Sonntag Family Foundation (The)
Sonntag Family Foundation (The) is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in Phoenix, AZ. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $2.3M in total assets. In 2025, it awarded 12 grants totaling $159K. Net investment income was $55K.
Key facts about Sonntag Family Foundation (The)
In short: Sonntag Family Foundation (The) gave $159K across 12 grants in 2025 (avg $13K), mostly in Arizona. 58% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- EIN
- 26-2876575
- Latest 990 filing
- Form 990-PF, 2025
- Annual giving (2025)
- $158,750
- Grants made (2025)
- 12
- Average grant
- $13,229
- Median grant
- $10,000
- New grantees (estimate)
- 58% first-time grantees (7 of 12, 2025)
- Total assets
- $2,271,014
- Primary geography
- Arizona (62% of itemized 2025 grant dollars)
Data from IRS Form 990-PF, 2025; updated September 2026. New grantees are estimated by matching recipient names across years (methodology).
Financial Overview
From 2025 IRS Form 990-PF · View filing
Total Assets
$2.3M
-4.5% YoY
Annual Giving
$159K
-2.5% YoY
Grant Count
12
+50.0% YoY
Avg Grant Size
$13K
-35.0% YoY
Under IRS private-foundation payout rules, Sonntag Family Foundation (The) reported a distributable amount of $147K for 2025 — the minimum it must pay out in qualifying distributions.
Is Sonntag Family Foundation (The) open to new grantees?
58%
first-time grantees, 2025
In 2025, 7 of 12 grantees (58%) were first-time recipients. First grants averaged $18K; repeat grants $7K. How we count
Medians: $17K first-time, $2K repeat.
- 42% of 2025 grantees were also funded in 2024. Method
- Giving grew 145% from 2022 to 2025. Method
- In 2025 it paid out 109% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of all 12 itemized 2025 grant dollars.
Cities
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
Grant Size Distribution
41 grants across all recorded years
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| SUN DEVIL ATHLETICS Tempe, AZ | CHARITABLE CONTRIBUTION | $44,250 |
| WOMENS BOARD OF BARROW NEUROLOGICAL FOUNDATION Phoenix, AZ | CHARITABLE CONTRIBUTION | $25,000 |
| NATIONAL RESOURCES DEFENSE COUNCIL New York, NY | CHARITABLE CONTRIBUTION | $20,000 |
| SAN DIEGO FOOD BANK San Diego, CA | CHARITABLE CONTRIBUTION | $20,000 |
| ARCS FOUNDATION PHOENIX CHAPTER Phoenix, AZ | CHARITABLE CONTRIBUTION | $17,000 |
| ST ANNE CATHOLIC SCHOOL Laguna Niguel, CA | CHARITABLE CONTRIBUTION | $10,000 |
| JSERRA CATHOLIC SCHOOL San Juan Capistrano, CA | CHARITABLE CONTRIBUTION | $10,000 |
| ROSIE'S HOUSE MUSIC ACADEMY FOR CHILDREN Phoenix, AZ | CHARITABLE CONTRIBUTION | $5,000 |
| ASU FOUNDATION Tempe, AZ | CHARITABLE CONTRIBUTION | $2,500 |
| SEASON FOR SHARING Phoenix, AZ | CHARITABLE CONTRIBUTION | $2,000 |
Financial History
Multi-year comparison from IRS filings
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $2,271,014 | $2,378,851 | $2,439,134 |
| Revenue | $70,177 | $126,763 | $82,881 |
| Expenses | $178,014 | $187,046 | $103,050 |
| Qualifying Distributions | $159,950 | $163,375 | $76,000 |
| Net Investment Income | $54,611 | $37,892 | $41,991 |
| Distributable Amount | $147,054 | $194,279 | $124,361 |
Data update history
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2019 (received by the IRS June 15, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS April 30, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 4, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 3, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 9, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS November 6, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS May 12, 2026)
- Added Form 990-PF for fiscal year 2019 (received by the IRS June 15, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS April 30, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 4, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 3, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 9, 2024)
Leadership & Key People
Officers and directors from IRS filings
Sonntag Family Foundation (The) is led by Volker Sonntag, President on every filing since 2019; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Volker Sonntag
President
On filings since 2019
1 hr/week
No compensation reported
Lynne Sonntag
Secretary & Treasurer
On filings since 2019
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2019–2025. "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 Sonntag Family Foundation (The)
How much does Sonntag Family Foundation (The) give each year?
Sonntag Family Foundation (The) gave $159K across 12 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $163K across 8 grants.
What is Sonntag Family Foundation (The)'s typical grant size?
Sonntag Family Foundation (The)'s median grant in 2025 was $10,000, and its average grant was $13,229, across 12 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Sonntag Family Foundation (The) that year got $18K on average.
Where does Sonntag Family Foundation (The) give grants?
Sonntag Family Foundation (The) gives mostly in Arizona: 62% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were California (25%) and New York (13%). The most frequent recipient cities were Phoenix, AZ (6 grants) and Tempe, AZ (2 grants).
Who are Sonntag Family Foundation (The)'s largest grantees?
Sonntag Family Foundation (The)'s largest 2025 grantees include Sun Devil Athletics ($44,250), Womens Board of Barrow Neurological Foundation ($25,000) and National Resources Defense Council ($20,000), according to its 2025 IRS Form 990-PF. Together they received 56% of its itemized 2025 grant dollars.
How large is Sonntag Family Foundation (The)?
Sonntag Family Foundation (The) reported $2.3M in total assets on its 2025 IRS Form 990-PF. It paid out $160K in qualifying distributions that year, against a required minimum of $147K (roughly 5% of its investment assets).
What is Sonntag Family Foundation (The)?
Sonntag Family Foundation (The) is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in Phoenix, AZ. It holds $2.3M in total assets as of 2025.
What is Sonntag Family Foundation (The)'s EIN?
Sonntag Family Foundation (The)'s EIN (Employer Identification Number) is 26-2876575. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Here's the math on researching Sonntag Family Foundation (The) by hand.
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