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Delaware · Private foundation

The Mill Spring Foundation 084206-000

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.

$653k
Granted FY2025(still arriving)
22
Grants FY2025
23
Organizations funded FY2024
4%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$10,000
Largest grant, FY2025
$200,000
Organizations funded a year
23 to 24
FY2021 to FY2024
States reached, FY2025
2
Total assets, FY2025
$2.3M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 4% of the organizations The Mill Spring Foundation 084206-000 funded were first-time grantees, receiving 12% of its grant dollars.

New vs renewed · share of each year

In FY2024, 88% of grant dollars renewed an existing relationship; $100k went to new ones.

50%100%’23’24
RenewedFirst-time

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

’23’24
Arts & CultureEducationEnvironmentHuman ServicesHealthOther
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 arriving21$628k14%
FY202423$816k4%
FY202324$1.1M42%
FY202124$254kn/a
93% classified

What it funded, over time

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

Education$923kInternational$725kScience & Tech$283kArts & Culture$241kHuman Services$155kYouth Development$119kEnvironment$100kPublic Benefit$90kOther$0

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 29 grantees

What it could do for these grantees

Plus 9 recipients with no EIN on record ($798k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Mill Spring Foundation 084206-000 supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetWilliam Penn Charter School Inc: $500,000 over 1y, 0.6% of budgetThe Public School of Germantown: $350,000 over 3y, 0.5% of budgetThe Franklin Institute: $183,000 over 4y, 0.1% of budgetWoodmere Art Museum: $130,000 over 4y, 0.7% of budgetFace to Face Inc: $115,000 over 4y, 2.0% of budgetScience History Institute: $100,000 over 1y, 1.1% of budgetHighlands Historical Society: $100,000 over 1y, 1.1% of budgetThe Whitemarsh Foundation: $100,000 over 3y, 5.8% of budgetConsumer Bankruptcy Assistance Project: $55,000 over 4y, 4.5% of budgetWissahickon Valley Public Library: $50,000 over 3y, 1.3% of budgetZoological Society of Philadelphia: $50,000 over 4y, 0.1% of budgetFamily Promise Montco Pa: $32,500 over 4y, 0.7% of budgetFoundation for Free Enterprise Education: $27,000 over 4y, 0.4% of budgetWorld Affairs Council of Philadelphia: $25,000 over 1y, 1.5% of budgetGemma Services: $22,500 over 4y, 0.0% of budgetRock to the Future Inc: $20,000 over 4y, 1.1% of budgetMusicworks: $17,500 over 3y, 0.6% of budgetChrists Home: $15,000 over 1y, 0.1% of budgetHope Springs Equestrian Therapy Inc: $15,000 over 3y, 2.9% of budgetChildren's Scholarship Fund Philadelphia: $15,000 over 3y, 0.0% of budgetCradle of Hope Inc: $15,000 over 3y, 1.6% of budgetGirls Rock Philly: $10,000 over 2y, 3.6% of budgetGirl Scouts of Eastern Pennsylvania Inc: $10,000 over 1y, 0.1% of budgetBethesda Project: $7,500 over 1y, 0.1% of budgetEnchantment Theatre Company: $6,000 over 2y, 2.0% of budgetSpecial Equestrians Inc: $6,000 over 2y, 0.6% of budgetKencrest Services: $5,000 over 1y, 0.0% of budgetCcsa Foundation: $5,000 over 1y, 0.1% of budgetBaby Bureau: $2,500 over 1y, 2.0% 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 29.

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 FoundationPA34.1× affinity15 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Philadelphia Foundation · Henry Dolfinger 2 Trust Uw · Connelly Foundation · Lindback Cr & Mf Foundation Tw Main · Wsfs Cares Foundation · United Way of Greater Philadelphia and Southern New Jersey · The William Penn Foundation · The Cedarcrest Charitable Foundation Aka Blbb Charitable · The Gordon Charter Foundation · Independence Foundation · W W Smith Charitable Trust · Chubb 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 The Mill Spring Foundation 084206-000 with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to The Mill Spring Foundation 084206-000?

Find your warmest path to The Mill Spring Foundation 084206-000 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 Mill Spring Foundation 084206-000

How much does The Mill Spring Foundation 084206-000 give?
The Mill Spring Foundation 084206-000 reported 22 grants totaling $653,000 in its FY2025 IRS filing. It funded between 23 and 24 organizations a year over FY2021 to FY2024.
What does The Mill Spring Foundation 084206-000 fund?
By grant dollars over FY2021 to FY2025, its largest causes are Education (29%), International (23%), Science & Tech (9%).
Who are The Mill Spring Foundation 084206-000's largest grantees?
By total granted over FY2021 to FY2025: William Penn Charter School Inc ($500k), The Public School of Germantown ($350k), The Franklin Institute ($183k).
Does The Mill Spring Foundation 084206-000 fund new organizations?
In FY2024, 4% of the organizations it funded were first-time grantees.
Does The Mill Spring Foundation 084206-000 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 Mill Spring Foundation 084206-000?
Its strongest co-funders, measured against what their size predicts, include The Philadelphia Foundation, Henry Dolfinger 2 Trust Uw, Connelly Foundation.
Where is The Mill Spring Foundation 084206-000 based?
The Mill Spring Foundation 084206-000 is based in DE.

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 39 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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