Mark a and Deborah a Wilhelm Foundation logo

Mark a and Deborah a Wilhelm Foundation

Private foundation · Grantmaker Naples, FL EIN: 43-6801024 Website

MARK A AND DEBORAH A WILHELM is a private foundation based in Naples, Florida. Its 2024 filing is marked as a final return and states that the foundation made a final distribution of its assets in complete liquidation and termination; it therefore appears to have wound down.

Key facts about Mark a and Deborah a Wilhelm Foundation

In short: Mark a and Deborah a Wilhelm Foundation gave $302K across 24 grants in 2024 (avg $13K), mostly in Florida. 33% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.

EIN
43-6801024
Latest 990 filing
Form 990-PF, 2024
Annual giving (2024)
$302,209
Grants made (2024)
24
Average grant
$12,592
Median grant
$250
New grantees (estimate)
33% first-time grantees (8 of 24, 2024)
Primary geography
Florida (94% of itemized 2024 grant dollars)
Accepts unsolicited proposals
No
How to apply
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests. Full details ↓

Data from IRS Form 990-PF, 2024; updated September 2026. New grantees are estimated by matching recipient names across years (methodology). Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

—

-100.0% YoY

Annual Giving

$302K

+1784.3% YoY

Grant Count

24

-14.3% YoY

Avg Grant Size

$13K

+2098.4% YoY

Under IRS private-foundation payout rules, Mark a and Deborah a Wilhelm Foundation reported a distributable amount of $18K for 2024 — the minimum it must pay out in qualifying distributions.

Is Mark a and Deborah a Wilhelm Foundation open to new grantees?

33%

first-time grantees, 2024

In 2024, 8 of 24 grantees (33%) were first-time recipients. First grants averaged $36K; repeat grants $762. How we count

Medians: $425 first-time, $250 repeat.

  • 38% of 2024 grantees were also funded in 2023. Method
  • Giving grew 1731% from 2021 to 2024. Method
  • In 2024 it paid out well above its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

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

Mission & Focus Areas

The available filing information does not state a mission for the foundation. Its 2024 grants went to organizations with varied purposes. For example, Boys Hope Girls Hope describes its mission as guiding young people in need through long-term residential and academy programs, while United Way of Greater St. Louis says it works to build strong and equitable communities. Forest Park Forever describes its work as restoring and sustaining Forest Park in partnership with the city of St. Louis. These are the grantees’ stated missions, not stated priorities of the foundation.

Grantmaking

How to Apply

.

Your AI grants department

Ready to take the next step with Mark a and Deborah a Wilhelm Foundation?

Fully replaces Grant database subscriptions Instrumentl · Foundation Directory · GrantStation & similar

Geographic Focus

Where this funder awards grants

In 2024, 94% of grant dollars went to recipients in Florida, 4% to Missouri, and 1% to Virginia. Michigan and the District of Columbia each accounted for less than 1% of grant dollars, as reported in the filing.

Grant Distribution by State

19states

Share of 2024 grant dollars across all 24 itemized grants.

Cities

St. LouisGrand HavenPhiladelphiaBaton RougeMaplewoodNaplesSaugatuckWashingtonColumbiaDes PeresKansas CityLouisvilleNew YorkOlivetteRye BrookSpringfieldStaten IslandAtlantaBellevilleCary

Giving Over Time

Total grant dollars and number of grants per year

$0$100K$200K$300K$400K39 grants2020 46 grants2021 38 grants2022 28 grants2023 24 grants2024

From 2020 to 2024, annual grant giving ranged from $16K (2023) to $302K (2024). In 2024 it made 24 grants totaling $302K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

Raymond James Charitable: $285KRaymond James Charitable$285KBoys Hope Girls Hope: $8KBoys Hope Girls Hope$8KAnnual Diocesan Appeal Co the Catholic Community Foundation: $3KAnnual Diocesan Appeal Co theCatholic Community Foundation$3KOur Angels' Wings: $1KOur Angels' Wings$1KBackstoppers: $500Backstoppers$500Detroit Red Wings Alumni: $500Detroit Red Wings Alumni$500United Way of Greater St Louis: $500United Way of Greater St Louis$500Archdioceases of the Military Services: $350Archdioceases of the MilitaryServices$350Forest Park Forever: $300Forest Park Forever$300Queen of the Holy Rosary: $300Queen of the Holy Rosary$300

The largest 2024 recipient was Raymond James Charitable ($285K). Together the top 10 received $299K.

