Block 100 Foundation Inc

Private foundation · Grantmaker Middleton, WI EIN: 27-5099631

Block 100 Foundation Inc is a private foundation focused on Arts, Culture & Humanities, based in Middleton, WI. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $16.6M in total assets. In 2025, it awarded 3 grants totaling $203K.

Block 100 Foundation Inc at a glance

In short: Block 100 Foundation Inc gave $203K across 3 grants in 2025 (avg $68K), mostly in Wisconsin. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$202,500
-49.4% vs 2024
Grants made (2025)
3
+50.0% vs 2024
Average grant
$67,500
-66.3% vs 2024
Median grant
$100,000
Total assets
$16,555,340
-4.1% vs 2024
Primary geography
Wisconsin (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 Block 100 Foundation Inc funds

How this funder distributes its grants

Top Recipients

Top 3 recipients in 2025

Mmoca: $100KMmoca$100KOverture Center: $100KOverture Center$100KDowntown Madison Inc: $3KDowntown Madison Inc$3K

The largest 2025 recipient was Mmoca ($100K). Together the top 3 received $203K.

Grant Size Distribution

11 grants across all recorded years

1<$50K$50–100K6$100–250K4$250–500K$500K–1M$1–5M$5M+

The most common grant size was in the $100–250K range: 6 grants of 11 (55%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

Share of 2025 grant dollars across all 3 itemized grants.

States

Cities

Madison

How Block 100 Foundation Inc gives

  • Giving fell 49% from 2022 to 2025. 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$100K$200K$300K$400K2 grants2020 2 grants2021 2 grants2022 2 grants2023 2 grants2024 3 grants2025

From 2020 to 2025, annual grant giving ranged from $203K (2025) to $400K (2024). In 2025 it made 3 grants totaling $203K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Mmoca Madison, WITo contribute to the cultural arts in the city of madison.$100,000
Overture Center Madison, WITo contribute to the cultural arts in the city of madison.$100,000
Downtown Madison Inc Madison, WITo contribute to the cultural arts in the city of madison.$2,500
Your AI grants department

Ready to take the next step with Block 100 Foundation Inc?

Fully replaces Grant database subscriptions Instrumentl · Foundation Directory · GrantStation & similar

Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying Distributions
2025$16,555,340$1,112,490$1,675,303$202,5003$207,608
2024$17,272,008$960,205$1,713,566$400,0002$412,497
2023$17,832,430$976,407$1,596,307$400,0002$404,419
2022$18,719,725$1,116,192$1,555,705$400,0002$404,149
2021$18,901,451$2,662,277$1,672,924$400,0002$403,654
2020$19,736,844$755,275$1,468,137$350,0002—

Leadership & Key People

Officers and directors from IRS filings

Block 100 Foundation Inc is led by Grant J. Frautschi, Director & President on every filing since 2020; none of the 5 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Grant J. Frautschi

    Director & President

    On filings since 2020

    5 hrs/week

    No compensation reported

  • George E. Austin

    Director

    On filings since 2020

    5 hrs/week

    No compensation reported

  • Margo Belz

    Director & Secretary

    On filings since 2020

    10 hrs/week

    No compensation reported

  • Pleasant T. Rowland

    Director

    On filings since 2020

    5 hrs/week

    No compensation reported

  • W. Jerome Frautschi

    Director & Treasurer

    On filings since 2020

    5 hrs/week

    No compensation reported

Data from IRS Form 990 filings, 2020–2025. "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 Block 100 Foundation Inc

How much does Block 100 Foundation Inc give each year?

Block 100 Foundation Inc gave $203K across 3 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $400K across 2 grants.

What is Block 100 Foundation Inc's typical grant size?

Block 100 Foundation Inc's median grant in 2025 was $100,000, and its average grant was $67,500, across 3 grants on its 2025 IRS Form 990-PF.

Where does Block 100 Foundation Inc give grants?

Block 100 Foundation Inc gives mostly in Wisconsin: 100% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Madison, WI (3 grants).

Does Block 100 Foundation Inc give general operating support?

Not in 2025: none of the 3 grants with a stated purpose on Block 100 Foundation Inc's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "To Contribute to the Cultural Arts in the City of Madison." (3 grants).

How large is Block 100 Foundation Inc?

Block 100 Foundation Inc reported $16.6M in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $1.1M.

What is Block 100 Foundation Inc?

Block 100 Foundation Inc is a private foundation focused on Arts, Culture & Humanities, based in Middleton, WI. It holds $16.6M in total assets as of 2025.

What is Block 100 Foundation Inc's EIN?

Block 100 Foundation Inc's EIN (Employer Identification Number) is 27-5099631. IRS Form 990 filing data is available on this page for 2020–2025.

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

Data update history

(2)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2025 (received by the IRS May 15, 2026)
  2. IRS filings on file for fiscal years 2020–2024

Explore Open Grants

Browse active grant opportunities in Block 100 Foundation Inc's focus areas in our free grants database

Similar Funders

Funders with grantees in common, and similar funders in Wisconsin

The Martin Family Foundation

Ann Arbor, MI

The Martin Family Foundation funds education, health, humanitarian work, and the arts, with most of its giving in Michigan. In 2024, grants ranged from $1,000 to $150,000, with a median of $5,000. It gives only to preselected charitable organizations and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$15.9M

Grants

97

Total Given

$860K

Thrivent Charitable Impact & Investing

Appleton, WI

Thrivent Charitable Impact & Investing distributes donor-directed and program donations to a broad range of causes and organizations in local, national, and global communities. Its 2024 grants had a median of $11,520 and ranged from $5,006 to $5 million. The profile does not state whether it accepts unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$939.7M

Grants

2,565

Total Given

$84.6M

Dane Buy Local Foundation Inc

Madison, WI

Dane Buy Local Foundation supports buy-local education, collaboration, and programs that strengthen locally owned businesses and communities in Dane County and South Central Wisconsin; it also offers scholarships to area high school seniors pursuing post-secondary business or entrepreneurship studies. No typical award amount is stated, and the information does not say whether the Foundation accepts unsolicited funding requests.

Community Improvement & Capacity Building

Assets

$16K

Grants

1

Total Given

$136K

Alliant Energy Foundation Inc

Madison, WI

Assets

$28.5M

Grants

929

Total Given

$2.4M

Greater Milwaukee Foundation Inc

Milwaukee, WI

The Greater Milwaukee Foundation funds nonprofit programs, projects, general operations and capital needs, with priorities including early childhood education, housing, basic needs, health, arts and culture, and scientific research. Its competitive grants primarily serve Milwaukee, Ozaukee, Washington and Waukesha counties; in 2024, the median grant was about $27,800, though awards varied widely. It runs competitive grant cycles, but whether it accepts unsolicited requests is not stated.

Philanthropy, Voluntarism & Grantmaking

Assets

$1.1B

Grants

838

Total Given

$66.8M

Give Back Foundation

Madison, WI

Give Back Foundation distributes donor-designated contributions through workplace giving and other giving platforms to selected 501(c)(3) charities, rather than setting its own cause areas. In 2025, grants had a median of $9,066, with recipient organizations concentrated in Virginia, California, and Washington, D.C.; it does not accept unsolicited requests or work directly with charities.

Assets

$31.3M

Grants

639

Total Given

$40.1M

More similar funders

More Funders in Wisconsin

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

Figures come from Block 100 Foundation Inc'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.

Block 100 Foundation Inc down — hundreds of funders to go?

Want AI to do this for you?