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· Private foundation

Stiefel Freethought 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.

$412k
Granted FY2025still arriving
21
Grants FY2025still arriving
12
States reached
$100k
Largest
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Arts & Culture$1.8MCivil Rights$813kPublic Benefit$644kReligion$616kHealth$204kSocial Science$111kPhilanthropy$106kHuman Services$41kOther$0
02FY2025 · 21 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k13 grants · $17k
  • $10k–50k4 grants · $85k
  • $50k–250k4 grants · $310k
$1,000
Median grant
12
States reached
$1.2M
Total assets
Largest grants
RecipientAmount
RELIGION NEWS LLC$100,000
FISCAL SPONSORSHIP ALLIES INC$100,000
PUBLIC CONCERN FOUNDATION INC$60,000
PEOPLE FOR THE AMERICAN WAY FOUNDATION$50,000
DISARMING LEVIATHAN MINISTRIES INC$35,000
CENTER FOR INQUIRY INC$20,250
ATHEISTS UNITED$20,000
AMERICAN VALUES PROJECT$10,000
AMERICANS UNITED FOR SEPARATION OF CHURCH & STATE$5,000
MILITARY RELIGIOUS FREEDOM FOUNDATION INC$1,000
CAMP QUEST INC$1,000
AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC$1,000
COMMON CAUSE EDUCATION FUND$1,000
TRIANGLE FREETHOUGHT SOCIETY$1,000
COMMON CAUSE EDUCATION FUND$1,000
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:

Its human-services grants (FY17–23, $41k) land where the poverty rate runs at 4%, against an area that typically sits at 10%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 10%EX-MUSLIMS OF NORTH AMERICA: $26k → 4%EX-MUSLIMS OF NORTH AMERICA: $10k → 4%EX-MUSLIMS OF NORTH AMERICA: $1k → 4%EX-MUSLIMS OF NORTH AMERICA: $1k → 4%EX-MUSLIMS OF NORTH AMERICA: $1k → 4%EX-MUSLIMS OF NORTH AMERICA: $1k → 4%EX-MUSLIMS OF NORTH AMERICA: $1k → 4%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.

Which US states its grants reach

WA
WI
NY
MA
IN
OH
PA
NJ
CA
MO
VA
DE
AZ
NM
NC
SC
DC
GA
TX
FL
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 grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

89%of every dollar goes to organizations it has funded before.
$3.9M · 40 repeat orgs$465k to everyone else

Grantees it renews have grown median revenue +7% since the first grant, against 0% for those funded once.

40 repeat relationships: 18 still active in FY2025, 22 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

40
11

Total granted

$3.9M
$345k

Median revenue growth · since first grant

+7%
0%

Still filing today

75%
64%

New vs renewed · share of each year

In FY2025, 71% of grant dollars renewed an existing relationship; $120k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
Arts & CultureReligionEducationScience & TechCivil RightsInternationalOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • AU
    AMERICANS UNITED FOR SEPARATION OF CHURCH AND STATE
    9× · 2017–2025 · $367k · revenue +103%
  • RN
    RELIGION NEWS FOUNDATION
    2× · 2022–2023 · $200k · revenue +258%
  • CC
    COMMON CAUSE EDUCATION FUND
    8× · 2018–2025 · $136k · revenue +187%

Funded once

  • WM
    WORLD MENTAL HEALTH COALITION
    one grant, 2021 · $100k
  • TF
    THE FILM COLLABORATIVE INC
    one grant, 2024 · $100k · revenue 0%
  • EM
    EMERGENCY MEDICINE FOUNDATION
    one grant, 2021 · $100k · revenue -9%
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.

04Its 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
Secular Coalition for America Inc

To increase the visibility and respect for nontheistic viewpoints in the United States and to protect and strengthen the secular character of our government.

Civil Rights
2
American Enterprise Institute for Public Policy Research

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…

Social Science
3
Pew Research Center

Pew Research Center is a nonpartisan "fact tank" that informs the public about the issues, attitudes and trends shaping America and the world. Pew Research Center generates a foundation of facts that enriches the public dialogue and…

Social Science
4
American Political Science Association

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,…

Social Science
5
American Academy of Sciences and Letters Inc

The American Academy of Sciences and Letters (AASL) promotes scholarship and honors outstanding achievement in the arts, sciences, and learned professions. It encourages the fruitful exchange of ideas within academia and society at large…

Education
6
American Civil Liberties Union Fund of the District of Columbia

Preservation of civil liberties through litigation and public education.

—
7
United States Naval Institute

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.

—
8
The American Assembly

A national non partisan public policy forum to illuminate issues of public policy.

