William S and Blair Y Thompson Family

Private foundation · Grantmaker St. Louis, MO EIN: 27-4278915

William S and Blair Y Thompson Family is a private foundation based in St. Louis, Missouri. Its 2025 giving supported a range of charitable organizations, including food assistance providers, educational institutions, and community organizations.

William S and Blair Y Thompson Family at a glance

In short: William S and Blair Y Thompson Family gave $107K across 85 grants in 2025 (avg $1K), mostly in Missouri. 7% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$106,775
+0.9% vs 2024
Grants made (2025)
85
+0.0% vs 2024
Average grant
$1,256
+0.9% vs 2024
Median grant
$500
Total assets
$659,881
+2.4% vs 2024
New grantees (estimate)
7% first-time grantees (6 of 85, 2025)
Primary geography
Missouri (63% 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 William S and Blair Y Thompson Family

Accepts unsolicited proposals
No
How to Apply

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

Contact

Mailing address: 21 Bellerive Country Clb Grounds Dr, St Louis, MO 63141
Phone: (314) 569-0482

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

Who William S and Blair Y Thompson Family funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

United Way of Greater St Louis: $10KUnited Way of Greater St Louis$10KFood Outreach Inc: $5KFood Outreach Inc$5KFoxcroft School: $5KFoxcroft School$5KOperation Food Search: $5KOperation Food Search$5KSt Louis Area Foodbank: $5KSt Louis Area Foodbank$5KAmerican Red Cross (St Louis Chapter): $3KAmerican Red Cross (St LouisChapter)$3KDoctors Without Borders USA: $3KDoctors Without Borders USA$3KLatin School of Chicago: $3KLatin School of Chicago$3KMicds: $3KMicds$3KWashington University: $3KWashington University$3K

The largest 2025 recipient was United Way of Greater St Louis ($10K). Together the top 10 received $45K.

Grant Size Distribution

431 grants across all recorded years

431<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 431 grants of 431 (100%).

Geographic Focus

Where this funder awards grants

In 2025, Missouri organizations received 63% of grant dollars. Other leading recipient states were Florida (9%), Virginia (7%), Massachusetts (4%), and New York (3%).

Grant Distribution by State

17states

Share of 2025 grant dollars across all 85 itemized grants.

Cities

St. LouisWashingtonNew YorkBallwinJefferson CityMaryland HeightsDallasWashington DCMemphisChicagoKansas CityArlingtonBoca RatonBostonChesterfieldConcordFairfaxJacksonvilleKey BizcayneLittle Rock

Is William S and Blair Y Thompson Family open to new grantees?

7%

first-time grantees, 2025

In 2025, 6 of 85 grantees (7%) were first-time recipients. First grants averaged $242; repeat grants $1K. How we count

Medians: $100 first-time, $500 repeat.

  • 91% of 2025 grantees were also funded in 2024. Method
  • Giving held roughly steady from 2022 to 2025 (−5%). Method
  • In 2025 it paid out 265% of its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). 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$150K85 grants2020 83 grants2021 87 grants2022 91 grants2023 85 grants2024 85 grants2025

From 2020 to 2025, annual grant giving ranged from $98K (2020) to $112K (2022). In 2025 it made 85 grants totaling $107K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
United Way of Greater St Louis St. Louis, MORaise Funds for Local Charities$10,000
Food Outreach Inc St. Louis, MOTo provide nutritional support and enhance the quality of life of low-income men, women and children living with hiv/aids or cancer.$5,000
Foxcroft School Middleburg, VAEducation Programs for Young Women$5,000
Operation Food Search St. Louis, MOProvide Food to Needy$5,000
St Louis Area Foodbank St. Louis, MOProvide Food to Needy$5,000
American Red Cross (St Louis Chapter) St. Louis, MOTo prevent and alleviate human suffering in the face of emergencies.$3,000
Doctors Without Borders USA New York, NYProvide Medical Aid Where Needed the Most$3,000
Latin School of Chicago Chicago, ILEducation Programs for Students$3,000
Micds St. Louis, MOHigh School & Elemetary Education Programs$3,000
Washington University St. Louis, MOHigher Education Programs / Scholarships$3,000
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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$659,881$130,412$115,256$106,77585$109,065$124,221$41,187
2024$644,725$36,743$113,044$105,86085$107,150$30,849$45,567
2023$721,026$21,578$112,797$106,31591$107,362$16,143$44,957
2022$811,913$62,130$121,890$112,49587$113,359$46,485$49,015
2021$871,636$139,646$113,177$104,89083$105,675$132,858$57,067
2020$845,093$66,054$105,937$98,01385—$59,997$53,142

Under IRS private-foundation payout rules, William S and Blair Y Thompson Family reported a distributable amount of $41K 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 areas including hunger relief, education, health, and community needs. For example, United Way of Greater St. Louis describes its work as mobilizing people, resources, and funding to build strong and equitable communities. Operation Food Search says it works to heal hunger through food provision and collaborative solutions, while Food Outreach says it provides nutritional support to people living with HIV/AIDS or cancer. Foxcroft School describes its mission as helping girls develop their voices, skills, confidence, and courage.

