Private foundation · EIN 13-3354308

Robert David Lion Gardiner Foundation Inc

Accepts applications

Riverhead, NY

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Tax year 2025 (period ending 2025-12-31) · Filed with IRS 2026 · Data as of 2026-10-24 · View filing on ProPublica · Source: IRS e-file object 202612379349100601
Total assets (EOY)$122,665,581
Grants paid$3,955,435
Typical (median) grant$10,000
Grants listed85
Giving in home state (NY)82%

Grant size distribution

RangeGrants
Under $5K23
$5K–$25K29
$25K–$100K21
$100K+12

Smallest $1,152 · Largest $500,000

Geographic focus

NY
82%
DC
8%
VA
8%
CT
2%
NH
0%
MA
0%

Common purposes

awardgardineryoungscholarmatchchallengepymtscholarshipcohalanpaymentdiamondsponsorawardsgrantsexhibit

Giving history

Tax yearContributions paidTotal assetsGrants listed
2023$3,955,695$66,968,51361
2024$7,791,959$115,085,42491
2025$3,955,435$122,665,58185

Years shown are the filings ingested so far; more years are added as additional IRS batches are processed.

How to apply

ContactKATHRYN CURRAN
Address30 WEST MAIN ST, SUITE 309, RIVERHEAD, NY, 11901
Phone6315943990
Form & materialsALL APPLICANTS MUST COMPLETE THE MAIN APPLICATION FORM, PROPOSAL CHECKLIST AND PARTS A - E, PLUS ATTACHMENTS, AS WELL AS ANY ADDITIONAL FORMS THAT ARE APPLICABLE TO THE PROJECT. THE APPLICATION FORMS CAN BE FOUND ON THE FOUNDATION'S WEBSITE.
DeadlinesGRANTS ARE REVIEWED TWICE PER YEAR. APPLICATIONS ARE DUE THE SECOND FRIDAY IN MARCH, BY 5P.M. AND TH
RestrictionsTHE FOUNDATION GIVES GRANTS UP TO 500,000. AWARD AMOUNTS, AS WELL AS MATCHING LEVELS, VARY DEPENDING ON THE TYPE OF PROJECT. THE DIFFERENT CATEGORIES AND FUNDING LIMITS CAN BE FOUND ON THE FOUNDATION'S WEBSITE.

Source: 990-PF Part XV line 2, tax year 2025.

Top recipients (tax year 2025)

RecipientLocationPurposeAmount
Cold Spring Harbor LaboratoryCOLD SPRING HARBOR, NY2023 GRANT PAYMENT 2 OF 6$500,000
National Trust For Historic PresvWASHINGON, DC2023 GRANT AWARD PYMT 3 OF 3$333,333
Pbs FoundationARLINGTON, VA2023 GRANT AWARD PYMT 2 OF 3$333,333
East End Seaport Museum AndGREENPORT, NY2025 GYS AND GRANT AWARD$295,440
Long Island UniversityBROOKVILLE, NY2022 GRANT AWARD PYMT 4 OF 4$250,000
Celebrate St James Past PresentST JAMES, NY2025 GRANT AWARD$211,300
Sag Harbor Historical MuseumSAG HARBOR, NY2025 GYS AND GRANT AWARD$200,876
Cooper Union For The Adv Of ScienceNEW YORK, NY2025 GRANT 1 OF 3$200,000
New York UniversityNEW YORK, NY2024 GRANT AWARD PYMT 2 OF 6$200,000
Northport Historical SocietyNORTHPORT, NY2025 GYS AND GRANT AWARD$177,610
Research Foundation Suny GeneseoALBANY, NY2025 GRANT AWARD$112,080
Hispanic Society Museum And LibraryNEW YORK, NY2025 GRANT AWARD$100,000
Mystic Seaport Museum IncMYSTIC, CT2023 GRANT AWARD PYMT 3 OF 3$98,767
Long Island Music And EntertainmentSTONY BROOK, NY2025 GRANT AWARD$87,400
Greater Hudson Heritage NetworkELMSFORD, NYGRANT PAYMENT AND ANNUAL SPONSOR$66,000
Greater Hudson Heritage NetworkELMSFORD, NY2023 GRANT PAYMENT$62,000
East Hampton Historical SocietyEAST HAMPTON, NY2025 GRANT AWARD$59,785
Huntington Historical SocietyHUNTINGTON, NY2025 GARDINER YOUNG SCHOLAR/GRANT$51,600
Long Island Children'S MuseumGARDEN CITY, NY2024 GRANT PYMT 2 OF 2$50,000
Southampton Center Of The Arts IncSOUTHAMPTON, NY2025 GRANT AWARD$50,000
The Gotham Center For New York CityBROOKLYN, NY2025 GRANT AWARD PYMT 1 OF 2$50,000
The New York Landmarks ConservancyNEW YORK, NY2025 GRANT AWARD PYMT 1 OF 3$50,000
Long Beach Historical SocietyLONG BEACH, NY2025 GRANT AWARD PYMT 1 OF 2$45,580
Montauk Historical SocietyMONTAUK, NY2025 GYS AND GRANT AWARD$45,061
Holocaust Memorial & ToleranceGLEN COVE, NY2025 GRANT AWARD$40,000
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