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Pennsylvania · Private foundation

Kilduff Family 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.

$40k
Granted FY2025(still arriving)
15
Grants FY2025
15
Organizations funded FY2024
7%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$1,000
Largest grant, FY2025
$11,000
Organizations funded a year
15 to 17
FY2019 to FY2024
States reached, FY2025
6
Total assets, FY2025
$883k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 7% of the organizations Kilduff Family Foundation funded were first-time grantees, receiving 2% of its grant dollars.

New vs renewed · share of each year

In FY2024, 98% of grant dollars renewed an existing relationship; $550 went to new ones.

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

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

’20’21’22’23’24
EducationArts & CultureOther
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 arriving14$38k0%
FY202415$34k7%
FY202316$40k6%
FY202216$39k6%
FY202115$33k7%
FY202016$30k6%
FY201917$28kn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2025.

Education$100kArts & Culture$70kRecreation & Sports$23kPublic Safety & Disaster$21kHealth$16kEnvironment$9kPhilanthropy$9kReligion$2kOther$0

Top grantees

Largest recipients by total granted, FY2019 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Eagles Mere Air Museum Foundation$54,000727%
Aero Club of Pennsylvania Memorial Scholarship Fund$43,000528%
Angel Flight East$16,30070%
The Aopa Foundation Inc$15,00070%
Gonzaga College High School$12,0007n/a
Wissahickon Garden Club$9,00075%
The Woodlynde School Corporation$6,50070%
Centre Square Fire Company$6,00070%
Jill Just Wants 2 Help$5,500621%
Corinthian Sailing Foundation Inc$5,0005n/a
Show all 16 grantees
All grantees of Kilduff Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Eagles Mere Air Museum Foundation$54,000727%
Aero Club of Pennsylvania Memorial Scholarship Fund$43,000528%
Angel Flight East$16,30070%
The Aopa Foundation Inc$15,00070%
Gonzaga College High School$12,0007n/a
Wissahickon Garden Club$9,00075%
The Woodlynde School Corporation$6,50070%
Centre Square Fire Company$6,00070%
Jill Just Wants 2 Help$5,500621%
Corinthian Sailing Foundation Inc$5,0005n/a
Springside Chestnut Hill Academy$3,40010%
Corinthian Historical Foundation$3,00057%
Ursinus College$2,00030%
Plymouth Little League$2,00021%
American Helicopter Museum & Educat Center Inc$1,55020%
Bududa America Foundation$10010%

What it could do for these grantees

Plus 6 recipients with no EIN on record ($58k), not named here.

Where it is load-bearing

Kilduff Family Foundation supplied at least a quarter of the budget for 2 of its grantees at some point. The chart plots its 14 largest grantees; load-bearing ones sit top left.

25%50%75%100%$10k$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetEagles Mere Air Museum Foundation: $54,000 over 7y, 27% of budgetAero Club of Pennsylvania Memorial Scholarship Fund: $43,000 over 5y, 28% of budgetAngel Flight East: $16,300 over 7y, 0.2% of budgetThe Aopa Foundation Inc: $15,000 over 7y, 0.0% of budgetWissahickon Garden Club: $9,000 over 7y, 5.2% of budgetThe Woodlynde School Corporation: $6,500 over 7y, 0.0% of budgetCentre Square Fire Company: $6,000 over 7y, 0.4% of budgetJill Just Wants 2 Help: $5,500 over 6y, 21% of budgetSpringside Chestnut Hill Academy: $3,400 over 1y, 0.0% of budgetCorinthian Historical Foundation: $3,000 over 5y, 7.1% of budgetUrsinus College: $2,000 over 3y, 0.0% of budgetPlymouth Little League: $2,000 over 2y, 0.6% of budgetAmerican Helicopter Museum & Educat Center Inc: $1,550 over 2y, 0.1% of budgetBududa America Foundation: $100 over 1y, 0.1% 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 14.

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.

The Rorer Foundation IncPA13.6× affinity4 shared granteesties to 9 of 9Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Rorer Foundation Inc · The Pfizer Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 Kilduff Family Foundation with peer funders

About Kilduff Family Foundation

How much does Kilduff Family Foundation give?
Kilduff Family Foundation reported 15 grants totaling $39,500 in its FY2025 IRS filing. It funded between 15 and 17 organizations a year over FY2019 to FY2024.
What does Kilduff Family Foundation fund?
By grant dollars over FY2019 to FY2025, its largest causes are Education (40%), Arts & Culture (28%), Recreation & Sports (9%).
Who are Kilduff Family Foundation's largest grantees?
By total granted over FY2019 to FY2025: Eagles Mere Air Museum Foundation ($54k), Aero Club of Pennsylvania Memorial Scholarship Fund ($43k), Angel Flight East ($16k).
Does Kilduff Family Foundation fund new organizations?
In FY2024, 7% of the organizations it funded were first-time grantees.
Does Kilduff Family 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 Kilduff Family Foundation?
Its strongest co-funders, measured against what their size predicts, include The Rorer Foundation Inc, The Pfizer Foundation Inc, Morgan Stanley Global Impact Funding Trust Inc.
Where is Kilduff Family Foundation based?
Kilduff Family Foundation is based in PA.

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 23 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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