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Data / Foundation grants / The Halcyon Foundation

The Halcyon Foundation: 24 grants to organizations, $1.1 million (tax year ended December 2024)

The Halcyon Foundation, a private foundation in Jacksonville, FL, paid 24 grants to organizations totaling $1,081,000 in its tax year ended December 2024, according to its Form 990-PF filed with the IRS on November 12, 2025. The largest was $250,000 to American Academy of Sciences and Letters in Dover, DE for general use.

SpecStream is the live web data engine for teams and agents. It reads every private foundation's Form 990-PF as the IRS publishes it, and this page is that reading. Ask for the foundations that fund your cause in your state, with the amounts and purposes, and new grants arrive in your sheet, CRM, Slack or agent as the returns are filed.

EIN
306462100
Based in
Jacksonville, FL
Assets
$29,735,334
Grants paid
$1,081,000
Tax year ended
December 2024

Grants paid, tax year ended December 2024

From the Form 990-PF filed November 12, 2025, IRS object ID 202533169349103458. It reported $1,081,000 in grants paid; 24 grants to organizations are listed.

RecipientLocationPurposeCauseAmountSource
American Academy of Sciences and LettersDover, DEGeneral useEducation$250,000apps.irs.gov
Princeton University - Andy Golden University ProfessorshipPrinceton, NJGeneral use$100,000apps.irs.gov
University of Florida Foundation - Jacksonville Urban Center FundGainesville, FLGeneral use$100,000apps.irs.gov
Moca JacksonvilleJacksonville, FLGeneral use$50,000apps.irs.gov
Princetonians for Free SpeechBurlingame, CAGeneral use$50,000apps.irs.gov
St Paul's SchoolConcord, NHGeneral use$50,000apps.irs.gov
Thrive ScholarsLos Angeles, CAGeneral useEducation$50,000apps.irs.gov
University of Virginia - Free Expression Viewpoint Diversity FundCharlottesville, VAGeneral use$50,000apps.irs.gov
Vertex Partnership AcademiesBronx, NYGeneral useEducation$50,000apps.irs.gov
Whitefish Community FoundationWhitefish, MTGeneral usePhilanthropy, voluntarism and grantmaking foundations$50,000apps.irs.gov
Depaul School of Northeast FloridaJacksonville, FLGeneral use$25,000apps.irs.gov
Ferguson Charitable FoundationChicago, ILGeneral useEducation$25,000apps.irs.gov
Foundation for Excellence in EducationTallahassee, FLGeneral use$25,000apps.irs.gov
LeadercommArlington, VAGeneral use$25,000apps.irs.gov
National Constitution CenterPhiladelphia, PAGeneral useArts, culture and humanities$25,000apps.irs.gov
National Rowing FoundationMelrose, MAGeneral useRecreation and sports$25,000apps.irs.gov
North Valley Music SchoolWhitefish, MTGeneral useEducation$25,000apps.irs.gov
Thomas Jefferson Foundation IncCharlottesville, VAGeneral useArts, culture and humanities$25,000apps.irs.gov
United States Rowing AssociationWest Windsor, NJGeneral use$25,000apps.irs.gov
Princeton University - Support Work of Professor Bernard HaykelPrinceton, NJGeneral use$20,000apps.irs.gov
Princeton University - Benjamin H Griswold III CenterPrinceton, NJGeneral use$15,000apps.irs.gov
College & Career DreamsTowson, MDGeneral use$10,000apps.irs.gov
Novo Mission Inc - Innerchange HorizonsAnaheim, CAGeneral use$10,000apps.irs.gov
Community Foundation for Northeast FloridaJacksonville, FLGeneral usePhilanthropy, voluntarism and grantmaking foundations$1,000apps.irs.gov

Causes funded

From grants whose recipient has a cause.

States funded

Recipient stateGranted
Delaware$250,000
Florida$201,000
New Jersey$160,000
California$110,000
Virginia$100,000
Montana$75,000
New Hampshire$50,000
New York$50,000

Also on SpecStream

Updated November 12, 2025. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.