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Colorado · Private foundation

The Jacob & Ruth Mazer Foundation Co Michael Mazer

Its FY2025 filing reports that it accepted unsolicited grant applications.

$38k
Granted FY2025(still arriving)
20
Grants FY2025
10
Organizations funded FY2024
20%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$1,000
Largest grant, FY2025
$8,500
Organizations funded a year
9 to 25
FY2018 to FY2024
States reached, FY2025
9
Total assets, FY2025
$347k
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 20% of the organizations The Jacob & Ruth Mazer Foundation Co Michael Mazer funded were first-time grantees, receiving 5% of its grant dollars.

New vs renewed · share of each year

In FY2024, 95% of grant dollars renewed an existing relationship; $2k went to new ones.

50%100%’18’19’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’18’19’20’21’22’23’24
Arts & CultureHuman ServicesCivil RightsPublic Safety & DisasterEnvironmentHealthOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving19$35k32%
FY202410$31k20%
FY20239$25k0%
FY20229$30k22%
FY202112$17k8%
FY202023$30k22%
FY201925$32k32%
FY201822$27k50%
80% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Health$61kCivil Rights$47kReligion$39kCommunity Improvement$27kPhilanthropy$21kYouth Development$17kArts & Culture$12kCrime & Legal$11kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
WI
NY
MA
PA
NJ
CT
CA
CO
MO
VA
AZ
AL

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
The Civic Canopy$26,00080%
United Way of Greenwich Inc$20,50050%
American Civil Liberties Union Foundation Inc$20,00040%
The Jewish Experience$12,5003n/a
The Osborne Association Inc$10,80050%
Greenwich Hospital$8,00080%
Wnet$6,00060%
Hospice of the Valley$4,50020%
Southern Poverty Law Center Inc$3,00050%
Caramoor Center for Music & the Arts Inc$2,50050%
Show all 28 grantees

What it could do for these grantees

Plus 23 recipients with no EIN on record ($118k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Jacob & Ruth Mazer Foundation Co Michael Mazer supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetThe Civic Canopy: $26,000 over 8y, 0.4% of budgetUnited Way of Greenwich Inc: $20,500 over 5y, 0.2% of budgetAmerican Civil Liberties Union Foundation Inc: $20,000 over 4y, 0.0% of budgetThe Osborne Association Inc: $10,800 over 5y, 0.0% of budgetGreenwich Hospital: $8,000 over 8y, 0.0% of budgetWnet: $6,000 over 6y, 0.0% of budgetHospice of the Valley: $4,500 over 2y, 0.0% of budgetSouthern Poverty Law Center Inc: $3,000 over 5y, 0.0% of budgetCaramoor Center for Music & the Arts Inc: $2,500 over 5y, 0.0% of budgetNew York Public Radio: $2,000 over 4y, 0.0% of budgetJbi International Inc: $2,000 over 3y, 0.0% of budgetCamp Kesem National: $1,500 over 1y, 0.0% of budgetYarmouthcan: $1,200 over 2y, 0.4% of budgetRound Hill Volunteer Fire and Rescue Department Inc: $1,200 over 4y, 0.1% of budgetArizona Musicfest Inc: $1,000 over 1y, 0.0% of budgetFriends of Casco Bay: $1,000 over 1y, 0.1% of budgetRoyal River Conservation Trust: $1,000 over 2y, 0.1% of budgetGreenwich Emergency Medical Service Inc: $750 over 1y, 0.0% of budgetFamily Planning Association of Maine Inc: $700 over 1y, 0.0% of budgetThe Heard Museum: $500 over 1y, 0.0% of budgetPort Chester-Rye-Rye Brook Emergency Medical Services Inc: $500 over 1y, 0.0% of budgetRay of Hope Foundation Inc: $500 over 1y, 8.3% of budgetThe Afya Foundation of America Inc: $300 over 1y, 0.0% of budgetHuman Rights First: $250 over 1y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 24.

Nonprofits that may fit its grantmaking

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.

Maine Community Foundation IncME12.9× affinity4 shared granteesties to 5 of 5Hover any node to trace its alignments.Compare side by side →

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
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare The Jacob & Ruth Mazer Foundation Co Michael Mazer with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to The Jacob & Ruth Mazer Foundation Co Michael Mazer?

Find your warmest path to The Jacob & Ruth Mazer Foundation Co Michael Mazer 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.

About The Jacob & Ruth Mazer Foundation Co Michael Mazer

How much does The Jacob & Ruth Mazer Foundation Co Michael Mazer give?
The Jacob & Ruth Mazer Foundation Co Michael Mazer reported 20 grants totaling $37,550 in its FY2025 IRS filing. It funded between 9 and 25 organizations a year over FY2018 to FY2024.
What does The Jacob & Ruth Mazer Foundation Co Michael Mazer fund?
By grant dollars over FY2017 to FY2025, its largest causes are Health (22%), Civil Rights (17%), Religion (14%).
Who are The Jacob & Ruth Mazer Foundation Co Michael Mazer's largest grantees?
By total granted over FY2017 to FY2025: The Civic Canopy ($26k), United Way of Greenwich Inc ($21k), American Civil Liberties Union Foundation Inc ($20k).
Does The Jacob & Ruth Mazer Foundation Co Michael Mazer fund new organizations?
In FY2024, 20% of the organizations it funded were first-time grantees.
Does The Jacob & Ruth Mazer Foundation Co Michael Mazer accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as The Jacob & Ruth Mazer Foundation Co Michael Mazer?
Its strongest co-funders, measured against what their size predicts, include Maine Community Foundation Inc, National Philanthropic Trust, Vanguard Charitable Endowment Program.
Where is The Jacob & Ruth Mazer Foundation Co Michael Mazer based?
The Jacob & Ruth Mazer Foundation Co Michael Mazer is based in CO.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 52 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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