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Pennsylvania · Private foundation

The Armstrong 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.

$2.1M
Granted FY2025(still arriving)
73
Grants FY2025
55
Organizations funded FY2024
35%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$7,500
Largest grant, FY2025
$396,992
Organizations funded a year
41 to 57
FY2021 to FY2024
States reached, FY2025
17
Total assets, FY2025
$47M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 35% of the organizations The Armstrong Foundation funded were first-time grantees, receiving 5% of its grant dollars.

New vs renewed · share of each year

In FY2024, 95% of grant dollars renewed an existing relationship; $82k went to new ones.

50%100%’23’24
RenewedFirst-time

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

’23’24
EducationHuman ServicesArts & CultureInternationalPhilanthropyEnvironmentOther
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 arriving71$2.0M31%
FY202455$1.7M35%
FY202357$1.8M56%
FY202141$781kn/a
93% classified

What it funded, over time

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

Education$2.9MHealth$1.1MEnvironment$656kReligion$472kFood & Nutrition$334kArts & Culture$182kHuman Services$141kHousing & Shelter$140kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
MT
MN
IL
NY
MA
IA
PA
NJ
CT
RI
CA
CO
VA
MD
TN
NC
DC
LA
AL
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 85 grantees
All grantees of The Armstrong Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Blair Academy$1,309,34341%
Williamson College of the Trades$836,64041%
The Pennsylvania Horticultural Society$240,00040%
Natural Lands Trust Inc$238,00040%
A Better Chance in Lower Merion Inc$150,000218%
Pennsylvania Institute of Technology$145,00030%
Adirondack Land Trust Inc$134,50041%
Project Home$120,00040%
American Indian College Fund$110,00030%
The Adirondack Council Inc$92,50041%
Kent School$85,00040%
The Timothy School Corporation$80,50040%
Baker Industries Inc$70,00031%
Adirondack Explorer Inc$65,00032%
World Central Kitchen Inc$64,00030%
Philabundance$58,50040%
Team Impact Inc$55,00030%
Philadelphia Mural Arts Advocates Inc$50,00011%
Bancroft a New Jersey Non Profit Corporation$35,00020%
The Gesu School Inc$28,00040%
Children of Fallen Patriots Foundation$27,50030%
Vanderbilt University$27,00030%
American National Red Cross & Its Constituent Chapters and Branches$25,00010%
Neighborhood Gardens Trust$25,00021%
Mighty Writers$23,00030%
Pro Publica Inc$22,50040%
The Cobbs Creek Restoration and Community Foundation$20,00020%
Eagles Autism Challenge Inc$20,00010%
Eldernet of Lower Merion and Narberth$19,00041%
National Public Radio Inc$17,50030%
Hopephl$15,00010%
Portland Community Squash$15,00020%
Lake Placid Public Library$15,00031%
Harriton Association$13,00027%
National Wildlife Federation$10,50020%
St Lawrence University$10,00020%
Thaddeus Stevens Foundation$10,00010%
Trevor Project Inc$10,00010%
Lower Merion Conservancy$10,00011%
Broad Street Ministry$10,00020%
First Generation Investors$10,00013%
National Abortion Federation$10,00010%
Adirondack Mountain Club Inc$10,00040%
Ludington Library$10,00012%
Philadelphia Orchard Project Inc$10,00013%
Gender Justice$10,00010%
Neighborhood Trust Financial Partners Inc$9,00010%
1love4animals Inc$8,50021%
Valley Youth House Committee Inc$7,50010%
Equal Justice Initiative$7,50020%
Maine Needs Inc$7,00020%
Upchieve Inc$6,50020%
Haverford School$5,35020%
Boys & Girls Clubs of America$5,00010%
Artz Philadelphia$5,00011%
Planned Parenthood Keystone$5,00010%
Caves Valley Golf Club Foundation Inc$5,00011%
Advocates for Trans Equality Education Fund$5,0001n/a
Waterorg$5,00010%
Stephen Siller Tunnel to Towers Foundation$5,0001n/a
Whyy Inc$5,00010%
Cardinal Newman High School Inc$5,0001n/a
House of Tulip$5,00011%
Nopes Island Conservation Association Inc$5,00019%
Friends and Neighbors of Swannanoa Inc$5,0001n/a
Protect Our Winters$5,0001n/a
Speakup$5,00010%
Rainforest Trust$5,00010%
Chester County Food Bank$5,00010%
The Emergency Aid of Pennsylvania Foundation Inc$5,00021%
DeliverFund$4,35020%
The Trustees of Princeton University$4,00010%
Shipley School$3,80030%
Maine Audubon Society$3,00010%
Boca Helping Hands Inc$3,0001n/a
National Alliance for Eating Disorders Inc$2,50010%
Catholic Charities of the Diocese of Palm Beach Inc$2,50010%
Tree House Books$2,00010%
Hopeworks 'N Camden Inc$2,00020%
Make-A-Wish Foundation of Middle Tennessee$1,25020%
Connecticut College$1,00030%
Narberth Community Food Bank$1,0001n/a
Wills Eye Foundation Inc$1,00010%
Grands Stepping Up$1,0001n/a
Stop Poaching Now Inc$25010%

What it could do for these grantees

Plus 29 recipients with no EIN on record ($1.8M), not named here.

