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· Private foundation

Marjorie Siebert Aylen Foundation

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$195k
Granted FY2025still arriving
9
Grants FY2025still arriving
1
States reached
$50k
Largest
01What it funds
0199% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Health$495kEducation$283kArts & Culture$115kScience & Tech$115kAnimals$100kFood & Nutrition$75kHuman Services$40kPublic Benefit$25kOther$0
02FY2025 · 9 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • $10k–50k8 grants · $145k
  • $50k–250k1 grant · $50k
$15,000
Median grant
1
States reached
$2.8M
Total assets
Largest grants
RecipientAmount
HISTORIC HAYMARKET MILWAUKEE$50,000
UWM RESEARCH FOUNDATION$30,000
UNIV OF WI FOUNDATION$25,000
PLANNED PARENTHOOD OF WISCONSIN$25,000
CHILDREN'S HOSPITAL OF WI$15,000
FAMILY PROMISE OF OZAUKEE CTY$15,000
LIFE NAVIGATORS$15,000
WUWUM$10,000
HUNGER TASK FORCE$10,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Dollar for dollar, its grants (FY17–25) land where the poverty rate runs at 15%, against an area that typically sits at 8%. 92% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 8%WAUKESHA WEST HIGH SCHOOL: $10k → 5%FAMILY PROMISE OF OZAUKEE CTY: $15k → 6%UNIVERSITY OF WISCONSIN FOUNDATION: $45k → 10%PLANNED PARENTHOOD OF WISCONSIN: $50k → 17%WAUKESHA WEST HIGH SCHOOL: $10k → 5%FAMILY PROMISE OF OZAUKEE CTY: $15k → 6%UNIVERSITY OF WISCONSIN FOUNDATION: $40k → 10%UWM RESEARCH FOUNDATION: $30k → 17%WAUKESHA WEST HIGH SCHOOL: $10k → 5%FAMILY PROMIZE OF OZAUKEE COUNTY: $10k → 6%UNIV OF WI FOUNDATION: $25k → 10%PLANNED PARENTHOOD OF WISCONSIN IN: $25k → 17%WAUKESHA WEST HIGH SCHOOL: $10k → 5%UNIVERSITY OF WISCONSIN FOUNDATION: $25k → 10%PLANNED PARENTHOOD OF WISCONSIN: $25k → 17%UNIVERSITY OF WISCONSIN FOUNDATION: $25k → 10%PLANNED PARENTHOOD OF WISCONSIN: $25k → 17%UNIVERSITY OF WISCONSIN FOUNDATION: $25k → 10%PLANNED PARENTHOOD OF WISCONSIN: $25k → 17%UNIVERSITY OF WISCONSIN FOUNDATION: $25k → 10%PLANNED PARENTHOOD OF WISCONSIN: $25k → 17%UNIVERSITY OF WISCONSIN FOUNDATION: $15k → 10%PLANNED PARENTHOOD OF WISCONSIN IN: $25k → 17%UW SCHOOL OF VETERINARY SCIENCE: $50k → 10%PLANNED PARENTHOOD OF WISCONSIN: $25k → 17%UWM RESEARCH FOUNDATION: $20k → 17%UWUM: $20k → 17%UWM RESEARCH FOUNDATION: $15k → 17%UWM RESEARCH FOUNDATION: $15k → 17%PLANNED PARENTHOOD OF WISCONSIN: $15k → 17%UWM RESEARCH FOUNDATION: $15k → 17%UWM RESEARCH FOUNDATION: $10k → 17%UWM RESEARCH FOUNDATION: $10k → 17%KATHY'S HOUSE: $10k → 17%KATHY'S HOUSE: $10k → 17%WUWUM: $10k → 17%LIFE NAVIGATORS: $20k → 17%LIFE NAVIGATORS: $15k → 17%HISTORIC HAYMARKET MILWAUKEE: $50k → 17%HISTORIC HAYMARKET MILWAUKEE: $25k → 17%MILWAUKEE PUBLIC MUSEUM: $20k → 17%CHILDREN'S HOSPITAL OF WI: $25k → 17%ZOOLOGICAL SOCIETY OF MILWAUKEE: $25k → 17%KATHY'S HOUSE: $25k → 17%CHILDREN'S HOSPITAL OF WI: $20k → 17%CHILDREN'S HOSPITAL OF WI: $15k → 17%CHILDREN'S HOSPITAL OF WI: $15k → 17%ZOOLOGICAL SOCIETY OF MIL: $15k → 17%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

89%of every dollar goes to organizations it has funded before.
$1.1M · 16 repeat orgs$143k to everyone else

Grantees it renews have grown median revenue +41% since the first grant, against 0% for those funded once.

