· Private foundation
Landenberger 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 FY2019–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- $10k–50k6 grants · $133k
- $50k–250k2 grants · $205k
| Recipient | Amount |
|---|---|
| ST JAMES SCHOOL | $155,000 |
| PHILADELPHIA ANIMAL WELFARE SOCIETY | $50,020 |
| AMERICAN FRIENDS OF MAGEN DAVID ADOM | $38,344 |
| FRIENDS OF THE ISRAEL DEFENSE FORCES | $30,000 |
| CARPENTERS' COMPANY OF THE CITY AND COUNTY OF PHILADELPHIA | $20,000 |
| AMERICAN FRIENDS OF REUTH | $20,000 |
| ST THOMAS' CHURCH WHITEMARSH | $15,000 |
| JEWISH AGENCY FOR ISRAEL NORTH AMERICAN COUNCIL | $10,000 |
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.
Dollar for dollar, your grants (FY19–25) land where the poverty rate runs at 21%, against an area that typically sits at 11%. 96% of your 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 +45% since the first grant, against +9% for the ones you funded once.
13 repeat relationships — 8 still active in FY2025, 5 since wound down.
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, 100% of grant dollars renewed an existing relationship; $0 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
- IHINDEPENDENCE HISTORICAL TRUST3× · 2020–2022 · $1.0M · revenue ×12
- MOMUSEUM OF THE AMERICAN REVOLUTION6× · 2019–2024 · $335k · revenue +217%
PHILADELPHIA ANIMAL WELFARE SOCIETY5× · 2019–2025 · $140k · revenue +45%
Funded once
- PMPENN MEDICINEone grant, 2019 · $35k
- TATREATMENT ADVOCACY CENTERgraduatedone grant, 2021 · $10k · revenue +28%
PHILADELPHIA ORCHESTRA ASSOCIATIONone grant, 2019 · $6k · revenue -15%
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.
Pidc dmc administers and coordinates various development projects for the city and other not-for-profit entities.
Visit philadelphia is our name and our mission. as the region's official tourism marketing agency, we build greater philadelphia's image, drive visitation and boost the economy.
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…
To represent, promote and enhance the management interests of the entire electrical contracting industry.
The jewish women's archive documents jewish women's stories, elevates their voices, and inspires them to be agents of change.jwa is dedicated to expanding and transforming the historical narrative by restoring jewish women and gender…
To strengthen and expand the u.s.-israel relationship in ways that enhance the security of the united states and israel.
The association for public art (apa, formerly the fairmount park art association) commissions, preserves, interprets and promotes public art in philadelphia. dedicated to creating a museum without walls that informs, engages and inspires…
Providing research, education and practical information all aimed at optimizing newspapers' business operations, deepening their community engagement and enhancing the quality of their journalism.
The philadelphia school educates children for a future that is impossible to know but not impossible to shape. learn here. go anywhere.
The jewish agency binds jews across ideologies and civilizations together in a worldwide jewish family with israel at its center. it provides the global framework for aliyah, ensures global jewish safety, strengthens jewish identity and…
At philadelphia zoo, our mission is to flourish as an urban oasis, where people and animals thrive, transformational memories are made, and our passion for conservation saves wildlife (see schedule o).guided by a three-year strategic plan,…
The Television Academy is dedicated to celebrating excellence, innovation and the advancement of the telecommunications arts and sciences through recognition, education and leadership, while fostering a diverse, inclusive and accessible…
For reference, the grantee most central to the portfolio’s shape is Museum of the American Revolution and the most unlike its peers is Friends of the Israel Defense Forces. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
13 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. 13 of the 21 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 INDEPENDENCE HISTORICAL TRUST ↗
- Who funds MUSEUM OF THE AMERICAN REVOLUTION ↗
- Who funds PHILADELPHIA ANIMAL WELFARE SOCIETY ↗
- Who funds CARPENTERS' COMPANY OF THE CITY AND COUNTY OF PHILADELPHIA ↗
- Who funds AMERICAN FRIENDS OF MAGEN DAVID ADOM ↗
- Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
- Who funds JEWISH AGENCY FOR ISRAEL - NORTH AMERICAN COUNCIL ↗
- Who funds TREATMENT ADVOCACY CENTER ↗
- Who funds PHILADELPHIA ORCHESTRA ASSOCIATION ↗
- Who funds THE MORRIS ANIMAL REFUGE ↗
- Who funds THE ROCK SCHOOL FOR DANCE EDUCATION ↗
- Who funds THE JOHN BARTRAM ASSOCIATION ↗
- Who funds SYMPHONY IN C ↗
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 William Penn Foundation · Rittenhouse Foundation · The Philadelphia Cultural Fund Inc · Connelly Foundation · The Philadelphia Foundation · Vanguard Charitable Endowment Program · The Bank of America Charitable Foundation Inc · Paypal Charitable Giving Fund · National Philanthropic Trust · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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 organization Landenberger 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 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 Landenberger Family Foundation?
Find your warmest path to Landenberger Family 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.