Riester Conservation Foundation
Historical FunderPhoenix, Arizona · EIN 86-1033524 · Private foundation
Half of its grants to organizations were between $2,000 and $5,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2024):
| Contact | GARY KAASA |
|---|---|
| Address | 3344 EAST CAMELBACK ROAD, PHOENIX AZ 85018 |
| Phone | 6024622200 |
| Form and materials | THE PURPOSE OF THE CONTRIBUTION OR GRANT AND AMOUNT. |
| Deadlines | NONE |
| Restrictions | NONE |
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
100% of grants went outside Arizona.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| David Sheldrick Wildlife Trust | Laguna Hills, CA | Charitable | $5,000 |
| Big Life Foundation | Arlington, VA | Charitable | $3,000 |
| Sierra Club Foundation | Oakland, CA | Charitable | $2,000 |
The return also lists 3 grants to individuals ($15,850). We do not publish the names of individual recipients.
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $25,850 | 6 |
| 2023 | $22,270 | 5 |
Sources
- IRS Form 990-PF, tax year 2024, filed May 14, 2025 - IRS e-file batch, object ID 202501339349104830
- IRS Tax Exempt Organization Search for EIN 86-1033524
- Profile updated Nov 8, 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.