—
9
The Center for Freethought Equality

The center for freethought equality (cfe) is a sister organization of the american humanist association (aha) dedicated to lobbying and political advocacy. cfe will significantly increase humanist activity in key washington coalitions, and…

Civil Rights
10
American Foreign Service Association

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…

—
11
American Anthropological Association

To advance anthropology as the science that studies humankind in all its aspects, through archeological, biological, ethnological, and linguistic research; and to further the professional interest of american anthropologist, including the…

Social Science
12
American Civil Liberties Union of the District of Columbia

Preservation of civil liberties through advocacy and lobbying.

—
How this is measured
The grantee most central to the portfolio’s shape is Americans United for Separation of Church and State; the most unlike its peers is Camp Quest 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

42 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. 42 of the 53 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.

2
Load-bearing (≥25% of a budget)
7
Early backer (in before they grew)
39/42
Grantees still filing
21/42
Grew since first funded

Where the money sits, by cause and then by grantee

CENTER FOR INQUIRY INC: $1,555,250 · Arts & CultureCENTER FOR INQUIRY INCThomas Paine Memorial Association Inc: $105,000 · Arts & CultureThomas Paine Memorial Association IncTHE FILM COLLABORATIVE INC: $100,000 · Arts & CultureTHE FILM COLLABORATIVE INC+3 more: $10,000 · Arts & CultureCOMMON CAUSE EDUCATION FUND - NORTH CAROLINA: $201,000 · OtherCOMMON CAUSE EDUCATION FUND -…RELIGION NEWS LLC: $200,000 · OtherRELIGION NEWS LLCAMERICAN VALUES PROJECT: $186,000 · OtherAMERICAN VALUES PROJECTWORLD MENTAL HEALTH COALITION: $100,000 · OtherWORLD MENTAL HEALTH COALITIONTHE AMERICAN HUMANIST ASSOCIATION: $56,000 · OtherCENTER FOR APPLIED POLITICAL THEOLOGY: $55,000 · OtherEMERGENCY MEDICINE FOUNDATION: $100,000 · OtherEMERGENCY MEDICINE FOUNDATIONEX-MUSLIMS OF NORTH AMERICA: $41,000 · Other+26 more: $218,000 · Other+26 moreAMERICANS UNITED FOR SEPARATION OF CHURCH AND STATE: $367,000 · Civil RightsAMERICANS UN…PEOPLE FOR THE AMERICAN WAY FOUNDATION: $107,000 · Civil RightsPEOPLE FOR T…+1 more: $9,000 · Civil RightsPUBLIC CONCERN FOUNDATION INC: $285,000 · Community ImprovementPUBLIC CO…FISCAL SPONSORSHIP ALLIES INC: $100,000 · Community ImprovementFISCAL SP…RELIGION NEWS FOUNDATION: $200,000 · ReligionPUBLIC RELIGION RESEARCH INSTITUTE INC: $103,000 · Religion+3 more: $23,000 · ReligionCOMMON CAUSE EDUCATION FUND: $136,000 · Public Benefit+1 more: $3,000 · Public BenefitSecular Coalition for America Education Fund: $111,000 · Social Science
Arts & Culture$1,770,250Other$1,157,000Civil Rights$483,000Community Improvement$385,000Religion$326,000Public Benefit$139,000Social Science$111,000

