The Dierberg Foundation
At a glance
This funder does not accept unsolicited applications. The foundation chooses the organisations it funds itself.
Key takeaways
- The foundation states that it does not accept unsolicited requests and works by invitation only, so a small nonprofit should not send in a cold proposal and should instead seek an introduction through someone who already knows the foundation.
- Where that route exists, a request near the typical grant band of $3,000 to $40,000 fits what it usually gives, and its median grant of $12,000 is a sensible reference point for a modest ask.
- Repeat giving is strong: 98% of its grant dollars to organisations in its most recent filing went to organisations it had also funded in an earlier filing, so a relationship matters more than a first approach.
- The filings state no geographic focus and no stated funding themes, so fit should be judged from its record of religious, educational, social-service, humanitarian and cultural grants, and the filings give no guidance on timing.
Overview
The Dierberg Foundation is a US private foundation based in Saint Louis, MO.
What they fund
Profile based on the foundation's IRS Form 990-PF filings (TY2025, TY2024, TY2023) only: no website or other web source for the foundation was found. Every statement is checked against the filings. Sources read on 7 October 2026.
Priority Areas
The filings show grantmaking mainly through expenditure-responsibility grants to another educational foundation, alongside general-support grants. The recorded general support reaches religious organisations, social-service and humanitarian organisations, schools and seminaries, arts and cultural institutions, a zoo and botanical garden, and a historical society. The grant record therefore includes religious, educational, social-service, humanitarian, cultural and other public-serving organisations, rather than setting out a stated set of funding themes. The filings provide no broader description of the foundation’s grantmaking strategy or eligibility beyond contributions to preselected charitable organisations.
Geographic Focus
No geographic focus is stated; the filings show grants mainly in the United States and Missouri.
How to apply
The foundation states that it does not accept unsolicited requests.
Application success factors
- Repeat giving: In its TY2025 filing, 98% of its grant dollars to organisations went to organisations it had also funded in its TY2023 or TY2024 filing.
- Grant size: Across its TY2023, TY2024 and TY2025 filings, half of its 50 grants to organisations were $12,000 or less.
Where grants go
From grants to organisations in the foundation’s filings for tax years 2023–2025.
Grant dollars by state
3 other states: <1%
- The largest single recipient received 83% of grant dollars to organisations.
- In tax year 2025, 98% of grant dollars went to organisations The Dierberg Foundation had funded in earlier filings.
- No grants were paid directly to organisations outside the US.
- 88% of grant dollars went to intermediaries that regrant to other organisations.
Grants
How much do they typically give?
Share of 19 grants in tax year 2025 by size
Median $12,000 (tax year 2025)
The largest grants to organisations in the foundation’s latest filing:
- Dierberg Educational Foundation · ExpenditureResponsibilityGrant$2,504,3212025 tax year
- Today and Tommorrow Foundation · General Support$180,0002025 tax year
- Catholic Charities · General Support$25,0002025 tax year
- Dynamic Catholic Institute · General Support$25,0002025 tax year
- Word on Fire Catholic · General Support$20,0002025 tax year
- Haiti Health Promise · General Support$15,0002025 tax year
- Archdiocese of Saint Louis · General Support$15,0002025 tax year
- Saint Patrick Center · General Support$12,0002025 tax year
Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.
Officers and directors
- Mary Dierberg — Trustee
- James Dierberg — Trustee
From the latest Form 990-PF filing
3 years of tax filings
| Year | Total expenses | Grants paid | Assets | Filing document |
|---|---|---|---|---|
| 2023 tax year | $332,255 | $312,500 | $6,916,745 | Filing for 2023 tax year |
| 2024 tax year | $1,679,434 | $1,670,558 | $6,054,324 | Filing for 2024 tax year |
| 2025 tax year | $2,879,297 | $2,869,471 | $4,270,525 | Filing for 2025 tax year |
Figures from the foundation’s IRS Form 990-PF filings. Assets are at fair market value at year end. The document icon links to each year’s filing on ProPublica Nonprofit Explorer.
Sources
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At a glance
Applying to The Dierberg Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- Saint Louis, MO
Applying to The Dierberg Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- Saint Louis, MO