· Private foundation
Mortimer J Propp Legacy for Orthodox Hebrew Day Schools Inc
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 $10k3 grants · $9k
- $10k–50k2 grants · $33k
- $50k–250k1 grant · $169k
| Recipient | Amount |
|---|---|
| CHABAD OF SOUTHAMPTON JEWISH CENTER | $168,800 |
| CHABAD OF TRIBECA | $22,580 |
| SOUTH FLORIDA JEWISH ACADEMY | $10,000 |
| CONGREGATION KEHILATH JESHURUN | $6,804 |
| BMA SPECIAL TRUST FUND | $2,000 |
| THE WALL STREET SYNAGOGUE | $250 |
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 (FY24–24, $5k) land where the poverty rate runs at 6%, against an area that typically sits at 9%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.
How this is measured
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
Grantees it renews have grown median revenue +39% since the first grant, against +2% for those funded once.
10 repeat relationships: 5 still active in FY2025, 5 since wound down; 1 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, 99% of grant dollars renewed an existing relationship; $2k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- SFSouth Florida Academy of Learning Inc3× · 2023–2025 · $125k · revenue +15%
- UJUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC3× · 2017–2024 · $27k · revenue +39%
- TJTHE JEWISH MUSEUM3× · 2017–2019 · $15k · revenue +99%
Funded once
- AIAMERICAN ISRAEL EDUCATION FOUNDATION INCone grant, 2020 · $100k · revenue +2%
- SFSOUTH FLORIDA JEWISH ACADEMY FOR SPECIAL NEEDSone grant, 2021 · $52k
FRIENDS OF THE ISRAEL DEFENSE FORCESone grant, 2024 · $25k · revenue 0%
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.
Funding of organizations qualified under section 501(c) or equivalent as operating for charitable, religious, or educational purposes, or that would so qualify based on the nature of such organization's operations
To further jewish education in israel
How this is measured
11 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. 11 of the 27 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 South Florida Academy of Learning Inc ↗
- Who funds AMERICAN ISRAEL EDUCATION FOUNDATION INC ↗
- Who funds AMERICAN JEWISH WORLD SERVICE INC ↗
- Who funds UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
- Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
- Who funds THE JEWISH MUSEUM ↗
- Who funds American Friends Of Or National Missions ↗
- Who funds AMERICAN FRIENDS OF LEKET ISRAEL INC ↗
- Who funds CAMP HASC INC ↗
- Who funds Solomon Schechter School of Manhattan ↗
- Who funds OUR PLACE INC ↗
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: Jewish Communal Fund · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization Mortimer J Propp Legacy for Orthodox Hebrew Day Schools Inc funds: left to right is the share of its income from government, bottom to top the share from Mortimer J Propp Legacy for Orthodox Hebrew Day Schools Inc. Bigger dots raise more.
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to Mortimer J Propp Legacy for Orthodox Hebrew Day Schools Inc?
Find your warmest path to Mortimer J Propp Legacy for Orthodox Hebrew Day Schools 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.
Play a game based on Mortimer J Propp Legacy for Orthodox Hebrew Day Schools’ filings →