Riester Conservation Foundation is a private foundation focused on Environment & Animals, based in PHOENIX, AZ. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $27K in total assets. In 2024, it awarded 6 grants totaling $26K. Net investment income was $921.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$27K
+50.1% YoY
Annual Giving
$26K
+16.1% YoY
Grant Count
6
+20.0% YoY
Avg Grant Size
$4K
-3.3% YoY
Under IRS private-foundation payout rules, Riester Conservation Foundation reported a distributable amount of $1K for 2024 — the minimum it must pay out in qualifying distributions.
About Riester Conservation Foundation
Based on IRS filings
Riester Conservation Foundation is a private foundation focused on Environment & Animals, based in PHOENIX, AZ. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $27K in total assets. In 2024, it awarded 6 grants totaling $26K. Net investment income was $921.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $26,731 | $17,804 | $10,644 |
| Revenue | $36,360 | $30,840 | $4,419 |
| Expenses | $27,429 | $23,680 | $27,450 |
| Qualifying Distributions | $27,429 | $23,680 | $27,450 |
| Net Investment Income | $921 | $271 | $19 |
| Distributable Amount | $1,300 | $977 | $636 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 6 recipients in 2024
Grant Size Distribution
26 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest include Asociacion Crema ($13,450), David Sheldrick Wildlife Trust ($5,000), Big Life Foundation ($3,000).
| Recipient | Purpose | Amount |
|---|---|---|
| ADI COROZALITO | CHARITABLE | $1,000 |
| AMIGOS DE CHOCOLA LOS ANGELES, CA | CHARITABLE | $1,400 |
| SIERRA CLUB FOUNDATION OAKLAND, CA | CHARITABLE | $2,000 |
| BIG LIFE FOUNDATION ARLINGTON, VA | CHARITABLE | $3,000 |
| DAVID SHELDRICK WILDLIFE TRUST LAGUNA HILLS, CA | CHARITABLE | $5,000 |
| ASOCIACION CREMA | CHARITABLE | $13,450 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| MIRJA RIESTER | CHAIR | — | — |
| TIM RIESTER | DIRECTOR | — | — |
| ALAN PERKEL | DIRECTOR | — | — |
| GARY KAASA | PRESIDENT | — | — |
| MICHAEL HOPKINS | DIRECTOR | — | — |
| JOHN LINDSAY | DIRECTOR | — | — |
| TOM ORTEGA | TREASURER | — | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is Riester Conservation Foundation?
Riester Conservation Foundation is a private foundation focused on Environment & Animals, based in PHOENIX, AZ. It holds $27K in total assets as of 2024.
How large is Riester Conservation Foundation?
As of 2024, Riester Conservation Foundation holds $27K in total assets with $36K in annual revenue. It awarded 6 grants totaling $26K in 2024.
Where does Riester Conservation Foundation operate?
Riester Conservation Foundation has awarded grants in Arizona, California, Colorado, Virginia, Washington.
What size grants does Riester Conservation Foundation award?
In 2024, Riester Conservation Foundation awarded 6 grants totaling $26K — an average of about $4K per grant, based on its IRS Form 990 filings.
How much is Riester Conservation Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, Riester Conservation Foundation reported a distributable amount of $1K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Riester Conservation Foundation's EIN?
Riester Conservation Foundation's EIN (Employer Identification Number) is 86-1033524. IRS Form 990 filing data is available on this page for 2020–2024.
Explore Open Grants
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Data last updated April 2026. Sourced from IRS Form 990-PF filings.
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