· Private foundation
The Mortimer & Barbara Klaus Family Foundation
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 it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- Under $10k29 grants · $91k
- $10k–50k6 grants · $92k
| Recipient | Amount |
|---|---|
| MAIMONIDES MEDICAL CENTER | $25,000 |
| TEMPLE EMANUEL | $18,000 |
| SAJ | $18,000 |
| CONGREGATION BETH DAVID | $11,400 |
| SHARON HOSPITAL | $10,000 |
| Individual grant recipient | $10,000 |
| PARK AVENUE SYNAGOGUE | $9,919 |
| NATIONAL ALLIANCE ON MENTAL ILLNESS OF NYC (NAMI-NYC) | $5,000 |
| JEWISH FEDERATION OF SOUTH PALM BEACH COUNTY | $5,000 |
| MEMORIAL SLOAN KETTERING CANCER CENTER | $5,000 |
| MAZON | $5,000 |
| WORLD CENTRAL KITCHEN | $5,000 |
| CITY HARVEST DONOR SYSTEMS | $5,000 |
| SECOND HARVEST FOOD BANK OF NORTHWEST NC | $5,000 |
| SHEFFIELD KIWANIS FOUNDATION | $5,000 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY22–25, $25k) land where the poverty rate runs at 13%, against an area that typically sits at 12%. 59% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
Which US states its grants reach
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
33 repeat relationships: 29 still active in FY2025, 4 since wound down; 5 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, 93% of grant dollars renewed an existing relationship; $13k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- MMMAIMONIDES MEDICAL CENTER4× · 2022–2025 · $105k · revenue +25%
- UJUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC3× · 2022–2024 · $46k · revenue +19%
SECOND HARVEST FOOD BANK OF NORTHWEST NC INC4× · 2022–2025 · $23k · revenue +21%
Funded once
- JJDCone grant, 2022 · $18k
- PAPARK AVENUE SYNAGOGUE MEMBERSHIPone grant, 2022 · $15k
- YTYeshiva Tiferes Yisroelone grant, 2022 · $10k · revenue -21%
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
The network is an international membership association of more than 170 non profit human service agencies in the united states, canada and israel. its members provide a full range of human services for the jewish community and beyond,…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Jewish home lifecare (d/b/a the new jewish home, manhattan), is a not-for-profit organization committed to transforming eldercare for new yorkers so they can live meaningful lives in the place they call home.
Mjhs health system is a charitable not-for-profit established to support the activities of affiliated organizations. mjhs is built on the core values of compassion, dignity and respect, first established by the four brooklyn ladies in…
A non-profit organization dedicated to maintaining the independence and dignity of seniors and at risk populations through a spectrum of services. selfhelp is a not-for-profit organization dedicated to maintaining the independence and…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
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 clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
& part iii, line 1: the mission of the nassau-suffolk hospital council, inc. (nshc) is to:- provide a forum for the exchange of ideas regarding the development of regional, state, and national health policy,- identify key policy issues…
The mission of the daughters of sarah nursing center, inc. is to enhance the quality of life, assure the safety and dignity, and foster the independence of those we serve through residential, personal care, health and other quality…
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.
How this is measured
25 grantees tracked through their own filings, 2017–2025.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 25 of the 54 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds MAIMONIDES MEDICAL CENTER ↗
- Who funds UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
- Who funds SECOND HARVEST FOOD BANK OF NORTHWEST NC INC ↗
- Who funds MAZON A Jewish Response to Hunger ↗
- Who funds SHARON FIRE DEPARTMENT INC ↗
- Who funds HABITAT FOR HUMANITY OF FORSYTH COUNTY INC ↗
- Who funds Children's Home Society of North Carolina Inc ↗
- Who funds Yeshiva Tiferes Yisroel ↗
- Who funds THE MENTAL HEALTH ASSOCIATION IN FORSYTH COUNTY INC ↗
- Who funds CHORE SERVICE INC ↗
- Who funds WORLD CENTRAL KITCHEN INC ↗
- Who funds JEWISH FEDERATION OF SOUTH PALM BEACH COUNTY INC ↗
- Who funds LIVING RESOURCES CORPORATION ↗
- Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
- Who funds WEST SIDE CENTER FOR COMMUNITY LIFE ↗
- Who funds PROJECT SAGE INC ↗
- Who funds HOTCHKISS LIBRARY OF SHARON INC ↗
- Who funds NEW YORK LAW SCHOOL ↗
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: Walter and Phyllis Ann Borten Foundation · Northwest Connecticut Community Foundation Inc · MJPM Foundation · Peter and Helen Haje Foundation · The Robert L and Jean Clarke Family Foundation · The Hallingby Family Foundation Inc · Low Road Foundation · Berkshire Taconic Community Foundation Inc · The New York Community Trust · The Rhoades-Robinson Fund · Easton Family Fund · Tilia Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization The Mortimer & Barbara Klaus Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The Mortimer & Barbara Klaus Family Foundation. Bigger dots raise more.
- Northwest Connecticut Land Conservancy Inc: 9% of income from government
How this is measured
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