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· Private foundation

Louis C Blumberg 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.

$122k
Granted FY2025still arriving
9
Grants FY2025still arriving
3
States reached
$33k
Largest
01What it funds
0191% classified

What it funded, over time

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

Arts & Culture$235kYouth Development$216kHealth$139kInternational$104kEducation$86kReligion$30kPhilanthropy$30kRecreation & Sports$26kOther$0
02FY2025 · 9 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k5 grants · $14k
  • $10k–50k4 grants · $108k
$5,000
Median grant
3
States reached
$900k
Total assets
Largest grants
RecipientAmount
JEWISH AGENCY FOR ISRAEL N AMERICA$33,000
DETROIT JEWISH NEWS FOUNDATION$25,000
JEWISH HOSPICE & CHAPLAINCY$25,000
ARIZONA JEWISH HISTORICAL SOCIETY$25,000
JARC$5,000
MICH JEWISH SPORTS HALL OF FAME FDN$3,200
KIDS KICKING CANCER$2,500
FRIENDS OF UNITED HATZALAH$1,800
ZEKELMAN HOLOCAUST CENTER$1,000
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:

Its human-services grants (FY20–25, $8k) land where the poverty rate runs at 8%, against an area that typically sits at 9%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 9%JARC: $5k → 8%JARC: $3k → 8%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.

82%of every dollar goes to organizations it has funded before.
$789k · 9 repeat orgs$175k to everyone else

9 repeat relationships: 5 still active in FY2025, 4 since wound down; 4 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

9
7

Total granted

$789k
$144k

Median revenue growth · since first grant

+1%
+17%

Still filing today

44%
43%

New vs renewed · share of each year

In FY2025, 74% of grant dollars renewed an existing relationship; $31k 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
Arts & CultureEducationReligionHuman ServicesHealthOther
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

  • FC
    FRIENDSHIP CIRCLE
    4× · 2017–2022 · $216k
  • TD
    THE DETROIT JEWISH NEWS FOUNDATION INC
    7× · 2018–2025 · $175k · revenue +487%
  • IG
    Individual grant recipient
    4× · 2017–2022 · $128k

Funded once

  • HD
    HILLEL DAY SCHOOL OF METRO DETROIT
    one grant, 2019 · $75k · revenue +17%
  • CS
    CONGREGATION SHAAREY ZEDEK
    one grant, 2022 · $25k
  • VO
    VIOLINS OF HOPE FOUNDATION
    one grant, 2018 · $25k
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
Hillel of Metropolitan Detroit

Inspire students to be active in jewish life.

Education
2
Jewish Federation of Detroit

The jewish federation of detroit is the cornerstone of our jewish community. we are committed to taking care of the needs of the jewish people and building a strong and vibrant jewish future, in detroit, in israel and around the world.

Philanthropy
3
The Jewish Fund

The jewish fund is organized and operates exclusively for charitable, educational, and religious purposes. the fund's primary activities are: supporting a jewish health care mission in the greater detroit area and michigan; promotion of…

Philanthropy
4
Jewish Historical Society of Michigan

Jewish historical society of michigan shares and celebrates the experiences and contributions of the jewish people, communities and institutions of michigan.

—
5
University of Judaism Foundation
—
6
Hebrew Free Loan Association

The association provides financial assistance to jewish people in the state of michigan through the lending of money without interest in accordance with core jewish values, respect, compassion, and confidentiality.

Philanthropy
7
The Jewish Agency for Israel

The jewish agency binds jews across ideologies and civilizations together in a worldwide jewish family with israel at its center. it provides the global framework for aliyah, ensures global jewish safety, strengthens jewish identity and…

—
8
Jewish Home and Aging Services

We nurture a sense of community and enrich the lives of older adults, while embracing jewish values and celebrating life.

—
9
Jewish Childrens Museum

To further jewish historical education among youths

Arts & Culture
10
Jsl Foundation

We nurture a sense of community and enrich the lives of older adults, while embracing jewish values and celebrating life.

Human Services
11
American Jewish Historical Society

See schedule o - the american jewish historical society (the "society") is the oldest ethnic, cultural archive in the united states. the society provides access to more than 30 million documents and 50,000 books, photographs, art and…

Arts & Culture
12
Hillel Jewish University Center

To enrich the lives of jewish undergraduate students so that they may enrich the jewish people and the world.