Grant Size Distribution

175 grants across all recorded years

174<$50K$50–100K$100–250K1$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 174 grants of 175 (99%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Raymond James Charitable St Petersburg, FLGeneral$284,975
Boys Hope Girls Hope St. Louis, MOGeneral$8,086
Annual Diocesan Appeal Co the Catholic Community Foundation Richmond, VAGeneral$2,500
Our Angels' Wings Springfield, MOGeneral$1,000
Backstoppers St. Louis, MOGeneral$500
Detroit Red Wings Alumni Clarkston, MIGeneral$500
United Way of Greater St Louis St. Louis, MOGeneral$500
Archdioceases of the Military Services Washington, DCGeneral$350
Forest Park Forever St. Louis, MOGeneral$300
Queen of the Holy Rosary St. Louis, MOGeneral$300

Financial History

Multi-year comparison from IRS filings

Filing year Grant total Number of grants
2024 $302,209 24
2023 $16,038 28
2022 $19,277 38
Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$100K$200K$300K$400K2020 2021 2022 2023 2024
Metric202420232022
Total Assets—$270,292$276,773
Revenue$43,555$14,083$19,311
Expenses$313,847$20,564$25,422
Qualifying Distributions$302,209$16,038$19,277
Net Investment Income$38,888$12,281$17,099
Distributable Amount$17,945$17,234$17,542

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS November 15, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS May 11, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS October 23, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 14, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 13, 2025)
  6. IRS filings on file for fiscal years 2020–2024

Leadership & Key People

Leadership team and compensation from IRS filings

The 2024 filing lists Mark A Wilhelm and Deborah A Wilhelm as trustees.

Mark a and Deborah a Wilhelm Foundation's 2024 filing lists 2 officers; none of the 2 officers listed in 2024 report compensation.

Officers on the 2024 filing

  • Deborah A. Wilhelm

    Trustee

    On filings since 2020

    No compensation reported

  • Mark A. Wilhelm

    Trustee

    On filings since 2020

    No compensation reported

Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Contact

Mailing address: 11125 Gulf Shore Drive 402, Naples, FL 34108
Phone: (314) 576-2977
Website: HTTP://WWW.GUIDESTAR.ORG

Frequently asked questions about Mark a and Deborah a Wilhelm Foundation

How much does Mark a and Deborah a Wilhelm Foundation give each year?

Mark a and Deborah a Wilhelm Foundation gave $302K across 24 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $16K across 28 grants.

What is Mark a and Deborah a Wilhelm Foundation's typical grant size?

Mark a and Deborah a Wilhelm Foundation's median grant in 2024 was $250, and its average grant was $12,592, across 24 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from Mark a and Deborah a Wilhelm Foundation that year got $36K on average.

Where does Mark a and Deborah a Wilhelm Foundation give grants?

Mark a and Deborah a Wilhelm Foundation gives mostly in Florida: 94% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The most frequent recipient cities were St. Louis, MO (14 grants).

Does Mark a and Deborah a Wilhelm Foundation give general operating support?

Yes: 100% of Mark a and Deborah a Wilhelm Foundation's 2024 grants with a stated purpose (24 of 24) were for general or operating support, per its 2024 IRS Form 990-PF.

Who are Mark a and Deborah a Wilhelm Foundation's largest grantees?

Mark a and Deborah a Wilhelm Foundation's largest 2024 grantees include Raymond James Charitable ($284,975), Boys Hope Girls Hope ($8,086) and Annual Diocesan Appeal Co the Catholic Community Foundation ($2,500), according to its 2024 IRS Form 990-PF. Together they received 98% of its itemized 2024 grant dollars.

What does Mark a and Deborah a Wilhelm Foundation fund?

The available filing information does not state a mission for the foundation. Its 2024 grants went to organizations with varied purposes. See mission & focus areas ↑

How do I apply for a grant from Mark a and Deborah a Wilhelm Foundation?

The foundation states that it 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 ↑

How much is Mark a and Deborah a Wilhelm Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, Mark a and Deborah a Wilhelm Foundation reported a distributable amount of $18K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is Mark a and Deborah a Wilhelm Foundation's EIN?

Mark a and Deborah a Wilhelm Foundation's EIN (Employer Identification Number) is 43-6801024. IRS Form 990 filing data is available on this page for 2020–2024.

Does Mark a and Deborah a Wilhelm Foundation accept unsolicited proposals?

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

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

Your AI grants department

Here's the math on researching Mark a and Deborah a Wilhelm Foundation by hand.

Explore Open Grants

Browse active grant opportunities in Mark a and Deborah a Wilhelm Foundation's focus areas in our free grants database

Similar Funders

Funders that support many of the same organizations

Enterprise Holdings Foundation

Saint Louis, MO

Enterprise Holdings Foundation supports nonprofits in health, education, arts, disaster relief, reforestation, hunger relief, and community equity, with an emphasis on organizations actively supported by Enterprise employees and their families. Its reported grants range widely: 2024 giving averaged about $7,700 across 9,499 grants, while the foundation also offers awards of up to $40,000; it supports communities where Enterprise operates worldwide. Unsolicited requests are accepted at any time, but eligible applications must be submitted by an Enterprise team member or their spouse or domestic partner on behalf of a nonprofit they actively support.

