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The Halcyon Foundation at a glance

· Private foundation

The Halcyon 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.

$1.1M
Granted FY2024still arriving
24
Grants FY2024still arriving
12
States reached
$250k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0194% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Education$2.6MSocial Science$1.1MArts & Culture$375kRecreation & Sports$250kPhilanthropy$176kCivil Rights$150kReligion$35kHealth$25kOther$0
02FY2024 · 24 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k1 grant · $1k
  • $10k–50k13 grants · $280k
  • $50k–250k9 grants · $550k
  • $250k+1 grant · $250k
$25,000
Median grant
12
States reached
$30M
Total assets
Largest grants
RecipientAmount
AMERICAN ACADEMY OF SCIENCES AND LETTERS$250,000
UNIVERSITY OF FLORIDA FOUNDATION - JACKSONVILLE URBAN CENTER FUND$100,000
PRINCETON UNIVERSITY - ANDY GOLDEN UNIVERSITY PROFESSORSHIP$100,000
PRINCETONIANS FOR FREE SPEECH$50,000
VERTEX PARTNERSHIP ACADEMIES$50,000
Individual grant recipient$50,000
THRIVE SCHOLARS$50,000
ST PAUL'S SCHOOL$50,000
UNIVERSITY OF VIRGINIA - FREE EXPRESSION VIEWPOINT DIVERSITY FUND$50,000
WHITEFISH COMMUNITY FOUNDATION$50,000
NATIONAL CONSTITUTION CENTER$25,000
THOMAS JEFFERSON FOUNDATION INC$25,000
NORTH VALLEY MUSIC SCHOOL$25,000
FOUNDATION FOR EXCELLENCE IN EDUCATION$25,000
UNITED STATES ROWING ASSOCIATION$25,000
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 (FY17–24) land where the poverty rate runs at 13%, against an area that typically sits at 12%. 62% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 12%AMERICAN ACADEMY OF SCIENCES AND LETTERS: $250k → 11%NATIONAL ROWING FOUNDATION: $25k → 8%THRIVE SCHOLARS: $50k → 16%WHITEFISH COMMUNITY FOUNDATION: $50k → 11%NATIONAL CONSTITUTION CENTER: $25k → 22%THRIVE SCHOLARS: $50k → 14%VERTEX PARTNERSHIP ACADEMIES: $50k → 28%AMERICAN ENTERPRISE INSTITUTE: $500k → 14%JACKSONVILLE UNIVERSITY: $300k → 14%FOUNDATION FOR EXCELLENCE IN EDUCATION: $25k → 19%UNIVERSITY OF FLORIDA FOUNDATION - JACKSONVILLE URBAN CENTER FUND: $100k → 19%UNIVERSITY OF CINCINNATI FOUNDATION - PORTMAN CENTER FOR POLICY SOLUTIONS: $100k → 16%GEORGE POCOCK ROWING FOUNDATION: $50k → 9%FERGUSON CHARITABLE FOUNDATION: $25k → 14%PRINCETON: $225k → 11%THEODORE ROOSEVELT PRESIDENTIAL LIBRARY FOUNDATION: $50k → 10%THEODORE ROOSEVELT PRESIDENTIAL LIBRARY FOUNDATION: $50k → 10%LEADERCOMM: $25k → 7%THOMAS JEFFERSON FOUNDATION INC: $25k → 8%PLAYERS PHILANTHROPY FUND - COLLEGE AND CAREER DREAMS PROGRAM: $25k → 11%JOHNS HOPKINS UNIVERSITY - WILMER EYE INSTITUTE SUMERLIN RP RESEARCH FUND: $25k → 19%ST PAUL'S SCHOOL: $50k → 7%THRIVE SCHOLARS: $50k → 16%NORTH VALLEY MUSIC SCHOOL: $25k → 11%VERTEX PARTNERSHIP ACADEMIES: $50k → 28%AMERICAN ENTERPRISE INSTITUTE: $150k → 14%UNIVERSITY OF NORTH FLORIDA - COEHS URBAN EDUCATION SCHOLARSHIP PROGRAM: $50k → 14%UNIVERSITY OF FLORIDA FOUNDATION: $100k → 19%PRINCETON: $100k → 11%VERTEX PARTNERSHIP ACADEMIES: $50k → 28%AMERICAN ENTERPRISE INSTITUTE: $150k → 14%UNIVERSITY OF NORTH FLORIDA: $50k → 14%PRINCETON UNIVERSITY - ANDY GOLDEN UNIVERSITY PROFESSORSHIP: $100k → 11%UNIVERSITY OF VIRGINIA - ADVANCEMENT OPERATIONS PROGRAMMING FUND: $100k → 8%AMERICAN ENTERPRISE INSTITUTE: $100k → 14%PRINCETON: $50k → 11%UNIVERSITY OF VIRGINIA - FREE EXPRESSION VIEWPOINT DIVERSITY FUND: $50k → 8%AMERICAN ENTERPRISE INSTITUTE: $75k → 14%THE PHILANTHROPY ROUNDTABLE: $50k → 14%JACKSONVILLE SYMPHONY ASSOCIATION: $250k → 14%JACKSONVILLE ALLIANCE FOR KIPP SCHOOLS: $100k → 14%COMMUNITY FOUNDATION FOR NORTHEAST FLORIDA - NINA WATERS LEADERSHIP FUND: $50k → 14%FOUNDATION FOR EXCELLENCE IN HIGHER ED - AMER ACADEMY OF SCIENCES & LETTERS: $250k → 11%TEACH FOR AMERICA-JACKSONVILLE: $50k → 14%PRINCETON UNIVERSITY - JAMES MADISON PROGRAM: $100k → 11%MOCA JACKSONVILLE: $50k → 14%UNITED STATES ROWING ASSOCIATION: $50k → 11%UNIVERSITY OF FLORIDA FOUNDATION: $275k → 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.

