· Private foundation
The Winterburn Foundation
Its FY2025 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 FY2017–2025.
Where the money goes
Your grants by size, and where they go.
| Recipient | Amount |
|---|---|
| INTERNATIONAL RESCUE COMMITTEE | $500,000 |
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.
Dollar for dollar, your grants (FY17–25) land where the poverty rate runs at 17%, against an area that typically sits at 14%. 96% of your 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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +73% since the first grant, against +59% for the ones you funded once.
9 repeat relationships — 1 still active in FY2025, 8 since wound down.
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 FY2025, 100% of grant dollars renewed an existing relationship; $0 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
- IRInternational Rescue Committee INC7× · 2017–2025 · $1.0M · revenue +81%
- TATHE ANIMAL MEDICAL CENTER6× · 2017–2022 · $275k · revenue +77%
- MMMETROPOLITAN MUSEUM OF ART3× · 2018–2020 · $200k · revenue +58%
Funded once
- IOINSTITUTE OF INTERNATIONAL EDUCATION - SCHOLAR RESCUE FUNDone grant, 2018 · $50k
- WCWildlife Conservation Societygraduatedone grant, 2017 · $25k · revenue +59%
- CSCOMMUNITY SERVICE SOCIETY OF NYone grant, 2018 · $10k
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.
Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.
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."
THE MASSACHUSETTS EYE AND EAR INFIRMARY ("THE INFIRMARY") IS A NOT-FOR-PROFIT TEACHING HOSPITAL CONDUCTING PATIENT CARE AND RESEARCH. THE INFIRMARY IS A TEACHING HOSPITAL OF HARVARD MEDICAL SCHOOL AND AN INTERNATIONAL CENTER FOR RESEARCH.…
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 national september 11 memorial & museum at the world trade center bears solemn witness to the terrorist attacks of september 11, 2001, and february 26, 1993. located at a site made sacred through loss, the memorial & museum remembers…
See Form 990, Part I, Line 1, Description of Organization Mission.
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
The museum of the city of new york fosters understanding of the distinctive nature of urban life in the world's most influential metropolis. it engages visitors by celebrating, documenting, and interpreting the city's past, present, and…
The mission of hospital for special surgery is to provide the highest quality patient care, improve mobility, and enhance the quality of life for all and to advance the science of orthopedic surgery, rheumatology, and their related…
MASSACHUSETTS EYE AND EAR ASSOCIATES, INC. ("MEEA") IS A SPECIALTY PHYSICIAN GROUP PRACTICE. IT PROVIDES CARE FOR PATIENTS OF THE MASSACHUSETTS EYE AND EAR INFIRMARY, INC. ("MEEI"), A RELATED ORGANIZATION. THE PRACTICE SPECIALIZES IN…
Apex Art Curatorial Program is a resolutely noncommercial visual art exhibition space which provides curators and artists with a venue dedicated to ideas that are often too provocative or too small in scope for display elsewhere. Apex Art…
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
For reference, the grantee most central to the portfolio’s shape is Visiting Nurse Service of New York and the most unlike its peers is Wildlife Conservation Society. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
10 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. 10 of the 14 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 International Rescue Committee INC ↗
- Who funds INSTITUTE OF INTERNATIONAL EDUCATION INC ↗
- Who funds THE ANIMAL MEDICAL CENTER ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds OPEN SPACE INSTITUTE INC ↗
- Who funds VISITING NURSE SERVICE OF NEW YORK ↗
- Who funds YOUNG CONCERT ARTISTS INC ↗
- Who funds PHELPS MEMORIAL HOSPITAL ASSOCIATION ↗
- Who funds MAYO CLINIC ↗
- Who funds Wildlife Conservation Society ↗
Government reliance of your grantees
Every dot is one organization The Winterburn 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.
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.