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New Hampshire · Private foundation

Natalie W & Leo E Wolf 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.

$41k
Granted FY2025(still arriving)
44
Grants FY2025
44
Organizations funded FY2024
27%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$303
Largest grant, FY2025
$8,300
Organizations funded a year
12 to 44
FY2018 to FY2024
States reached, FY2025
7
Total assets, FY2025
$587k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 27% of the organizations Natalie W & Leo E Wolf Foundation funded were first-time grantees, receiving 16% of its grant dollars.

New vs renewed · share of each year

In FY2024, 84% of grant dollars renewed an existing relationship; $5k 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 & CultureEducationHealthHousing & ShelterPhilanthropyReligionOther
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 arriving44$41k20%
FY202444$33k27%
FY202335$24k26%
FY202231$56k19%
FY202133$75k70%
FY202018$43k56%
FY201912$8k17%
FY201837$30k24%
98% classified

What it funded, over time

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

Education$127kHealth$86kArts & Culture$43kReligion$37kEnvironment$25kFood & Nutrition$8kRecreation & Sports$7kHuman Services$6kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
VT
NH
IL
MI
NY
MA
OH
PA
NJ
CA
NE
MO
MD
AZ
TN
DC
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
The Cambridge School of Weston Inc$110,54780%
Dana-Farber Cancer Institute Inc$26,16880%
Lake Sunapee Protective Association$16,00081%
Mass General Brigham Incorporated$15,2004n/a
Temple Beth Elohim$14,8176n/a
Temple Beth Jacob$13,2046n/a
The New London Hospital Association Inc$9,00280%
Ausbon Sargent Land Preservation Trust$8,25080%
United Church Funds Inc$7,7501n/a
Meeting House Child Care Center Inc$5,15050%
Show all 64 grantees
All grantees of Natalie W & Leo E Wolf Foundation by total granted
GranteeTotal grantedYearsShare of their budget
The Cambridge School of Weston Inc$110,54780%
Dana-Farber Cancer Institute Inc$26,16880%
Lake Sunapee Protective Association$16,00081%
Mass General Brigham Incorporated$15,2004n/a
Temple Beth Elohim$14,8176n/a
Temple Beth Jacob$13,2046n/a
The New London Hospital Association Inc$9,00280%
Ausbon Sargent Land Preservation Trust$8,25080%
United Church Funds Inc$7,7501n/a
Meeting House Child Care Center Inc$5,15050%
Proctor Academy$4,00030%
Children's Hospital Corporation$3,60040%
2life Communities Inc$3,03040%
Russell Sage College$2,40050%
Museum of Fine Arts$2,01070%
Montshire Museum of Science Inc$2,00020%
The Lenny Zakim Fund$1,30050%
Society for the Protection of New Hampshire Forests$80050%
John Hay Estate at the Fells$75020%
New London Barn Playhouse Inc$75030%
Planned Parenthood of Northern New England Inc$55020%
WGBH Educational Foundation$51060%
The Michael J Fox Foundation for Parkinson's Research$50320%
Dartmouth-Hitchcock Health$50010%
Russell Sage College Alumnae Assoc$5001n/a
Boston Center for the Arts Inc$50020%
Vermont Student Development Fund Inc$40010%
Community Gallery Inc$40030%
New Hampshire Furniture Masters Association$3601n/a
New England Ski Museum Inc$35020%
Friends of the Israel Defense Forces$30010%
Medecins Sans Frontieres USA Inc$26020%
Opera North$25020%
Square One Community Inc$25010%
Special Olympics Massachusetts Inc$20020%
Ohio State University Foundation$20010%
Newton Police Memorial Association$20020%
American National Red Cross & Its Constituent Chapters and Branches$20020%
New Hampshire Public Broadcasting$19020%
The Longboat Key Education Center Inc$18030%
Buckingham Browne & Nichols School$15010%
Peabody Essex Museum Inc$13520%
Hospitality Homes Inc$12520%
National Brain Tumor Society Inc$10220%
Boston Arts Academy Foundation Inc$10010%
Waban Improvement Society Inc$10010%
New Hampshire Lakes Association Inc$10010%
Hebrew Senior Life Inc$10020%
Massachusetts Horticultural Society$10010%
Ovations for the Cure Inc$10010%
Fresh Air Fund$10010%
Fuller Craft Museum Inc$8020%
American Lung Association$5010%
Silent Spring Institute Inc$5010%
Friends of Newbury Public Library Inc$501n/a
Community Servings Inc$5010%
Jewish Alliance for Law and Social Action Inc$501n/a
St Jude Children's Research Hospital Inc$5010%
American Heart Association Inc$3010%
Greater Boston Food Bank Inc$2510%
Rosie's Place Inc$2510%
New Hampshire Catholic Charities$2510%
National Arbor Day Foundation$2510%
AARP Foundation$1610%

