Astor Street Foundation Inc

Foundation · Grantmaker Milwaukee, WI EIN: 39-1656190

Astor Street Foundation Inc is a private philanthropic foundation based in Milwaukee, Wisconsin. Established in 1990, the organization operates as a 501(c)(3) grantmaking foundation with a volunteer leadership structure.

Key facts about Astor Street Foundation Inc

EIN
39-1656190
Latest 990 filing
Form 990-PF, 2024
Annual giving (2024)
$513,000
Grants made (2024)
45
Average grant
$11,400
Median grant
$5,000
New grantees (estimate)
19% first-time grantees (8 of 42, 2024)
Primary geography
Wisconsin (77% of itemized 2024 grant dollars)

Data from IRS Form 990-PF, 2024; updated September 2026. New grantees are estimated by matching recipient names across years (methodology).

Who Astor Street Foundation Inc funds

By grant dollars, the top recipient states for Astor Street Foundation Inc's 45 itemized 2024 grants were Wisconsin (77%) and Maine (16%). The most frequent recipient cities were Milwaukee, WI (27 grants), Cranberry Isles, ME (3 grants) and New York, NY (3 grants). 67% of grants with a stated purpose were for general or operating support.

Is Astor Street Foundation Inc open to new grantees?

19%

first-time grantees, 2024

In 2024, 8 of 42 grantees (19%) were first-time recipients. First grants averaged $28K; repeat grants $8K. How we count

Medians: $18K first-time, $5K repeat.

  • 74% of 2024 grantees were also funded in 2023. Method
  • Giving held roughly steady from 2021 to 2024 (+11%). Method

Estimate from itemized IRS Form 990-PF grant lists (2020–2024). 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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Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

—

Annual Giving

$513K

+15.3% YoY

Grant Count

45

-4.3% YoY

Avg Grant Size

$11K

+20.4% YoY

Research compiled by Grantable AI from public sources. Last updated April 2026.

Mission & Focus Areas

The foundation focuses on philanthropy and foundations as primary areas of support. Grant-making priorities include Education, Philanthropy, Voluntarism & Grantmaking, and Human Services.

Grantmaking

The foundation awarded approximately $445,000 in grants during the most recent fiscal year, with an average grant size of approximately $40 across a high volume of grants.

Grant Range

$5,000

Average Grant

of approximately $40 across a high volume of grants.

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Geographic Focus

Where this funder awards grants

The foundation provides funding across multiple U.S. states, with particular focus on:

  • Wisconsin
  • Maine
  • Massachusetts
  • New York
  • Illinois
  • California
  • Georgia
  • Maryland

Primary funding cities include Milwaukee, New York, and Chicago.

Grant Distribution by State

8states

Share of all 45 itemized 2024 grant dollars.

States

CaliforniaGeorgiaIllinoisMassachusettsMarylandMaineNew YorkWisconsin

Cities

MilwaukeeCranberry IslesNew YorkAmherstGraftonHagerstownMadisonNortheast HarborVeniceWauwatosaAtlantaRiver HillsSan QuentinChicagoIslesfordMarina Del ReyRocklandCranberry IsNewtonPortland

Financial History

Multi-year comparison from IRS filings

Assets & Revenue (2023):

  • Total assets: $2,308,661
  • Annual revenue: $373,739
  • Annual expenses: $466,910
  • Total liabilities: $0

Asset Growth: Assets increased 2.6% from the previous year.

