· Private foundation
Sipprelle Charitable Corp
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 it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- Under $10k7 grants · $21k
- $10k–50k9 grants · $138k
- $50k–250k2 grants · $100k
| Recipient | Amount |
|---|---|
| BRIDGE2RWANDA (ISOMO ACADAMY) | $50,000 |
| ST JOHN'S HEALTHCARE | $50,000 |
| GARDENS FOR HEALTH | $30,000 |
| Individual grant recipient | $25,000 |
| SOLA SCHOOL | $15,000 |
| JH LAND TRUST | $15,000 |
| 4TH STREET PRESERVE | $12,500 |
| GRAND TETON NATIONAL PARK FOUNDATION | $10,000 |
| CENTER FOR THE ARTS | $10,000 |
| Individual grant recipient | $10,000 |
| 3 CREEK CARES | $10,000 |
| TETON LITERACY CENTER | $5,000 |
| COOMBS OUTDOORS | $5,000 |
| TETON RAPTOR CENTER | $2,500 |
| FRIENDS OF BRIDGER-TETON | $2,500 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY17–24, $275k) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 81% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
Which US states its grants reach
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
Grantees it renews have grown median revenue +57% since the first grant, against +31% for those funded once.
19 repeat relationships: 5 still active in FY2025, 14 since wound down; 13 grantees were first funded in FY2025 (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 FY2025, 33% of grant dollars renewed an existing relationship; $174k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
GRAND TETON NATIONAL PARK FOUNDATION4× · 2022–2025 · $75k · revenue +98%- HSHISTORICAL SOCIETY OF PRINCETON4× · 2017–2020 · $64k · revenue +34%
- TLTETON LITERACY CENTER2× · 2021–2025 · $55k · revenue +85%
Funded once
- TTTHE TRIBAL BUFFALO INITIATIVEone grant, 2024 · $75k
- DFDian Fossey Gorilla Fund International Incgraduatedone grant, 2023 · $50k · revenue +64%
- PAPRINCETON ACADEMY OF THE SACRED HEART INCone grant, 2019 · $50k
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
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 purpose of the school is to promote, advance and sponsor charitable and educational activities.
The peak school seeks to ignite a passion for learning, to develop students of diverse talents and backgrounds who think critically and act with integrity, and to graduate compassionate, confident, capable students who will embrace their…
The Avery Coonley School elevates high-achieving and gifted learners through immersion in a mutually talented community where intellect, curiosity, and creativity are enhanced by optimal challenge.
To create a nation where everyone enjoys a fair share of our collective prosperity.
Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.
To bring quality public television programs and resources to communities throughout new jersey and its tri-state neighbors. its content, both on-air and online, aims to reflect the diverse
The glacier national park conservancy works to preserve and protect glacier national park for future generations.
To educate students to be ethical and socially responsible leaders in a global community.
Pew Research Center is a nonpartisan "fact tank" that informs the public about the issues, attitudes and trends shaping America and the world. Pew Research Center generates a foundation of facts that enriches the public dialogue and…
The mission of the hudson river foundation is to inspire and inform action through science and engaging people to enhance the hudson river, estuary, and watershed (see schedule o).
Education and Research
How this is measured
35 grantees tracked through their own filings, 2017–2026.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2026, not grant rows in a single year, so this will not match the grant count on the cover. 35 of the 87 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds THE YWCA PRINCETON INC ↗
- Who funds GRAND TETON NATIONAL PARK FOUNDATION ↗
- Who funds HISTORICAL SOCIETY OF PRINCETON ↗
- Who funds TETON LITERACY CENTER ↗
- Who funds One22 Inc ↗
- Who funds Dian Fossey Gorilla Fund International Inc ↗
- Who funds COMMUNITY FOUNDATION OF JACKSON HOLE ↗
- Who funds JACKSON HOLE LAND TRUST ↗
- Who funds Community Center for the Arts ↗
- Who funds PRINCETON RESCUE SQUAD INC ↗
- Who funds The Petey Greene Program Inc ↗
- Who funds INSTITUTE FOR ADVANCED STUDY - LOUIS BAMBERGER & MRS FELIX FULD FOUNDATION ↗
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: Princeton Area Community Foundation Inc · Bristol-Myers Squibb Foundation Inc · Guerrero Family Foundation · The Frank J Ryan and Jane E Ryan Family Foundation · Curtis W McGraw Foundation · The Brooks Foundation · Darrick and Julia Walker Open Hands Foundation · George H and Estelle M Sands Foundation · Hughes Charitable Foundation · Perkins Charitable Foundation · Community Foundation of Jackson Hole · The McKnight Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization Sipprelle Charitable Corp funds: left to right is the share of its income from government, bottom to top the share from Sipprelle Charitable Corp. Bigger dots raise more.
- Crossroads of the American Revolution Association Inc: 62% of income from government
- The Petey Greene Program Inc: 29% of income from government
- Center for Supportive Schools Inc: 9% of income from government
- Institute for Advanced Study - Louis Bamberger & Mrs Felix Fuld Foundation: 7% of income from government
- Princeton Nursery School: 4% of income from government
- The Watershed Institute Inc: 3% of income from government
- Harry K Foundation: 2% of income from government
- Native Roots Farm Foundation: 2% of income from government
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to Sipprelle Charitable Corp?
Find your warmest path to Sipprelle Charitable Corp 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.
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