Donald J Slavik Family Foundation

Private foundation · Grantmaker Wilmington, DE EIN: 82-6893331

The Donald J Slavik Family Foundation is a private foundation based in Wilmington, Delaware. Its 2024 grants supported projects involving wildlife and habitat conservation, including large carnivores, sharks, salmon ecosystems, and biodiversity.

Key facts about Donald J Slavik Family Foundation

In short: Donald J Slavik Family Foundation gave $3.2M across 26 grants in 2024 (avg $123K), top state New York. 19% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.

EIN
82-6893331
Latest 990 filing
Form 990-PF, 2024
Annual giving (2024)
$3,206,628
Grants made (2024)
26
Average grant
$123,332
Median grant
$119,075
New grantees (estimate)
19% first-time grantees (4 of 21, 2024; small sample)
Total assets
$85,280,096
Primary geography
New York (21% of itemized 2024 grant dollars)
Accepts unsolicited proposals
No
How to apply
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Full details ↓

Data from IRS Form 990-PF, 2024; updated October 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

$85.3M

+16.6% YoY

Annual Giving

$3.2M

+22.2% YoY

Grant Count

26

-10.3% YoY

Avg Grant Size

$123K

+36.3% YoY

Under IRS private-foundation payout rules, Donald J Slavik Family Foundation reported a distributable amount of $4.2M for 2024 — the minimum it must pay out in qualifying distributions.

Is Donald J Slavik Family Foundation open to new grantees?

19%

first-time grantees, 2024

In 2024, 4 of 21 grantees (19%) were first-time recipients. With only 21 grantees, that is a small sample: one grantee more or less moves the share by about 5 points. First grants averaged $83K; repeat grants $169K. How we count

Medians: $65K first-time, $150K repeat.

  • 62% of 2024 grantees were also funded in 2023. Method
  • Giving grew 80% from 2021 to 2024. Method
  • In 2024 it paid out 79% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. 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 information does not state a mission for the foundation. Its 2024 grants included support for conservation projects in the United States and internationally. For example, the Center for Biological Diversity describes its own work as using science, law, and creative media to protect species and the lands, waters, and climate they need to survive. Wild Salmon Center describes its mission as promoting the conservation and sustainable use of wild salmon ecosystems across the Pacific Rim. These are grantee missions, not stated missions of the foundation.

Grantmaking

In 2024, the foundation made 26 grants totaling $3,206,628. Grants ranged from $1,478 to $315,000, with a median of $119,075.

Among its largest 2024 grants were $315,000 to Empowers Africa Inc for the Lion Landscapes Fund; $200,000 each to the Center for Biological Diversity for the N.C. US 64 Wolf Crossing Project, National Philanthropic Trust for the Slavik Williams Charitable Fund, the Nature Conservancy for funds for Zambia’s Kafue-West Lunga Corridor, and Rockefeller Philanthropy Advisors for the Shark Conservation Fund. Other grants included $175,000 to Yellowstone to Yukon Conservation Initiative for its HWY 3 Corridor Project; $150,000 each to Maliasili Initiatives for Lion Guardians and Maasai/carnivore coexistence, the Nature Conservancy for global food and water solutions, Panthera for big-cat and biodiversity conservation in Zimbabwe, Wild Salmon Center for work to block highway construction in the West Susitna River area, and Wildlife Conservation Network for the Lion Recovery Fund; and $142,000 to African Parks Foundation of America for managing large carnivores in Majete Wildlife Reserve.

How to Apply

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

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Geographic Focus

Where this funder awards grants

In 2024, grant dollars by recipient state were distributed as follows: New York, 21%; Virginia, 16%; Montana, 12%; California, 12%; and the District of Columbia, 11%. Grant purposes also included projects in Zambia, Zimbabwe, and Mozambique.

Grant Distribution by State

16states

Share of 2024 grant dollars across all 26 itemized grants.

Cities

New YorkBozemanSan FranciscoArlingtonSaint LouisWashingtonAustinEurekaMissoulaPasadenaFort CollinsJenkintownLaguna BeachPortlandRestonBronxCold Spring HarborEssex JunctionMontpelierSeattle

Giving Over Time

Total grant dollars and number of grants per year

$0$1M$2M$3M$4M14 grants2020 18 grants2021 27 grants2022 29 grants2023 26 grants2024

From 2020 to 2024, annual grant giving ranged from $1.4M (2020) to $3.2M (2024). In 2024 it made 26 grants totaling $3.2M.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

Nature Conservancy: $450K across 3 grantsNature Conservancy$450K · 3 grantsEmpowers Africa Inc: $315KEmpowers Africa Inc$315KWildlife Conservation Network Inc: $265K across 2 grantsWildlife Conservation NetworkInc$265K · 2 grantsYellowstone to Yukon Conservation Initiative: $225K across 2 grantsYellowstone to YukonConservation Initiative$225K · 2 grantsCenter for Biological Diversity Inc: $200KCenter for BiologicalDiversity Inc$200KNational Philanthropic Trust: $200KNational Philanthropic Trust$200KRockefeller Philanthropy Advisors Inc: $200KRockefeller PhilanthropyAdvisors Inc$200KMaliasili Initiatives Inc: $150KMaliasili Initiatives Inc$150KPanthera Corporation: $150KPanthera Corporation$150KWild Salmon Center: $150KWild Salmon Center$150K

The largest 2024 recipient was Nature Conservancy ($450K across 3 grants). Together the top 10 received $2.3M.

