· Private foundation
Stephen Dellapietra and Pamela Hurst- Dellapietra 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 clustered by its grantee’s IRS cause code (NTEE), by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k3 grants · $4k
- $10k–50k1 grant · $25k
- $50k–250k4 grants · $575k
- $250k+5 grants · $3.5M
| Recipient | Amount |
|---|---|
| COLD SPRING HARBOR LABORATORY | $1,150,000 |
| STONY BROOK FOUNDATION INC | $1,000,000 |
| CHILDREN AND SCREENS THE INSTITUTE OF DIGITAL MEDIA AND CHILD DEVELOPMENT | $750,000 |
| BERKLEE COLLEGE OF MUSIC INC | $295,000 |
| HARVARD UNIVERSITY | $260,000 |
| MEMORIAL SLOAN KETTERING CANCER | $200,000 |
| PIVOT | $150,000 |
| SIMONS LAUFER MATHEMATICAL SCIENCES | $115,000 |
| PRINCETON UNIVERSITY | $110,000 |
| FRIENDS OF SCIENCE EAST DBA TESLA SCIENCE CENTER AT WARDENCLYFFE | $25,000 |
| THE PUBLIC THEATER | $3,000 |
| SEREOLIPI NOMADIC EDUCATION FOUNDATION | $500 |
| PLANNED PARENTHOOD | $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.
Dollar for dollar, your grants (FY17–24) land where the poverty rate runs at 9%, against an area that typically sits at 9%. 42% of your dollars go to grantees based in above-average-need neighborhoods. Your grants spread fairly evenly across need levels.
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.
15 repeat relationships — 9 still active in FY2024, 6 since wound down; 3 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, 92% of grant dollars renewed an existing relationship; $321k 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
- CSCOLD SPRING HARBOR LABORATORY7× · 2017–2024 · $2.6M · revenue +9%
The Trustees of Princeton University7× · 2017–2024 · $2.3M · revenue +5%- SBSTONY BROOK FOUNDATION INC6× · 2017–2024 · $2.2M · revenue +224%
Funded once
- TSTHE SCIENCE FESTIVAL FOUNDATIONone grant, 2017 · $53k
- AKAL KHWARIZMI NOETHER INSTITUTEone grant, 2017 · $38k
AMERICAN NEAR EAST REFUGEE AIDgraduatedone grant, 2020 · $30k · revenue +76%
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 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.
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."
To educate students to be ethical and socially responsible leaders in a global community.
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.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
The peterson institute for international economics (piie) is an independent nonprofit, nonpartisan research organization dedicated to strengthening prosperity and human welfare in the global economy through expert analysis and practical…
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…
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,…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
For reference, the grantee most central to the portfolio’s shape is World Science Foundation and the most unlike its peers is Sigmacamp 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 29 years old; the field is 18. You back the established end — and your money leans older still.
The field is 19% 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 10% 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.
35 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. 35 of the 51 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 COLD SPRING HARBOR LABORATORY ↗
- Who funds The Trustees of Princeton University ↗
- Who funds STONY BROOK FOUNDATION INC ↗
- Who funds PIVOT WORKS INC ↗
- Who funds SIMONS LAUFER MATHEMATICAL SCIENCES INSTITUTE ↗
- Who funds BERKLEE COLLEGE OF MUSIC INC ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds WORLD SCIENCE FOUNDATION ↗
- Who funds NATIONAL MUSEUM OF MATHEMATICS ↗
- Who funds INSTITUTE FOR ADVANCED STUDY - LOUIS BAMBERGER & MRS FELIX FULD FOUNDATION ↗
- Who funds AMERICAN NEAR EAST REFUGEE AID ↗
- Who funds NATIONAL ACADEMY OF SCIENCES ↗
- Who funds SARASOTA MEMORIAL HEALTHCARE FOUNDATION INC ↗
- Who funds Ronald McDonald House Charities New York Metro Inc ↗
- Who funds Center for Humane Technology ↗
- Who funds NEW YORK SHAKESPEARE FESTIVAL ↗
- Who funds LI YOUTH DEVELOPMENT INC ↗
- Who funds THE BRONX COMMUNITY FOUNDATION INC ↗
- Who funds SIGMACAMP INC ↗
- Who funds STAGES ST LOUIS ↗
- Who funds THE WARD MELVILLE HERITAGE ORGANIZATION LTD ↗
- Who funds UNIQUE PROJECTS INC ↗
- Who funds SEREOLIPI NOMADIC EDUCATION FOUNDATION INC ↗
- Who funds CEREBRAL PALSY FOUNDATION INC ↗
- Who funds CITY PARKS FOUNDATION INC ↗
- Who funds MAGICAL MUSIC FOR LIFE 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: Jewish Communal Fund · The Allen & Eve Foundation Inc · The Pittman Family Foundation · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · The Ford Foundation · The Goldman Sachs Charitable Gift Fund · National Philanthropic Trust · The San Francisco Foundation · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · Silicon Valley Community Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management 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 Stephen Dellapietra and Pamela Hurst- Dellapietra 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, a single department, or state — and drag the year to watch it move.
- The Trustees of Princeton University — 11% of income from government
- Institute for Advanced Study - Louis Bamberger & Mrs Felix Fuld Foundation — 7% of income from government
- President and Fellows of Harvard College — 7% of income from government
- Berklee College of Music 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.
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How do I get to Stephen Dellapietra and Pamela Hurst- Dellapietra Family Foundation Inc?
Find your warmest path to Stephen Dellapietra and Pamela Hurst- Dellapietra 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.