· Private foundation
Michael S Feldberg - Ruth Lazarus Charitable Trust
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 $10k41 grants · $61k
- $10k–50k8 grants · $178k
- $50k–250k4 grants · $385k
- $250k+1 grant · $416k
| Recipient | Amount |
|---|---|
| NATIONAL SCHOOL CLIMATE CENTER | $415,800 |
| COLUMBIA UNIVERSITY | $100,000 |
| HARVARD UNIVERSITY | $100,000 |
| BRENNAN CENTER FOR JUSTICE | $100,000 |
| FACING HISTORY AND OURSELVES | $85,000 |
| Individual grant recipient | $33,060 |
| FRIENDS SEMINARY | $30,000 |
| 92ND ST Y | $29,600 |
| CENTRAL PARK CONSERVANCY | $25,000 |
| BRANDEIS | $25,000 |
| INNOCENCE PROJECT | $15,000 |
| JEWISH COMMUNITY RELATIONS COUNCIL | $10,000 |
| YAMBA MALAWI | $10,000 |
| GIVEBUTTER | $7,871 |
| Individual grant recipient | $5,000 |
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, $115k) land where the poverty rate runs at 18%, against an area that typically sits at 10%. 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.
64 repeat relationships — 41 still active in FY2025, 23 since wound down; 11 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, 45% of grant dollars renewed an existing relationship; $464k 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
- UJUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC8× · 2017–2024 · $1.8M · revenue +39%
WILLIAM J BRENNAN CENTER FOR JUSTICE INC8× · 2017–2025 · $361k · revenue +206%- FHFACING HISTORY & OURSELVES INC7× · 2017–2025 · $319k · revenue +18%
Funded once
- HSHARVARD SCHOOL OF PUBLIC HEALTHone grant, 2019 · $20k
- SLSTAR LEGACY FOUNDATIONone grant, 2020 · $18k · revenue -12%
- YFYARIS FAMILY FOUNDATIONone grant, 2022 · $5k · revenue -93%
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.
Fordham university, the jesuit university of new york, is committed to the discovery of wisdom and the transmission of learning, through research and through education of the highest quality. for more information, see schedule o.
To educate students to be ethical and socially responsible leaders in a global community.
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…
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.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
The organization's mission is to engage in non partisan analysis of u.s. foreign policy in the middle east, with special emphasis on the middle east peace process, and to present policymakers in the united states, in the region and in the…
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.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
AJC's mission is to enhance the wellbeing of the Jewish people and Israel, and to advance human rights and democratic values in the United States and around the world. In pursuit of this mission, AJC advances democratic principles, fights…
The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.
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…
For reference, the grantee most central to the portfolio’s shape is West Side Center for Community Life and the most unlike its peers is Carolina Poodle Rescue. 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 34 years old; the field is 16. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 1% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 11% 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.
72 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. 72 of the 122 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 UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
- Who funds NATIONAL SCHOOL CLIMATE CENTER ↗
- Who funds WILLIAM J BRENNAN CENTER FOR JUSTICE INC ↗
- Who funds FACING HISTORY & OURSELVES INC ↗
- Who funds THE YOUNG MEN'S AND YOUNG WOMEN'S HEBREW ASSOCIATION ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK ↗
- Who funds THE INNOCENCE PROJECT INC ↗
- Who funds CENTRAL PARK CONSERVANCY INC ↗
- Who funds Push for Empowered Pregnancy Inc ↗
- Who funds EAST HARLEM TUTORIAL PROGRAM INC ↗
- Who funds YAMBA MALAWI INC ↗
- Who funds THE JEWISH FEDERATIONS OF NORTH AMERICA INC ↗
- Who funds STAR LEGACY FOUNDATION ↗
- Who funds CITY LAX INC ↗
- Who funds MUSEUM OF ARTS AND DESIGN ↗
- Who funds GRIFFIN CARES FOUNDATION ↗
- Who funds DWIGHT-ENGLEWOOD SCHOOL ↗
- Who funds FRESH AIR FUND ↗
- Who funds ANTI-DEFAMATION LEAGUE ↗
- Who funds FRIENDS OF THE AMERICAN UNIVERSITY OF AFGHANISTAN ↗
- Who funds THE LEGAL AID SOCIETY ↗
- Who funds CITY HARVEST INC ↗
- Who funds PHILLIPS EXETER ACADEMY ↗
- Who funds Amalgamated Charitable 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: Jewish Communal Fund · Combined Jewish Philanthropies of Greater Boston Inc · The Goldman Sachs Charitable Gift Fund · United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc · The Lazarus Charitable Trust Co Joan Lazarus · The New York Community Trust · The Jewish Federation of Greater Washington Inc · National Philanthropic Trust · The Ford Foundation · Jpmorgan Chase Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Open Society Institute
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 Michael S Feldberg - Ruth Lazarus Charitable Trust 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.
- Silent Spring Institute Inc — 12% of income from government
- President and Fellows of Harvard College — 7% of income from government
- Dana-Farber Cancer Institute Inc — 7% of income from government
- Pan-Massachusetts Challenge Inc — 0% of income from government
- Wounded Warrior Project Inc — 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.
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Find your warmest path to Michael S Feldberg - Ruth Lazarus Charitable Trust 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.