The Marvin and Carol Muenzler Foundation

Private foundation · Grantmaker San Antonio, TX EIN: 33-2176306

The Marvin and Carol Muenzler Foundation is a private foundation, based in San Antonio, TX. IRS filing data is available from 2024 through 2025. As of 2025, the organization holds $4.6M in total assets. In 2025, it awarded 1 grant totaling $32K. Net investment income was $225K.

Key facts about The Marvin and Carol Muenzler Foundation

In short: The Marvin and Carol Muenzler Foundation gave $32K across 1 grant in 2025 (avg $32K), mostly in Texas. Source: 2025 IRS Form 990-PF.

EIN
33-2176306
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$31,576
Grants made (2025)
1
Average grant
$31,576
Median grant
$31,576
Total assets
$4,560,211
Primary geography
Texas (100% of itemized 2025 grant dollars)

Data from IRS Form 990-PF, 2025; updated September 2026.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$4.6M

+611.3% YoY

Annual Giving

$32K

Grant Count

1

Avg Grant Size

$32K

Under IRS private-foundation payout rules, The Marvin and Carol Muenzler Foundation reported a distributable amount of $140K for 2025 — the minimum it must pay out in qualifying distributions.

How The Marvin and Carol Muenzler Foundation gives

  • In 2025 it paid out 33% 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.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

Share of the 2025 grant dollars on its one itemized grant.

States

Cities

San Antonio

Giving Over Time

Total grant dollars and number of grants per year

$0$10K$20K$30K$40K0 grants2024 1 grant2025

In 2025 it made 1 grant totaling $32K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top recipient in 2025

San Antonio Area Foundation: $32KSan Antonio Area Foundation$32K

The largest 2025 recipient was San Antonio Area Foundation ($32K).

Grant Size Distribution

1 grant across all recorded years

1<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 1 grant of 1 (100%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
San Antonio Area Foundation San Antonio, TXUnrestricted Grant$31,576

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$2M$4M$6M2024 2025
Metric20252024
Total Assets$4,560,211$641,146
Revenue$3,980,171$641,146
Expenses$61,106—
Qualifying Distributions$45,829—
Net Investment Income$224,900—
Distributable Amount$140,113$31,576

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 2, 2025)
  2. Added Form 990-PF for fiscal year 2025 (received by the IRS May 14, 2026)
  3. IRS filings on file for fiscal year 2024

Leadership & Key People

Officers and directors from IRS filings

The Marvin and Carol Muenzler Foundation's only listed officer is Frost Bank Trustee, Trustee on every filing since 2024 (compensated).

Officers on the 2025 filing

  • Frost Bank Trustee

    Trustee

    On filings since 2024

    40 hrs/week

    $27K (2025)

Data from IRS Form 990 filings, 2024–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Compensation Overview

From 2025 IRS filing

Frost Bank Trustee — Trustee: $27KFrost Bank TrusteeTrustee$27K

The highest reported compensation on the 2025 filing was $27K, to Frost Bank Trustee (Trustee).

Frequently asked questions about The Marvin and Carol Muenzler Foundation

How much does The Marvin and Carol Muenzler Foundation give each year?

The Marvin and Carol Muenzler Foundation gave $32K across 1 grant in 2025, according to its 2025 IRS Form 990-PF.

How large is The Marvin and Carol Muenzler Foundation?

The Marvin and Carol Muenzler Foundation reported $4.6M in total assets on its 2025 IRS Form 990-PF. It paid out $46K in qualifying distributions that year, against a required minimum of $140K (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 The Marvin and Carol Muenzler Foundation operate?

The Marvin and Carol Muenzler Foundation has awarded grants in Texas.

What is The Marvin and Carol Muenzler Foundation's EIN?

The Marvin and Carol Muenzler Foundation's EIN (Employer Identification Number) is 33-2176306. IRS Form 990 filing data is available on this page for 2024–2025.

Data last updated September 2026. Sourced from IRS Form 990-PF filings.

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