Anthony and Dorothy Riddle Family Foundation
Anthony and Dorothy Riddle Family Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in BOULDER, CO. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $576K in total assets. In 2024, it awarded 5 grants totaling $37K. Net investment income was $52K.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$576K
+2.7% YoY
Annual Giving
$37K
+0.0% YoY
Grant Count
5
+25.0% YoY
Avg Grant Size
$7K
-20.0% YoY
About Anthony and Dorothy Riddle Family Foundation
Based on IRS filings
Anthony and Dorothy Riddle Family Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in BOULDER, CO. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $576K in total assets. In 2024, it awarded 5 grants totaling $37K. Net investment income was $52K.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $576,445 | $561,556 | $598,249 |
| Revenue | $53,482 | $13,033 | $16,515 |
| Expenses | $38,593 | $38,569 | $38,590 |
| Qualifying Distributions | $38,593 | $38,569 | $38,590 |
| Net Investment Income | $51,887 | $22,621 | $19,091 |
| Distributable Amount | $40,162 | $36,088 | $39,142 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 5 recipients in 2024
Grant Size Distribution
22 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Dorothy Kathryn Riddle | 1 | 1 | — |
| Christopher Cooper Riddle | 1 | 1 | — |
| Kathryn Riddle Penzkover | 1 | 1 | — |
Subject Areas
Focus areas based on grantmaking activity
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Similar funders by location and focus area
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Data last updated April 2026. Sourced from IRS Form 990-PF filings.
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