Which US states its grants reach

NH
WA
MT
ND
IL
NY
MA
OH
PA
NJ
CA
VA
MD
DE
NC
DC
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.

51%of every dollar goes to organizations it has funded before.
$2.6M · 11 repeat orgs$2.5M to everyone else

Grantees it renews have grown median revenue +54% since the first grant, against +19% for those funded once.

11 repeat relationships: 7 still active in FY2024, 4 since wound down; 15 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

11
19

Total granted

$2.6M
$1.8M

Median revenue growth · since first grant

+54%
+19%

Still filing today

73%
47%

New vs renewed · share of each year

In FY2024, 32% of grant dollars renewed an existing relationship; $705k went to new ones.

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

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

’17’19’20’21’22’23’24
EducationArts & CultureRecreation & SportsSocial SciencePhilanthropyOther
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

  • AE
    AMERICAN ENTERPRISE INSTITUTE FOR PUBLIC POLICY RESEARCH
    5× · 2017–2023 · $975k · revenue +0%
  • THE UNIVERSITY OF FLORIDA FOUNDATION INC
    2× · 2019–2021 · $375k · revenue +75%
  • TS
    THRIVE SCHOLARS
    3× · 2022–2024 · $150k · revenue +55%

Funded once

  • JU
    Jacksonville Universitygraduated
    one grant, 2020 · $300k · revenue +40%
  • FF
    FOUNDATION FOR EXCELLENCE IN HIGHER ED - AMER ACADEMY OF SCIENCES & LETTERS
    one grant, 2023 · $250k
  • JS
    Jacksonville Symphony Association Incgraduated
    one grant, 2021 · $250k · revenue +117%
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
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.

—
2
Thomas Jefferson School of Law

The mission of the school is to provide outstanding legal education in a collegial and supportive environment with attention to newly emerging areas of law, particularly those related to technological development, globalization and the…

Education
3
Furman University

The primary mission of furman as a liberal arts institution is to provide a distinctive education in fine arts, humanities, social sciences, mathematics and the sciences, as well as selected professional disciplines.

Education
4
The Trustees of Princeton University

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…

Education
5
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
6
Atlantic University Inc

Provide post-secondary education of excellence.

Education
7
Jefferson Scholars Foundation

The jefferson scholars foundation (foundation) provides academic merit-based scholarship, fellowship and professorship support to students and faculty at the university of virginia (uva).

Philanthropy
8
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
9
National Association of College and University Attorneys

To advance the practice of higher education attorneys for the benefit of the institutions they serve.

