· Private foundation
K & M Weisburgh Charitable Fund Inc
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 $10k9 grants · $31k
- $10k–50k3 grants · $30k
| Recipient | Amount |
|---|---|
| CARNEGIE MELLON UNIVERSITY | $10,000 |
| LEAGUE OF AMER BICYCLISTS | $10,000 |
| UNION COLLEGE | $10,000 |
| PURCHASE COLLEGE FDN | $6,000 |
| EMELIN THEATRE | $4,500 |
| POWER MY LEARNING | $4,000 |
| MAMARONECK SCHOOLS FDN | $3,000 |
| RAILS TO TRAILS CONVERSANCY | $3,000 |
| STUDENT AID FUND | $3,000 |
| AFS USA | $3,000 |
| TRUSTEES OF UNIVERSITY OF PA | $2,500 |
| MAMARONECK PUBLIC LIBRARY | $2,000 |
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 (FY17–24) land where the poverty rate runs at 13%, against an area that typically sits at 12%. 37% of your dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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.
15 repeat relationships — 12 still active in FY2024, 3 since wound down.
How the two cohorts compare
Organizations
Total granted
Still filing today
New vs renewed · share of each year
In FY2024, 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
- CMCarnegie Mellon University7× · 2017–2024 · $78k · revenue +15%
- MSMAMARONECK SCHOOLS FOUNDATION INC8× · 2017–2024 · $38k · revenue +2%
- LOLeague of American Wheelman Inc6× · 2017–2022 · $34k · revenue +59%
Funded once
- LTLARCHMONT TEMPLE INCone grant, 2017 · $1k
- EEDUPLNone grant, 2017 · $599
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.
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.
The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.
To educate students to be ethical and socially responsible leaders in a global community.
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…
As a diverse community of learners, we cultivate integrity, curiosity, connection and resilience.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
Dickinson college provides a useful, innovative and interdisciplinary education in the liberal arts and sciences to prepare students to lead rich and fulfilling lives of engaged global citizenship
Macalester is committed to being a preeminent liberal arts college with an educational program known for its high standards for scholarship and its special emphasis on internationalism, multiculturalism, and service to society.
Union college, chartered by the state of new york in 1795, is one of the nation's oldest and most distinguished liberal arts colleges with engineering. consistently ranked among the nation's top colleges, union is a leader in educating…
Manhattan university is an independent catholic instituion of higher learning that embraces qualified men and women of all faiths, cultures, and traditions. the mission of manhattan university is to provide a contemporary, person-centered…
Depauw university develops leaders the world needs through an uncommon commitment to the liberal arts. depauw's diverse and inclusive learning and living experience, distinctive in its rigorous intellectual engagement and its global and…
At sarah lawrence college, our mission is to graduate citizens of the world who are diverse in every definition of the word, who take intellectual and creative risks, and who are able to focus exceptional intellectual discipline (continued…
For reference, the grantee most central to the portfolio’s shape is Purchase College Foundation Inc and the most unlike its peers is Rails to Trails Conservancy. 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 18 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 Carnegie Mellon University ↗
- Who funds PURCHASE COLLEGE FOUNDATION INC ↗
- Who funds PowerMyLearning Inc ↗
- Who funds AFS-USA INC ↗
- Who funds MAMARONECK SCHOOLS FOUNDATION INC ↗
- Who funds League of American Wheelman Inc ↗
- Who funds THE EMELIN THEATRE ↗
- Who funds RAILS TO TRAILS CONSERVANCY ↗
- Who funds MAMARONECK-LARCHMONT STUDENT AID FUND ↗
- Who funds TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA ↗
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: Jewish Communal Fund · Nancy L Goodman & Richard Goodman Foundation · Lake Road Foundation · The Toby and Nataly Ritter Family Foundation · Glff Inc · Vanguard Charitable Endowment Program · The Pfizer Foundation Inc · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund
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 K & M Weisburgh Charitable Fund 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 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.
Warm introductions · Powered by PlinthPlus
How do I get to K & M Weisburgh Charitable Fund Inc?
Find your warmest path to K & M Weisburgh Charitable Fund 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.