Private foundation · EIN 51-0189216 · Saint Louis, Missouri

Sidener Foundation

Should you approach them?

Yes, approach them if you're in Missouri. The foundation accepts applications (November 1 to November 30) and its median grant is $15K.

From the 2025 Form 990-PF: 9 grants paid, $160K total, median $15K. 100% of grants stayed in Missouri. Stated restrictions: Preference is given to St. Louis area charities.

Accepts applications
Yes
per 990-PF Part XV
Grants paid, 2025
9
$160K
Median grant
$15K
Stays in MO
100%
of grants
Deadline
See below
November 1 to November 30
Assets
$2.4M

How to apply

Letter of inquiry. Include copy of IRS Determination Letter. Contact: Jill Gray, Po Box 28568, St Louis, Mo, 3149910730 Deadlines: November 1 to November 30 Restrictions: Preference is given to St. Louis area charities.

Quoted from Part XV of the foundation's 2025 Form 990-PF; the full text is in the filing. Confirm on the foundation's website before you write.

Grants paid in 2025

9 grants, all shown · from Form 990-PF Part XV

RecipientPurposeAmount
Loaves & Fishes IncMaryland Heights, MOCharitable$35K
Food OutreachSt Louis, MOCharitable$30K
Central Institute for the DeafSt Louis, MOCharitable$15K
Feed My PeopleSt Louis, MOCharitable$15K
Operation Food SearchSt Louis, MOCharitable$15K
St Louis Area FoodbankBridgeton, MOCharitable$15K
The Food Bank for Central and Northeast MoColumbia, MOCharitable$15K
Circle of ConcernValley Park, MOCharitable$10K
ProvidentSt Louis, MOCharitable$10K

About this foundation

Sidener Foundation is a private grantmaking foundation in Saint Louis, Missouri, tax-exempt since 1976. Private foundations must pay out roughly 5% of their assets each year, mostly as grants to 501(c)(3) public charities.

All filings on ProPublica

Does Sidener Foundation accept grant applications?

Yes. On its 2025 Form 990-PF the foundation indicates it accepts applications. Letter of inquiry. Include copy of IRS Determination Letter. Deadlines: November 1 to November 30.

How much does Sidener Foundation give each year?

In tax year 2025 it paid $160K across 9 grants, a median of $15K.

Where does Sidener Foundation give?

Missouri (9 grants), per its latest filing.

More foundations near Saint Louis that accept applications

All in Missouri
FoundationBased inGrants paidMedian grantAccepts applicationsAssets
Enterprise Holdings Foundationsince 1982 Saint Louis, MO $101M2 grants · 2024 $50MYes $493M
James S McDonnell Foundationsince 2003 Saint Louis, MO $30M82 grants · 2024 $115KYes $622M
The W W Smith Charitable Trustsince 2015 Saint Louis, MO $12M251 grants · 2024 $35KYes $243M
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