—
How this is measured
The grantee most central to the portfolio’s shape is The Detroit Jewish News Foundation Inc; the most unlike its peers is Kids Kicking Cancer Inc. 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

11 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. 11 of the 21 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)
5
Early backer (in before they grew)
11/11
Grantees still filing
9/11
Grew since first funded

Where the money sits, by cause and then by grantee

FRIENDSHIP CIRCLE: $216,000 · OtherFRIENDSHIP CIRCLEIndividual grant recipient: $127,500 · OtherIndividual grant recipientJEWISH AGENCY FOR ISRAEL N AMERICA: $104,000 · OtherJEWISH AGENCY FOR ISRAEL N AMERICAArizona Jewish Historical Society: $25,000 · OtherCONGREGATION SHAAREY ZEDEK: $25,000 · OtherVIOLINS OF HOPE FOUNDATION: $25,000 · OtherTAMARACK CAMPS: $20,000 · Other+4 more: $25,700 · OtherTHE DETROIT JEWISH NEWS FOUNDATION INC: $175,000 · Arts & CultureTHE DETROIT JEWISH N…+3 more: $6,000 · Arts & CultureJEWISH HOSPICE & CHAPLAINCY NETWORK: $125,000 · ReligionJEWISH HOSPICE…HILLEL DAY SCHOOL OF METRO DETROIT: $75,000 · Education+1 more: $1,000 · EducationUNITED JEWISH FOUNDATION: $30,000 · PhilanthropyJARC: $7,500 · Human ServicesKIDS KICKING CANCER INC: $6,500 · Health
Other$568,200Arts & Culture$181,000Religion$125,000Education$76,000Philanthropy$30,000Human Services$7,500Health$6,500

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

25%50%75%100%$1.0M$10Mgrantee revenue →↑ funder's share of their budgetTHE DETROIT JEWISH NEWS FOUNDATION INC: $175,000 over 7y, 5.8% of budgetJEWISH HOSPICE & CHAPLAINCY NETWORK: $125,000 over 5y, 0.8% of budgetHILLEL DAY SCHOOL OF METRO DETROIT: $75,000 over 1y, 0.4% of budgetUNITED JEWISH FOUNDATION: $30,000 over 1y, 0.1% of budgetJARC: $7,500 over 2y, 0.1% of budgetKIDS KICKING CANCER INC: $6,500 over 3y, 0.1% of budgetTHE MICHIGAN JEWISH SPORTS HALL OF FAME INC: $3,200 over 1y, 2.3% of budgetJEAN AND SAMUEL FRANKEL JEWISH ACADEMY OF METROPOLITAN DETROIT: $1,000 over 1y, 0.0% 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 THE DETROIT JEWISH NEWS FOUNDATION INC ↗
  • Who funds JEWISH HOSPICE & CHAPLAINCY NETWORK ↗
  • Who funds HILLEL DAY SCHOOL OF METRO DETROIT ↗
  • Who funds UNITED JEWISH FOUNDATION ↗
  • Who funds Arizona Jewish Historical Society ↗
  • Who funds JARC ↗
  • Who funds KIDS KICKING CANCER INC ↗
  • Who funds THE MICHIGAN JEWISH SPORTS HALL OF FAME INC ↗
  • Who funds FRIENDS OF UNITED HATZALAH INC ↗
  • Who funds JEAN AND SAMUEL FRANKEL JEWISH ACADEMY OF METROPOLITAN DETROIT ↗
  • Who funds HOLOCAUST MEMORIAL CENTER INC ↗

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.

Karp Family FoundationMI15.8× affinity5 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Karp Family Foundation · Hermelin Family Support Foundation · Shari & Alon Friendship Foundation Inc · The Sherman Family Foundation · The Irving and Ethel Palman Foundation · Madeleine H and Mandell L Berman Support Foundation · The Bruce H and Rosalie N Rosen Family Foundation · Woll-Yellin Family Foundation · Mickey Shapiro Charitable Trust · Pappas Foundation Inc · The Eisenberg Family Foundation · David Kahan Family Foundation

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 Louis C Blumberg Foundation funds: left to right is the share of its income from government, bottom to top the share from Louis C Blumberg Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%0%1%3%5%funder's share of their income ↑0%5%10%15%20%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    2report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–20%
    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 Louis C Blumberg Foundation?

    Find your warmest path to Louis C Blumberg 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 21 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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