· Private foundation
Mountaintop Foundation
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 placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k8 grants · $26k
- $10k–50k2 grants · $36k
| Recipient | Amount |
|---|---|
| BEACON OF HOPE PINE ISLAND | $20,000 |
| TUNNELS TO TOWERS | $16,000 |
| USEPPA HISTORICAL SOCIETY | $5,500 |
| ST REGIS FOUNDATION | $5,000 |
| Individual grant recipient | $5,000 |
| ROLLINS COLLEGE | $4,000 |
| ADIRONDACK MUSEUM | $3,000 |
| COMEBACK YOGA FOR VETS | $2,000 |
| SAIL TO PREVAIL FOR VETS | $1,400 |
| Individual grant recipient | $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 (FY17–23, $66k) land where the poverty rate runs at 11%, against an area that typically sits at 8%. 99% 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 +53% since the first grant, against +49% for the ones you funded once.
20 repeat relationships — 9 still active in FY2024, 11 since wound down; 1 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, 68% of grant dollars renewed an existing relationship; $20k 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
- BOBEACON OF HOPE PINE ISLAND INC7× · 2017–2023 · $65k · revenue +71%
- SRST REGIS FOUNDATION INC7× · 2017–2024 · $47k · revenue +48%
STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION2× · 2021–2024 · $41k · revenue +112%
Funded once
- PAPROCTOR ACADEMYgraduatedone grant, 2017 · $33k · revenue +45%
- PMPROJECT MOUNT HOOD FOUNDATIONone grant, 2021 · $20k
- CCCHILDRENS CANCER AND BLOOD FOUNDATIone grant, 2017 · $18k
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 bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
Bates is a college of the liberal arts and sciences, and is a coeducational, nonsectarian, residential college with special commitments to academic rigor, and to assuring in all of its efforts the dignity of each individual, and access to…
Saint anselm is a catholic, benedictine college providing all of its students a distinctive liberal arts education that incorporates opportunities for professional and career preparation. it does so in a learning community that encourages…
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 post-secondary education of excellence.
Wilson college empowers students to be confident and critical thinkers, creative visionaries, effective communicators, honorable leaders, and agents of justice.
Ashland university, guided by our christian heritage, is a comprehensive, private university that provides a transformative learning experience, shaping graduates who work, serve and lead with integrity in their local, national, and global…
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.
Amherst college educates students of exceptional potential from all backgrounds so that they may seek value and advance knowledge, engage the world around them, and lead principled lives of consequence. amherst brings together the most…
Rooted in the liberal arts & sciences & lutheran expression of the christian faith, & is committed to offering a challenging education that develops qualities of mind, spirit, & body necessary for a rewarding life of leadership & service…
For reference, the grantee most central to the portfolio’s shape is The Adirondack Council Inc and the most unlike its peers is Dress for Success Northern Nj-10 Counties Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
18 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. 18 of the 46 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 BEACON OF HOPE PINE ISLAND INC ↗
- Who funds ST REGIS FOUNDATION INC ↗
- Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
- Who funds PROCTOR ACADEMY ↗
- Who funds BROOKS SCHOOL ↗
- Who funds ROLLINS COLLEGE ↗
- Who funds Bowdoin College ↗
- Who funds ADIRONDACK HISTORICAL ASSOCIATION ↗
- Who funds ALL HANDS AND HEARTS SMART RESPONSE INC ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds OUR HOUSE INC ↗
- Who funds DRESS FOR SUCCESS NORTHERN NJ-10 COUNTIES INC ↗
- Who funds THE ADIRONDACK COUNCIL INC ↗
- Who funds CAPTAINS FOR CLEAN WATER 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: The Pfizer Foundation Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 Mountaintop 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, a single department, or state — and drag the year to watch it move.
- Our House Inc — 1% of income from government
- Rollins College — 0% of income from government
- Blair Academy — 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 Mountaintop Foundation?
Find your warmest path to Mountaintop Foundation 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.