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Massachusetts · Private foundation

Caithness Foundation

Its FY2026 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$84k
Granted FY2026(still arriving)
46
Grants FY2026
43
Organizations funded FY2025
7%
First-time grantees FY2025
Read the full brief
Median grant, FY2026
$1,700
Largest grant, FY2026
$10,000
Organizations funded a year
37 to 43
FY2019 to FY2025
States reached, FY2026
11
Total assets, FY2026
$1.3M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2025, 7% of the organizations Caithness Foundation funded were first-time grantees, receiving 8% of its grant dollars.

New vs renewed · share of each year

In FY2025, 92% of grant dollars renewed an existing relationship; $6k went to new ones.

50%100%’19’20’21’22’23’24’25
RenewedFirst-time

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

’19’20’21’22’23’24’25
HealthInternationalEnvironmentEducationScience & TechAnimalsOther
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
FY2026still arriving46$84k7%
FY202543$77k7%
FY202442$77k5%
FY202340$73k3%
FY202242$81k7%
FY202141$82k2%
FY202040$73k8%
FY201937$73k27%
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.

International$152kEnvironment$113kScience & Tech$83kHealth$72kHuman Services$54kEducation$39kAnimals$38kArts & Culture$28kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

VT
MN
IL
NY
MA
IA
PA
CA
CO
MD
AR
DC
TX
FL

Top grantees

Largest recipients by total granted, FY2018 to FY2026, and the share of each one’s budget the grants supplied at peak.

Show all 41 grantees
All grantees of Caithness Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Oxfam-America Inc$90,50090%
Coalition for Children$49,900922%
Medecins Sans Frontieres USA Inc$33,60090%
United States Fund for Unicef$25,50080%
Green Center Inc$22,0001n/a
Woodwell Climate Research Center Inc$20,50070%
The Population Council Inc$16,75090%
Children's Hospital Corporation$15,25090%
American National Red Cross & Its Constituent Chapters and Branches$14,50080%
Dana-Farber Cancer Institute Inc$14,50080%
Wildaid Inc$13,40070%
Falmouth Service Center Inc$13,30090%
The 300 Committee Land Trust Inc$13,20090%
Rocky Mountain Institute$12,50090%
Mass General Brigham Incorporated$12,0009n/a
Environmental Defense Action Fund$11,50080%
Humane World for Animals International$11,00080%
Neighborhood Falmouth Inc$11,00091%
The Union of Concerned Scientists Inc$11,00070%
Natural Resources Defense Council Inc$10,70080%
Cape and Islands Self-Reliance Corporation Inc$10,50091%
Friends of Fairwinds Inc$9,50094%
The Samaritans on Cape Cod$9,00081%
Love Without Boundaries Foundation$8,90040%
Wikimedia Foundation Inc$8,00080%
Cape Cod Young Men's Christian Association Inc$8,00030%
The Sampson Fund for Veterinary Care Inc$7,90091%
William Marsh Rice University$7,50080%
Falmouth Academy Inc$7,50050%
American Friends of the Bugatti Trust Inc$7,00072%
People for Cats a Non-Profit Corporation$6,80091%
Historic Highfield Inc$6,00090%
Friends of Falmouth Dogs a Non Profit Corporation$4,30090%
Farm and Wilderness Foundation Inc$3,00030%
North Falmouth Elementary PTO$1,80013%
Waquoit Congregational Church$1,5001n/a
Pan-Massachusetts Challenge Inc$1,50030%
Happy Life Beagle Rescue Inc$1,0001n/a
Sea Education Association Inc$1,0001n/a
National Merit Scholarship Corporation$1,00020%
Falmouth Gun Safety Coalition Inc$1,0002n/a

