· Private foundation
The Arzak Foundation Ms Susan R Shapiro
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 $10k26 grants · $52k
- $10k–50k5 grants · $84k
- $50k–250k1 grant · $75k
| Recipient | Amount |
|---|---|
| LOS ANGELES OPERA | $75,000 |
| THE HUNTINGTON LIBRARY | $25,000 |
| LIBRARY OF CONGRESS | $25,000 |
| TEMPLE AKIBA | $14,200 |
| NANTUCKET CONSERVATION FOUNDATION | $10,000 |
| NANTUCKET COMMUNITY SAILING | $10,000 |
| TEMPLE ISRAEL OF HOLLYWOOD | $7,200 |
| AMERICAN JEWISH COMMITTEE | $6,000 |
| AMERICAN JEWISH WORLD SERVICE | $5,000 |
| PLANNED PARENTHOOD | $4,600 |
| MAZON | $4,500 |
| ACLU FOUNDATION | $3,500 |
| NANTUCKET COTTAGE HOSPITAL | $3,500 |
| JEWISH FEDERATION OF GREATER LOS ANGELES | $3,000 |
| IEEE FOUNDATION | $2,500 |
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 (FY17–24, $29k) land where the poverty rate runs at 13%, against an area that typically sits at 10%. 87% 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 +58% since the first grant, against +35% for the ones you funded once.
83 repeat relationships — 26 still active in FY2024, 57 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, 95% of grant dollars renewed an existing relationship; $9k 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
- HEHENRY E HUNTINGTON LIBRARY AND ART GALLERY8× · 2017–2024 · $2.9M · revenue +99%
MASSACHUSETTS HISTORICAL SOCIETY5× · 2017–2021 · $176k · revenue +364%
BOSTON LYRIC OPERA COMPANY5× · 2017–2021 · $108k · revenue +94%
Funded once
- TLTHE LIBRARIAN OF CONGRESSone grant, 2020 · $25k
- MMITone grant, 2020 · $20k
- PMPUBLIC MEDIA GROUP OF SOUTHERN CALIFORNIAone grant, 2021 · $15k · revenue +17%
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 bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
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.
The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.
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.
The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."
Undergraduate, graduate, and professional education and research across a broad array of academic domains.
The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…
Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…
Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…
The mission of rhode island school of design, through its college and museum,is to educate its students and the public in the creation and (see schedule o)appreciation of works of art and design, to discover and transmit knowledge and to…
For reference, the grantee most central to the portfolio’s shape is Facing History & Ourselves Inc and the most unlike its peers is The Linda Loring Nature Foundation Inc. 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 45 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) — 3% 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.
72 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. 72 of the 130 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 HENRY E HUNTINGTON LIBRARY AND ART GALLERY ↗
- Who funds MASSACHUSETTS HISTORICAL SOCIETY ↗
- Who funds BOSTON LYRIC OPERA COMPANY ↗
- Who funds NANTUCKET CONSERVATION FOUNDATION INC ↗
- Who funds NANTUCKET HISTORICAL ASSOCIATION ↗
- Who funds Institute of Electrical and Electronics Engineers Inc ↗
- Who funds WGBH Educational Foundation ↗
- Who funds CONSUMER TECHNOLOGY ASSOCIATION FOUNDATION ↗
- Who funds Combined Jewish Philanthropies of Greater Boston Inc ↗
- Who funds AMERICAN JEWISH WORLD SERVICE INC ↗
- Who funds THE SKATING CLUB OF BOSTON ↗
- Who funds NANTUCKET COMMUNITY SAILING INC ↗
- Who funds PUBLIC MEDIA GROUP OF SOUTHERN CALIFORNIA ↗
- Who funds MASSACHUSETTS EYE & EAR INFIRMARY ↗
- Who funds HARVARD-WESTLAKE SCHOOL ↗
- Who funds INDIAN LAW RESOURCE CENTER ↗
- Who funds JEWISH FAMILY AND CHILDREN'S SERVICES ↗
- Who funds NEW ISRAEL FUND ↗
- Who funds The United States Holocaust Memorial Museum ↗
- Who funds GOOD PLUS FOUNDATION 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: Boston Foundation Inc · Community Foundation for Nantucket Inc · Knox Foundation · King Spruce Company · Ernst & Elfriede Frank Foundation Inc · The George & Marie Chabot Charitable Foundation · Gilbert Verney Foundation · Nantucket Golf Club Foundation Inc · Carverdelaney Families Foundation Inc · Cape Cod Five Cents Savings Bank Charitable Foundation Trust · The Bessemer Giving Fund · Combined Jewish Philanthropies of Greater Boston 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 The Arzak Foundation Ms Susan R Shapiro 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.
- Hias Inc — 88% of income from government
- Massachusetts Historical Society — 22% of income from government
- Nantucket Maria Mitchell Association in — 9% of income from government
- Whitehead Institute for Biomedical Research — 7% of income from government
- Dana-Farber Cancer Institute Inc — 7% of income from government
- Beth Israel Deaconess Medical Center Inc — 6% of income from government
- Nantucket Dreamland Foundation Inc — 4% of income from government
- Nantucket Conservation Foundation Inc — 4% of income from government
- Boston Lyric Opera Company — 3% of income from government
- The Trustees of Reservations — 2% of income from government
- Wgbh Educational Foundation — 1% of income from government
- Nantucket Historical Association — 1% of income from government
- Institute of Electrical and Electronics Engineers Inc — 1% of income from government
- Proprietors of the Boston Athenaeum — 0% of income from government
- Museum of Fine Arts — 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 Arzak Foundation Ms Susan R Shapiro?
Find your warmest path to The Arzak Foundation Ms Susan R Shapiro 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.