· Private foundation
Greenberg Foundation
Its FY2024 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 FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k20 grants · $57k
- $10k–50k3 grants · $40k
| Recipient | Amount |
|---|---|
| MISCELLANEOUS | $17,856 |
| ALZHEIMERS ASSOCIATION | $12,363 |
| CRITTENTON CENTER | $10,000 |
| CONGREGATION BETH SHALOM | $6,750 |
| CAMP HIGH HOPES | $6,666 |
| FOOD BANK OF SIOUXLAND | $6,300 |
| WELLNESS IN ACTION | $5,000 |
| JEWISH FEDERATION | $5,000 |
| PLANNED PARENTHOOD | $5,000 |
| FIRST TEE SIOUXLAND | $4,400 |
| GIRLS INC | $3,500 |
| WARMING SHELTER | $3,333 |
| SIOUXLAND SPORTS ACADEMY | $2,750 |
| MIRACLE LEAGUE OF SIOUX CITY | $1,500 |
| FOOD BANK OF IOWA | $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 (FY17–24, $28k) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-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.
Which US states your grants reach
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +28% since the first grant, against -9% for the ones you funded once.
27 repeat relationships — 16 still active in FY2024, 11 since wound down; 7 grantees were first funded in FY2024 (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 FY2024, 73% of grant dollars renewed an existing relationship; $27k 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
- GIGIRLS INCORPORATED OF SIOUX CITY7× · 2017–2024 · $34k · revenue +48%
- FBFOOD BANK OF SIOUXLAND INC7× · 2017–2024 · $31k · revenue +70%
- CHCAMP HIGH HOPES7× · 2017–2024 · $18k · revenue +111%
Funded once
- USUPH ST LUKES HEALTH FOUNDATIONone grant, 2020 · $10k
- IGIndividual grant recipientone grant, 2019 · $7k
- IGIndividual grant recipientone grant, 2020 · $7k
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.
Improve the quality of the siouxland area
Obtain, warehouse, and distribute food products to client agencies to help alleviate hunger in southern iowa communities.
The siouxland community foundation is a trusted organization that connects people who care with causes that matter by providing a means to receive gifts and distribute grants in response to community needs.
To eliminate hunger in south dakota.
Provide an interactive learning environment for children to foster imagination and creativity while inspiring life-long learning
Common good iowa engages iowans to create and advocate for research-based public policy that makes life better and more equitable for all who make iowa home.
Establish relationships between siouxland youth and mature, responsible screened adult volunteers.
The Foodbank's mission is to provide food, and develop awareness of and creative solutions for food insecurity. Annually, the Foodbank distributes approximately 9.5 million pounds of food to 130 food pantries, soup kitchens, children's…
To provide food, clothing, toys and other miscellaneous items to families in need.
To assist seniors in maintaining optimal health, independence, and socialization, deferring admission to long term care facilities and improving their quality of life.
To provide advocacy and services for disadvantaged persons and bring about institutional change for the benefit of the people we serve and the community at large. (see schedule o).to achieve this mission, scicap operates programs to…
To enrich the quality of life and support independence and vitality for our members. this is done by meeting the social, recreational and educational needs of members, in an environment that is fun, safe, inclusive and courteous for all
For reference, the grantee most central to the portfolio’s shape is Food Bank of Siouxland Inc and the most unlike its peers is Journal Goodfellow Charities Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
18 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. 18 of the 44 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 GIRLS INCORPORATED OF SIOUX CITY ↗
- Who funds FOOD BANK OF SIOUXLAND INC ↗
- Who funds CAMP HIGH HOPES ↗
- Who funds THE CRITTENTON CENTER ↗
- Who funds LAMB ARTS LTD ↗
- Who funds WORLD CENTRAL KITCHEN INC ↗
- Who funds BRIAR CLIFF UNIVERSITY ↗
- Who funds SIOUXLAND YOUTH GOLF ASSOCIATION ↗
- Who funds JOURNAL GOODFELLOW CHARITIES INC ↗
- Who funds MORNINGSIDE UNIVERSITY ↗
- Who funds THE MIRACLE LEAGUE OF SIOUX CITY ↗
- Who funds THE WARMING SHELTER INC ↗
- Who funds HEALTH INC HOSPICE ↗
- Who funds FOOD BANK OF IOWA ↗
- Who funds SIOUXLAND SPORTS ACADEMY ↗
- Who funds FOOD BANK FOR THE HEARTLAND ↗
- Who funds SIOUX CITY PUBLIC SCHOOL FOUNDATION ↗
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: Missouri River Historical Development Inc · The Chesterman Family Foundation · Baird Foundation Inc · Berenstein Family Foundation · Peterson Family Foundation · The Roth & Letch Family Charitable Foundation · Siouxland Community Foundation · Waitt Foundation · Michael & Marjory Bennett Foundation · Ronald B and Joan B Krage Foundation · Helios Foundation · Kol Tov 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 Greenberg 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 Greenberg Foundation?
Find your warmest path to Greenberg 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.