The Willinphila Foundation

Private foundation · Grantmaker New York, NY EIN: 13-3933663

The Willinphila Foundation is a private foundation based in New York, NY. Its 2025 grants went to a range of charitable organizations, including educational institutions, conservation groups, and community-service organizations.

The Willinphila Foundation at a glance

In short: The Willinphila Foundation gave $144K across 55 grants in 2025 (avg $3K), top state Montana. 20% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$144,423
+43.8% vs 2024
Grants made (2025)
55
+25.0% vs 2024
Average grant
$2,626
+15.0% vs 2024
Median grant
$1,000
Total assets
$546,273
+65.3% vs 2024
New grantees (estimate)
20% first-time grantees (11 of 55, 2025)
Primary geography
Montana (34% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to The Willinphila Foundation

Accepts unsolicited proposals
No
How to Apply

The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests.

Contact

Mailing address: 49 East 86Th Street 15A, New York, NY 10028-1060
Phone: (212) 207-4707

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who The Willinphila Foundation funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Wild Montana: $15KWild Montana$15KKenyon College: $13KKenyon College$13KAugusta Public School: $11KAugusta Public School$11KAmerican Rivers Inc: $10KAmerican Rivers Inc$10KIdaho Basecamp: $10KIdaho Basecamp$10KMontana Land Reliance: $10KMontana Land Reliance$10KNew York Institute for Special Education: $8KNew York Institute for SpecialEducation$8KAugusta Area Historical Society: $5KAugusta Area HistoricalSociety$5KCenter for the Collaborative Classroom: $5KCenter for the CollaborativeClassroom$5KChamber Music Society Lincoln Center: $5KChamber Music Society LincolnCenter$5K

The largest 2025 recipient was Wild Montana ($15K). Together the top 10 received $91K.

Grant Size Distribution

260 grants across all recorded years

259<$50K1$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 259 grants of 260 (100%).

Geographic Focus

Where this funder awards grants

In 2025, the largest shares of grant dollars went to recipients in Montana (34%), New York (26%), Washington, DC (10%), Ohio (9%), and Idaho (7%).

Grant Distribution by State

25states

Share of 2025 grant dollars across all 55 itemized grants.

Cities

New YorkFishers IslandHelenaAugustaWashingtonBronxChoteauGambierGreat FallsMissoulaAndoverBozemanSan FranciscoScottsdaleAlamedaBostonLouisvilleOrlandoVeronaAmericus

Is The Willinphila Foundation open to new grantees?

20%

first-time grantees, 2025

In 2025, 11 of 55 grantees (20%) were first-time recipients. First grants averaged $3K; repeat grants $3K. How we count

Medians: $2K first-time, $1K repeat.

  • 49% of 2025 grantees were also funded in 2024. Method
  • Giving held roughly steady from 2022 to 2025 (+2%). Method
  • In 2025 it paid out 234% of its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$50K$100K$150K44 grants2019 51 grants2020 61 grants2021 57 grants2022 43 grants2023 44 grants2024 55 grants2025

From 2019 to 2025, annual grant giving ranged from $41K (2019) to $144K (2025). In 2025 it made 55 grants totaling $144K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Wild Montana Helena, MTUnrestricted Grant for Donee's Exempt Purpose$15,000
Kenyon College Gambier, OHUnrestricted Grant for Donee's Exempt Purpose$12,500
Augusta Public School Augusta, MTUnrestricted Grant for Donee's Exempt Purpose$10,500
American Rivers Inc Washington, DCUnrestricted Grant for Donee's Exempt Purpose$10,000
Idaho Basecamp Ketchum, IDUnrestricted Grant for Donee's Exempt Purpose$10,000
Montana Land Reliance Helena, MTUnrestricted Grant for Donee's Exempt Purpose$10,000
New York Institute for Special Education Bronx, NYUnrestricted Grant for Donee's Exempt Purpose$8,000
Augusta Area Historical Society Augusta, MTUnrestricted Grant for Donee's Exempt Purpose$5,060
Center for the Collaborative Classroom Alameda, CAUnrestricted Grant for Donee's Exempt Purpose$5,000
Chamber Music Society Lincoln Center New York, AZUnrestricted Grant for Donee's Exempt Purpose$5,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$546,273$1,015,573$155,021$144,42355$147,148$332,014$62,855
2024$330,543$258,664$106,785$100,43344$102,737$209,673$31,524
2023$178,464$83,301$64,865$61,25043$61,250$58,095$26,039
2022$160,028$119,848$147,641$141,14557$143,891$118,318$32,547
2021$185,321$102,290$84,647$81,23561—$101,904$40,254
2020$167,620$28,180$53,177$50,12751—$19,601$25,320
2019$192,804$-19,665$44,196$40,63344—$6,013$18,751

Under IRS private-foundation payout rules, The Willinphila Foundation reported a distributable amount of $63K for 2025 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No mission statement for the foundation is provided. Its 2025 grants show support for organizations working in different areas. For example, American Rivers describes its mission as protecting and restoring rivers; the New York Institute for Special Education says it provides educational programs and support to students and families; and the Montana History Foundation says it supports organizations dedicated to preserving Montana’s history and culture. These are the grantees’ stated missions, not the foundation’s.

