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Seidensticker Family Foundation at a glance

· Private foundation

Seidensticker 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.

$328k
Granted FY2025still arriving
4
Grants FY2025still arriving
4
States reached
$250k
Largest
01What it fundsRead
02The needRead
03Its fieldRead
04Through PlinthRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2024.

Animals$185kPublic Benefit$150kHealth$105kPhilanthropy$80kEducation$50kInternational$25k
02FY2025 · 4 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k1 grant · $4k
  • $10k–50k2 grants · $74k
  • $250k+1 grant · $250k
$46,500
Median grant
4
States reached
$1.7M
Total assets
Largest grants
RecipientAmount
TURNING POINT USA$250,000
BIG GREEN$46,500
FIDELITY INVESTMENTS CHARITABLE GIFT FUND$27,500
LEUKEMIA AND LYMPHOMA SOCIETY$4,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Dollar for dollar, its grants (FY21–25) land where the poverty rate runs at 12%, against an area that typically sits at 11%. 86% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%TURNING POINT USA: $250k → 11%FIDELITY INVESTMENTS CHARITABLE GIFT FUND: $28k → 16%LEUKEMIA AND LYMPHOMA SOCIETY: $4k → 8%PLEDGELING FOUNDATION: $80k → 10%THE UCLA FOUNDATION: $50k → 14%THE TIBET FUND: $25k → 17%HEALTHY MINDS INNOVATIONS: $45k → 10%PLANNED PARENTHOOD: $5k → 12%PAWS CHICAGO: $107k → 14%TURNING POINT USA: $150k → 11%BREAST CANCER RESEARCH FOUNDATION: $55k → 17%BIG GREEN: $47k → 12%PAWS CHICAGO: $72k → 14%PAWS CHICAGO: $5k → 14%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
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.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its field

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.

1
Target Als Foundation Inc

Our mission is to break down barriers to als research to find effective treatments. by uniting academia, the pharma and biotech industry, government, venture capital, related nonprofits, and the als community, we aim to overcome the…

Education
2
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
3
Parker Institute for Cancer Immunotherapy

The parker institute for cancer immunotherapy's (pici) mission is to develop and accelerate access to breakthrough cancer therapies, curating innovation from discovery to patient access.

Health
4
Targeting Resistance in Cancer Cooperative
Health
5
The Susan G Komen Breast Cancer Fdn Group

Susan g. komen 's mission is to save lives by meeting the most critical needs in our communities & investing in breakthrough research to prevent & cure breast cancer.

—
6
Parenteral Drug Association Inc

To develop scientifically sound, practical technical information and resources to advance science and regulation for the pharmaceutical and biopharmaceutical industry through the expertise of our global membership.

—
7
Pathfinder International

Pathfinder expands access to sexual and reproductive health services, opening the door to opportunities for women and all individuals to thrive-economically, educationally, and civically. driven by our country-led leadership and local…

International
8
Trustees of Boston University

Organization's mission: boston university is an international, comprehensive, private research university, committed to educating students to be reflective, resourceful individuals ready to live, adapt, and lead in an interconnected world.…

—
9
MRIGlobal

To improve the lives of people through innovative scientific and engineering research.

Science & Tech
10
Curebound

Curebound's mission is to accelerate cancer research and save lives. we raise and invest strategic funding for innovative adult and pediatric cancer research with one vision: cures in our lifetime.

Health
11
Global Carbon Market Utility Governing Council Inc

Global carbon market utility governing council inc (gcmu governing council inc) is dedicated to dramatically reducing the amount of carbon dioxide and related greenhouse gases in the earth's atmosphere, thereby helping to preserve and…

Environment
12
Prostate Cancer Foundation

The prostate cancer foundation (pcf) funds the world's most promising research on the biology and treatment of prostate cancer, accelerating those discoveries into therapies and strategies designed to improve the quality of life and…

Philanthropy
How this is measured
The grantee most central to the portfolio’s shape is Tibet Fund Inc; the most unlike its peers is Blood Cancer United Inc. 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

11 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.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
0
Early backer (in before they grew)
11/11
Grantees still filing
4/11
Grew since first funded

Where the money sits, by cause and then by grantee

TURNING POINT USA INC: $400,000 · OtherTURNING POINT USA INCHEALTHY MINDS INNOVATIONS INC: $45,000 · OtherHEALTHY MINDS INNOVATIONS INCTibet Fund Inc: $25,000 · Other+2 more: $9,000 · OtherPAWS CHICAGO: $184,925 · AnimalsPAWS CHICAGOPLEDGELING FOUNDATION: $79,700 · PhilanthropyPLEDGELIN…THE BREAST CANCER RESEARCH FOUNDATION INC: $55,000 · Public Safety & DisasterUCLA FOUNDATION: $50,000 · EducationBig Green: $46,500 · Food & NutritionFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $27,500 · Community Improvement
Other$479,000Animals$184,925Philanthropy$79,700Public Safety & Disaster$55,000Education$50,000Food & Nutrition$46,500Community Improvement$27,500

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetTURNING POINT USA INC: $400,000 over 2y, 0.2% of budgetPAWS CHICAGO: $184,925 over 3y, 0.4% of budgetPLEDGELING FOUNDATION: $79,700 over 1y, 0.1% of budgetTHE BREAST CANCER RESEARCH FOUNDATION INC: $55,000 over 1y, 0.1% of budgetUCLA FOUNDATION: $50,000 over 1y, 0.0% of budgetHEALTHY MINDS INNOVATIONS INC: $45,000 over 1y, 1.2% of budgetFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $27,500 over 1y, 0.0% of budgetTibet Fund Inc: $25,000 over 1y, 0.1% of budgetROCKY MOUNTAIN PLANNED PARENTHOOD INC: $5,000 over 1y, 0.0% of budgetBLOOD CANCER UNITED INC: $4,000 over 1y, 0.0% of budget
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.

How much its grantees rely on government

Each dot is one organization Seidensticker Family Foundation funds: left to right is the share of its income from government, bottom to top the share from Seidensticker Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%0%1%3%5%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    1report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    typical government reliance, FY20–25
    How this is measured
    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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
    04Through Plinth

    Warm introductions · Powered by PlinthPlus

    How do I get to Seidensticker Family Foundation?

    Find your warmest path to Seidensticker 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.

    On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 11 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

    How this is measured
    Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

    Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

    Play a game based on Seidensticker Family’s filings →

    More from the funding graph

    The unnamed billions
    grants reported with no recipient in the public record
    The regranting layer
    51% of grant dollars land in the regranting layer
    The DAF merry-go-round
    $9.7B circulates between donor-advised funds
    The endowment market
    who holds foundation money, and what just moved
    The camps
    funders cluster by geography, not ideology
    By state
    where grant money is based, and what stays home