Where it is load-bearing

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetBlair Academy: $1,309,343 over 4y, 0.8% of budgetWilliamson College of the Trades: $836,640 over 4y, 1.3% of budgetThe Pennsylvania Horticultural Society: $240,000 over 4y, 0.2% of budgetNatural Lands Trust Inc: $238,000 over 4y, 0.3% of budgetA Better Chance in Lower Merion Inc: $150,000 over 2y, 18% of budgetPennsylvania Institute of Technology: $145,000 over 3y, 0.4% of budgetAdirondack Land Trust Inc: $134,500 over 4y, 1.0% of budgetProject Home: $120,000 over 4y, 0.1% of budgetAmerican Indian College Fund: $110,000 over 3y, 0.1% of budgetThe Adirondack Council Inc: $92,500 over 4y, 1.2% of budgetKent School: $85,000 over 4y, 0.0% of budgetThe Timothy School Corporation: $80,500 over 4y, 0.5% of budgetBaker Industries Inc: $70,000 over 3y, 1.1% of budgetAdirondack Explorer Inc: $65,000 over 3y, 2.0% of budgetWorld Central Kitchen Inc: $64,000 over 3y, 0.0% of budgetPhilabundance: $58,500 over 4y, 0.0% of budgetTeam Impact Inc: $55,000 over 3y, 0.3% of budgetPhiladelphia Mural Arts Advocates Inc: $50,000 over 1y, 0.5% of budgetBancroft a New Jersey Non Profit Corporation: $35,000 over 2y, 0.0% of budgetThe Gesu School Inc: $28,000 over 4y, 0.1% of budgetChildren of Fallen Patriots Foundation: $27,500 over 3y, 0.1% of budgetVanderbilt University: $27,000 over 3y, 0.0% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $25,000 over 1y, 0.0% of budgetNeighborhood Gardens Trust: $25,000 over 2y, 1.0% of budgetMighty Writers: $23,000 over 3y, 0.2% of budgetPro Publica Inc: $22,500 over 4y, 0.0% of budgetThe Cobbs Creek Restoration and Community Foundation: $20,000 over 2y, 0.1% of budgetEagles Autism Challenge Inc: $20,000 over 1y, 0.1% of budgetEldernet of Lower Merion and Narberth: $19,000 over 4y, 0.8% of budgetNational Public Radio Inc: $17,500 over 3y, 0.0% of budgetHopephl: $15,000 over 1y, 0.1% of budgetPortland Community Squash: $15,000 over 2y, 0.3% of budgetLake Placid Public Library: $15,000 over 3y, 1.3% of budgetHarriton Association: $13,000 over 2y, 6.8% of budgetNational Wildlife Federation: $10,500 over 2y, 0.0% of budgetSt Lawrence University: $10,000 over 2y, 0.0% of budgetThaddeus Stevens Foundation: $10,000 over 1y, 0.4% of budgetTrevor Project Inc: $10,000 over 1y, 0.0% of budgetLower Merion Conservancy: $10,000 over 1y, 1.5% of budgetBroad Street Ministry: $10,000 over 2y, 0.2% of budgetFirst Generation Investors: $10,000 over 1y, 2.8% of budgetNational Abortion Federation: $10,000 over 1y, 0.1% of budgetAdirondack Mountain Club Inc: $10,000 over 4y, 0.1% of budgetLudington Library: $10,000 over 1y, 2.1% of budgetPhiladelphia Orchard Project Inc: $10,000 over 1y, 2.5% of budgetGender Justice: $10,000 over 1y, 0.4% of budgetNeighborhood Trust Financial Partners Inc: $9,000 over 1y, 0.1% of budget1love4animals Inc: $8,500 over 2y, 0.5% 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 77.

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.

The Philadelphia FoundationPA28.3× affinity13 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Philadelphia Foundation · The William Penn Foundation · Connelly Foundation · United Way of Greater Philadelphia and Southern New Jersey · Claneil Foundation Inc · Lincoln Financial Foundation Inc · The Pfizer Foundation Inc · Henry Dolfinger 2 Trust Uw · Impact100 Philadelphia Inc · The Leo and Peggy Pierce Family Foundation Inc · The Gordon Charter Foundation · Phillies Charities 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 The Armstrong Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to The Armstrong Foundation?

Find your warmest path to The Armstrong Foundation 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 The Armstrong Foundation

How much does The Armstrong Foundation give?
The Armstrong Foundation reported 73 grants totaling $2,084,492 in its FY2025 IRS filing. It funded between 41 and 57 organizations a year over FY2021 to FY2024.
What does The Armstrong Foundation fund?
By grant dollars over FY2021 to FY2025, its largest causes are Education (28%), Health (10%), Environment (6%).
Who are The Armstrong Foundation's largest grantees?
By total granted over FY2021 to FY2025: Blair Academy ($1.3M), Williamson College of the Trades ($837k), The Pennsylvania Horticultural Society ($240k).
Does The Armstrong Foundation fund new organizations?
In FY2024, 35% of the organizations it funded were first-time grantees.
Does The Armstrong 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 The Armstrong Foundation?
Its strongest co-funders, measured against what their size predicts, include The Philadelphia Foundation, The William Penn Foundation, Connelly Foundation.
Where is The Armstrong Foundation based?
The Armstrong 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 115 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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