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· Private foundation
This foundation does not accept unsolicited requests — it funds preselected organizations.
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 97% of OBERWEIS FOUNDATION’s grantee dollars go to organizations outside the IRS cause taxonomy (common for large international and research funders), so a chart would be mostly “unclassified” and misrepresent the portfolio.
Your grants by size, and where they go.
By grant size · FY2024
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY20–20, $1k) land where the poverty rate runs at 8% — the area typically sits at 10%. 0% of those dollars reach neighborhoods with above-average need. 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 line in 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, United Way ALICE — shown as context about the area, never attributed to your giving.
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
5 repeat relationships — 4 still active in FY2024, 1 since wound down; 11 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Still filing today
New vs renewed · share of each year
In FY2024, 50% of grant dollars renewed an existing relationship; $38k 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.
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.
Americas Physician Groups (APG) is a national association representing more than 335 physician groups with approximately 170,000 physicians providing care to nearly 90 million patients. APGs tagline, Taking Responsibility for Americas…
Preserve the integrity of competition, inspire true sport, protect the rights of u.s. athletes
American Golf Foundation is dedicated to the enhancement and enrichment of communities by promoting the enjoyment of the game of golf and its ideals through charity, education and community service.
The GI Research Foundation works to treat, prevent, and cure digestive diseases. In collaboration with the physicians and scientists at the University of Chicago Digestive Diseases Center, we fund innovative clinical and laboratory…
The chicago district golf association is the regional governing body for amateur golf in illinois and is primarily engaged in providing various services to golf clubs including usga rating and measuring services, and to individual golfers…
To serve individuals with disabilities with freedom & joy through their inclusion in the game of golf, including but not limited to access, instruction, and competition at all levels providing a competitive pathway.
The One Aim Illinois Gun Violence Prevention Coalition stands firm in our commitment to advocating for measures that put survivors first, protect vulnerable communities, and create a future free from the threat of gun violence.
The team at kipp chicago schools is guided by a simple, yet powerful mission: to create a network of excellent schools in chicago that teach our students the character and academic skills necessary to succeed in college and beyond, and to…
Honest Game Foundations mission is to level the playing filed so that every student has a fair and equitable opportunity to attend college. We do this by partnering with corporations and donors to support schools, students, and families…
American gas association (the association) is an advocate for natural gas utility companies and their customers. the association helps natural gas utilities achieve operational excellence in the safe, reliable and efficient delivery of…
Our mission is to connect people to quality giving and volunteer opportunities worldwide. universalgiving is a 501(c)3 nonprofit organization, whose vision is to create a world where giving and volunteering are a natural part of everyday…
To educate and teach the public at large about consensus building, unity, and shared beliefs. The Organization promotes public interest and awareness of shared goals and agreement among individuals in America by organizing, arranging, and…
For reference, the grantee most central to the portfolio’s shape is Turning Point Usa Inc and the most unlike its peers is American Diabetes Association. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue.
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
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
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: The Bank of America Charitable Foundation Inc · Amazonsmile 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.
Every dot is one organisation OBERWEIS 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, a single department, or state — 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. 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.
Through Plinth
This dossier was generated cold from public filings. In Plinth it’s a working system — every applicant assessed and every grant monitored. Here’s a taste, run on one of your grantees: Kids Golf Foundation of Illinois.
Agentic due diligence · confidence × risk
~3 months of operating runway; revenue grew over 8 filed years.
8 years of Form 990 filings, still active; revenue up 5.3× since.
US 501(c)(3); EIN 364226416 on file with current IRS Form 990 filings.
Board composition & governance documents — verified live in Plinth from the applicant.
OFAC / UN sanctions screening — run live in Plinth at assessment.
Staffing, M&E and activity alignment — assessed live in Plinth from submitted proposals.
Live · Plinth’s real DD engine
Run the actual assessment on Kids Golf Foundation of Illinois, cold from public data.
Generated live from public IRS filings + open web sources by Plinth’s agentic engine. Shown as an illustration of the product, not a formal assessment.
Post-award monitoring · continuous checks
What you see here is static and public. In Plinth it’s operational — the full six-pillar framework on every applicant (with their own documents + live registry and sanctions checks), monitoring dashboards on every award, custom board reports, and eligibility routing for intake.
Preview generated from this grantee’s public IRS filings and independent reporting. Pillars marked “live in Plinth” require the applicant’s submitted documents. Shown as illustration, not a formal assessment.
Warm introductions · Powered by PlinthPro
Find your warmest path to Oberweis Foundation through people who sit on both boards. Search for your organization and Plinth traces the introduction across shared trustees and officers.
Every link is a documented governance overlap in public IRS 990 filings — not a personal network — and each hop carries its own confidence tier. Low-confidence or distant paths are held back rather than guessed.