· Private foundation
Dettmer Family 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 FY2020–2025.
Where the money goes
Your grants by size, and where they go.
| Recipient | Amount |
|---|---|
| JAMES MADISON INSTITUTE | $3,500 |
| TURNING POINT USA | $3,000 |
| STATE POLICY NETWORK | $2,500 |
| JUDICIAL WATCH | $2,500 |
| PARKINSON'S FOUNDATION | $1,000 |
| BATH & TENNIS PRESERVATION FOUNDATION | $1,000 |
| MEMORIAL SLOAN-KETTERING CANCER CENTER | $1,000 |
| CO2 COALITION | $1,000 |
| PLANETARY SOCIETY | $1,000 |
| CFACT | $1,000 |
| TUNNEL TO TOWERS | $1,000 |
| NATIONAL SPACE SOCIETY | $700 |
| NATIONAL ASSOCIATION OF SCHOLARS | $650 |
| CLAREMONT INSTITUTE | $500 |
| MD ANDERSON CANCER CENTER | $500 |
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 (FY21–23, $3k) land where the poverty rate runs at 12%, against an area that typically sits at 10%. 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 +32% since the first grant, against +14% for the ones you funded once.
30 repeat relationships — 21 still active in FY2025, 9 since wound down; 3 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, 95% of grant dollars renewed an existing relationship; $1k 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
- WCWellesley College3× · 2020–2022 · $40k · revenue +42%
JUDICIAL WATCH INC5× · 2020–2025 · $15k · revenue +16%- SPSTATE POLICY NETWORK6× · 2020–2025 · $13k · revenue +71%
Funded once
- NANAVAL ACADEMY FUNDone grant, 2022 · $3k
- UNUS NAVAL ACADEMY ALUMNI ASSOCIATIONone grant, 2020 · $3k
- CFCLUB FOR GROWTHone grant, 2021 · $3k · revenue -42%
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.
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…
Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…
American foreign service association (afsa) is both the principal advocate for the long-term institutional wellbeing of the professional career foreign service and responsible for safeguarding the interest of afsa members. (continued on…
Undergraduate, graduate, and professional education and research across a broad array of academic domains.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
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…
Aacsb international provides quality assurance of business school programs, the latest in business education intelligence, thought leadership, and learning and development services.
The american political science association ("apsa") supports excellence in scholarship and teaching and informed discourse about politics, policy, and civic participation. the association promotes a lively, diverse community of scholars,…
The fsmb serves as the voice for state medical boards, supporting them through education, assessment, research and advocacy while providing services and initiatives that promote patient safety, quality health care and regulatory best…
The peterson institute for international economics (piie) is an independent nonprofit, nonpartisan research organization dedicated to strengthening prosperity and human welfare in the global economy through expert analysis and practical…
The american astronomical society (aas), established in 1899, is the major organization of professional astronomers in north america. the basic objective of the aas is to promote the advancement of astronomy and closely related branches of…
For reference, the grantee most central to the portfolio’s shape is The Heritage Foundation and the most unlike its peers is National Space Society. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 37 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 4% of your grantees by number, and just 6% of your money.
The orgs you fund almost never close — 4% 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.
26 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. 26 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 Wellesley College ↗
- Who funds JUDICIAL WATCH INC ↗
- Who funds STATE POLICY NETWORK ↗
- Who funds WHITEHEAD INSTITUTE FOR BIOMEDICAL RESEARCH ↗
- Who funds HARVARD BUSINESS SCHOOL ASSOCIATION OF BOSTON ↗
- Who funds Massachusetts Institute of Technology ↗
- Who funds TURNING POINT USA INC ↗
- Who funds THE HERITAGE FOUNDATION ↗
- Who funds THE JAMES MADISON INSTITUTE FOR PUBLIC POLICY STUDIES INC ↗
- Who funds NATIONAL SPACE SOCIETY ↗
- Who funds THE PLANETARY SOCIETY ↗
- Who funds The Denver Children's Foundation ↗
- Who funds CLUB FOR GROWTH ↗
- Who funds CO2 COALITION ↗
- Who funds Delta Tau Delta Educational Foundation Inc ↗
- Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
- Who funds THE TAU BETA PI ASSOCIATION INC ↗
- Who funds WORLD AFFAIRS COUNCIL OF PALM BEACH ↗
- Who funds PARKINSON'S FOUNDATION INC ↗
- Who funds Palm Beach Civic Association Inc ↗
- Who funds Town of Palm Beach United Way Inc ↗
- Who funds AMERICAN FEDERATION OF POLICE AND CONCERNED CITIZENS INC ↗
- Who funds The Palm Beach Police and Fire Foundation Inc ↗
- Who funds FLORIDA SHERIFFS ASSOCIATION 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: Shell USA Company Foundation · Verizon Foundation · The Blackbaud Giving Fund · American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · Natl Christian Charitable Fdn Inc · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund
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 Dettmer Family 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.
- Massachusetts Institute of Technology — 35% of income from government
- Whitehead Institute for Biomedical Research — 7% of income from government
- Florida Sheriffs Association Inc — 4% of income from government
- Wellesley College — 1% of income from government
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.