· Private foundation
The Sosnow Foundation Inc
Its FY2023 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 FY2017–2023.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2023
- Under $10k37 grants · $57k
- $10k–50k7 grants · $97k
- $50k–250k3 grants · $200k
| Recipient | Amount |
|---|---|
| THE SOCIETY OF THE FOUR ARTS | $100,000 |
| PALM BEACH SYNAGOGUE | $50,000 |
| SOLOMON LEADERSHIP PROGRAM | $50,000 |
| NORTON MUSEUM OF ART | $25,000 |
| STONY BROOK FOUNDATION INC | $15,000 |
| MORSE LIFE | $13,000 |
| METROPOLITAN MUSEUM OF ART | $12,500 |
| JEWISH FEDERATION OF PALM BEACH | $11,000 |
| PALM BEACH ATLANTIC UNIVERSITY INC | $10,000 |
| IF FOUNDATION | $10,000 |
| KRAVIS CENTER | $9,850 |
| HENRY STREET SETTLEMENT | $5,000 |
| PLANNED PARENTHOOD OF SE FL | $5,000 |
| MILLBROOK SCHOOL ANNUAL FUND | $4,700 |
| SOLOMON INSTITUTE INC | $4,000 |
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 (FY17–23, $38k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 67% 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 — 35 still active in FY2023, 28 since wound down; 11 grantees were first funded in FY2023 (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 FY2023, 90% of grant dollars renewed an existing relationship; $33k 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
NORTON MUSEUM OF ART INC5× · 2017–2023 · $786k · revenue +91%- TSThe Society of the Four Arts Inc2× · 2020–2023 · $125k · revenue ×11
- RFRAYMOND F KRAVIS CENTER FOR THE PERFORMING ARTS INC6× · 2017–2023 · $67k · revenue +72%
Funded once
- SRSOLOMON R GUGGENHEIM FOUNDATIONgraduatedone grant, 2017 · $10k · revenue +43%
- TITHE IOVINO FOUNDATIONone grant, 2022 · $10k
- CACHABAD AT THE CIVIC CENTERone grant, 2021 · $5k
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 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 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…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Committed to exceptional healthcare quality for all and actively engaged with our community, einstein drives scientific discovery and educates compassionate leaders in health and science.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
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.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
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…
See schedule othe organization is a not-for-profit, public charity established in 1911 to provide for the quality and continuity of jewish life in western new york and around the world through private philanthropy. the foundation seeks,…
For reference, the grantee most central to the portfolio’s shape is Jewish Federation of Palm Beach County Inc and the most unlike its peers is Greystone Foundation. 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 12. You back the established end — and your money leans older still.
The field is 27% 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 17% 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.
75 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. 75 of the 126 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 NORTON MUSEUM OF ART INC ↗
- Who funds JEWISH FEDERATION OF PALM BEACH COUNTY INC ↗
- Who funds The Society of the Four Arts Inc ↗
- Who funds RAYMOND F KRAVIS CENTER FOR THE PERFORMING ARTS INC ↗
- Who funds ATLANTIC GOLF CLUB EDUCATIONAL FUND INC ↗
- Who funds THE RED OAKS SCHOOL INC ↗
- Who funds PALM BEACH ATLANTIC UNIVERSITY INC ↗
- Who funds THE NEW CANAAN COUNTRY SCHOOL INCORPORATED ↗
- Who funds HENRY STREET SETTLEMENT ↗
- Who funds COLORADO MAHLERFEST ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds STONY BROOK FOUNDATION INC ↗
- Who funds PALM BEACH COUNTRY CLUB INC ↗
- Who funds BAY AREA LYME FOUNDATION ↗
- Who funds SOLOMON R GUGGENHEIM FOUNDATION ↗
- Who funds HEBREW WIZARDS INC ↗
- Who funds AT HOME IN DARIENINC ↗
- Who funds Town of Palm Beach United Way Inc ↗
- Who funds American Friends of Israel Philharmonic Orchestra ↗
- Who funds THE COMMUNITY FUND OF DARIEN ↗
- Who funds MORRISTOWN-BEARD SCHOOL ↗
- Who funds COLUMBUS CITIZENS FOUNDATION INC ↗
- Who funds WINNEBAGO ALUMNI ASSOCIATION INC ↗
- Who funds SOLOMON INSTITUTE 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: Fairfield County's Community Foundation Inc · Jewish Communal Fund · The Goodnow Fund · The Darien Foundation Inc · The Darrell Harvey Family Foundation Inc · The Edward E Hood Jr Foundation · The Goldman Sachs Charitable Gift Fund · Mutual of America Foundation · Select Equity Group Foundation · Ibm International Foundation · Riley Family Foundation · Alexandra 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 Sosnow 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.
- Hias Inc — 88% of income from government
- Children's Learning Centers of Fairfield County Inc — 36% of income from government
- Aspetuck Land Trust — 28% of income from government
- Boys & Girls Club of Stamford Inc — 17% of income from government
- The Community Fund of Darien — 9% of income from government
- Pillar Care Continuum — 1% of income from government
- The Armory Art Center Inc — 0% of income from government
- Darien Nature Center Inc — 0% of income from government
- Palm Beach Atlantic University Inc — 0% of income from government
- Morristown-Beard School — 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 Sosnow Foundation Inc?
Find your warmest path to The Sosnow 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.