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Massachusetts · Private foundation

Karp Family Foundation Stephen R and Jill E Karp Trustees

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.

$2.0M
Granted FY2025(still arriving)
31
Grants FY2025
73
Organizations funded FY2024
67%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$20,000
Largest grant, FY2025
$500,000
Organizations funded a year
13 to 73
FY2021 to FY2024
States reached, FY2025
5
Total assets, FY2025
$918k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 67% of the organizations Karp Family Foundation Stephen R and Jill E Karp Trustees funded were first-time grantees, receiving 22% of its grant dollars.

New vs renewed · share of each year

In FY2024, 78% of grant dollars renewed an existing relationship; $759k went to new ones.

50%100%’22’23’24
RenewedFirst-time

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

’22’23’24
Arts & CultureEducationHuman ServicesHealthPhilanthropyAnimalsOther
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 arriving29$2.0M24%
FY202473$3.5M67%
FY202327$3.9M48%
FY202213$1.5M31%
FY202129$1.9Mn/a
98% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2025.

Youth Development$3.5MHealth$3.4MArts & Culture$2.5MEducation$2.2MPhilanthropy$1.7MReligion$288kHuman Services$164kHousing & Shelter$143kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
WA
NY
MA
OH
MD
NC
FL

Top grantees

Largest recipients by total granted, FY2021 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 76 grantees
All grantees of Karp Family Foundation Stephen R and Jill E Karp Trustees by total granted
GranteeTotal grantedYearsShare of their budget
Boston Youth Sanctuary Inc$3,363,830576%
Facing History & Ourselves Inc$2,015,00042%
Children's Hospital Corporation$2,000,00020%
Lahey Clinic Inc$300,00020%
Theatre Workshop of Nantucket Inc$205,00053%
Beth Israel Deaconess Medical Center Inc$200,00010%
Belmont Hill School Inc$162,50030%
Boston Medical Center Corporation$125,00040%
Perkins School for the Blind$125,00050%
Dana-Farber Cancer Institute Inc$110,00030%
Hospitality Homes Inc$100,00032%
Crossroads for Kids Inc$75,00021%
Our Generation Speaks Inc$60,00015%
Getting to We$59,000231%
New England Life Flight Inc$50,00010%
Nantucket Film Foundation Inc$42,50033%
Children's Trust Inc$40,00042%
Nantucket Golf Club Foundation Inc$36,00021%
Museum of Fine Arts$36,00030%
New England Baptist Hospital$35,00020%
Lesley University$25,00010%
Trustees of Boston University$25,00010%
Mass General Brigham Incorporated$25,0001n/a
Biomedical Science Careers Program Inc$25,00012%
Boston Charitable Trust Fund City of Boston Trust Office$25,00011%
Bridge Over Troubled Waters Inc$20,00020%
Pine Street Inn Inc$20,00010%
Hebrew Senior Life Inc$20,00010%
Boys & Girls Clubs of Boston Inc$20,00020%
Nantucket Safe Harbor for Animals Inc$20,00020%
Spoonfuls$20,00020%
Nantucket Lighthouse School Inc$20,00021%
Cradles to Crayons Inc$20,00010%
Boston Symphony Orchestra Inc$15,00020%
Team Impact Inc$15,00020%
Grub Street Inc$14,00020%
Freshman Fresh Start Inc$11,00028%
Nantucket Maria Mitchell Association In$10,00010%
Mayyim Hayyim Living Waters Community Mikveh and Educ Cent Inc$10,0001n/a
Catholic Schools Foundation Inc$10,00010%
Ellis Early Learning Inc$10,00010%
Nicklaus Children's Health Care Foundation$10,00020%
New England Aquarium Corporation$10,00010%
Cape Ann Museum Inc$10,00010%
iRise Above Foundation$10,00025%
Nantucket Book Foundation Inc$10,00012%
Horizons for Homeless Children$10,00010%
Emerson College$10,00020%
Nantucket Conservation Foundation Inc$10,00020%
The Second Step Inc$10,00010%
John Winthrop Nursery School Corporation$7,00020%
Nantucket Comedy Festival Inc$6,21622%
Family Movement$5,00013%
Huntington Theatre Co Inc$5,00010%
Nantucket Preservation Trust Inc$5,00010%
New England Community Services Inc$5,00010%
Alexander Twilight Academy Inc$5,00010%
Museum of African American History Inc$5,00010%
Heading Home Inc$5,00010%
Nantucket Community Television Inc$5,0001n/a
Nantucket Historical Association$5,00010%
A Safe Place Inc$3,00010%
Nantucket Partnership for Children Inc$3,00010%
Familyaid Boston Inc$2,50010%
Nantucket Interfaith Council$2,5001n/a
Nantucket Atheneum Inc$2,5001n/a
The National Mentoring Partnership Inc$2,00020%
Brothers for Life$1,00010%
The Ability Experience$1,00010%
Artists Association of Nantucket Inc$1,00010%
Marine Mammal Alliance Nantucket$1,00011%
The Childrens Museum$1,00010%
Nantucket Center for Elder Affairs Inc$1,00011%
National Brain Tumor Society Inc$1,00010%
Nantucket Boys and Girls Club Inc$80010%
Dana-Farber Inc$10010%

