· Private foundation
Mathias Lloyd Spiegel Family Foundation Inc
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.
| Recipient | Amount |
|---|---|
| SF FILM | $2,500 |
| CPMC FOUNDATION | $1,000 |
| AMERICAN CONSERVATORY THEATRE | $750 |
| BUCK INSTITUTE FOR RESEARCH ON AGING | $500 |
| HUMANITY PLUS | $500 |
| LIFESPAN RESEARCH INSTITUTE INC | $500 |
| SF PLAYHOUSE | $500 |
| UNIVERSITY OF CALIFORNIA BERKELEY | $500 |
| THE INTERNET ARCHIVE | $500 |
| AMERICAN LONGEVITY ALLIANCE | $465 |
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 (FY22–24, $2k) land where the poverty rate runs at 10%, 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.
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.
13 repeat relationships — 6 still active in FY2024, 7 since wound down; 4 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, 48% of grant dollars renewed an existing relationship; $4k 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
- CPCALIFORNIA PACIFIC MEDICAL CENTER FOUNDATION8× · 2017–2024 · $5k · revenue +32%
- LELIFESPAN EXTENSION ADVOCACY FOUNDATION6× · 2018–2023 · $4k · revenue +20%
- ALAMERICAN LONGEVITY ALLIANCE INC6× · 2018–2024 · $3k · revenue +6% · 100% of their budget
Funded once
- IGIndividual grant recipientone grant, 2017 · $4k
- TLTHE LONG NOW FOUNDATIONgraduatedone grant, 2020 · $2k · revenue +43%
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.
Our mission is to build a unique institute that bridges basic research and drug discovery, and that attracts the best and brightest scientists, physicians and students to work together synergistically to find cures for neglected human…
The organization provides professional investment management services for endowed gifts and financial assets entrusted to the ucsf foundation.
The SFAI Legacy Foundation & Archive (SFAI LF&A) is an independent non-profit formed to protect sustain and carry forward the legacy of the San Francisco Art Institute - a legacy of bold experimental artistic practice and innovative…
To harness the power of the human immune system and advanced computing technologies to create and translate scientific discoveries into next generation vaccines and therapies for prevention, control and cure of chronic diseases, enabling…
The Organizations primary impact is to preserve and enhance San Franciscos unique architectural and cultural identity.
The mission of the Organization is to identify new avenues to serve the art, science, and technology community. The Organization is recognized as a global leader in the interdisciplinary world of art, science, and technology. For over 50…
Advance SF is an organization comprised of SF's leading employers dedicated to supporting an equitable, resilient, and vibrant economy shared by all people working and living in San Francisco through education, advocacy, and research. The…
OpenAIs mission is to ensure that artificial general intelligence benefits all of humanity.
To support the Fromm Institute For Lifelong Learning program at the University of San Francisco.
SF Partnership is an organization comprised of SF's leading employers dedicated to supporting an equitable, resilient, and vibrant economy shared by all people working and living in San Francisco. Through education, advocacy, and research,…
For reference, the grantee most central to the portfolio’s shape is Lifespan Research Institution and the most unlike its peers is Internet Archive. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
13 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. 13 of the 19 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 CALIFORNIA PACIFIC MEDICAL CENTER FOUNDATION ↗
- Who funds LIFESPAN EXTENSION ADVOCACY FOUNDATION ↗
- Who funds AMERICAN CONSERVATORY THEATRE FOUNDATION ↗
- Who funds AMERICAN LONGEVITY ALLIANCE INC ↗
- Who funds San Francisco Film Society ↗
- Who funds San Francisco Playhouse ↗
- Who funds THE LONG NOW FOUNDATION ↗
- Who funds Internet Archive ↗
- Who funds URBAN SCHOOL OF SAN FRANCISCO ↗
- Who funds THE INTERNATIONAL SCHOOL OF SAN FRANCISCO ↗
- Who funds Humanity Plus Inc ↗
- Who funds BUCK INSTITUTE FOR RESEARCH ON AGING ↗
- Who funds Lifespan Research Institution ↗
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 · Silicon Valley Community Foundation · American Endowment Foundation · Charities Aid Foundation America · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · The Blackbaud Giving Fund · National Philanthropic Trust · American Online Giving Foundation Inc · Network for Good · The Bank of America Charitable Foundation 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 Mathias Lloyd Spiegel Family Foundation Inc 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 Mathias Lloyd Spiegel Family Foundation Inc?
Find your warmest path to Mathias Lloyd Spiegel Family Foundation Inc 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.