· Private foundation
The Harold Wetterberg Foundation
Its FY2025 filing reports that it accepted unsolicited grant applications.
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 $10k45 grants · $80k
- $10k–50k3 grants · $80k
- $50k–250k1 grant · $50k
| Recipient | Amount |
|---|---|
| ROWAN UNIVERSITY FOUNDATION | $50,000 |
| DREW UNIVERSITY | $30,000 |
| ROUNDABOUT THEATRE COMPANY | $25,000 |
| COMMUNITY FOUNDATION OF GREENVILLE | $25,000 |
| DREW O'DONOGHUE FUND INC | $5,000 |
| TUNNELS TO TOWER FOUNDATION | $5,000 |
| BUCKS COUNTY PLAYHOUSE | $5,000 |
| STATE THEATER OF NEW JERSEY | $5,000 |
| SAFE HARBOR | $5,000 |
| CHILDREN'S HOSPITAL OF PHILADELPHIA | $4,000 |
| LORE SCHOOL PARENTS ASSOCIATION INC | $3,000 |
| ALZHEIMER'S ASSOCIATION | $3,000 |
| COMMUNITY KARMA | $2,500 |
| CONCUSSION LEGACY FOUNDATION | $2,000 |
| CARON FOUNDATION | $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.
Your human-services grants (FY17–25, $57k) land where the poverty rate runs at 11%, against an area that typically sits at 9%. 63% 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 +24% since the first grant, against +13% for the ones you funded once.
84 repeat relationships — 44 still active in FY2025, 40 since wound down; 3 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, 72% of grant dollars renewed an existing relationship; $52k 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
- AVAMERICAN VETERINARY MEDICAL FOUNDATION8× · 2017–2024 · $173k · revenue +19%
- DUDREW UNIVERSITY2× · 2024–2025 · $50k · revenue +3%
- ATATLANTIC THEATER COMPANY7× · 2017–2024 · $49k · revenue +51%
Funded once
- UOUNIVERSITY OF CALIFORNIA-DAVIS (SCHLESINGER)one grant, 2021 · $13k
- CUCORNELL UNIVERSITY (LACHENAUER)one grant, 2017 · $13k
- UOUNIVERSITY OF WISCONSIN-MADISON (ANSEN-WILSON)one grant, 2017 · $13k
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.
Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.
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.
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…
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
To educate students to be ethical and socially responsible leaders in a global community.
Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
Jfk medical associates, p.a. is committed to excellence in providing quality and compassionate healthcare services to diverse communities.
To facilitate and promote philanthropy through donor advised funds.
For reference, the grantee most central to the portfolio’s shape is Mercy Center Corporation and the most unlike its peers is Play With Jack 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.
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 40 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) — 2% 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.
68 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. 68 of the 143 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 AMERICAN VETERINARY MEDICAL FOUNDATION ↗
- Who funds ROUNDABOUT THEATRE COMPANY INC ↗
- Who funds COMMUNITY FOUNDATION OF GREENVILLE INC ↗
- Who funds THE VERMONT COMMUNITY FOUNDATION ↗
- Who funds DREW UNIVERSITY ↗
- Who funds ROWAN UNIVERSITY FOUNDATION INC ↗
- Who funds ATLANTIC THEATER COMPANY ↗
- Who funds Cornell University ↗
- Who funds THE DREW O'DONOGHUE FUND INC ↗
- Who funds Metropolitan Opera Association Inc ↗
- Who funds JOHN FITZGERALD KENNEDY LIBRARY FOUNDATION INCORPORATED ↗
- Who funds THE CHILDREN'S HOSPITAL OF PHILADELPHIA ↗
- Who funds ENCOURAGE KIDS FOUNDATION ↗
- Who funds ASBURY PARK LITTLE LEAGUE INC ↗
- Who funds ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC ↗
- Who funds Jewish Community of Greater Stowe ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds TASK Inc Trenton Area Soup Kitchen Inc ↗
- Who funds RICHARD J CARON FOUNDATION ↗
- Who funds PLAY WITH JACK FOUNDATION 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: Princeton Area Community Foundation Inc · The Robert Wood Johnson Foundation · Investors Foundation Inc · Bristol-Myers Squibb Foundation Inc · Manasquan Bank Charitable Foundation Inc · New Jersey Natural Gas Company Charity Inc · Citizens Philanthropic Foundation Inc · The Provident Bank Foundation · Oceanfirst Foundation · Columbia Bank Foundation · Community Foundation of New Jersey · The Dardin Fund Inc
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 Harold Wetterberg 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.
- Womanspace Inc — 47% of income from government
- Mercy Center Corporation — 21% of income from government
- Homefront Inc — 9% of income from government
- Wellesley College — 1% of income from government
- Rowan University Foundation Inc — 0% of income from government
- Jacksonville Zoological Society Inc — 0% of income from government
- Drew University — 0% of income from government
- Rutgers University Foundation — 0% of income from government
- The Vermont Community Foundation — 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 Harold Wetterberg Foundation?
Find your warmest path to The Harold Wetterberg 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.