· Private foundation
Katharine B Sutphin Foundation Inc
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 FY2020–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k11 grants · $41k
- $10k–50k7 grants · $178k
- $50k–250k6 grants · $500k
| Recipient | Amount |
|---|---|
| HARRISON CENTER | $100,000 |
| BIG CAR MEDIA | $100,000 |
| ESKENAZI HEALTH FOUNDATION | $100,000 |
| HARRISON CENTER | $75,000 |
| INDIANAPOLIS ART CENTER | $75,000 |
| INTEND INDIANA | $50,000 |
| PEACE LEARNING CENTER | $35,000 |
| HERRON HIGH SCHOOL | $30,000 |
| HARRISON CENTER | $27,279 |
| HARRISON CENTER | $25,450 |
| THE OAKS ACADEMY | $25,000 |
| ARTMIX | $25,000 |
| INDY HUMANE SOCIETY | $10,000 |
| FRIENDS OF BELMONT BEACH | $5,000 |
| HERRON HIGH SCHOOL | $5,000 |
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 (FY23–25, $6k) land where the poverty rate runs at 16%, 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.
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 +31% since the first grant, against -2% for the ones you funded once.
18 repeat relationships — 12 still active in FY2025, 6 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, 92% of grant dollars renewed an existing relationship; $56k 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
- IAINDIANAPOLIS ART CENTER INC3× · 2022–2025 · $300k · revenue +74%
- HCHarrison Center for the Arts Inc2× · 2021–2022 · $242k · revenue +59%
- HHHERRON HIGH SCHOOL INC5× · 2021–2025 · $153k · revenue +95%
Funded once
- RPREDEEMER PRESBYTERIAN MISSIONone grant, 2023 · $5k
- TGTHRIVE GLOBAL CONSULTING NFPgraduatedone grant, 2021 · $3k · revenue +60%
- IHIRVINGTON HISTORICAL SOCIETY INCone grant, 2021 · $1k · revenue -91%
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.
Enroll indy helps families choose schools that meet their children's needs by providing a one-stop enrollment process, school information that is relevant and easy to understand, and data to inform school improvement in indianapolis,…
Educate, Inspire, Connect and Mobilize Community Leaders to serve and strengthen greater Indianapolis.
The mission of the international school of indiana is to provide our students with a world-class education that prepares them to be responsible citizens and effective leaders in a rapidly globalizing and interdependent world.
The Independent Colleges of Indiana (ICI) advances and strengthens the competitive standing of its 29 member independent, nonprofit, regionally accredited, degree granting colleges and universities. ICI works to ensure opportunity, access,…
Indiana tech is a private, independent, and non-denominational university. students are prepared for active participation in the complex, global society of the 21st century and are motivated toward a life of significance and worth. about…
To mobilize people, ideas, and investments to make this a community where all individuals have equitable opportunity to reach their full potential - no matter place, race or identity.
The international violin competition of indianapolis (ivci) recognizes, rewards and promotes the world's finest young classical violinists and encourages understanding, appreciation and support of the violin repertoire by a large and…
Thrival academy indy is a humanities-focused high school which exposes students to diverse global perspectives through experiential learning and identity exploration in order to incubate educated global citizens and passionate community…
The University of Indianapolis champions lifelong learning through relevant and innovative education that fosters experiential learning, diverse perspectives, service for impact, and a global mindset.
Central indiana corporate partnership (cicp) is an alliance of indiana's business and research university leaders coming together to foster long-term prosperity for the region. cicp's mission is to transform the economy of indiana in order…
KIPP Indy is a network of tuition-free, open-enrollment, college preparatory, public charter schools. KIPP Indy's mission is to create a network of schools that provides educationally underserved children with a rigorous education that…
The school's objective is to provide an excellent, christ-centered education, equipping students for a life of scholarship, leadership, and service.
For reference, the grantee most central to the portfolio’s shape is Peace Learning Center Inc and the most unlike its peers is Friends of Belmont Beach Inc. 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 23 years old; the field is 20. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 10% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 13% 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.
20 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. 20 of the 30 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 INDIANAPOLIS ART CENTER INC ↗
- Who funds Harrison Center for the Arts Inc ↗
- Who funds INTEND INDIANA INC ↗
- Who funds BIG CAR MEDIA INC ↗
- Who funds HERRON HIGH SCHOOL INC ↗
- Who funds Eskenazi Health Foundation Inc ↗
- Who funds INDIANAPOLIS FILM PROJECT INC ↗
- Who funds The Oaks Academy Inc ↗
- Who funds ARTMIX INC ↗
- Who funds PEACE LEARNING CENTER INC ↗
- Who funds COVENANT COLLEGE ↗
- Who funds HEART CHANGE MINISTRIES INC ↗
- Who funds Friends of Belmont Beach Inc ↗
- Who funds Indiana University Foundation ↗
- Who funds THRIVE GLOBAL CONSULTING NFP ↗
- Who funds INDIANAPOLIS THEOLOGICAL SEMINARY ↗
- Who funds IRVINGTON HISTORICAL SOCIETY INC ↗
- Who funds INSTITUTE FOR QUALITY EDUCATION INC ↗
- Who funds CIRCLE CITY FELLOWS INC ↗
- Who funds THE FIELD SCHOOL ↗
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: Lilly Endowment Inc · Central Indiana Community Foundation Inc · The Indianapolis Foundation Inc · Nicholas H Noyes Jr Memorial Foundation · Allen Whitehill Clowes Charitable Foundation Inc · Richard M Fairbanks Foundation Inc · Eugene & Marilyn Glick Foundation · Ayres Foundation Inc · The Palmer Family Foundation · Arts Council of Indianapolis Inc · Indiana Humanities Council Inc · Christel DeHaan Family Foundation Inc
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 Katharine B Sutphin Foundation Inc 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 Katharine B Sutphin Foundation Inc?
Find your warmest path to Katharine B Sutphin Foundation Inc 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.