· 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 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.
By grant size · FY2025
- Under $10k7 grants · $21k
- $10k–50k9 grants · $138k
- $50k–250k2 grants · $100k
| Recipient | Amount |
|---|---|
| ST JOHN'S HEALTHCARE | $50,000 |
| BRIDGE2RWANDA (ISOMO ACADAMY) | $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 |
| Individual grant recipient | $10,000 |
| CENTER FOR THE ARTS | $10,000 |
| 3 CREEK CARES | $10,000 |
| TETON LITERACY CENTER | $5,000 |
| COOMBS OUTDOORS | $5,000 |
| TETON COUNTY SEARCH & RESCUE | $2,500 |
| FRIENDS OF BRIDGER-TETON | $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, $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 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 +85% since the first grant, against +31% for the ones you 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
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
GRAND TETON NATIONAL PARK FOUNDATION4× · 2022–2025 · $75k · revenue +98%- TLTETON LITERACY CENTER2× · 2021–2025 · $55k · revenue +85%
- JHJACKSON HOLE LAND TRUST2× · 2022–2023 · $20k · revenue +31%
Funded once
- TTTHE TRIBAL BUFFALO INITIATIVEone grant, 2024 · $75k
- CFCENTRE FOR THE ARTS - JACKSON WYOMINGone grant, 2022 · $50k
- PAPRINCETON ACADEMY OF THE SACRED HEART INCone grant, 2019 · $50k
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.
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
For reference, the grantee most central to the portfolio’s shape is Community Foundation of Jackson Hole and the most unlike its peers is Olivia & Leslie Rainbow 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.
Your grantees are a median of 39 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% 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 13% 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 87 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 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 ↗
- Who funds ALEXANDER HAMILTON INSTITUTE FOR THE STUDY OF WESTERN CIVILIZATION ↗
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: 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
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 Sipprelle Charitable Corp 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.
- 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
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 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.