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Massachusetts · Private foundation

Sibley-Saltonstall Charitable 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.

$452k
Granted FY2025(still arriving)
66
Grants FY2025
62
Organizations funded FY2024
15%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$5,000
Largest grant, FY2025
$30,000
Organizations funded a year
51 to 64
FY2018 to FY2024
States reached, FY2025
19
Total assets, FY2025
$3.9M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 15% of the organizations Sibley-Saltonstall Charitable Foundation funded were first-time grantees, receiving 17% of its grant dollars.

New vs renewed · share of each year

In FY2024, 83% of grant dollars renewed an existing relationship; $76k 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
Human ServicesEnvironmentEducationPublic BenefitFood & NutritionAnimalsOther
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 arriving65$450k9%
FY202462$450k15%
FY202364$460k13%
FY202262$474k42%
FY202157$309k16%
FY202056$309k20%
FY201951$243k18%
FY201854$213k13%
97% classified

What it funded, over time

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

Environment$561kHealth$474kHuman Services$391kEducation$247kHousing & Shelter$195kFood & Nutrition$180kArts & Culture$170kAnimals$166kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
MN
IL
WI
NY
MA
WY
IA
IN
PA
NJ
CT
CA
UT
CO
MO
VA
MD
KS
AR
NC
DC
HI
OK
GA
TX
FL

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
MaineHealth$203,00090%
Flagler College Inc$100,00040%
Project Grace$90,000911%
Cathedral Home for Children$89,50030%
Ketcha Outdoors$83,00092%
Maine Audubon Society$80,00090%
Schoodic Institute at Acadia National Park$75,00091%
Island Institute$73,50090%
Portland Museum of Art$61,50090%
North Florida Land Trust Inc$56,75070%
Show all 94 grantees
All grantees of Sibley-Saltonstall Charitable Foundation by total granted
GranteeTotal grantedYearsShare of their budget
MaineHealth$203,00090%
Flagler College Inc$100,00040%
Project Grace$90,000911%
Cathedral Home for Children$89,50030%
Ketcha Outdoors$83,00092%
Maine Audubon Society$80,00090%
Schoodic Institute at Acadia National Park$75,00091%
Island Institute$73,50090%
Portland Museum of Art$61,50090%
North Florida Land Trust Inc$56,75070%
Good Shepherd Food Bank$53,00090%
All Faiths Food Bank Inc$49,00060%
Gary Sinise Foundation$49,00060%
Flagler Health Care Foundation Inc$48,00061%
Ocean Conservancy$45,00090%
Preble Street$43,00090%
Carolina Day School Inc$42,00040%
Laurel Civic Association Inc$41,00081%
The Root Cellar$40,00091%
A Place Called Home$38,00040%
Dana-Farber Cancer Institute Inc$37,50050%
The Inn Between$37,00041%