16 repeat relationships: 8 still active in FY2025, 8 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

16
10

Total granted

$1.1M
$133k

Median revenue growth · since first grant

+41%
0%

Still filing today

56%
50%

New vs renewed · share of each year

In FY2025, 95% of grant dollars renewed an existing relationship; $10k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
HealthEducationArts & CultureRecreation & SportsCommunity ImprovementPublic BenefitOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

  • PP
    PLANNED PARENTHOOD OF WISCONSIN INC
    9× · 2017–2025 · $240k · revenue +7%
  • UO
    UNIVERSITY OF WISCONSIN FOUNDATION
    8× · 2017–2025 · $225k · revenue +39%
  • UR
    UWM RESEARCH FOUNDATION INC
    7× · 2017–2025 · $115k · revenue +9%

Funded once

  • US
    UW SCHOOL OF VETERINARY SCIENCE
    one grant, 2018 · $50k
  • ZS
    ZOOLOGICAL SOCIETY OF MILWAUKEE
    one grant, 2024 · $25k
  • U
    UWUM
    one grant, 2024 · $20k
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Medical Society of Milwaukee Foundation Inc
Health
2
The Uwm Foundation Inc

The mission of the uwm foundation, inc. is to support the educational, literary, and scientific endeavors of the university of wisconsin-milwaukee by receiving, managing, and distributing gifts to benefit the university's students,…

Education
3
Wisconsin Policy Forum Inc

We conduct impartial public policy research and analysis to drive informed debate and effective decision-making in the state of wisconsin.

Public Benefit
4
The Uwm Real Estate Foundation Inc

To partner with the public and private sectors to develop and hold real estate for the benefit of the university of wisconsin-milwaukee. the uwm real estate foundation, inc. holdings may include any properties that advance the mission of…

Housing & Shelter
5
Mathematics Institute of Wisconsin Co Kathryn Leverenz
Education
6
Milwaukee Public Schools Foundation

To promote educational excellence and strengthen community participation in milwaukee public schools.

Philanthropy
7
Wisconsin Public Health Association Inc

Our mission is to build collective action to address root-causes and advance public health policy & practice to achieve a vision for a healthier, safer, and more equitable wisconsin.

—
8
Milwaukee Women Inc

Milwaukee women inc is an organization of executives determined to change the quality and composition of corporate boards to maximize the performance of public and private companies with a focus on women and women of color.

Education
9
The Wausaukee Charitable Foundation
Philanthropy
10
Wisconsin Museum of Nature and Culture

WMNC will continue constructing the new Milwaukee Public Museum facility to completion and will then continue as the owner and operator of the new museum.

Arts & Culture
11
The Medical College of Wisconsin Inc

The medical college of wisconsin (mcw) is a distinguished leader and innovator in the education and development of the next generation of physicians, (continued in schedule o)

Education
12
Milwaukee Bucks Foundation Inc

Improve the quality of life for youth and families in wisconsin focusing on youth education, health, wellness and community betterment

Human Services
How this is measured
The grantee most central to the portfolio’s shape is Next Door Foundation Inc; the most unlike its peers is Broads for a Cause. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

16 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 16 of the 27 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
1
Early backer (in before they grew)
14/16
Grantees still filing
11/16
Grew since first funded

