Sidener Foundation
Historical FunderSt Louis, Missouri · EIN 51-0189216 · Private foundation
Half of its grants to organizations were between $15,000 and $15,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | Jill Gray |
|---|---|
| Address | PO Box 28568, St Louis MO 63146 |
| Phone | 3149910730 |
| Form and materials | Letter of inquiry. Include copy of IRS Determination Letter. |
| Deadlines | November 1 to November 30 |
| Restrictions | Preference is given to St. Louis area charities. |
Copied as filed. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
0% of grants went outside Missouri.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Loaves & Fishes Inc | Maryland Heights, MO | Charitable | $35,000 |
| Food Outreach | St Louis, MO | Charitable | $30,000 |
| Central Institute for the Deaf | St Louis, MO | Charitable | $15,000 |
| Feed My People | St Louis, MO | Charitable | $15,000 |
| Operation Food Search | St Louis, MO | Charitable | $15,000 |
| St Louis Area Foodbank | Bridgeton, MO | Charitable | $15,000 |
| The Food Bank for Central and Northeast MO | Columbia, MO | Charitable | $15,000 |
| Circle of Concern | Valley Park, MO | Charitable | $10,000 |
| Provident | St Louis, MO | Charitable | $10,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $160,000 | 9 |
| 2024 | $119,000 | 10 |
| 2023 | $100,000 | 10 |
Sources
- IRS Form 990-PF, tax year 2025, filed Apr 29, 2026 - IRS e-file batch, object ID 202641199349101239
- IRS Tax Exempt Organization Search for EIN 51-0189216
- Profile updated Nov 6, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.