Grantmaking

In filing year 2025, the foundation made 55 grants totaling $144,423. Grants ranged from $100 to $15,000, with a median of $1,000. The largest grants included $15,000 to Wild Montana, $12,500 to Kenyon College, $10,500 to Augusta Public School, and $10,000 each to American Rivers, Idaho Basecamp, and Montana Land Reliance. Other reported grants included $8,000 to the New York Institute for Special Education, $5,000 to the Center for the Collaborative Classroom and the Montana History Foundation, and $4,000 to Fishers Island Fire Department. The listed grants to these organizations were described as unrestricted grants for the recipient’s exempt purpose.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists William L Musser Jr, Linda S Musser, Philip Adrian Musser, and Lila Musser Preston as trustees.

The Willinphila Foundation's 2025 filing lists 4 officers; none of the 4 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Linda S. Musser

    Trustee

    On filings since 2019

    1 hr/week

    No compensation reported

  • Philip Adrian Musser

    Trustee

    On filings since 2019

    1 hr/week

    No compensation reported

  • William L. Musser Jr.

    Trustee

    On filings since 2019

    1 hr/week

    No compensation reported

  • Lila Musser Preston

    Trustee

    New on the 2025 filing

    1 hr/week

    No compensation reported

Former officers (1)
  • Former: Lila Ruth Musser (2019–2024) — Trustee

Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about The Willinphila Foundation

How much does The Willinphila Foundation give each year?

The Willinphila Foundation gave $144K across 55 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $100K across 44 grants.

What is The Willinphila Foundation's typical grant size?

The Willinphila Foundation's median grant in 2025 was $1,000, and its average grant was $2,626, across 55 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from The Willinphila Foundation that year got $3K on average.

Where does The Willinphila Foundation give grants?

The Willinphila Foundation's top state is Montana, with 34% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were New York (26%) and District of Columbia (10%). The most frequent recipient cities were New York, NY (18 grants), Fishers Island, NY (9 grants), Augusta, MT (4 grants) and Helena, MT (3 grants).

Does The Willinphila Foundation give general operating support?

Yes: 100% of The Willinphila Foundation's 2025 grants with a stated purpose (55 of 55) were for general or operating support, per its 2025 IRS Form 990-PF.

Who are The Willinphila Foundation's largest grantees?

The Willinphila Foundation's largest 2025 grantees include Wild Montana ($15,000), Kenyon College ($12,500) and Augusta Public School ($10,500), according to its 2025 IRS Form 990-PF. Together they received 26% of its itemized 2025 grant dollars.

How large is The Willinphila Foundation?

The Willinphila Foundation reported $546K in total assets on its 2025 IRS Form 990-PF. It paid out $147K in qualifying distributions that year, against a required minimum of $63K (roughly 5% of its investment assets).

What does The Willinphila Foundation fund?

No mission statement for the foundation is provided. Its 2025 grants show support for organizations working in different areas. See mission & focus areas ↑

How do I apply for a grant from The Willinphila Foundation?

The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is The Willinphila Foundation's EIN?

The Willinphila Foundation's EIN (Employer Identification Number) is 13-3933663. IRS Form 990 filing data is available on this page for 2019–2025.

Does The Willinphila Foundation accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.

Data update history

(8)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2019 (received by the IRS February 10, 2020)
  2. Updated Form 990-PF for fiscal year 2020 (received by the IRS March 29, 2021)
  3. Updated Form 990-PF for fiscal year 2021 (received by the IRS April 6, 2022)
  4. Updated Form 990-PF for fiscal year 2022 (received by the IRS March 10, 2023)
  5. Updated Form 990-PF for fiscal year 2023 (received by the IRS March 26, 2024)
  6. Updated Form 990-PF for fiscal year 2024 (received by the IRS April 7, 2025)
  7. Updated Form 990-PF for fiscal year 2025 (received by the IRS April 10, 2026)
  8. IRS filings on file for fiscal years 2019–2025

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Cite this profile

Grantable. (2026). The Willinphila Foundation funder profile. GrantGraph. Retrieved October 11, 2026, from https://grantable.co/funders/the-willinphila-foundation-morg_a3be63b002e147ebbf42ae51f45085c9

BibTeX
@misc{grantable_133933663_2026,
  author       = {{Grantable}},
  title        = {{The Willinphila Foundation funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/the-willinphila-foundation-morg_a3be63b002e147ebbf42ae51f45085c9},
  note         = {Accessed 2026-10-11. Data licensed CC BY 4.0}
}

The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.

Figures come from The Willinphila Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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