What it could do for these grantees

Plus 19 recipients with no EIN on record ($183k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Caithness Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetOxfam-America Inc: $90,500 over 9y, 0.0% of budgetCoalition for Children: $49,900 over 9y, 22% of budgetMedecins Sans Frontieres USA Inc: $33,600 over 9y, 0.0% of budgetUnited States Fund for Unicef: $25,500 over 8y, 0.0% of budgetWoodwell Climate Research Center Inc: $20,500 over 7y, 0.0% of budgetThe Population Council Inc: $16,750 over 9y, 0.0% of budgetChildren's Hospital Corporation: $15,250 over 9y, 0.0% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $14,500 over 8y, 0.0% of budgetDana-Farber Cancer Institute Inc: $14,500 over 8y, 0.0% of budgetWildaid Inc: $13,400 over 7y, 0.1% of budgetFalmouth Service Center Inc: $13,300 over 9y, 0.1% of budgetThe 300 Committee Land Trust Inc: $13,200 over 9y, 0.3% of budgetRocky Mountain Institute: $12,500 over 9y, 0.0% of budgetEnvironmental Defense Action Fund: $11,500 over 8y, 0.0% of budgetHumane World for Animals International: $11,000 over 8y, 0.0% of budgetNeighborhood Falmouth Inc: $11,000 over 9y, 1.1% of budgetThe Union of Concerned Scientists Inc: $11,000 over 7y, 0.0% of budgetNatural Resources Defense Council Inc: $10,700 over 8y, 0.0% of budgetCape and Islands Self-Reliance Corporation Inc: $10,500 over 9y, 0.5% of budgetFriends of Fairwinds Inc: $9,500 over 9y, 4.1% of budgetThe Samaritans on Cape Cod: $9,000 over 8y, 0.5% of budgetLove Without Boundaries Foundation: $8,900 over 4y, 0.1% of budgetWikimedia Foundation Inc: $8,000 over 8y, 0.0% of budgetCape Cod Young Men's Christian Association Inc: $8,000 over 3y, 0.0% of budgetThe Sampson Fund for Veterinary Care Inc: $7,900 over 9y, 0.7% of budgetWilliam Marsh Rice University: $7,500 over 8y, 0.0% of budgetFalmouth Academy Inc: $7,500 over 5y, 0.0% of budgetAmerican Friends of the Bugatti Trust Inc: $7,000 over 7y, 2.1% of budgetPeople for Cats a Non-Profit Corporation: $6,800 over 9y, 0.8% of budgetHistoric Highfield Inc: $6,000 over 9y, 0.1% of budgetFriends of Falmouth Dogs a Non Profit Corporation: $4,300 over 9y, 0.5% of budgetFarm and Wilderness Foundation Inc: $3,000 over 3y, 0.0% of budgetNorth Falmouth Elementary PTO: $1,800 over 1y, 2.8% of budgetPan-Massachusetts Challenge Inc: $1,500 over 3y, 0.0% of budgetNational Merit Scholarship Corporation: $1,000 over 2y, 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 35.

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.

Cape Cod Foundation IncMA23.9× affinity9 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Cape Cod Foundation Inc · Stanley W Watson Foundation · Martha's Vineyard Bank Charitable Foundation Inc · Cape Cod Five Cents Savings Bank Charitable Foundation Trust · Mutual Bancorp Foundation Inc Fka Cape Cod 5 Foundation Inc · Harken Foundation · Lovell Charitable Foundation · Malcolm and Elizabeth Fraser Foundation Inc · The Future Hope Foundation · Esther Simon 1952 Charitable Trust Xxxxx8006 · Lyndon Paul Lorusso Charitable Foundatio · The Baltimore Family Fund

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 Caithness Foundation with peer funders

About Caithness Foundation

How much does Caithness Foundation give?
Caithness Foundation reported 46 grants totaling $84,000 in its FY2026 IRS filing. It funded between 37 and 43 organizations a year over FY2019 to FY2025.
What does Caithness Foundation fund?
By grant dollars over FY2018 to FY2026, its largest causes are International (24%), Environment (18%), Science & Tech (13%).
Who are Caithness Foundation's largest grantees?
By total granted over FY2018 to FY2026: Oxfam-America Inc ($91k), Coalition for Children ($50k), Medecins Sans Frontieres USA Inc ($34k).
Does Caithness Foundation fund new organizations?
In FY2025, 7% of the organizations it funded were first-time grantees.
Does Caithness 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 Caithness Foundation?
Its strongest co-funders, measured against what their size predicts, include Cape Cod Foundation Inc, Stanley W Watson Foundation, Martha's Vineyard Bank Charitable Foundation Inc.
Where is Caithness Foundation based?
Caithness Foundation is based in MA.

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 60 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 2026, released 2026. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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