Mueller Foundation
Mueller Foundation is a private foundation, based in Denver, CO. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $219K in total assets. In 2024, it made $1K in qualifying distributions. Net investment income was $1K.
Mueller Foundation at a glance
- Total assets
- $218,559
- +1.5% vs 2023
- Revenue (2024)
- $3,333
- +1.2% vs 2023
- Qualifying distributions (2024)
- $1,258
- +562.1% vs 2023
- Expenses (2024)
- $3,454
- +79.0% vs 2023
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026.
Who Mueller Foundation funds
How this funder distributes its grants
Grant Size Distribution
4 grants across all recorded years
The most common grant size was under $50K: 4 grants of 4 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
How Mueller Foundation gives
- In 2024 it paid out 14% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2022, annual grant giving ranged from $10K (2021) to $20K (2020). In 2022 it made 1 grant totaling $10K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Maia Mentorship Program Denver, CO | Maia is engineered to respond to the need for high-quality holistic education that is culturally relevant in rural guatemala. | $10,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2024 | $218,559 | $3,333 | $3,454 | — | — | $1,258 | $1,218 | $9,067 |
| 2023 | $215,225 | $3,295 | $1,930 | — | — | $190 | $1,585 | $7,864 |
| 2022 | $211,930 | $3,239 | $13,611 | $10,000 | 1 | $10,000 | $1,639 | $7,336 |
| 2021 | $209,092 | $28,837 | $10,010 | $10,000 | 1 | $10,000 | $28,837 | $6,897 |
| 2020 | $190,255 | $4,775 | $21,636 | $20,000 | 2 | — | $3,275 | $7,134 |
Under IRS private-foundation payout rules, Mueller Foundation reported a distributable amount of $9K for 2024 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Mueller Foundation is led by Kate Delzell, President on every filing since 2020; none of the 4 officers listed in 2024 report compensation.
Officers on the 2024 filing
Kate Delzell
President
On filings since 2020
5 hrs/week
No compensation reported
Emily Mueller
Officer
On filings since 2020
1 hr/week
No compensation reported
Lawrence Mueller
Officer
On filings since 2020
1 hr/week
No compensation reported
Mary Kay Mueller
Officer
On filings since 2020
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about Mueller Foundation
How large is Mueller Foundation?
Mueller Foundation reported $219K in total assets on its 2024 IRS Form 990-PF. It paid out $1K in qualifying distributions that year, against a required minimum of $9K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
Where does Mueller Foundation operate?
Mueller Foundation has awarded grants in Colorado.
What is Mueller Foundation's EIN?
Mueller Foundation's EIN (Employer Identification Number) is 46-1613311. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated October 2026. Sourced from IRS Form 990-PF filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS November 12, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS November 15, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS November 15, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS November 15, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS November 17, 2025)
- IRS filings on file for fiscal years 2020–2024
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Mueller Foundation down — hundreds of funders to go?