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Connecticut · Private foundation

The Patricia M and Robert H Martinsen 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.

$403k
Granted FY2025(still arriving)
21
Grants FY2025
19
Organizations funded FY2024
21%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$100
Largest grant, FY2025
$300,000
Organizations funded a year
14 to 23
FY2020 to FY2024
States reached, FY2025
9
Total assets, FY2025
$549k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 21% of the organizations The Patricia M and Robert H Martinsen Foundation funded were first-time grantees, receiving 3% of its grant dollars.

New vs renewed · share of each year

In FY2024, 97% of grant dollars renewed an existing relationship; $2k went to new ones.

50%100%’21’22’23’24
RenewedFirst-time

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

’21’22’23’24
Human ServicesHealthEducationOther
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 arriving21$403k14%
FY202419$81k21%
FY202318$259k11%
FY202223$9k43%
FY202114$53k29%
FY202020$220kn/a
92% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Health$562kEducation$370kReligion$81kPublic Benefit$4kHuman Services$2kPublic Safety & Disaster$860Housing & Shelter$600Civil Rights$450Other$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

IL
NY
MA
OH
CT
CA
CO
NE
KY
VA
MD
DC
GA
FL

Top grantees

Largest recipients by total granted, FY2020 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 26 grantees

What it could do for these grantees

Plus 17 recipients with no EIN on record ($589k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Patricia M and Robert H Martinsen Foundation supplied at peak.

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetColgate University: $360,000 over 3y, 0.1% of budgetRegional Hospice and Home Care of Western Connecticut Inc: $53,500 over 3y, 0.4% of budgetPhi Gamma Delta Educational Foundation Inc: $5,000 over 5y, 0.0% of budgetThe Carver Inc: $4,000 over 2y, 0.0% of budgetRvnahealth Inc: $2,700 over 2y, 0.0% of budgetJudicial Watch Inc: $1,200 over 6y, 0.0% of budgetNew Opportunities Inc: $1,000 over 1y, 0.0% of budgetDanbury Hospital & New Milford Hospital Foundation Inc: $1,000 over 1y, 0.0% of budgetStephen Siller Tunnel to Towers Foundation: $700 over 4y, 0.0% of budgetTax Foundation: $600 over 6y, 0.0% of budgetDisabled Veterans National Foundation: $530 over 6y, 0.0% of budgetThe Heritage Foundation: $500 over 3y, 0.0% of budgetAmerican Institute for Cancer Research: $450 over 4y, 0.0% of budgetNational Law Enforcement Officers Memorial Fund Inc: $410 over 5y, 0.0% of budgetState Policy Network: $350 over 4y, 0.0% of budgetThe Claremont Institute for the Study of Statesmanship & Political Philosophy: $200 over 1y, 0.0% of budgetBoys & Girls Club of Ridgefield: $200 over 2y, 0.0% of budgetAmerican Cancer Society Inc: $200 over 2y, 0.0% of budgetWounded Warrior Project Inc: $150 over 1y, 0.0% of budgetMedia Research Center: $100 over 1y, 0.0% of budgetCitizens United Foundation: $100 over 1y, 0.0% of budgetDavid Horowitz Freedom Center: $100 over 1y, 0.0% of budgetFather Flanagan's Boys' Home: $50 over 1y, 0.0% of budgetAmerican Federation of Police and Concerned Citizens Inc: $50 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.

Ruggles Family FoundationNY13.6× affinity4 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Ruggles Family Foundation · Union Savings Bank Foundation Inc · Fairfield County's Community Foundation Inc · Synchrony Foundation · The Ayco Charitable Foundation · Ge Aerospace Foundation · The Pfizer Foundation Inc · The Blackbaud Giving Fund · National Philanthropic Trust · American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc · Charities Aid Foundation America

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 Patricia M and Robert H Martinsen Foundation with peer funders

About The Patricia M and Robert H Martinsen Foundation

How much does The Patricia M and Robert H Martinsen Foundation give?
The Patricia M and Robert H Martinsen Foundation reported 21 grants totaling $402,900 in its FY2025 IRS filing. It funded between 14 and 23 organizations a year over FY2020 to FY2024.
What does The Patricia M and Robert H Martinsen Foundation fund?
By grant dollars over FY2020 to FY2025, its largest causes are Health (55%), Education (36%), Religion (8%).
Who are The Patricia M and Robert H Martinsen Foundation's largest grantees?
By total granted over FY2020 to FY2025: Colgate University ($360k), Regional Hospice and Home Care of Western Connecticut Inc ($54k), Phi Gamma Delta Educational Foundation Inc ($5k).
Does The Patricia M and Robert H Martinsen Foundation fund new organizations?
In FY2024, 21% of the organizations it funded were first-time grantees.
Does The Patricia M and Robert H Martinsen Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as The Patricia M and Robert H Martinsen Foundation?
Its strongest co-funders, measured against what their size predicts, include Ruggles Family Foundation, Union Savings Bank Foundation Inc, Fairfield County's Community Foundation Inc.
Where is The Patricia M and Robert H Martinsen Foundation based?
The Patricia M and Robert H Martinsen Foundation is based in CT.

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 43 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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