· Private foundation
The May Foundation Trust
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 $10k14 grants · $45k
- $10k–50k5 grants · $111k
| Recipient | Amount |
|---|---|
| WILDLIFE RESCUE OF NAPA VALLEY | $31,000 |
| SUNRISE HORSE RESCUE | $30,000 |
| THE RESOURCE FOUNDATION | $30,000 |
| VENTANA WILDLIFE SOCIETY | $10,000 |
| MUTTVILLE SENIOR DOG RESCUE | $10,000 |
| HUMAN RIGHTS CAMPAIGN | $5,000 |
| NATIONAL CENTER FOR LESBIAN RIGHTS | $5,000 |
| NATIVE SONGBIRD CARE & CONSERVATION | $5,000 |
| PLANNED PARENTHOOD FEDERATION OF AM | $5,000 |
| NAPA COMMUNITY ANIMAL RESPONSE TEAM | $5,000 |
| THE HUMANE LEAGUE | $4,000 |
| GOOD FOOD INSTITUTE | $4,000 |
| SIERRA CLUB FOUNDATION | $2,000 |
| DOCTORS WITHOUT BORDERS | $2,000 |
| ABORTION CARE NETWORK | $2,000 |
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 (FY20–21, $14k) land where the poverty rate runs at 9%, against an area that typically sits at 11%. 0% 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.
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 +40% since the first grant, against +13% for the ones you funded once.
20 repeat relationships — 17 still active in FY2024, 3 since wound down; 1 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, 99% of grant dollars renewed an existing relationship; $1k 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
- SHSUNRISE HORSE RESCUE6× · 2019–2024 · $108k · revenue +160%
- VWVENTANA WILDLIFE SOCIETY7× · 2017–2024 · $50k · revenue +9%
MEDECINS SANS FRONTIERES USA INC7× · 2017–2024 · $29k · revenue +98%
Funded once
- NVNAPA VALLEY COOMUNITY FOUNDATIONone grant, 2017 · $25k
- IGIndividual grant recipientone grant, 2020 · $15k
- NVNAPA VALLEY COMMUNITY FDN-COVID 19one grant, 2020 · $5k
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 SPCA Monterey County's Mission is assuring compassionate treatment of all animals through rescue, rehabilitation, protection and education. The SPCA shelters homeless, neglected, and abused pets, including dogs, cats, horses, exotic…
The Nonhuman Rights Project (NhRP) is the only civil rights organization in The United States dedicated solely to securing fundamental rights for nonhuman animals and the leading force in building a national and global nonhuman rights…
Every farmer and rancher participating in the Certified Humane program had to modify their operations to meet the Animal Care Standards and be certified. Schedule O
Humane World for Animals, Inc., formerly known as the Humane Society of the United States (The Organization), seeks to tackle the root causes of animal cruelty and suffering. CONTINUED ON SCHEDULE O
Protection of animal rights
To improve the health & well-being of animals through veterinary aid, response, training, research & local capacity building worldwide. We provide services to companion animals, horses, street dogs, livestock and marine animals including…
To protect animals by creating systemic change resulting in the humane treatment of all animals. we create policies, infrastructure, and services that protect animals and strengthen our communities, and we design and implement humane and…
To ensure every companion animal has access to quality medical care, compassionate shelter, and a loving home.
Animal outlook is a national animal protection organization working to end the abuse of farmed animals using a variety of strategies, including investigations, legal advocacy, corporate and food system reform, and vegan outreach.
Planned Parenthood Northern California generates healthier communities through the delivery of quality sexual and reproductive health care services.
To bring animals out of crisis and strengthen the bond between people and animals through emergency sheltering, disaster relief services, financial assistance and education. redrover accomplishes its mission by engaging volunteers and…
For reference, the grantee most central to the portfolio’s shape is North Valley Community Foundation and the most unlike its peers is Humane World for Animals International. 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 31 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) — 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 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.
28 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. 28 of the 43 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 RESOURCE FOUNDATION INC ↗
- Who funds SUNRISE HORSE RESCUE ↗
- Who funds VENTANA WILDLIFE SOCIETY ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds COMMUNITY FOUNDATION OF THE NAPA VALLEY ↗
- Who funds NAPA COMMUNITY ANIMAL RESPONSE TEAM ↗
- Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
- Who funds NATIVE SONGBIRD CARE & CONSERVATION ↗
- Who funds NATIONAL CENTER FOR LGBTQ RIGHTS FKA NATIONAL CENTER FOR LESBIAN RIGHTS ↗
- Who funds HUMAN RIGHTS CAMPAIGN INC ↗
- Who funds SIERRA CLUB FOUNDATION ↗
- Who funds THE HUMANE LEAGUE ↗
- Who funds THE GOOD FOOD INSTITUTE INC ↗
- Who funds COMMUNITY ACTION OF NAPA VALLEY ↗
- Who funds PARTNERS IN HEALTH A NONPROFIT CORPORATION ↗
- Who funds VINE VILLAGE INC ↗
- Who funds ENVIRONMENTAL DEFENSE FUND INCORPORATED ↗
- Who funds Puertas Abiertas Community Resource Center ↗
- Who funds ABORTION CARE NETWORK ↗
- Who funds JTP PROFESSIONAL SERVICE CORPORATION ↗
- Who funds Feeding America ↗
- Who funds Jameson Animal Rescue Ranch ↗
- Who funds NORTH VALLEY ANIMAL DISASTER GROUP ↗
- Who funds NORTH VALLEY COMMUNITY FOUNDATION ↗
- Who funds WIMBERLEY ADOPTION GROUP AND RESCUE CORPORATION ↗
- Who funds Humane World for Animals International ↗
- Who funds MOLLYS ANGELS ↗
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 · Peter a & Vernice H Gasser Foundation · Community Foundation of the Napa Valley · Silicon Valley Community Foundation · Network for Good · National Philanthropic Trust · American Online Giving Foundation Inc · American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc · Donor Advised Charitable Giving Inc · Vanguard Charitable Endowment Program · 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 May Foundation Trust 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.
- Partners in Health a Nonprofit Corporation — 0% 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.
Warm introductions · Powered by PlinthPlus
How do I get to The May Foundation Trust?
Find your warmest path to The May Foundation Trust 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.