—
10
Thomas Jefferson School

Thomas jefferson school engages its students in the education necessary to live as responsible citizens of the world. through the strongest possible college-prepatory program and within a nurturing community, students develop a…

—
11
Northeast College of Health Sciences

Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.

Education
12
The Peak School

The peak school seeks to ignite a passion for learning, to develop students of diverse talents and backgrounds who think critically and act with integrity, and to graduate compassionate, confident, capable students who will embrace their…

Education
How this is measured
The grantee most central to the portfolio’s shape is The Community Foundation for Northeast Florida Inc; the most unlike its peers is American Academy of Sciences and Letters 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

28 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. 28 of the 48 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.

0
Load-bearing (≥25% of a budget)
2
Early backer (in before they grew)
27/28
Grantees still filing
22/28
Grew since first funded

Where the money sits, by cause and then by grantee

MUNICIPALITY OF PRINCETON: $375,000 · OtherMUNICIPALITY OF PRINCETONFOUNDATION FOR EXCELLENCE IN HIGHER ED - AMER ACADEMY OF SCIENCES & LETTERS: $250,000 · OtherFOUNDATION FOR EXCELLENCE IN HIGHER ED - AM…UNIVERSITY OF FLORIDA FOUNDATION - JACKSONVILLE URBAN CENTER FUND: $200,000 · OtherUNIVERSITY OF FLORIDA FOUNDATION - JACKSONV…PRINCETON UNIVERSITY - ANDY GOLDEN UNIVERSITY PROFESSORSHIP: $100,000 · OtherUNIVERSITY OF AUSTIN: $100,000 · OtherTHE EDUCATIONAL FOUNDATION INC: $100,000 · OtherUNIVERSITY OF VIRGINIA - ADVANCEMENT OPERATIONS PROGRAMMING FUND: $100,000 · OtherPRINCETON UNIVERSITY - JAMES MADISON PROGRAM: $100,000 · OtherPRINCETONIANS FOR FREE SPEECH: $100,000 · OtherUNIVERSITY OF CINCINNATI FOUNDATION - PORTMAN CENTER FOR POLICY SOLUTIONS: $100,000 · OtherUNITED STATES ROWING ASSOCIATION: $75,000 · Other+13 more: $405,000 · Other+13 moreTHE UNIVERSITY OF FLORIDA FOUNDATION INC: $375,000 · EducationTHE UNIVERSITY OF FLORIDA FOUNDATIO…Jacksonville University: $300,000 · EducationJacksonville UniversityAmerican Academy of Sciences and Letters Inc: $250,000 · EducationAmerican Academy of Sciences and Le…THRIVE SCHOLARS: $150,000 · EducationTHRIVE SCHOLARSVERTEX PARTNERSHIP ACADEMIES INC: $150,000 · EducationVERTEX PARTNERSHIP ACADEMIES INCJACKSONVILLE ALLIANCE FOR KIPP SCHOOLS INC: $100,000 · EducationJACKSONVILLE ALLIANCE FOR KIPP SCHO…THEODORE ROOSEVELT PRESIDENTIAL LIBRARY FOUNDATION: $100,000 · EducationTHEODORE ROOSEVELT PRESIDENTIAL LIB…+7 more: $225,000 · Education+7 moreAMERICAN ENTERPRISE INSTITUTE FOR PUBLIC POLICY RESEARCH: $975,000 · Social ScienceAMERICAN ENTERPRISE I…Jacksonville Symphony Association Inc: $250,000 · Arts & CultureTHOMAS JEFFERSON FOUNDATION INC: $50,000 · Arts & CultureNATIONAL CONSTITUTION CENTER: $25,000 · Arts & CultureTHE COMMUNITY FOUNDATION FOR NORTHEAST FLORIDA INC: $51,000 · PhilanthropyWHITEFISH COMMUNITY FOUNDATION INC: $50,000 · PhilanthropyTHE PHILANTHROPY ROUNDTABLE: $50,000 · PhilanthropyPLAYERS PHILANTHROPY FUND INC: $25,000 · PhilanthropyGeorge Pocock Rowing Foundation: $50,000 · Recreation & SportsNATIONAL ROWING FOUNDATION INC: $25,000 · Recreation & Sports
Other$2,005,000Education$1,650,000Social Science$975,000Arts & Culture$325,000Philanthropy$176,000Recreation & Sports$75,000

