· Private foundation
Clark and Kathryn Porter Family 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
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 71% of CLARK AND KATHRYN PORTER FAMILY FOUNDATION’s grantee dollars fall outside its nine largest cause areas, whether because the recipient carries no IRS cause code or because its cause sits in the long tail. A chart would be mostly one residual band and misrepresent the portfolio.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k75 grants · $132k
- $10k–50k2 grants · $45k
| Recipient | Amount |
|---|---|
| GARDEN SCHOOL | $30,000 |
| USOCF | $15,000 |
| SEMESTER AT SEA | $5,181 |
| ST MATTHEWS ALUMNI FUND | $5,000 |
| Individual grant recipient | $5,000 |
| WESTSIDE FOOD BANK | $5,000 |
| VENICE FAMILY CLINIC | $5,000 |
| NATURE CONSERVANCY | $5,000 |
| Individual grant recipient | $5,000 |
| NATIONAL PARKS FOUNDATION | $5,000 |
| THE PEOPLES CONCERN | $5,000 |
| ONE TREE PLANTED | $5,000 |
| AMERICAN FRIENDS OF THE OCEAN CLEANUP | $5,000 |
| SPY | $5,000 |
| POW PROTECT OUR WINTERS | $5,000 |
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 (FY19–24, $47k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 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.
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.
73 repeat relationships — 57 still active in FY2024, 16 since wound down; 12 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, 88% of grant dollars renewed an existing relationship; $20k 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
- TPTHE PEOPLE CONCERN6× · 2019–2024 · $30k · revenue +696%
- WFWESTSIDE FOOD BANK5× · 2020–2024 · $28k · revenue +127%
- NPNATIONAL PARK FOUNDATION5× · 2020–2024 · $25k · revenue +208%
Funded once
- IGIndividual grant recipientone grant, 2023 · $25k
- CHChildren's Hospital Los Angelesone grant, 2022 · $8k · revenue +23%
- POPARISH OF ST MATTHEWone grant, 2019 · $6k
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.
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.
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
To distribute public affairs and other educational information in order to create an electronic bridge between californians and their public officials, and, in the process educate a new generation of voting citizens and civic leaders who…
The Television Academy is dedicated to celebrating excellence, innovation and the advancement of the telecommunications arts and sciences through recognition, education and leadership, while fostering a diverse, inclusive and accessible…
The foundation's mission is to improve the oral health of all californians by supporting the dental profession and its efforts to meet community needs.
The mission of the uc davis foundation is to secure, steward and manage private gifts for uc davis.
The uc santa barbara foundation actively works to further the goals of the university of california, santa barbara. the foundation seeks to maintain and nurture the university's quality and distinction. on behalf of the campus, the…
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…
The organization is a non-partisan, membership based speakers' forum that connects business leaders, community members, and engaged individuals with shared interest in local, national, and global affairs. it provides an open and accessible…
The organization aims to benefit the residents of the united states through the planning, promotion and staging of the xxxiv olympiad and the xviii paralympic games.
Chamber's mission: design and advance opportunities and solutions for a thriving regional economy that are inclusive and globally competitive. 1) advocacy - be a bold advocate for business as a driver of a strong economy that enables…
For reference, the grantee most central to the portfolio’s shape is Safe Place for Youth Inc and the most unlike its peers is Klm 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 39 years old; the field is 14. You back the established end — and your money leans older still.
The field is 24% startups (under 5 years old) — 2% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.0% 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.
45 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. 45 of the 128 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 THE PEOPLE CONCERN ↗
- Who funds WESTSIDE FOOD BANK ↗
- Who funds NATIONAL PARK FOUNDATION ↗
- Who funds VENICE FAMILY CLINIC ↗
- Who funds SAFE PLACE FOR YOUTH INC ↗
- Who funds INSTITUTE FOR SHIPBOARD EDUCATION ↗
- Who funds ONE TREE PLANTED INC ↗
- Who funds CENTER THEATRE GROUP OF LOS ANGELES ↗
- Who funds Children's Hospital Los Angeles ↗
- Who funds EQUAL JUSTICE INITIATIVE ↗
- Who funds AMERICAN FRIENDS OF THE OCEAN CLEANUP FOUNDATION ↗
- Who funds HEAL THE BAY ↗
- Who funds DIRECT RELIEF ↗
- Who funds SANTA MONICA BAY RESTORATION FOUNDATION ↗
- Who funds THE NATURE CONSERVANCY ↗
- Who funds PIH Health Good Samaritan Hospital ↗
- Who funds ARMAND HAMMER MUSEUM OF ART AND CULTURAL CENTER INC ↗
- Who funds SPECIAL OLYMPICS INC ↗
- Who funds BANDERAS BAY CHARITIES INC ↗
- Who funds JUNIOR LEAGUE OF LOS ANGELES 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: California Community Foundation · The Rose Hills Foundation · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · The Pfizer Foundation Inc · American Endowment Foundation · The Blackbaud Giving Fund · Charities Aid Foundation America · Vanguard Charitable Endowment Program · The Bank of America Charitable Foundation Inc · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc
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 Clark and Kathryn Porter 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.
- Wellesley College — 1% 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.
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Find your warmest path to Clark and Kathryn Porter 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.