Riding to the Top$37,00091%
Boys and Girls Club of Northeast Florida Inc$35,00070%
World Central Kitchen Inc$34,00040%
Rocky Mountain Bird Observatory$34,00050%
Mental Health America Inc$30,00030%
Southern Appalachian Highlands Conservancy$27,50040%
Through These Doors$27,00050%
Mikeroweworks Foundation$26,00040%
Maine Maritime Museum$26,00040%
Missouri Prairie Foundation$26,00031%
United Way Inc$25,00050%
Baptist Health Foundation Inc$25,0001n/a
Woman's Exchange of St Augustine Inc$24,00058%
Punahou School$21,50090%
Hanahauoli School$21,50090%
Big Waters Land Trust Inc$20,00020%
Fisher House Foundation Inc$20,00090%
Mote Marine Foundation Inc$20,00021%
Natural Resources Council of Maine Inc$20,00050%
Los Angeles Regional Food Bank$20,00020%
New London Homeless Hospitality Center$20,00050%
Spirit of America Worldwide$20,00020%
Friends of Scarborough Marsh$18,500422%
One Simple Wish Inc$15,50030%
American Cancer Society Inc$15,00030%
The William a Farnsworth Library and Art Museum Inc$15,00090%
Environmental Defense Fund Incorporated$15,00030%
Camp Sunshine at Sebago Lake Inc$15,00090%
United Through Reading$14,50020%
The Land Institute$14,25020%
Folds of Honor Foundation$13,50060%
Colorado Beagle Rescue$13,50053%
Rodale Institute$13,00030%
Sierra Club Foundation$12,50050%
National Wildlife Federation$12,50050%
World Wildlife Fund Inc$12,50050%
National Alliance for Research on Schizophrenia and Depression$12,00040%
Coastal Maine Botanical Gardens Inc$11,00090%
Maine Seacoast Mission$11,00030%
Lightner Museum$11,00030%
Veterans Community Project$11,00020%
Phippsburg Land Trust$11,00073%
Project Night Night$10,25021%
Saint Albans Episcopal Church$10,0002n/a
Kennebec Estuary Land Trust$10,00040%
Children First Inc$10,00010%
Pine Tree Society Inc$10,00020%
Stephen Siller Tunnel to Towers Foundation$10,00040%
Chocolate Church Arts Center$8,00041%
Yale University$7,5003n/a
Iowa Natural Heritage Foundation$7,50010%
The Time Is Now to Help Inc$7,5003n/a
Feeding America$7,00010%
Covenant House$7,00020%
Alternatives to Violence Inc$6,00010%
National Military Family Association$6,00020%
Loving Hands Childrens Home$5,00013%
Apifera Farm Inc$5,0001n/a
Natural Resources Defense Council Inc$5,00020%
Friends of Acadia$5,00020%
Iyg Inc$5,00010%
Scarborough Public Library$5,00010%
National Audubon Society Inc$5,00020%
Travis Mills Foundation$5,00010%
Connecticut Audubon Society Inc$4,50030%
Literacy Council of Highlands Inc$4,00030%
Freedom Service Dogs Inc$2,50010%
Horizons for Homeless Children$2,00010%
Mission K9 Rescue Inc$2,00010%
Old Lyme Land Trust Inc$1,50011%
Safe Pet Rescue Inc$1,00010%
Outreach United Resource Center Inc$1,00010%