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetCENTER FOR INQUIRY INC: $1,555,250 over 9y, 17% of budgetAMERICANS UNITED FOR SEPARATION OF CHURCH AND STATE: $367,000 over 9y, 0.8% of budgetPUBLIC CONCERN FOUNDATION INC: $285,000 over 2y, 23% of budgetRELIGION NEWS FOUNDATION: $200,000 over 2y, 3.8% of budgetCOMMON CAUSE EDUCATION FUND: $136,000 over 8y, 1.4% of budgetSecular Coalition for America Education Fund: $111,000 over 3y, 18% of budgetPEOPLE FOR THE AMERICAN WAY FOUNDATION: $107,000 over 9y, 1.2% of budgetThomas Paine Memorial Association Inc: $105,000 over 2y, 95% of budgetPUBLIC RELIGION RESEARCH INSTITUTE INC: $103,000 over 4y, 2.2% of budgetTHE FILM COLLABORATIVE INC: $100,000 over 1y, 0.7% of budgetEMERGENCY MEDICINE FOUNDATION: $100,000 over 1y, 3.7% of budgetFISCAL SPONSORSHIP ALLIES INC: $100,000 over 1y, 0.1% of budgetTHE AMERICAN HUMANIST ASSOCIATION: $56,000 over 4y, 0.9% of budgetEX-MUSLIMS OF NORTH AMERICA: $41,000 over 7y, 6.2% of budgetSECULAR STUDENT ALLIANCE: $33,000 over 7y, 3.6% of budgetBLACK NONBELIEVERS: $33,000 over 9y, 27% of budgetMILITARY RELIGIOUS FREEDOM FOUNDATION INC: $14,000 over 9y, 0.9% of budgetCAMP QUEST INC: $12,000 over 7y, 1.9% of budgetPANORAMA GLOBAL: $10,000 over 1y, 0.0% of budgetDUKE UNIVERSITY: $10,000 over 1y, 0.0% of budgetAMERICAN CIVIL LIBERTIES UNION OF NORTH CAROLINA INC: $9,000 over 5y, 0.7% of budgetAMERICAN ATHEISTS INC: $9,000 over 9y, 0.1% of budgetFREEDOM FROM RELIGION FOUNDATION INC: $9,000 over 9y, 0.0% of budgetAMERICAN CIVIL LIBERTIES UNION FOUNDATION INC: $9,000 over 9y, 0.0% of budgetAMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE: $7,000 over 7y, 0.0% of budgetTHE UNION OF CONCERNED SCIENTISTS INC: $6,000 over 6y, 0.0% of budgetGO HUMANITY INC: $6,000 over 6y, 0.3% of budgetNational Center for Science Education: $6,000 over 6y, 0.1% of budgetSchool for Conversion Inc: $5,000 over 1y, 9.6% of budgetThe Harry Bridges Project: $5,000 over 1y, 12% of budgetHispanic American Freethinkers Inc: $4,000 over 4y, 9.4% of budgetCENTER FOR APPLIED RATIONALITY: $4,000 over 4y, 0.1% of budgetTHOMAS PAINE HISTORICAL ASSOCIATION: $3,000 over 1y, 4.4% of budgetRepresentUs Education Fund: $3,000 over 3y, 0.0% of budgetAMERICAN GEOPHYSICAL UNION: $3,000 over 3y, 0.0% of budgetNATIONAL SCIENCE TEACHING ASSOCIATION: $3,000 over 3y, 0.0% of budgetFUTURE OF LIFE INSTITUTE: $2,000 over 2y, 0.0% of budgetTHE PLANETARY SOCIETY: $2,000 over 2y, 0.0% of budgetINSTITUTE FOR SCIENCE AND HUMAN VALUES INC: $1,000 over 1y, 0.9% 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.

  • Who funds CENTER FOR INQUIRY INC ↗
  • Who funds AMERICANS UNITED FOR SEPARATION OF CHURCH AND STATE ↗
  • Who funds PUBLIC CONCERN FOUNDATION INC ↗
  • Who funds RELIGION NEWS FOUNDATION ↗
  • Who funds COMMON CAUSE EDUCATION FUND ↗
  • Who funds Secular Coalition for America Education Fund ↗
  • Who funds PEOPLE FOR THE AMERICAN WAY FOUNDATION ↗
  • Who funds Thomas Paine Memorial Association Inc ↗
  • Who funds PUBLIC RELIGION RESEARCH INSTITUTE INC ↗
  • Who funds THE FILM COLLABORATIVE INC ↗
  • Who funds EMERGENCY MEDICINE FOUNDATION ↗
  • Who funds FISCAL SPONSORSHIP ALLIES INC ↗
  • Who funds THE AMERICAN HUMANIST ASSOCIATION ↗
  • Who funds EX-MUSLIMS OF NORTH AMERICA ↗
  • Who funds SECULAR STUDENT ALLIANCE ↗
  • Who funds BLACK NONBELIEVERS ↗
  • Who funds Atheists United ↗
  • Who funds MILITARY RELIGIOUS FREEDOM FOUNDATION INC ↗
  • Who funds CAMP QUEST INC ↗
  • Who funds PANORAMA GLOBAL ↗
  • Who funds DUKE UNIVERSITY ↗
  • Who funds AMERICAN CIVIL LIBERTIES UNION OF NORTH CAROLINA INC ↗
  • Who funds AMERICAN ATHEISTS INC ↗
  • Who funds FREEDOM FROM RELIGION FOUNDATION INC ↗
  • Who funds AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC ↗
  • Who funds AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE ↗
  • Who funds THE UNION OF CONCERNED SCIENTISTS INC ↗
  • Who funds GO HUMANITY INC ↗
  • Who funds National Center for Science Education ↗
  • Who funds School for Conversion Inc ↗
  • Who funds The Harry Bridges Project ↗
  • Who funds Hispanic American Freethinkers Inc ↗

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.

Johnson James Hervey Char Ed TrustCA17.9× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Johnson James Hervey Char Ed Trust · Freedom From Religion Foundation Inc · Charter Charitable Foundation · Silicon Valley Community Foundation · Texas Instruments Foundation · Ge Aerospace Foundation · The Pfizer Foundation Inc · Shell USA Company Foundation · Jpmorgan Chase Foundation · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · The Blackbaud Giving Fund

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

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

2024
’20’21’22’23’24’25
no gov · 30%6%25%56%100%funder's share of their income ↑0%8%15%22%30%share of the org’s income from government →
    no gov moneyreceives it· size = income
    3get no government money at all
    0rely on government for over half their income
    ⤢ axis zoomed · 0–30%
    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.

    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 53 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

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