What it could do for these grantees

Plus 60 recipients with no EIN on record ($97k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Natalie W & Leo E Wolf Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetThe Cambridge School of Weston Inc: $110,547 over 8y, 0.2% of budgetDana-Farber Cancer Institute Inc: $26,168 over 8y, 0.0% of budgetLake Sunapee Protective Association: $16,000 over 8y, 0.7% of budgetThe New London Hospital Association Inc: $9,002 over 8y, 0.0% of budgetAusbon Sargent Land Preservation Trust: $8,250 over 8y, 0.3% of budgetMeeting House Child Care Center Inc: $5,150 over 5y, 0.1% of budgetProctor Academy: $4,000 over 3y, 0.0% of budgetChildren's Hospital Corporation: $3,600 over 4y, 0.0% of budget2life Communities Inc: $3,030 over 4y, 0.0% of budgetRussell Sage College: $2,400 over 5y, 0.0% of budgetMuseum of Fine Arts: $2,010 over 7y, 0.0% of budgetMontshire Museum of Science Inc: $2,000 over 2y, 0.0% of budgetThe Lenny Zakim Fund: $1,300 over 5y, 0.0% of budgetSociety for the Protection of New Hampshire Forests: $800 over 5y, 0.0% of budgetJohn Hay Estate at the Fells: $750 over 2y, 0.1% of budgetNew London Barn Playhouse Inc: $750 over 3y, 0.0% of budgetPlanned Parenthood of Northern New England Inc: $550 over 2y, 0.0% of budgetWGBH Educational Foundation: $510 over 6y, 0.0% of budgetThe Michael J Fox Foundation for Parkinson's Research: $503 over 2y, 0.0% of budgetDartmouth-Hitchcock Health: $500 over 1y, 0.0% of budgetBoston Center for the Arts Inc: $500 over 2y, 0.0% of budgetVermont Student Development Fund Inc: $400 over 1y, 0.0% of budgetCommunity Gallery Inc: $400 over 3y, 0.0% of budgetNew England Ski Museum Inc: $350 over 2y, 0.1% of budgetFriends of the Israel Defense Forces: $300 over 1y, 0.0% of budgetMedecins Sans Frontieres USA Inc: $260 over 2y, 0.0% of budgetOpera North: $250 over 2y, 0.0% of budgetSquare One Community Inc: $250 over 1y, 0.2% of budgetSpecial Olympics Massachusetts Inc: $200 over 2y, 0.0% of budgetOhio State University Foundation: $200 over 1y, 0.0% of budgetNewton Police Memorial Association: $200 over 2y, 0.1% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $200 over 2y, 0.0% of budgetNew Hampshire Public Broadcasting: $190 over 2y, 0.0% of budgetThe Longboat Key Education Center Inc: $180 over 3y, 0.0% of budgetBuckingham Browne & Nichols School: $150 over 1y, 0.0% of budgetPeabody Essex Museum Inc: $135 over 2y, 0.0% of budgetHospitality Homes Inc: $125 over 2y, 0.0% of budgetNational Brain Tumor Society Inc: $102 over 2y, 0.0% of budgetBoston Arts Academy Foundation Inc: $100 over 1y, 0.0% of budgetWaban Improvement Society Inc: $100 over 1y, 0.1% of budgetNew Hampshire Lakes Association Inc: $100 over 1y, 0.0% of budgetHebrew Senior Life Inc: $100 over 2y, 0.0% of budgetMassachusetts Horticultural Society: $100 over 1y, 0.0% of budgetOvations for the Cure Inc: $100 over 1y, 0.1% of budgetFresh Air Fund: $100 over 1y, 0.0% of budgetFuller Craft Museum Inc: $80 over 2y, 0.0% of budgetAmerican Lung Association: $50 over 1y, 0.0% of budgetSilent Spring Institute 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 56.

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.

Boston Foundation IncMA32.4× affinity17 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Boston Foundation Inc · New Hampshire Charitable Foundation · Combined Jewish Philanthropies of Greater Boston Inc · Ibm International Foundation · Eastern Bank Foundation · Ge Aerospace Foundation · Dulude Family Foundation Inc · Barrette Family Fund · Highland Street Connection and Subsidiaries · Schimberg Family Charitable Foundation · The Burkehaven Family Foundation · Hjd 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 Natalie W & Leo E Wolf Foundation with peer funders

About Natalie W & Leo E Wolf Foundation

How much does Natalie W & Leo E Wolf Foundation give?
Natalie W & Leo E Wolf Foundation reported 44 grants totaling $41,444 in its FY2025 IRS filing. It funded between 12 and 44 organizations a year over FY2018 to FY2024.
What does Natalie W & Leo E Wolf Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Education (36%), Health (24%), Arts & Culture (12%).
Who are Natalie W & Leo E Wolf Foundation's largest grantees?
By total granted over FY2017 to FY2025: The Cambridge School of Weston Inc ($111k), Dana-Farber Cancer Institute Inc ($26k), Lake Sunapee Protective Association ($16k).
Does Natalie W & Leo E Wolf Foundation fund new organizations?
In FY2024, 27% of the organizations it funded were first-time grantees.
Does Natalie W & Leo E Wolf 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 Natalie W & Leo E Wolf Foundation?
Its strongest co-funders, measured against what their size predicts, include Boston Foundation Inc, New Hampshire Charitable Foundation, Combined Jewish Philanthropies of Greater Boston Inc.
Where is Natalie W & Leo E Wolf Foundation based?
Natalie W & Leo E Wolf Foundation is based in NH.

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 125 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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