What it could do for these grantees

Plus 40 recipients with no EIN on record ($683k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Sibley-Saltonstall Charitable Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetMaineHealth: $203,000 over 9y, 0.0% of budgetFlagler College Inc: $100,000 over 4y, 0.0% of budgetProject Grace: $90,000 over 9y, 11% of budgetCathedral Home for Children: $89,500 over 3y, 0.4% of budgetKetcha Outdoors: $83,000 over 9y, 1.8% of budgetMaine Audubon Society: $80,000 over 9y, 0.4% of budgetSchoodic Institute at Acadia National Park: $75,000 over 9y, 0.6% of budgetIsland Institute: $73,500 over 9y, 0.2% of budgetPortland Museum of Art: $61,500 over 9y, 0.1% of budgetNorth Florida Land Trust Inc: $56,750 over 7y, 0.4% of budgetGood Shepherd Food Bank: $53,000 over 9y, 0.0% of budgetAll Faiths Food Bank Inc: $49,000 over 6y, 0.0% of budgetGary Sinise Foundation: $49,000 over 6y, 0.1% of budgetFlagler Health Care Foundation Inc: $48,000 over 6y, 1.3% of budgetOcean Conservancy: $45,000 over 9y, 0.0% of budgetPreble Street: $43,000 over 9y, 0.0% of budgetCarolina Day School Inc: $42,000 over 4y, 0.1% of budgetLaurel Civic Association Inc: $41,000 over 8y, 1.2% of budgetThe Root Cellar: $40,000 over 9y, 0.7% of budgetA Place Called Home: $38,000 over 4y, 0.3% of budgetDana-Farber Cancer Institute Inc: $37,500 over 5y, 0.0% of budgetThe Inn Between: $37,000 over 4y, 0.5% of budgetRiding to the Top: $37,000 over 9y, 0.9% of budgetBoys and Girls Club of Northeast Florida Inc: $35,000 over 7y, 0.1% of budgetWorld Central Kitchen Inc: $34,000 over 4y, 0.0% of budgetRocky Mountain Bird Observatory: $34,000 over 5y, 0.1% of budgetMental Health America Inc: $30,000 over 3y, 0.1% of budgetSouthern Appalachian Highlands Conservancy: $27,500 over 4y, 0.1% of budgetThrough These Doors: $27,000 over 5y, 0.3% of budgetMikeroweworks Foundation: $26,000 over 4y, 0.2% of budgetMaine Maritime Museum: $26,000 over 4y, 0.3% of budgetMissouri Prairie Foundation: $26,000 over 3y, 0.6% of budgetUnited Way Inc: $25,000 over 5y, 0.1% of budgetWoman's Exchange of St Augustine Inc: $24,000 over 5y, 7.8% of budgetPunahou School: $21,500 over 9y, 0.0% of budgetHanahauoli School: $21,500 over 9y, 0.1% of budgetBig Waters Land Trust Inc: $20,000 over 2y, 0.3% of budgetFisher House Foundation Inc: $20,000 over 9y, 0.0% of budgetMote Marine Foundation Inc: $20,000 over 2y, 0.8% of budgetNatural Resources Council of Maine Inc: $20,000 over 5y, 0.1% of budgetLos Angeles Regional Food Bank: $20,000 over 2y, 0.0% of budgetNew London Homeless Hospitality Center: $20,000 over 5y, 0.2% of budgetSpirit of America Worldwide: $20,000 over 2y, 0.0% of budgetFriends of Scarborough Marsh: $18,500 over 4y, 22% of budgetOne Simple Wish Inc: $15,500 over 3y, 0.2% of budgetAmerican Cancer Society Inc: $15,000 over 3y, 0.0% of budgetThe William a Farnsworth Library and Art Museum Inc: $15,000 over 9y, 0.1% of budgetEnvironmental Defense Fund Incorporated: $15,000 over 3y, 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 89.

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 IncME30.3× affinity15 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Maine Community Foundation Inc · Saco & Biddeford Savings Charitable Foundation · Phineas W Sprague Memorial Foundation · Davis Conservation Foundation · Onion Foundation · Libra Foundation · The Widgeon Point Charitable Foundation · Morton-Kelly Charitable Trust · Elmina B Sewall Foundation · Ibm International Foundation · Sam L Cohen Foundation · Fisher Charitable 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 Sibley-Saltonstall Charitable Foundation with peer funders

About Sibley-Saltonstall Charitable Foundation

How much does Sibley-Saltonstall Charitable Foundation give?
Sibley-Saltonstall Charitable Foundation reported 66 grants totaling $452,000 in its FY2025 IRS filing. It funded between 51 and 64 organizations a year over FY2018 to FY2024.
What does Sibley-Saltonstall Charitable Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Environment (18%), Health (15%), Human Services (12%).
Who are Sibley-Saltonstall Charitable Foundation's largest grantees?
By total granted over FY2017 to FY2025: MaineHealth ($203k), Flagler College Inc ($100k), Project Grace ($90k).
Does Sibley-Saltonstall Charitable Foundation fund new organizations?
In FY2024, 15% of the organizations it funded were first-time grantees.
Does Sibley-Saltonstall Charitable 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 Sibley-Saltonstall Charitable Foundation?
Its strongest co-funders, measured against what their size predicts, include Maine Community Foundation Inc, Saco & Biddeford Savings Charitable Foundation, Phineas W Sprague Memorial Foundation.
Where is Sibley-Saltonstall Charitable Foundation based?
Sibley-Saltonstall Charitable 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 136 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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