Grantmaking

In 2025, the foundation reported 85 grants totaling $106,775. Grants ranged from $50 to $10,000, with a median of $500. Larger awards included $10,000 to United Way of Greater St. Louis; $5,000 each to Food Outreach, Foxcroft School, Operation Food Search, and St. Louis Area Foodbank; and $3,000 each to the American Red Cross (St. Louis Chapter), Doctors Without Borders USA, Latin School of Chicago, MICDS, and Washington University.

Leadership & Key People

Leadership team and compensation from IRS filings

Blair Y Thompson is listed as president on the 2025 filing.

William S and Blair Y Thompson Family is led by Blair Y. Thompson, President since 2023 (on filings since 2020) — the only officer listed, and uncompensated.

Officers on the 2025 filing

  • Blair Y. Thompson

    President

    Treasurer → President, 2023

    On filings since 2020

    2 hrs/week

    No compensation reported

Former officers (1)
  • Former: William S. Thompson (2020–2022) — President

Data from IRS Form 990 filings, 2020–2025. "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 William S and Blair Y Thompson Family

How much does William S and Blair Y Thompson Family give each year?

William S and Blair Y Thompson Family gave $107K across 85 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $106K across 85 grants.

What is William S and Blair Y Thompson Family's typical grant size?

William S and Blair Y Thompson Family's median grant in 2025 was $500, and its average grant was $1,256, across 85 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from William S and Blair Y Thompson Family that year got $242 on average.

Where does William S and Blair Y Thompson Family give grants?

William S and Blair Y Thompson Family gives mostly in Missouri: 63% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were Florida (9%) and Virginia (7%). The most frequent recipient cities were St. Louis, MO (34 grants), Washington, DC (6 grants), New York, NY (4 grants) and Ballwin, MO (3 grants).

Does William S and Blair Y Thompson Family give general operating support?

Not in 2025: none of the 85 grants with a stated purpose on William S and Blair Y Thompson Family's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Charitable" (13 grants), "Higher Education Programs / Scholarships" (4 grants) and "Provide Food to Needy" (3 grants).

Who are William S and Blair Y Thompson Family's largest grantees?

William S and Blair Y Thompson Family's largest 2025 grantees include United Way of Greater St Louis ($10,000), Food Outreach Inc ($5,000) and Foxcroft School ($5,000), according to its 2025 IRS Form 990-PF. Together they received 19% of its itemized 2025 grant dollars.

How large is William S and Blair Y Thompson Family?

William S and Blair Y Thompson Family reported $660K in total assets on its 2025 IRS Form 990-PF. It paid out $109K in qualifying distributions that year, against a required minimum of $41K (roughly 5% of its investment assets).

What does William S and Blair Y Thompson Family fund?

No mission statement for the foundation is provided. Its 2025 grants show support for organizations working in areas including hunger relief, education, health, and community needs. For example, United Way of Greater St. See mission & focus areas ↑

How do I apply for a grant from William S and Blair Y Thompson Family?

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 William S and Blair Y Thompson Family's EIN?

William S and Blair Y Thompson Family's EIN (Employer Identification Number) is 27-4278915. IRS Form 990 filing data is available on this page for 2020–2025.

Does William S and Blair Y Thompson Family 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

(6)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS May 11, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS May 13, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS May 11, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 15, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 5, 2025)
  6. Added Form 990-PF for fiscal year 2025 (received by the IRS May 11, 2026)

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Cite this profile

Grantable. (2026). William S and Blair Y Thompson Family funder profile. GrantGraph. Retrieved October 23, 2026, from https://grantable.co/funders/william-s-and-blair-y-thompson-family-morg_f295f4bd0bef4b0a8f98bd434c513fac

BibTeX
@misc{grantable_274278915_2026,
  author       = {{Grantable}},
  title        = {{William S and Blair Y Thompson Family funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/william-s-and-blair-y-thompson-family-morg_f295f4bd0bef4b0a8f98bd434c513fac},
  note         = {Accessed 2026-10-23. 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 William S and Blair Y Thompson Family'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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