What it could do for these grantees

Plus 26 recipients with no EIN on record ($3.1M), not named here.

Where it is load-bearing

Karp Family Foundation Stephen R and Jill E Karp Trustees supplied at least a quarter of the budget for 2 of its grantees at some point. The chart plots its 71 largest grantees; load-bearing ones sit top left.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetBoston Youth Sanctuary Inc: $3,363,830 over 5y, 76% of budgetFacing History & Ourselves Inc: $2,015,000 over 4y, 1.6% of budgetChildren's Hospital Corporation: $2,000,000 over 2y, 0.1% of budgetLahey Clinic Inc: $300,000 over 2y, 0.1% of budgetTheatre Workshop of Nantucket Inc: $205,000 over 5y, 2.6% of budgetBeth Israel Deaconess Medical Center Inc: $200,000 over 1y, 0.0% of budgetBelmont Hill School Inc: $162,500 over 3y, 0.1% of budgetBoston Medical Center Corporation: $125,000 over 4y, 0.0% of budgetPerkins School for the Blind: $125,000 over 5y, 0.0% of budgetDana-Farber Cancer Institute Inc: $110,000 over 3y, 0.0% of budgetHospitality Homes Inc: $100,000 over 3y, 2.5% of budgetCrossroads for Kids Inc: $75,000 over 2y, 0.8% of budgetOur Generation Speaks Inc: $60,000 over 1y, 5.2% of budgetGetting to We: $59,000 over 2y, 31% of budgetNew England Life Flight Inc: $50,000 over 1y, 0.1% of budgetNantucket Film Foundation Inc: $42,500 over 3y, 3.2% of budgetChildren's Trust Inc: $40,000 over 4y, 1.6% of budgetNantucket Golf Club Foundation Inc: $36,000 over 2y, 0.5% of budgetMuseum of Fine Arts: $36,000 over 3y, 0.0% of budgetNew England Baptist Hospital: $35,000 over 2y, 0.0% of budgetLesley University: $25,000 over 1y, 0.0% of budgetTrustees of Boston University: $25,000 over 1y, 0.0% of budgetBiomedical Science Careers Program Inc: $25,000 over 1y, 1.8% of budgetBoston Charitable Trust Fund City of Boston Trust Office: $25,000 over 1y, 0.6% of budgetBridge Over Troubled Waters Inc: $20,000 over 2y, 0.1% of budgetPine Street Inn Inc: $20,000 over 1y, 0.0% of budgetHebrew Senior Life Inc: $20,000 over 1y, 0.1% of budgetBoys & Girls Clubs of Boston Inc: $20,000 over 2y, 0.0% of budgetNantucket Safe Harbor for Animals Inc: $20,000 over 2y, 0.2% of budgetSpoonfuls: $20,000 over 2y, 0.1% of budgetNantucket Lighthouse School Inc: $20,000 over 2y, 0.5% of budgetCradles to Crayons Inc: $20,000 over 1y, 0.1% of budgetBoston Symphony Orchestra Inc: $15,000 over 2y, 0.0% of budgetTeam Impact Inc: $15,000 over 2y, 0.1% of budgetGrub Street Inc: $14,000 over 2y, 0.1% of budgetFreshman Fresh Start Inc: $11,000 over 2y, 7.5% of budgetNantucket Maria Mitchell Association In: $10,000 over 1y, 0.3% of budgetCatholic Schools Foundation Inc: $10,000 over 1y, 0.0% of budgetEllis Early Learning Inc: $10,000 over 1y, 0.1% of budgetNicklaus Children's Health Care Foundation: $10,000 over 2y, 0.0% of budgetNew England Aquarium Corporation: $10,000 over 1y, 0.0% of budgetCape Ann Museum Inc: $10,000 over 1y, 0.1% of budgetiRise Above Foundation: $10,000 over 2y, 4.7% of budgetNantucket Book Foundation Inc: $10,000 over 1y, 2.0% of budgetHorizons for Homeless Children: $10,000 over 1y, 0.1% of budgetEmerson College: $10,000 over 2y, 0.0% of budgetNantucket Conservation Foundation Inc: $10,000 over 2y, 0.0% of budgetThe Second Step Inc: $10,000 over 1y, 0.2% 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 71.

