· 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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k5 grants · $14k
- $10k–50k4 grants · $108k
| Recipient | Amount |
|---|---|
| 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 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your 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. Your grants skew toward lower-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
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
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 74% of grant dollars renewed an existing relationship; $31k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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
- FCFRIENDSHIP CIRCLE4× · 2017–2022 · $216k
- TDTHE DETROIT JEWISH NEWS FOUNDATION INC7× · 2018–2025 · $175k · revenue +487%
- IGIndividual grant recipient4× · 2017–2022 · $128k
Funded once
- HDHILLEL DAY SCHOOL OF METRO DETROITone grant, 2019 · $75k · revenue +17%
- CSCONGREGATION SHAAREY ZEDEKone grant, 2022 · $25k
- VOVIOLINS OF HOPE FOUNDATIONone grant, 2018 · $25k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
Inspire students to be active in jewish life.
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.
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…
Jewish historical society of michigan shares and celebrates the experiences and contributions of the jewish people, communities and institutions of michigan.
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.
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…
We nurture a sense of community and enrich the lives of older adults, while embracing jewish values and celebrating life.
To further jewish historical education among youths
We nurture a sense of community and enrich the lives of older adults, while embracing jewish values and celebrating life.
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…
To enrich the lives of jewish undergraduate students so that they may enrich the jewish people and the world.
For reference, the grantee most central to the portfolio’s shape is The Detroit Jewish News Foundation Inc and 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.
11 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, 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; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your 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 ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
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
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Louis C Blumberg Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.
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.