Dennis K and Vivian D Siemer

Private foundation · Grantmaker Mankato, MN EIN: 41-1957558

Dennis K and Vivian D Siemer is a private foundation focused on Education, based in Mankato, MN. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $167K in total assets. In 2025, it awarded 1 grant totaling $14K. Net investment income was $12K.

Dennis K and Vivian D Siemer at a glance

In short: Dennis K and Vivian D Siemer gave $14K across 1 grant in 2025 (avg $14K), mostly in Minnesota. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$14,000
+12.0% vs 2024
Grants made (2025)
1
+0.0% vs 2024
Average grant
$14,000
+12.0% vs 2024
Median grant
$14,000
Total assets
$166,941
+7.1% vs 2024
Primary geography
Minnesota (100% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

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

Who Dennis K and Vivian D Siemer funds

How this funder distributes its grants

Top Recipients

Top recipient in 2025

ISD #77 - Mankato Area Public Schools: $14KISD #77 - Mankato Area PublicSchools$14K

The largest 2025 recipient was ISD #77 - Mankato Area Public Schools ($14K).

Grant Size Distribution

7 grants across all recorded years

7<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 7 grants of 7 (100%).

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

MankatoSt. PaulNorth Mankato

How Dennis K and Vivian D Siemer gives

  • Giving grew 109% from 2022 to 2025. Method
  • In 2025 it paid out 181% of its IRS minimum distribution (the 5% rule). 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

$0$5K$10K$15K2 grants2019 1 grant2020 2 grants2021 2 grants2022 1 grant2023 1 grant2024 1 grant2025

From 2019 to 2025, annual grant giving ranged from $3K (2019) to $14K (2025). In 2025 it made 1 grant totaling $14K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
ISD #77 - Mankato Area Public Schools Mankato, MNTo support educational opportunities at the high school level.$14,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$166,941$27,137$16,103$14,0001$14,987$11,675$8,291
2024$155,907$28,986$15,625$12,5001$14,079$11,073$7,289
2023$142,546$15,455$16,323$13,6001$14,911$9,169$7,094
2022$143,414$22,433$9,394$6,7002$8,706$8,935$6,789
2021$130,375$14,190$5,134$4,0002$4,524$13,682$7,113
2020$121,319$8,320$8,171$7,4181—$8,013$6,174
2019$121,170$6,808$3,576$2,8802—$7,019$6,120

Under IRS private-foundation payout rules, Dennis K and Vivian D Siemer reported a distributable amount of $8K for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

Dennis K and Vivian D Siemer is led by Dennis K. Siemer, President on every filing since 2019; none of the 8 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Dennis K. Siemer

    President

    On filings since 2019

    0.5 hrs/week

    No compensation reported

  • Peter Kuhlman

    Director

    On filings since 2022

    0.5 hrs/week

    No compensation reported

  • Henry Panowitsch

    Director

    On filings since 2024

    0.5 hrs/week

    No compensation reported

  • Ronald Bennett

    Director

    On filings since 2024

    0.5 hrs/week

    No compensation reported

  • Diane Dobitz

    Director

    New on the 2025 filing

    0.5 hrs/week

    No compensation reported

  • Kristy Schuck

    Director

    New on the 2025 filing

    0.5 hrs/week

    No compensation reported

  • Vivian D. Siemer

    Vice President

    Secretary → Secretary & Treasurer, 2020

    Secretary & Treasurer → Vice President, 2025

    On filings since 2019

    0.5 hrs/week

    No compensation reported

  • Susan Chambers

    Secretary & Treasurer

    Director → Secretary & Treasurer, 2025

    On filings since 2024

    0.5 hrs/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 Dennis K and Vivian D Siemer

How much does Dennis K and Vivian D Siemer give each year?

Dennis K and Vivian D Siemer gave $14K across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $13K across 1 grant.

How large is Dennis K and Vivian D Siemer?

Dennis K and Vivian D Siemer reported $167K in total assets on its 2025 IRS Form 990-PF. It paid out $15K in qualifying distributions that year, against a required minimum of $8K (roughly 5% of its investment assets).

What is Dennis K and Vivian D Siemer?

Dennis K and Vivian D Siemer is a private foundation focused on Education, based in Mankato, MN. It holds $167K in total assets as of 2025.

Where does Dennis K and Vivian D Siemer operate?

Dennis K and Vivian D Siemer has awarded grants in Minnesota.

What is Dennis K and Vivian D Siemer's EIN?

Dennis K and Vivian D Siemer's EIN (Employer Identification Number) is 41-1957558. 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.

Data update history

(8)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2019 (received by the IRS July 14, 2020)
  2. Updated Form 990-PF for fiscal year 2020 (received by the IRS June 22, 2022)
  3. Updated Form 990-PF for fiscal year 2021 (received by the IRS June 22, 2022)
  4. Updated Form 990-PF for fiscal year 2022 (received by the IRS July 26, 2023)
  5. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 8, 2024)
  6. Added Form 990-PF for fiscal year 2024 (received by the IRS July 7, 2025)
  7. Added Form 990-PF for fiscal year 2025 (received by the IRS May 28, 2026)
  8. IRS filings on file for fiscal years 2019–2023

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Dennis K and Vivian D Siemer's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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