· Private foundation
The Jacob & Ruth Mazer Foundation Co Michael Mazer
Its FY2025 filing reports that it accepted unsolicited grant applications.
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.
| Recipient | Amount |
|---|---|
| PLANNED PARENTHOOD | $8,500 |
| ACLU FOUNDATION | $5,000 |
| CIVIC CANOPY | $5,000 |
| Individual grant recipient | $3,000 |
| OSBORNE ASSOCIATION | $2,800 |
| JEWISH COLORADO | $2,750 |
| CAMP KESEM | $1,500 |
| FRIENDS OF CASCO BAY | $1,000 |
| DENVER MUSEUM OF NATURE SCIENCE | $1,000 |
| GREENWICH HOSPITAL FOUNDATION | $1,000 |
| ACLU OF MAINE | $1,000 |
| MAINE FAMILY PLANNING | $700 |
| YARMOUTH CARES ABOUT NEIGHBORS | $700 |
| AMERICAN CIVIL LIBERTIES UNION OF C | $600 |
| SOUTHERN POVERTY LAW CENTER | $500 |
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 (FY18–25, $8k) land where the poverty rate runs at 11%, against an area that typically sits at 11%. 80% 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.
29 repeat relationships: 13 still active in FY2025, 16 since wound down; 6 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, 85% of grant dollars renewed an existing relationship; $5k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC4× · 2020–2025 · $20k · revenue +65%- TOTHE OSBORNE ASSOCIATION INC5× · 2018–2025 · $11k · revenue +70%
- GHGREENWICH HOSPITAL8× · 2017–2025 · $8k · revenue +52%
Funded once
- IGIndividual grant recipientone grant, 2017 · $1k
- AMARIZONA MUSICFEST INCgraduatedone grant, 2019 · $1k · revenue +225%
- GEGREENWICH EMERGENCY MEDICAL SERVICE INCone grant, 2021 · $750 · revenue +14%
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.
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
Wamc is chartered by the new york state board of regents to "furnish, prepare and present non-profit and non-commercial educational, instructional and cultural radio programs and also non-profit and non-commercial programs (wamc's mission…
National public radio, inc. ("npr") works collaboratively with member public radio station licensees ("member stations") to create a more informed public, one that is challenged and invigorated by a deeper understanding and appreciation of…
To provide exceptional healthcare services in a safe and trustfulenvironment through the expertise, commitment and compassion of ourfamily of caregivers.
The npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…
To effectively and efficiently mitigate risks to the reliability and security of the western interconnection's bulk power system.
To provide exceptional healthcare services in a safe and trustful environment through the expertise, committment, and compassion of our family of caregivers.
Connecticut public broadcasting, inc. will inform, educate and inspire the people of connecticut, connecting and empowering the people of ct through outstanding journalism, storytelling, education and experiences, to make our state a more…
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…
To provide exceptional healthcare services in a safe and trustfulenvironment through the expertise, commitment, and compassion ofour family of caregivers.
To provide exceptional healthcare services in a safe and trustfulenvironment through the expertise, commitment and compassion of ourfamily of caregivers.
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…
How this is measured
27 grantees tracked through their own filings, 2017–2026.
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 2026, not grant rows in a single year, so this will not match the grant count on the cover. 27 of the 52 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 JEWISHColorado ↗
- Who funds THE CIVIC CANOPY ↗
- Who funds UNITED WAY OF GREENWICH INC ↗
- Who funds AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC ↗
- Who funds THE OSBORNE ASSOCIATION INC ↗
- Who funds GREENWICH HOSPITAL ↗
- Who funds WNET ↗
- Who funds Hospice of the Valley ↗
- Who funds SOUTHERN POVERTY LAW CENTER INC ↗
- Who funds Caramoor Center for Music & the Arts Inc ↗
- Who funds NEW YORK PUBLIC RADIO ↗
- Who funds JBI INTERNATIONAL INC ↗
- Who funds Camp Kesem National ↗
- Who funds YARMOUTHCAN ↗
- Who funds Round Hill Volunteer Fire and Rescue Department Inc ↗
- Who funds ARIZONA MUSICFEST INC ↗
- Who funds FRIENDS OF CASCO BAY ↗
- Who funds ROYAL RIVER CONSERVATION TRUST ↗
- Who funds GREENWICH EMERGENCY MEDICAL SERVICE INC ↗
- Who funds FAMILY PLANNING ASSOCIATION OF MAINE INC ↗
- Who funds THE HEARD MUSEUM ↗
- Who funds MAINE PEOPLE'S RESOURCE CENTER ↗
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: Maine Community Foundation Inc · National Philanthropic Trust · 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 The Jacob & Ruth Mazer Foundation Co Michael Mazer funds: left to right is the share of its income from government, bottom to top the share from The Jacob & Ruth Mazer Foundation Co Michael Mazer. Bigger dots raise more.
- Greenwich Hospital: 0% of income from government
How this is measured
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