· Private foundation
Porter E & Helenmae Thompson Foundation
Its FY2023 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
Read this first · the figures below need context
100% of Porter E & Helenmae Thompson Foundation’s FY2023 grant dollars went to Greater Horizons, not to grantees.
Its money now reaches organizations through that sponsor, which does not report who recommended each grant. FY2023 names 0 organizations directly, so a portfolio cannot be read from it. Everything below is therefore FY2021, the last year Porter E & Helenmae Thompson Foundation named its own grantees at scale: 16 organizations, $237k. It is dated, not current.
Organizations named directly on the return
Amber years are those where most dollars went to a sponsor.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2023.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2021
- Under $10k9 grants · $73k
- $10k–50k11 grants · $164k
| Recipient | Amount |
|---|---|
| ST ANTHONY'S FOUNDATION | $22,000 |
| BERKELEY FOUNDATION | $17,000 |
| FOUNDATION FOR NUEROLOGIC DISEASES | $17,000 |
| ALZHEIMER'S ASSOCIATION | $17,000 |
| DOCTORS WITHOUT BORDERS | $17,000 |
| QUEEN OF THE VALLEY HOSPITAL FOUNDATION | $16,000 |
| ALDEA INC | $14,000 |
| ARMY EMERGENCY RELIEF | $12,000 |
| CURE ALZHEIMERS FUND | $12,000 |
| GALAPAGOS CONSERVANCY | $10,000 |
| HIGH DESERT MUSEUM | $10,000 |
| BOSTON COLLEGE | $9,000 |
| SPECIAL OLYMPICS | $8,000 |
| HOSPICE OF THE EAST BAY | $8,000 |
| GREENBELT ALLIANCE | $8,000 |
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 (FY17–21, $169k) 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.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +70% since the first grant, against +43% for the ones you funded once.
23 repeat relationships — 19 still active in FY2021, 4 since wound down. Read against FY2021, the last year this funder named its own grantees directly; its giving has since run through a sponsor, which reports no donor behind each grant.
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 FY2021, 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
- FFFoundation for Neurologic Diseases Inc5× · 2017–2021 · $76k · revenue +412%
MEDECINS SANS FRONTIERES USA INC5× · 2017–2021 · $76k · revenue +98%- AIALDEA INC5× · 2017–2021 · $61k · revenue +33%
Funded once
- RHREGIONS HOSPITALgraduatedone grant, 2017 · $14k · revenue +43%
- COCity of Oakland OPRYDone grant, 2020 · $9k
- DSDESERT SAGE SOCIETYone grant, 2018 · $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.
To eliminate disparities in health care access and outcomes by providing superior quality health and human services through an integrated world-class delivery system for latino, multi-ethnic underserved communities in southern california.
The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.
MISSION STATEMENT: MISSION: CARING FOR OUR PATIENTS FIRST AND OUR PEOPLE ALWAYS. VISION: TO BE THE MOST COMPREHENSIVE, INTEGRATED AND CONNECTED HEALTH SYSTEM FOR GETTING AND STAYING WELL. VALUES: EXCELLENCE - We deliver high-quality,…
Assist banner health complete its mission to make health care easier so life can be better by providing integrated & coordinated care & population health management.
As the parent entity of a blended health organization, highmark health seeks to improve the health and well-being of the people and communities it serves by providing affordable, accessible and high-quality healthcare.
The organization provides professional investment management services for endowed gifts and financial assets entrusted to the ucsf foundation.
Improve the health of every person in our community through the efficient delivery of excellent, innovative and compassionate care.
The Academy's mission is to enhance member career fulfillment and promote brain health for all.
Mass general brigham health plan's mission is to promote the health and wellness of our members, and to help ensure equitable, affordbale health care for the diverse communities we serve.
Mission statement: mission: caring for our patients first and our people always. vision: to be the most comprehensive, integrated and connected health system for getting and staying well. values: excellence - we deliver high-quality,…
Non-profit research institute to advance a systems (or holistic and cross-disciplinary) approach to science; personalized medicine; global health & environmental sustainability; science education; & the pioneering & invention of biological…
Established in 2006, the banner alzheimer's foundation (baf) secures and stewards charitable gifts to advance the mission of banner alzheimer's institute (bai), including groundbreaking research initiatives and pioneering prevention…
For reference, the grantee most central to the portfolio’s shape is By the Bay Health and the most unlike its peers is Foundation for Neurologic Diseases Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 44 years old; the field is 24. You back the established end — and your money leans older still.
The field is 18% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 12% 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.
20 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. 20 of the 28 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 Greater Horizons ↗
- Who funds Foundation for Neurologic Diseases Inc ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds QUEEN OF THE VALLEY MEDICAL CENTER FOUNDATION ↗
- Who funds ALDEA INC ↗
- Who funds ARMY EMERGENCY RELIEF ↗
- Who funds ALZHEIMER'S DISEASE RESEARCH FOUNDATION ↗
- Who funds GALAPAGOS CONSERVANCY INC ↗
- Who funds TRUSTEES OF BOSTON COLLEGE ↗
- Who funds HABITAT FOR HUMANITY EAST BAY SILICON VALLEY ↗
- Who funds EAST BAY INTEGRATED CARE INC ↗
- Who funds THE NATURE CONSERVANCY ↗
- Who funds BY THE BAY HEALTH ↗
- Who funds GREENBELT ALLIANCEPEOPLE FOR OPEN SPACE ↗
- Who funds GUIDE DOGS FOR THE BLIND INC ↗
- Who funds Mount St Joseph-St Elizabeth ↗
- Who funds HIGH DESERT MUSEUM ↗
- Who funds REGIONS HOSPITAL ↗
- Who funds FIRST GRADUATE ↗
- Who funds Learning Ally 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: Marin Community Foundation · The San Francisco Foundation · McNabb Foundation · Morgan Stanley Global Impact Funding Trust Inc · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · East Bay Community Foundation · American Endowment Foundation · California Community Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Vanguard Charitable Endowment Program · The Blackbaud Giving Fund · National Philanthropic Trust
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 Porter E & Helenmae Thompson 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, a single department, or state — and drag the year to watch it move.
- High Desert Museum — 11% of income from government
- Learning Ally Inc — 4% of income from government
- Trustees of Boston College — 3% 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.