· Private foundation
The John P Calamos 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 $10k6 grants · $15k
- $10k–50k2 grants · $35k
- $50k–250k4 grants · $300k
- $250k+1 grant · $650k
| Recipient | Amount |
|---|---|
| NATIONAL HELLENIC MUSEUM | $650,000 |
| ASSUMPTION GREEK ORTHODOX CHURCH | $100,000 |
| ST NICHOLAS GREEK ORTHODOX CHURCH | $100,000 |
| WASHINGTON OXI DAY FOUNDATION | $50,000 |
| HELLENIC INITIATIVE INC | $50,000 |
| LOUKOUMI MAKE A DIFFERENCE FOUNDATION | $25,000 |
| GIFT OF ADOPTION | $10,000 |
| ST IAKOVOS RETREAT CENTER | $5,000 |
| ORDER OF ST ANDREW | $4,000 |
| HELLENIC AMERICAN ACADEMY | $2,500 |
| HILLSDALE COLLEGE | $2,000 |
| TURNING POINT USA | $1,000 |
| HERITAGE FOUNDATION | $100 |
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 (FY22–22, $1k) land where the poverty rate runs at 7%, 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.
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.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 98% of The John P Calamos Foundation’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another. Read by recipient address, 94% of the giving stays in IL; read by stated purpose it is 2% — less of the work is directed home than the recipients' locations suggest.
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.
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.
11 repeat relationships — 7 still active in FY2025, 4 since wound down; 5 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, 96% of grant dollars renewed an existing relationship; $39k 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
- IIIllinois Institute of Technology6× · 2018–2024 · $13M · revenue +28%
- WOWashington Oxi Day Foundation6× · 2020–2025 · $300k · revenue +20%
- HIHELLENIC INITIATIVE INC4× · 2021–2025 · $150k · revenue +1%
Funded once
- GCGOFUNDME CHARITYone grant, 2020 · $200k
- CICROSSROAD INSTITUTE INCone grant, 2022 · $80k · revenue -73%
- YCYORKVILLE CHRISTIAN HIGH SCHOOLgraduatedone grant, 2024 · $50k · revenue +30%
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.
To add distinctive and sustainable value to our students as well as greece, american education, hellenic heritage, and the global community through transformative teaching, scholarship, and service.
Illinois college is a co-educational institution of higher education learning providing a four-year educational program leading to the baccalaureate degree. illinois college is a community committed to the highest standards of scholarship…
Undergraduate, graduate, and professional education and research across a broad array of academic domains.
The american enterprise institute is a community of scholars and supporters committed to expanding liberty, increasing individual opportunity, and strengthening free enterprise. aei pursues these ideals through independent thinking and the…
Provide post-secondary education leading to a baccalaureate degree. Program service expenditures are made in conjunction with the operation of a liberal arts college spread over 107 acres with approximately 63 educational and support…
Saint xavier university, a catholic institution inspired by the heritage of the sisters of mercy, educates persons to search for truth, think critically, communicate effectively and serve wisely and compassionately in support of human…
Eastern university is a diverse, christ-centered community preparing graduates to impact the world through faith, reason, and justice.
George fox university, a christ centered community, prepares students spiritually, academically, and professionally to think with clarity, act with integrity, and serve with passion.
The primary mission of furman as a liberal arts institution is to provide a distinctive education in fine arts, humanities, social sciences, mathematics and the sciences, as well as selected professional disciplines.
Manhattan university is an independent catholic instituion of higher learning that embraces qualified men and women of all faiths, cultures, and traditions. the mission of manhattan university is to provide a contemporary, person-centered…
American press institute acts as a scout on the frontier of technology and audience behavior to identify where change is occurring and helps news organizations learn how to implement and scale that change successfully so they have a…
The mission of the university of chicago has been to sustain at the highest level of excellence, the communication of knowledge, the creation of knowledge and the fostering of a dynamic community of scholars and students.
For reference, the grantee most central to the portfolio’s shape is The Heritage Foundation and the most unlike its peers is Yorkville Christian High School. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 28 years old; the field is 20. You back the established end — and your money leans older still.
The field is 18% startups (under 5 years old) — 7% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 12% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
25 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. 25 of the 42 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 Illinois Institute of Technology ↗
- Who funds National Hellenic Museum ↗
- Who funds Washington Oxi Day Foundation ↗
- Who funds HELLENIC INITIATIVE INC ↗
- Who funds Ecumenical Patriarch Bartholomew Foundation Inc ↗
- Who funds CROSSROAD INSTITUTE INC ↗
- Who funds YORKVILLE CHRISTIAN HIGH SCHOOL ↗
- Who funds Naperville Education Foundation ↗
- Who funds THE LOUKOUMI MAKE A DIFFERENCE FOUNDATION INC ↗
- Who funds INDIAN PRAIRIE EDUCATIONAL FOUNDATION ↗
- Who funds CAREER & NETWORKING CENTER ↗
- Who funds Distinguished Flying Cross Society ↗
- Who funds NAPERVILLE COMMUNITY TELEVISION ↗
- Who funds AURORA AREA INTERFAITH FOOD PANTRY ↗
- Who funds JULIE AND MICHAEL TRACY FAMILY FOUNDATION ↗
- Who funds UNITING VOICES ↗
- Who funds HIPPOCRATIC CANCER RESEARCH FOUNDATION INC ↗
- Who funds KIDS GOLF FOUNDATION OF ILLINOIS ↗
- Who funds NAPERVILLE AREA HUMANE SOCIETY ↗
- Who funds HILLSDALE COLLEGE ↗
- Who funds EAA AVIATION FOUNDATION INC ↗
- Who funds TURNING POINT USA INC ↗
- Who funds TURNING POINTE AUTISM FOUNDATION ↗
- Who funds CHAPLAINCY CARE 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 loosely connected circle, clustered around a few shared anchors.
Open a dossier: Buhler Kapsalis Family Foundation · Metropoulos Family Foundation · The George and Judy Marcus Family Foundation II · The Dupage Community Foundation · Gianaras Foundation · Neil & Ginny Gerald Family Foundation · Hellenic Foundation · Libra Global Philanthropies Foundation Inc · The James & Theodore Pedas Family Foundation Inc · Naperville Rotary Charities Inc · Community Foundation of the Fox River Valley · Arthur J Gallagher 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 The John P Calamos 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 The John P Calamos Foundation?
Find your warmest path to The John P Calamos 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.