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$0.275$0.55$0.8250000000000001$1.120202021202220232024
Metric202420232022
Total Assets———
Revenue———
Expenses———
Qualifying Distributions———
Net Investment Income———
Distributable Amount———

Data update history

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal years 2020–2024

Giving Over Time

Total grant dollars and number of grants per year

$0$128K$257K$385K$513K39 grants202039 grants202136 grants202247 grants202345 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

Cranberry Isles Realty Trust: $75KCranberry Isles Realty Trust$75KMilwaukee Institute of Art Design: $65K across 2 grantsMilwaukee Institute of ArtDesign$65K · 2 grantsMilwaukee Art Museum: $50K across 2 grantsMilwaukee Art Museum$50K · 2 grantsSojourner Family Peace Center: $50KSojourner Family Peace Center$50KMilwaukee Film: $50KMilwaukee Film$50KFroedtert Hospital Foundation Inc: $50KFroedtert Hospital FoundationInc$50KLynden Sculpture Garden: $20KLynden Sculpture Garden$20KRadio Milwaukee: $15KRadio Milwaukee$15KMeta House: $13K across 2 grantsMeta House$13K · 2 grantsThe Ability Center: $10KThe Ability Center$10K

Grant Size Distribution

206 grants across all recorded years

187<$50K19$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest recipients include Cranberry Isles Realty Trust ($75,000), Milwaukee Institute of Art Design ($65,000 across 2 grants), Milwaukee Art Museum ($50,000 across 2 grants).

RecipientPurposeAmount
Cranberry Isles Realty Trust Cranberry Isles, MEWELCOME HOME CAMPAIGN$75,000
MILWAUKEE INSTITUTE OF ART DESIGN Milwaukee, WISTUDENT SCHOLARSHIPS$60,000
SOJOURNER FAMILY PEACE CENTER Milwaukee, WIHOPE LIVES HERE CAMPAIGN$50,000
Milwaukee Film Milwaukee, WIGENERAL OPERATING SUPPORT$50,000
FROEDTERT HOSPITAL FOUNDATION INC Milwaukee, WIACCELERATOR PROGRAM$50,000
MILWAUKEE ART MUSEUM Milwaukee, WIBRADLEY COLLECTION 50TH ANNIVERVERSARY$40,000
LYNDEN SCULPTURE GARDEN River Hills, WIANNUAL CAMPAIGN$20,000
Radio Milwaukee Milwaukee, WIGENERAL OPERATING SUPPORT$15,000
Milwaukee Art Museum Milwaukee, WIOperating Support$10,000
THE ABILITY CENTER Milwaukee, WIPILOT TO PURPOSE INITIATIVE$10,000

Leadership & Key People

Leadership team and compensation from IRS filings

The foundation is led by a volunteer team:

  • Sarah O Zimmerman – President and Treasurer
  • Lynde B Uihlein – Vice President
  • John U Olson – Secretary

All leadership positions are held on a voluntary basis without compensation.

Compensation Overview

No officer or director reported compensation in the available filings.

From 2024 IRS filing

NameTitleHoursCompensation
Lynde B UihleinVice President1—
John U OlsonSecretary1—
Sarah O ZimmermanPresident&Treas2—

Frequently Asked Questions

What does Astor Street Foundation Inc fund?

The foundation focuses on philanthropy and foundations as primary areas of support. Grant-making priorities include Education, Philanthropy, Voluntarism & Grantmaking, and Human Services.

How do I apply for a grant from Astor Street Foundation Inc?

**Grant Activity:** • Total grants awarded (2023): 47 grants • Total annual giving: $444,846–$445,000 • Median grant size: $5,000 • Grant range: $1,000–$75,000 • Open to new applicants: Yes • Percentage of new applicants funded: 12% **Grant Distribution:** The foundation awarded approximately $445,000 in grants during the most recent fiscal year, with an average grant size of approximately $40 across a high volume of grants.

Where does Astor Street Foundation Inc make grants?

The foundation provides funding across multiple U.S. states, with particular focus on: • Wisconsin • Maine • Massachusetts • New York • Illinois • California • Georgia • Maryland Primary funding cities include Milwaukee, New York, and Chicago.

What size grants does Astor Street Foundation Inc award?

In 2024, Astor Street Foundation Inc awarded 45 grants totaling $513K — an average of about $11K per grant, based on its IRS Form 990 filings.

What is Astor Street Foundation Inc's EIN?

Astor Street Foundation Inc's EIN (Employer Identification Number) is 39-1656190. IRS Form 990 filing data is available on this page for 2020–2024.

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Data last updated September 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.

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