· Private foundation
The Maxwellhanrahan 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 FY2019–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2022
- Under $10k48 grants · $43k
- $10k–50k97 grants · $1.2M
- $50k–250k15 grants · $1.6M
- $250k+4 grants · $1.7M
| Recipient | Amount |
|---|---|
| UNITED STATES ARTISTS INC | $696,900 |
| RHODE ISLAND SCHOOL OF DESIGN | $500,000 |
| NATIONAL GEOGRAPHIC SOCIETY | $300,000 |
| SF BOTANICAL GARDEN SOCIETY AT STRYBING ARBORETUM | $250,000 |
| RHODE ISLAND SCHOOL OF DESIGN | $200,000 |
| CALIFORNIA INSTITUTE OF THE ARTS | $200,000 |
| PENINSULA OPEN SPACE TRUST | $150,000 |
| PHILANTHROPIC VENTURES FOUNDATION | $130,000 |
| Individual grant recipient | $100,000 |
| TRUST FOR PUBLIC LAND | $100,000 |
| Individual grant recipient | $100,000 |
| SONOMA LAND TRUST | $100,000 |
| Individual grant recipient | $100,000 |
| NATURE CONSERVANCY - CALIFORNIA CHAPTER | $100,000 |
| Individual grant recipient | $100,000 |
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 (FY21–22, $33k) land where the poverty rate runs at 11%, 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.
63 repeat relationships — 63 still active in FY2022, 0 since wound down; 75 grantees were first funded in FY2022 (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 FY2022, 65% of grant dollars renewed an existing relationship; $1.5M 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
RHODE ISLAND SCHOOL OF DESIGN2× · 2019–2022 · $750k · revenue +8%- NGNATIONAL GEOGRAPHIC SOCIETY3× · 2020–2022 · $320k · revenue +197%
- USUC SAN DIEGO FOUNDATION3× · 2020–2022 · $280k · revenue +61%
Funded once
- IGIndividual grant recipientone grant, 2020 · $100k
- IGIndividual grant recipientone grant, 2020 · $100k
- IGIndividual grant recipientone grant, 2020 · $100k
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.
Create and publish educational materials, conduct professional development, promote awareness, and sponsor research on the spectacular biological diversity of the State of CA.
The aquarium of the pacific's mission is to instill a sense of wonder, respect, and stewardship for the pacific ocean, its inhabitants, and ecosystems.
The foundation works with diverse groups representing many interests to acquire and restore critical wildlife habitat and protecting species
The institute is dedicated to scientific research, the results of which are used to promote public awareness and education in the areas of conservation biology and ecology,including the wise use of natural resources.
The San Francisco Bay Bird Observatory is dedicated to the conservation of birds and their habitats through science and outreach.
California ocean science trust (ost) is a non-profit organization dedicated to accelerating progress towards a healthy and productive ocean future for california. created by state legislation, ost bridges the gap between cutting-edge…
Sustainable Conservation advances the collaborative stewardship of Californias land, air, and water for the benefit of nature and people. For over three decades, Sustainable Conservation has built coalitions of people with different…
Conserving nature through science and discovery.
Ci works to spotlight and secure the critical benefits that nature provides to humanity.
Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.
To connect all people with wildlife, inspire caring for nature, and advance conservation action.
For reference, the grantee most central to the portfolio’s shape is Missouri Botanical Garden Board of Trustees and the most unlike its peers is Tenderloin Tessie Holiday Dinners. 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 46 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) — 1% 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.
137 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. 137 of the 168 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 United States Artists Inc ↗
- Who funds RHODE ISLAND SCHOOL OF DESIGN ↗
- Who funds NATIONAL GEOGRAPHIC SOCIETY ↗
- Who funds PHILANTHROPIC VENTURES FOUNDATION ↗
- Who funds UC SAN DIEGO FOUNDATION ↗
- Who funds PENINSULA OPEN SPACE TRUST ↗
- Who funds SAN FRANCISCO BOTANICAL GARDEN SOCIETY AT STRYBING ARBORETUM ↗
- Who funds CALIFORNIA INSTITUTE OF THE ARTS ↗
- Who funds CALIFORNIA ACADEMY OF SCIENCES ↗
- Who funds THE TRUST FOR PUBLIC LAND ↗
- Who funds SONOMA LAND TRUST ↗
- Who funds THE NATURE CONSERVANCY ↗
- Who funds WILLAMETTE UNIVERSITY ↗
- Who funds MONTEREY BAY AQUARIUM FOUNDATION ↗
- Who funds POINT REYES BIRD OBSERVATORY ↗
- Who funds POLYNESIAN VOYAGING SOCIETY ↗
- Who funds TRUST FOR HIDDEN VILLA ↗
- Who funds THE CORAL REEF ALLIANCE ↗
- Who funds ENVIRONMENTAL GRANTMAKERS ASSOCIATION ↗
- Who funds American Museum of Natural History ↗
- Who funds COMMUNITY INITIATIVES ↗
- Who funds SOCIAL GOOD FUND INC ↗
- Who funds UNIVERSITY OF HAWAII FOUNDATION ↗
- Who funds YOUNG MEN'S CHRISTIAN ASSOCIATION OF SAN FRANCISCO ↗
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: Fort Mason Center · Gordon E and Betty I Moore Foundation · The San Francisco Foundation · Marin Community Foundation · Windgate Charitable Foundation Inc · Humboldt Area Foundation · The Andrew W Mellon Foundation · Resources Legacy Fund · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · Silicon Valley Community Foundation · The Nature Conservancy · The William & Flora Hewlett 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 Maxwellhanrahan 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.
- Marine Biological Laboratory — 20% of income from government
- The Society of Arts and Crafts — 10% of income from government
- Archbold Expeditions Inc — 9% of income from government
- Mote Marine Laboratory Inc — 4% of income from government
- Willamette University — 1% of income from government
- Native Arts and Cultures Foundation Inc — 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.