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· Private foundation
Frederic J & Dorothea Oppenheimer
This foundation accepts unsolicited grant applications.
$35k
Granted FY2024
1
Grants
1
Communities
$35k
Largest
01What you fund
0166% classified
What you funded, over time
Every grant clustered by its grantee’s IRS cause code (NTEE), by year — across FY2017–2024.
Recreation & Sports$65kHuman Services$15kArts & Culture$15kEnvironment$15kHealth$5kOther$60k
02FY2024 · 1 grant
Where the money goes
Your grants by size, and where they go.
$34,750
Median grant
1
States reached
$0
Total assets
Largest grants
- Brackenridge Park Conservancy$34,750
02The need
03
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.
show:
Your human-services grants (FY20–21, $15k) land where the poverty rate runs at 16% — the area typically sits at 11%. 100% of those dollars reach neighborhoods with above-average need. Most of your grants land in higher-need ZIPs.
grant to an above-average-need area below average· circle size = grant amount
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.
03Your field
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.
1
San Antonio Regional Hospital
Our mission is to improve the health and well-being of the people we serve.
Health
2
Tennis Officials of San Antonio Association
Recreation & Sports
3
San Antonio Report
Publishing a local online news source. We believe a well informed and connected community is essential to making San Antonio a better place to live, work and play.
Arts & Culture
4
Arboretum San Antonio
Arboretum San Antonio (ASA), a nonprofit 501(c)(3) organization founded in 2021, is building a world-class arboretum on the former Republic Golf Course in the heart of San Antonios historic Southside.
Environment
5
San Antonio Medical Foundation
The mission of the san antonio medical foundation is to improve health care, advance biomedical science, and provide leadership & active stewardship of our land and other assets.
Health
6
San Antonio Area Foundation
The san antonio area foundation serves as your most trusted and impactful philantrhopic partner. the area foundation strives to close opportunity gaps for those who need it most.
Philanthropy
7
San Antonio Botanical Garden Society Inc
Enriching lives through plants and nature
Environment
8
Humane Society of San Antonio
To protect and improve the lives of dogs and cats.
Animals
9
Guadalupe River Park Conservancy
Guadalupe River Park Conservancy promotes the development and active use of the Guadalupe River Park and Gardens through education, advocacy, and stewardship.
Environment
10
San Antonio Conservation Society
To preserve and to encourage the preservation of historic buildings, objects, -see schedule o
—
11
San Antonio River Foundation
Our mission is to preserve, enhance, and transform the san antonio river basin as a vibrant cultural, educational, ecological, and recreational experience.
Environment
12
Hermann Park Conservancy
The Conservancy enhances and maintains Hermann Park (one of Houston's most historic and popular green spaces), manages impressive renovations of the Park, and is responsible for extensive reforestation efforts and maintenance initiatives…
Environment
For reference, the grantee most central to the portfolio’s shape is Hemisfair Conservancy and the most unlike its peers is San Antonio Philharmonic. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network
9 grantees, every filing reconciled, 2017–2024.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue.
0
Load-bearing (≥25% of a budget)
5
Early backer (in before they grew)
9/9
Grantees still filing
7/9
Grew since you first funded
Where your money sits — by cause, then by grantee
Recreation & Sports$64,750Other$60,000Human Services$15,000Arts & Culture$15,000Environment$15,000Health$5,000
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.
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.
San Antonio Area FoundationTX17.9× affinity6 shared granteesties to 8 of 8Hover any node to trace its alignments.Compare side by side →
Open a dossier: San Antonio Area Foundation · Elizabeth Huth Coates Charitable · Faye L & William L Cowden Charitable · American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc · Fidelity Investments Charitable Gift Fund · American Online Giving Foundation Inc · Donor Advised Charitable Giving 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.
Government reliance of your grantees
Every dot is one organisation Frederic J & Dorothea Oppenheimer 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.
2024
’20’21’22’23’24
no gov moneyreceives it· size = income
0get no government money at all
0rely on government for over half their income
⤢ axis zoomed · 0–40%
typical government reliance, FY20–24
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.
04Through Plinth
Through Plinth
Your grantmaking, live and operational
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: AugustHeart.
Agentic due diligence · confidence × risk
Financial management
low risk
~21 months of operating runway; revenue grew over 7 filed years.
Track record & reputation
low risk
7 years of Form 990 filings, still active; revenue up 6.4× since.
Legal standing
low risk
US 501(c)(3); EIN 452351369 on file with current IRS Form 990 filings.
Governance
Live in Plinth
Board composition & governance documents — verified live in Plinth from the applicant.
Compliance & sanctions
Live in Plinth
OFAC / UN sanctions screening — run live in Plinth at assessment.
Program capacity
Live in Plinth
Staffing, M&E and activity alignment — assessed live in Plinth from submitted proposals.
Live · Plinth’s real DD engine
Run the actual assessment on AugustHeart, 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
- On trackFinancial stability— Roughly 21 months of cash on hand.
- On trackSustained operations— Filing through 2024; revenue grew over the period.
- On trackReliance on your funding— Your grants peaked at 1% of their budget — diversified.
- Awaiting reportEvidence of delivery— Plinth collects the grantee's own monitoring reports post-award.
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.
Agentic due diligenceMonitoring dashboardsCustom board reportsEligibility routing
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
How do I get to Frederic J & Dorothea Oppenheimer?
Find your warmest path to Frederic J & Dorothea Oppenheimer 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.
More from the funding graph
The regranting layer
51% of grant dollars pass through an intermediary
The DAF merry-go-round
$9.7B circulates between donor-advised funds
Strange bedfellows
the named clusters of US funding
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home
State money flows
the interactive map of money crossing state lines