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.

Community Foundation for Nantucket IncMA38.7× affinity16 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Community Foundation for Nantucket Inc · Boston Foundation Inc · Combined Jewish Philanthropies of Greater Boston Inc · Nantucket Golf Club Foundation Inc · Ernst & Elfriede Frank Foundation Inc · Eastern Bank Foundation · Mutual Bancorp Foundation Inc Fka Cape Cod 5 Foundation Inc · Rockland Trust - Blue Hills Charitable Foundation · The Hartman Family Foundation · Cape Cod Five Cents Savings Bank Charitable Foundation Trust · The Ayco Charitable Foundation · Clara Foundation Inc

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 Karp Family Foundation Stephen R and Jill E Karp Trustees with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Karp Family Foundation Stephen R and Jill E Karp Trustees?

Find your warmest path to Karp Family Foundation Stephen R and Jill E Karp Trustees 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 Karp Family Foundation Stephen R and Jill E Karp Trustees

How much does Karp Family Foundation Stephen R and Jill E Karp Trustees give?
Karp Family Foundation Stephen R and Jill E Karp Trustees reported 31 grants totaling $2,012,884 in its FY2025 IRS filing. It funded between 13 and 73 organizations a year over FY2021 to FY2024.
What does Karp Family Foundation Stephen R and Jill E Karp Trustees fund?
By grant dollars over FY2021 to FY2025, its largest causes are Youth Development (25%), Health (24%), Arts & Culture (17%).
Who are Karp Family Foundation Stephen R and Jill E Karp Trustees's largest grantees?
By total granted over FY2021 to FY2025: Boston Youth Sanctuary Inc ($3.4M), Facing History & Ourselves Inc ($2.0M), Children's Hospital Corporation ($2.0M).
Does Karp Family Foundation Stephen R and Jill E Karp Trustees fund new organizations?
In FY2024, 67% of the organizations it funded were first-time grantees.
Does Karp Family Foundation Stephen R and Jill E Karp Trustees 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 Karp Family Foundation Stephen R and Jill E Karp Trustees?
Its strongest co-funders, measured against what their size predicts, include Community Foundation for Nantucket Inc, Boston Foundation Inc, Combined Jewish Philanthropies of Greater Boston Inc.
Where is Karp Family Foundation Stephen R and Jill E Karp Trustees based?
Karp Family Foundation Stephen R and Jill E Karp Trustees 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 106 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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