Assets

$594.3M

Grants

1

Total Given

$101.4M

St Louis Community Foundation Inc

St. Louis, MO

The St. Louis Community Foundation supports nonprofits through donor- and foundation-directed grants, with priorities including economic mobility and youth connections as well as education, health, arts, and culture. Its 2024 grants had a median of $20,000, though amounts ranged from $5,050 to $4 million; its regional priorities center on Greater St. Louis, especially designated high-need ZIP codes. Grant processes vary by fund, so the profile does not establish whether the Foundation accepts unsolicited requests generally.

Assets

$494.4M

Grants

839

Total Given

$63.9M

Publix Super Markets Charities Inc

Lakeland, FL

Publix Super Markets Charities supports nonprofits addressing hunger, homelessness and housing, youth, education, and community needs in Florida, Georgia, Alabama, North Carolina, South Carolina, Tennessee, Virginia, and Kentucky. Its 2024 median grant was $2,500, though awards ranged widely; it accepts online requests from eligible organizations, with application periods varying by program.

Assets

$233.8M

Grants

3,269

Total Given

$52.5M

The Community Foundation for Northeast Florida Inc

Jacksonville, FL

The Community Foundation for Northeast Florida supports nonprofits and civic work in Duval, St. Johns, Nassau, Baker, Clay, and Putnam counties, with interests including neighborhoods, education, aging adults, arts, women and girls, young children, and early literacy. Its 2024 grants had a median of $5,000, though amounts varied widely; most donor-advised grants are not open to applications, but eligible nonprofits can apply through competitive programs when application windows are open.

Philanthropy, Voluntarism & Grantmaking

Assets

$708.7M

Grants

2,470

Total Given

$78.0M

Community Foundation of Tampa Bay Inc

Tampa, FL

The Community Foundation of Tampa Bay funds nonprofits addressing economic opportunity, environmental sustainability, health, education, and community vitality in Hillsborough, Pinellas, Pasco, Hernando, and Citrus counties. Its annual competitive grants are typically $10,000–$50,000; it also accepts year-round requests for urgent, unforeseen needs of up to $250,000. Apply through the relevant grant opportunity; the profile does not state whether general unsolicited requests are accepted.

Philanthropy, Voluntarism & Grantmaking

Assets

$1.0B

Grants

698

Total Given

$54.3M

Gulf Coast Community Foundation Inc

Venice, FL

Gulf Coast Community Foundation funds arts and culture, civic and economic development, education, the environment, health and human services, and disaster response, with a focus on its Florida service area. Community grants provide up to $25,000 per organization per fiscal year; larger catalytic grants are available, and 2025 grants had a median of $16,251. It accepts unsolicited requests through scheduled Community Grant cycles; catalytic grants start with a letter of inquiry, and initiative grants are by invitation only.

Philanthropy, Voluntarism & Grantmaking

Assets

$533.7M

Grants

651

Total Given

$45.0M

Early Learning Coalition of Broward

Fort Lauderdale, FL

The Early Learning Coalition of Broward funds child care reimbursement and early-learning providers, including programs supporting child care and preschool, primarily in Broward County, Florida. Its 2025 grants ranged from $5,127 to $3,994,863, with a median of $158,921. The profile does not state whether it accepts unsolicited requests.

Human Services

Assets

$15.9M

Grants

636

Total Given

$152.2M

Leslie L Alexander Foundation Inc

Delray Beach, FL

The Leslie L Alexander Foundation supports animal rescue, education, children’s services, and other charitable work. In 2024, grants ranged from $600 to $1 million, with a median of $35,000; giving was concentrated in Florida and Texas, with awards also made elsewhere. It gives only to preselected organizations and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$291.4M

Grants

622

Total Given

$28.4M

CSX Foundation Inc

Jacksonville, FL

Philanthropy, Voluntarism & Grantmaking

Assets

$9.7M

Grants

607

Total Given

$13.7M

United Way Miami Inc

Miami, FL

United Way Miami funds education, economic mobility, health and wellbeing, and resilient-community programs, with its community focus in Miami-Dade County. Its 2025 grants ranged from $5,082 to $1,693,432, with a median of $18,410; published opportunities include selected awards of up to $153,000. It publishes specific grant opportunities and application details; whether it accepts unsolicited requests is not stated.

Philanthropy, Voluntarism & Grantmaking

Assets

$157.2M

Grants

562

Total Given

$32.6M

The Community Foundation of Sarasota CO

Sarasota, FL

The Community Foundation of Sarasota County funds nonprofits working in areas including human services, education, arts, health, economic stability, animal welfare, and community resilience. Its typical grants are around $10,000–$25,000, with a 2025 median of $18,798, for programs serving Sarasota, Manatee, Charlotte, or DeSoto County. The profile does not state whether it accepts unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$518.5M

Grants

540

Total Given

$41.2M

More Funders in Florida

Mark a and Deborah a Wilhelm Foundation down — hundreds of funders to go?

Want AI to do this for you?