· Private foundation
Katz Sidlow Foundation 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, FY2020 to 2025.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- Under $10k14 grants · $19k
- $10k–50k1 grant · $19k
| Recipient | Amount |
|---|---|
| Individual grant recipient | $19,238 |
| Fleetwood Rabbi Fund | $6,250 |
| American Friends of Bar Ilan University | $3,000 |
| SAR | $2,171 |
| Yeshiva University | $2,000 |
| FIDF | $1,000 |
| Met Council Jewish Poverty | $934 |
| MTVA | $720 |
| Sinai Schools | $720 |
| Yad Ezra | $525 |
| Hadar | $520 |
| Individual grant recipient | $478 |
| Ezer Mitziyon | $384 |
| Congregation Sons of Israel | $180 |
| Individual grant recipient | $18 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Dollar for dollar, its grants (FY20–25) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 33% of its dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-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.
Grantees it renews have grown median revenue +35% since the first grant, against +4% for those funded once.
18 repeat relationships: 10 still active in FY2025, 8 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, 72% of grant dollars renewed an existing relationship; $11k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- IGIndividual grant recipient5× · 2020–2025 · $101k
- SSAR3× · 2020–2025 · $13k
- SASALANTER AKIBA RIVERDALE ACADEMY3× · 2021–2024 · $13k
Funded once
- IGIndividual grant recipientone grant, 2024 · $23k
- JIJLIC INCone grant, 2023 · $2k
- IGIndividual grant recipientone grant, 2024 · $1k
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.
Biu produces students who excel in the sciences, humanities, law, engineering, business & the arts.
To prepare students for the rabbinate and to issue the traditional certificate of ordination in connection therewith. the seminary is authorized to confer the degree of master of hebrew literature (m.h.l.), doctor of hebrew literature…
The organization seeks to reinforce the foundations of israel as a jewish and democratic state. it acts to promote programs to educate the israeli public on the importance of both values and to demonstrate how each contributes to and…
How this is measured
13 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. 13 of the 50 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 YESHIVA UNIVERSITY ↗
- Who funds AMERICAN FRIENDS OF BAR-ILAN UNIVERSITY ↗
- Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
- Who funds JLIC INC ↗
- Who funds Met Council Inc ↗
- Who funds AMERICAN FRIENDS OF NATAL INC ↗
- Who funds The Frisch School ↗
- Who funds EZER MIZION ↗
- Who funds BRANDEIS UNIVERSITY ↗
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 · 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 Katz Sidlow Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Katz Sidlow Foundation Inc. Bigger dots raise more.
- Brandeis University: 9% of income from government
- The Frisch School: 0% of income from government
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to Katz Sidlow Foundation Inc?
Find your warmest path to Katz Sidlow Foundation 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 Katz Sidlow’s filings →