Where the money sits, by cause and then by grantee

CHILDREN'S HOSPITAL OF WI: $105,000 · OtherCHILDREN'S HOSPITAL OF WIHUNGER TASK FORCE INC: $75,000 · OtherHUNGER TASK FORCE INCLIFE NAVIGATORS INC: $55,000 · OtherLIFE NAVIGATORS INCUW SCHOOL OF VETERINARY SCIENCE: $50,000 · OtherUW SCHOOL OF VETERINARY SCIENCEWAUKESHA WEST HIGH SCHOOL: $40,000 · OtherWAUKESHA WEST HIGH SCHOOLFAMILY PROMISE OF OZAUKEE CTY: $30,000 · OtherFAMILY PROMISE OF OZAUKEE CTYZOOLOGICAL SOCIETY OF MILWAUKEE: $25,000 · OtherZOOLOGICAL SOCIETY OF MIL: $25,000 · OtherMPS FOUNDATION: $20,000 · OtherUWUM: $20,000 · Other+5 more: $45,500 · Other+5 morePLANNED PARENTHOOD OF WISCONSIN INC: $240,000 · HealthPLANNED PARENTHOOD OF WISCON…Kathy's House Inc: $75,000 · HealthKathy's House Inc+1 more: $5,000 · HealthUNIVERSITY OF WISCONSIN FOUNDATION: $225,000 · EducationUNIVERSITY OF WISCON…+1 more: $2,500 · EducationUWM RESEARCH FOUNDATION INC: $115,000 · Community ImprovementUWM RESEAR…Historic Haymarket Milwaukee Inc: $75,000 · Arts & CultureHistoric …MILWAUKEE PUBLIC MUSEUM INC: $30,000 · Arts & CultureMILWAUKEE…NORTH SHORE BASEBALL ACADEMY INC: $6,000 · Recreation & SportsNEXT DOOR FOUNDATION INC: $5,000 · Recreation & SportsFAMILY PROMISE OF OZAUKEE COUNTY: $10,000 · Public BenefitBADGER BOYS STATE INCORPORATED: $5,000 · Youth Development
Other$490,500Health$320,000Education$227,500Community Improvement$115,000Arts & Culture$105,000Recreation & Sports$11,000Public Benefit$10,000Youth Development$5,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetPLANNED PARENTHOOD OF WISCONSIN INC: $240,000 over 9y, 0.1% of budgetUNIVERSITY OF WISCONSIN FOUNDATION: $225,000 over 8y, 0.0% of budgetUWM RESEARCH FOUNDATION INC: $115,000 over 7y, 2.0% of budgetKathy's House Inc: $75,000 over 6y, 0.9% of budgetHUNGER TASK FORCE INC: $75,000 over 8y, 0.1% of budgetHistoric Haymarket Milwaukee Inc: $75,000 over 2y, 0.1% of budgetLIFE NAVIGATORS INC: $55,000 over 4y, 0.6% of budgetMILWAUKEE PUBLIC MUSEUM INC: $30,000 over 2y, 0.2% of budgetFAMILY PROMISE OF OZAUKEE COUNTY: $10,000 over 1y, 0.4% of budgetHope Center Inc: $10,000 over 2y, 0.5% of budgetNEXT DOOR FOUNDATION INC: $5,000 over 1y, 0.0% of budgetCYSTIC FIBROSIS FOUNDATION: $5,000 over 1y, 0.0% of budgetBROADS FOR A CAUSE: $500 over 1y, 0.7% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

  • Who funds PLANNED PARENTHOOD OF WISCONSIN INC ↗
  • Who funds UNIVERSITY OF WISCONSIN FOUNDATION ↗
  • Who funds UWM RESEARCH FOUNDATION INC ↗
  • Who funds Kathy's House Inc ↗
  • Who funds HUNGER TASK FORCE INC ↗
  • Who funds Historic Haymarket Milwaukee Inc ↗
  • Who funds LIFE NAVIGATORS INC ↗
  • Who funds MILWAUKEE PUBLIC MUSEUM INC ↗
  • Who funds FAMILY PROMISE OF OZAUKEE COUNTY ↗
  • Who funds Hope Center Inc ↗
  • Who funds NORTH SHORE BASEBALL ACADEMY INC ↗
  • Who funds NEXT DOOR FOUNDATION INC ↗
  • Who funds BADGER BOYS STATE INCORPORATED ↗
  • Who funds CYSTIC FIBROSIS FOUNDATION ↗
  • Who funds BETHESDA PARENT TEACHER ORGANIZATION INC ↗
  • Who funds BROADS FOR A CAUSE ↗

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Schoenleber Foundation IncWI17.9× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Schoenleber Foundation Inc · Baird Foundation Inc · Green Bay Packers Foundation · Ellamae Siebert Foundation Inc · Alvin a Marion Birnschein Foundation Inc · Wauwatosa Savings & Loan Foundation · Jerome J and Dorothy H Holz Family Foundation C/O Donald Tushaus · Anon Charitable Trust · Archdiocese of Milwaukee Catholic Community Foundation Inc · Evan & Marion Helfaer Foundation · United Way of Greater Milwaukee & Waukesha County Inc · Greater Milwaukee Foundation Inc

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Marjorie Siebert Aylen Foundation funds: left to right is the share of its income from government, bottom to top the share from Marjorie Siebert Aylen Foundation. Bigger dots raise more.

2023
’20’21’22’23’24’25
no gov · 10%0%1%3%5%funder's share of their income ↑0%23%45%68%90%share of the org’s income from government →
    no gov moneyreceives it· size = income
    1get no government money at all
    8report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–90%
    typical government reliance, FY20–25
    How this is measured
    Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.
    05Through Plinth

    Warm introductions · Powered by PlinthPlus

    How do I get to Marjorie Siebert Aylen Foundation?

    Find your warmest path to Marjorie Siebert Aylen Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

    Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

    On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 27 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

    How this is measured
    Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

    Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

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