Grant Size Distribution

114 grants across all recorded years

21<$50K29$50–100K60$100–250K3$250–500K1$500K–1M$1–5M$5M+

The most common grant size was in the $100–250K range: 60 grants of 114 (53%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Empowers Africa Inc New York, NYLion Landscapes Fund$315,000
Center for Biological Diversity Inc Tucson, AZthe N.C. US 64 Wolf Crossing Project: Red Wolf Crossing Fund$200,000
National Philanthropic Trust Jenkintown, PAThe Slavik Williams Charitable Fund$200,000
Nature Conservancy Arlington, VAFunds for Zambia's Kafue-West Lunga Corridor$200,000
Rockefeller Philanthropy Advisors Inc New York, NYShark Conservation Fund$200,000
Yellowstone to Yukon Conservation Initiative Bozeman, MTHWY 3 Corridor Project$175,000
Maliasili Initiatives Inc Essex Junction, VTLion Guardians - Work with Maasai/Carnivore Coexistence$150,000
Nature Conservancy Arlington, VAFunds for Mainsteaming Food and Water Solutions Globally$150,000
Panthera Corporation New York, NYFunds for Protecting Big Cats and Biodiversity of Hwange National Park, Zimbabwe, and Supporting the well-being and resilience of local communities$150,000
Wild Salmon Center Portland, ORFunds for West Susitna River D/F: Block Highway Construction$150,000

Financial History

Multi-year comparison from IRS filings

Filing year Assets Revenue Expenses Grants Grant count
2024 $85,280,096 $15,861,978 $3,716,162 $3,206,628 26
2023 $73,134,280 $11,503,347 $3,155,976 $2,623,185 29
2022 $64,786,909 $11,466,730 $3,244,409 $2,650,000 27
Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$5M$10M$15M$20M2020 2021 2022 2023 2024
Metric202420232022
Total Assets$85,280,096$73,134,280$64,786,909
Revenue$15,861,978$11,503,347$11,466,730
Expenses$3,716,162$3,155,976$3,244,409
Qualifying Distributions$3,306,064$2,773,789$2,894,200
Net Investment Income$5,649,439$1,438,627$1,333,294
Distributable Amount$4,202,808$3,347,862$2,924,401

Data update history

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal years 2020–2024

Leadership & Key People

Leadership team and compensation from IRS filings

The 2024 filing lists Susan Slavik Williams as president and trustee; Felix Williams VI as vice president; and Alexis Hawthorne Williams, Jackson Alexander Williams, and Felix Noble Williams VII as directors.

Donald J Slavik Family Foundation is led by Susan Slavik Williams, President & Trustee since 2022 (on filings since 2020); none of the 5 officers listed in 2024 report compensation.

Officers on the 2024 filing

  • Susan Slavik Williams

    President & Trustee

    Trustee → President & Trustee, 2022

    On filings since 2020

    15 hrs/week

    No compensation reported

  • Alexis Hawthorne Williams

    Director

    On filings since 2023

    1 hr/week

    No compensation reported

  • Felix Noble Williams VII

    Director

    On filings since 2023

    1 hr/week

    No compensation reported

  • Jackson Alexander Williams

    Director

    On filings since 2023

    2 hrs/week

    No compensation reported

  • Felix Williams VI

    Vice President

    On filings since 2022

    10 hrs/week

    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: Foundation Source 501 Silverside Rd, Wilmington, DE 19809-1377
Phone: (800) 839-1754

Frequently asked questions about Donald J Slavik Family Foundation

How much does Donald J Slavik Family Foundation give each year?

Donald J Slavik Family Foundation gave $3.2M across 26 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $2.6M across 29 grants.

What is Donald J Slavik Family Foundation's typical grant size?

Donald J Slavik Family Foundation's median grant in 2024 was $119,075, and its average grant was $123,332, across 26 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from Donald J Slavik Family Foundation that year got $83K on average.

Where does Donald J Slavik Family Foundation give grants?

Donald J Slavik Family Foundation's top state is New York, with 21% of the grant dollars itemized on its 2024 IRS Form 990-PF. The next largest states were Virginia (16%) and Montana (12%). The most frequent recipient cities were New York, NY (3 grants), Arlington, VA (3 grants), Washington, DC (3 grants) and Bozeman, MT (3 grants).

Does Donald J Slavik Family Foundation give general operating support?

Not in 2024: none of the 26 grants with a stated purpose on Donald J Slavik Family Foundation's 2024 IRS Form 990-PF were described as general or operating support.

Who are Donald J Slavik Family Foundation's largest grantees?

Donald J Slavik Family Foundation's largest 2024 grantees include Nature Conservancy ($450,000 across 3 grants), Empowers Africa Inc ($315,000) and Wildlife Conservation Network Inc ($265,000 across 2 grants), according to its 2024 IRS Form 990-PF. Together they received 32% of its itemized 2024 grant dollars.

How large is Donald J Slavik Family Foundation?

Donald J Slavik Family Foundation reported $85.3M in total assets on its 2024 IRS Form 990-PF. It paid out $3.3M in qualifying distributions that year, against a required minimum of $4.2M (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What does Donald J Slavik Family Foundation fund?

The available information does not state a mission for the foundation. Its 2024 grants included support for conservation projects in the United States and internationally. See mission & focus areas ↑

How do I apply for a grant from Donald J Slavik Family Foundation?

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

What is Donald J Slavik Family Foundation's EIN?

Donald J Slavik Family Foundation's EIN (Employer Identification Number) is 82-6893331. IRS Form 990 filing data is available on this page for 2020–2024.

Does Donald J Slavik Family 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.

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