· Private foundation
Seibert Family Foundation
Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2024
- Under $10k11 grants · $24k
- $10k–50k2 grants · $30k
- $50k–250k1 grant · $60k
| Recipient | Amount |
|---|---|
| AGNES IRWIN SCHOOL | $60,000 |
| UNIVERSITY OF MIAMI | $20,000 |
| VILLANOVA UNIVERSITY CHARLES WIGDER SCHOOL OF LAW | $10,000 |
| DUKE UNIVERSITY | $9,000 |
| DUKE UNIVERSITY | $2,500 |
| RAMAPO FOR CHILDREN | $2,000 |
| ALEX'S LEMONADE STAND FOUNDATION | $2,000 |
| RIVERBEND ENVIRONMENTAL EDUCATION CENTER | $2,000 |
| BREAST CANCER RESEARCH FOUNDATION | $1,000 |
| THE WETHERILL SCHOOL | $1,000 |
| WORLD WILDLIFE FUND | $1,000 |
| GLADWYNE FIRE COMPANY | $1,000 |
| PHILADELPHIA BALLET | $1,000 |
| BRADY CENTER TO PREVENT GUN VIOLENCE | $1,000 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Dollar for dollar, its grants (FY17–24) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 34% of its dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.
How this is measured
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
19 repeat relationships: 11 still active in FY2024, 8 since wound down; 2 grantees were first funded in FY2024 (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 FY2024, 98% of grant dollars renewed an existing relationship; $2k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- TATHE AGNES IRWIN SCHOOL6× · 2019–2024 · $138k · revenue +57%
DUKE UNIVERSITY8× · 2017–2024 · $132k · revenue +51%- UOUniversity of Miami4× · 2021–2024 · $86k · revenue +48%
Funded once
- PTPlease Touch Museumgraduatedone grant, 2017 · $1k · revenue +78%
- ATARDEN THEATRE COMPANYgraduatedone grant, 2020 · $1k · revenue +31%
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."
Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…
As a diverse community of learners, we cultivate integrity, curiosity, connection and resilience.
The mission is "to understand the natural world and inspire everyone to care for it." the academy implements its mission through understanding the diversity of life; developing and applying science to protect the environment; and informing…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
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…
The university's goal in the coming decade is to advance learning through the integration of teaching, research and service to others. the core of this goal is to prepare graduates to engage with the world and lead lives of meaning. to do…
Dickinson college provides a useful, innovative and interdisciplinary education in the liberal arts and sciences to prepare students to lead rich and fulfilling lives of engaged global citizenship
The central mission of the university of southern california is the development of human beings and society as a whole through the cultivation and enrichment of the human mind and spirit. the principal means by which our mission is…
We educate the next generation of leaders to improve the health of our society.
How this is measured
20 grantees tracked through their own filings, 2017–2025.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 20 of the 23 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds THE AGNES IRWIN SCHOOL ↗
- Who funds DUKE UNIVERSITY ↗
- Who funds University of Miami ↗
- Who funds VILLANOVA UNIVERSITY ↗
- Who funds GEORGETOWN UNIVERSITY ↗
- Who funds RAMAPO FOR CHILDREN INC ↗
- Who funds ALEXS LEMONADE STAND FOUNDATION ↗
- Who funds BLOOD CANCER UNITED INC ↗
- Who funds GLADWYNE FIRE COMPANY ↗
- Who funds THE WETHERILL SCHOOL ↗
- Who funds RIVERBEND ENVIRONMENTAL EDUCATION CENTER ↗
- Who funds NO MORE KIDS WITH CANCER ↗
- Who funds BRADY CENTER TO PREVENT GUN VIOLENCE ↗
- Who funds SIERRA CLUB FOUNDATION ↗
- Who funds WORLD WILDLIFE FUND INC ↗
- Who funds BOYS & GIRLS CLUB OF ATLANTIC CITY INC ↗
- Who funds THE PENNSYLVANIA BALLET ASSOCIATION ↗
- Who funds THE BREAST CANCER RESEARCH FOUNDATION INC ↗
- Who funds Please Touch Museum ↗
- Who funds ARDEN THEATRE COMPANY ↗
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: Hamilton Family Foundation · Connelly Foundation · United Way of Greater Philadelphia and Southern New Jersey · The Blackbaud Giving Fund · Vanguard Charitable Endowment Program · The Pfizer Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund
How this is measured
How much its grantees rely on government
Each dot is one organization Seibert Family Foundation funds: left to right is the share of its income from government, bottom to top the share from Seibert Family Foundation. Bigger dots raise more.
- University of Miami: 5% of income from government
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to Seibert Family Foundation?
Find your warmest path to Seibert 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.
Play a game based on Seibert Family’s filings →