020 · $25k · revenue -54%- OGONE GOAL-BAY AREAone grant, 2020 · $25k
- CFCENTER FOR CLIMATEone grant, 2020 · $25k
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 american civil liberties union of northern california (aclu nc union) defends and advances the principles of freedom, equality and justice contained in the united states constitution. aclu nc union, a california mutual benefit…
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.
A long-term, strategic alliance of labor, community, faith-based, and student organizations working together to build greater economic power for workers and community members through employee rights at work and access to good jobs,…
The open markets institute works to help people relearn how to use competition policy to build stronger democracies, more just and equitable societies, more innovative and sustainable economies, and a more secure and peaceful world.
The Asian Law Caucus's mission is to promote, advance, and represent the legal and civil rights of Asian American Pacific Islander (AAPI) communities, recognizing that social, economic, political and racial inequalities continue to exist…
The american civil liberties union foundation of northern california (aclu nc foundation) defends and advances the principles of freedom, equality and justice contained in the united states constitution. aclu nc foundation, a california…
The Legal Aid Association of California, the statewide membership of legal services nonprofits, serves its members through advocacy and other support in efforts to provide legal assistance to low-income Californians and ensure access to…
See schedule o for detailsthe organization defends the civil liberties enshrined in the us constitution and the bill of rights through litigation, policy advocacy, media advocacy, and organizing. it fights to secure and protect the civil…
CIVIL LIBERTIES DEFENSE CENTER (CLDC) educates the general public about their rights and privileges under the US Constitution and provides free legal support to climate and social justice activists.
For more than five decades, public advocates has challenged the systemic causes of poverty and racial discrimination by strengthening community voices in public policy and achieving tangible legal victories advancing education, housing,…
To support the work of the amercian civil liberties union of louisiana through litigation, public education and limited lobbying in support of civil liberties.
As one of the most enduring civil rights institutions on the West Coast, we work to dismantle systems of oppression and racism, and build an equitable and just society.
For reference, the grantee most central to the portfolio’s shape is Her Justice Inc and the most unlike its peers is Start Soco. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
19 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. 19 of the 25 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 ALLIANCE FOR TOMPOTIKA CONSERVATION ↗
- Who funds AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC ↗
- Who funds The Climate Center ↗
- Who funds SONOMA COUNTY COMMUNITY FOUNDATION ↗
- Who funds LEGAL AID OF SONOMA COUNTY ↗
- Who funds NAACP LEGAL DEFENSE & EDUC FUND INC ↗
- Who funds ACLU FOUNDATION OF SAN DIEGO & IMPERIAL COUNTIES ↗
- Who funds SHINING HOPE FOR COMMUNITIES INC ↗
- Who funds Food Empowerment Project ↗
- Who funds START SOCO ↗
- Who funds GOD'S LOVE WE DELIVER INC ↗
- Who funds Santa Rosa Players DBA 6th Street Playhouse ↗
- Who funds HER JUSTICE INC ↗
- Who funds LEAP INC ↗
- Who funds THE CERES COMMUNITY PROJECT ↗
- Who funds VOTEORG ↗
- Who funds GIVEDIRECTLY INC ↗
- Who funds SOUTHERN POVERTY LAW CENTER INC ↗
- Who funds ANIMAL LEGAL DEFENSE FUND 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: Sonoma County Community Foundation · Vanguard Charitable Endowment Program · Network for Good · The Bank of America Charitable Foundation Inc · American Online Giving Foundation Inc · 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 Casteel 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 Casteel Family Foundation?
Find your warmest path to Casteel 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.