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 budgetAMERICAN ENTERPRISE INSTITUTE FOR PUBLIC POLICY RESEARCH: $975,000 over 5y, 0.7% of budgetTHE UNIVERSITY OF FLORIDA FOUNDATION INC: $375,000 over 2y, 0.1% of budgetJacksonville University: $300,000 over 1y, 0.2% of budgetAmerican Academy of Sciences and Letters Inc: $250,000 over 1y, 17% of budgetJacksonville Symphony Association Inc: $250,000 over 1y, 2.1% of budgetTHRIVE SCHOLARS: $150,000 over 3y, 0.4% of budgetVERTEX PARTNERSHIP ACADEMIES INC: $150,000 over 3y, 2.3% of budgetTHE EDUCATIONAL FOUNDATION INC: $100,000 over 1y, 0.1% of budgetJACKSONVILLE ALLIANCE FOR KIPP SCHOOLS INC: $100,000 over 1y, 14% of budgetTHEODORE ROOSEVELT PRESIDENTIAL LIBRARY FOUNDATION: $100,000 over 2y, 0.2% of budgetUNITED STATES ROWING ASSOCIATION: $75,000 over 2y, 0.3% of budgetTHE COMMUNITY FOUNDATION FOR NORTHEAST FLORIDA INC: $51,000 over 2y, 0.1% of budgetTHOMAS JEFFERSON FOUNDATION INC: $50,000 over 2y, 0.1% of budgetWHITEFISH COMMUNITY FOUNDATION INC: $50,000 over 1y, 0.3% of budgetTeach for America Inc: $50,000 over 1y, 0.0% of budgetTHE PHILANTHROPY ROUNDTABLE: $50,000 over 1y, 0.5% of budgetST PAUL'S SCHOOL: $50,000 over 1y, 0.1% of budgetGeorge Pocock Rowing Foundation: $50,000 over 1y, 2.4% of budgetDePaul School of Northeast Florida: $50,000 over 2y, 1.4% of budgetFOUNDATION FOR EXCELLENCE IN EDUCATION INC: $25,000 over 1y, 0.4% of budgetEPISCOPAL SCHOOL OF JACKSONVILLE INC: $25,000 over 1y, 0.1% of budgetNATIONAL CONSTITUTION CENTER: $25,000 over 1y, 0.1% of budgetWorld Affairs Council of Jacksonville Inc: $25,000 over 1y, 2.4% of budgetNATIONAL ROWING FOUNDATION INC: $25,000 over 1y, 2.0% of budgetJOHNS HOPKINS UNIVERSITY: $25,000 over 1y, 0.0% of budgetPLAYERS PHILANTHROPY FUND INC: $25,000 over 1y, 0.1% of budgetFERGUSON CHARITABLE FOUNDATION: $25,000 over 1y, 0.8% of budgetNORTH VALLEY MUSIC SCHOOL: $25,000 over 1y, 0.8% 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.

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.

The Community Foundat…Arthur Vining Davis F…Csx Foundation IncVanguard Charitable E…Renaissance Charitabl…National Philanthropi…Gs Donor Advised Phil…The US Charitable Gif…Morgan Stanley Global…Jewish Communal FundRaymond James Charita…The Bank of America C…
The Community Foundation for Northeast Florida IncFL15.3× affinity5 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Community Foundation for Northeast Florida Inc · Arthur Vining Davis Foundation #2 · Csx Foundation Inc · Vanguard Charitable Endowment Program · Renaissance Charitable Foundation Inc · National Philanthropic Trust · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · The US Charitable Gift Trust · Morgan Stanley Global Impact Funding Trust Inc · Jewish Communal Fund · Raymond James Charitable Endowment Fund · The Bank of America Charitable Foundation Inc

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 The Halcyon Foundation funds: left to right is the share of its income from government, bottom to top the share from The Halcyon Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 80%1%5%11%20%funder's share of their income ↑0%5%10%15%20%share of the org’s income from government →median 12%
  • Johns Hopkins University: 12% of income from government
  • Jacksonville University: 3% of income from government
no gov moneyreceives it· size = income
8get no government money at all
4report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–20%
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.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to The Halcyon Foundation?

Find your warmest path to The Halcyon 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 48 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Halcyon’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