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Data / Foundation grants / Robert David Lion Gardiner Foundation Inc

Robert David Lion Gardiner Foundation Inc: 81 grants to organizations, $4.2 million (tax year ended December 2025)

Robert David Lion Gardiner Foundation Inc, a private foundation in Riverhead, NY, paid 81 grants to organizations totaling $4,229,550 in its tax year ended December 2025, according to its Form 990-PF filed with the IRS on August 25, 2026. The largest was $500,000 to Cold Spring Harbor Laboratory in Cold Spring Harbor, NY for 2023 grant payment 2 of 6.

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
133354308
Based in
Riverhead, NY
Assets
$122,665,581
Grants paid
$4,262,675
Tax year ended
December 2025

Grants paid, tax year ended December 2025

From the Form 990-PF filed August 25, 2026, IRS object ID 202612379349100601. It reported $4,262,675 in grants paid; 81 grants to organizations are listed.

RecipientLocationPurposeCauseAmountSource
Cold Spring Harbor LaboratoryCold Spring Harbor, NY2023 grant payment 2 of 6Science and technology$500,000apps.irs.gov
National Trust for Historic PresvWashingon, DC2023 grant award pymt 3 of 3$333,333apps.irs.gov
PBS FoundationArlington, VA2023 grant award pymt 2 of 3Arts, culture and humanities$333,333apps.irs.gov
East End Seaport Museum and Marine FoundationGreenport, NY2025 gys and grant award$295,440apps.irs.gov
Long Island UniversityBrookville, NY2022 grant award pymt 4 of 4$250,000apps.irs.gov
Celebrate St James Past Present FutureSt James, NY2025 grant awardArts, culture and humanities$211,300apps.irs.gov
Sag Harbor Historical MuseumSag Harbor, NY2025 gys and grant award$200,876apps.irs.gov
Cooper Union for the Adv of ScienceNew York, NY2025 grant 1 of 3$200,000apps.irs.gov
New York UniversityNew York, NY2024 grant award pymt 2 of 6Education$200,000apps.irs.gov
Northport Historical SocietyNorthport, NY2025 gys and grant awardArts, culture and humanities$177,610apps.irs.gov
Research Foundation Suny GeneseoAlbany, NY2025 grant award$112,080apps.irs.gov
Hispanic Society Museum and LibraryNew York, NY2025 grant award$100,000apps.irs.gov
Mystic Seaport Museum IncMystic, CT2023 grant award pymt 3 of 3Arts, culture and humanities$98,767apps.irs.gov
Long Island Music and Entertainment Hall of FameStony Brook, NY2025 grant award$87,400apps.irs.gov
Greater Hudson Heritage NetworkElmsford, NYGrant payment and annual sponsor$66,000apps.irs.gov
Greater Hudson Heritage NetworkElmsford, NY2023 grant payment$62,000apps.irs.gov
East Hampton Historical SocietyEast Hampton, NY2025 grant award$59,785apps.irs.gov
Huntington Historical SocietyHuntington, NY2025 gardiner young scholar/grantArts, culture and humanities$51,600apps.irs.gov
Long Island Children's MuseumGarden City, NY2024 grant pymt 2 of 2$50,000apps.irs.gov
Southampton Center of the Arts IncSouthampton, NY2025 grant award$50,000apps.irs.gov
The Gotham Center for New York City History IncBrooklyn, NY2025 grant award pymt 1 of 2$50,000apps.irs.gov
The New York Landmarks ConservancyNew York, NY2025 grant award pymt 1 of 3$50,000apps.irs.gov
Long Beach Historical SocietyLong Beach, NY2025 grant award pymt 1 of 2$45,580apps.irs.gov
Montauk Historical SocietyMontauk, NY2025 gys and grant awardArts, culture and humanities$45,061apps.irs.gov
Holocaust Memorial & Tolerance Center of Nassau CountyGlen Cove, NY2025 grant award$40,000apps.irs.gov
Lewis Latimer HouseFlushing, NY2025 grant award$38,538apps.irs.gov
Bellport-Brookhaven Historical SocietyBellport, NY2024 & 2025 awards and grantsArts, culture and humanities$35,239apps.irs.gov
Long Island Library Resources CouncilBellport, NY2025 grant awardEducation$33,660apps.irs.gov
Museum of the City of New YorkNew York, NY2025 grant award pymt 1 of 3Arts, culture and humanities$33,333apps.irs.gov
Parrish Art MuseumWatermill, NY2025 grant awardArts, culture and humanities$30,425apps.irs.gov
Historic Richmond TownStaten Island, NY2025 grant award - diamond match$30,067apps.irs.gov
Friends of Alice Austen House IncStaten Island, NY2025 grant award-diamond matchArts, culture and humanities$26,470apps.irs.gov
Louis Armstrong House MuseumCorona, NY2025 grant awardArts, culture and humanities$25,000apps.irs.gov
The Folly Tree ArboretumEast Hampton, NY2025 grant award$23,000apps.irs.gov
Trustees of Columbia University in the City of New YorkNew York, NY2025 grant award pymt 1 of 5$22,000apps.irs.gov
Dartmouth CollegeHanover, NH2024 cohalan scholarship$15,000apps.irs.gov
Cutchogue-New Suffolk Historical CouncilCutchogue, NY2025 gys and grant awardArts, culture and humanities$11,600apps.irs.gov
Friends of Old Bethpage Village RestorationEast Williston, NY2025 gys and challenge match award$11,600apps.irs.gov
The Agricultural Society FundEast Williston, NY2025 gys and challenge match grant$11,600apps.irs.gov
Historical Society of Greater Port JeffersonPort Jefferson, NY2025 gardiner young/challenge matchArts, culture and humanities$11,245apps.irs.gov
Colonel Josiah Smith National Daughter of the American RevolutionMedford, NY2025 grant award$10,000apps.irs.gov
Conscience Point Shellfish HatcherySouthampton, NY2025 challenge match grantEnvironment$10,000apps.irs.gov
Fireboat Fire Fighter MuseumGreenport, NY2025 challenge grant match$10,000apps.irs.gov
Long Beach Historical and Preservation SocietyLong Beach, NY2025 challenge grant match$10,000apps.irs.gov
North Sea Community School House AssociationSouthampton, NY2025 challenge match grant$10,000apps.irs.gov
Quogue Historical SocietyQuogue, NY2025 challenge grant match$10,000apps.irs.gov
Rocky Point Historical SocietyRocky Point, NY2025 challenge match grantArts, culture and humanities$10,000apps.irs.gov
University at AlbanyAlbany, NY2022 cohalan scholarship$10,000apps.irs.gov
Wainscott Heritage ProjectWainscott, NY2024 challenge grantArts, culture and humanities$10,000apps.irs.gov
Wainscott Heritage ProjectWainscott, NY2025 challenge match grantArts, culture and humanities$10,000apps.irs.gov
Whaling Museum & Education CenterCold Spring Harbor, NY2024 grant award pymt 2 of 2$8,025apps.irs.gov
Brooks Park Arts & Nature CenterEast Hampton, NY2025 challenge match grantArts, culture and humanities$7,850apps.irs.gov
Wading River Historical SocietyWading River, NY2025 gys and challenge match grant$7,070apps.irs.gov
Oyster Bay Railroad MuseumOyster Bay, NY2025 challenge grant matchArts, culture and humanities$6,923apps.irs.gov
Bridgehampton MuseumBridgehampton, NY2025 gys and exhibit award$6,600apps.irs.gov
Long Island Children's MuseumGarden City, NYOther grant$5,500apps.irs.gov
Ma's House & Bipoc Art StudioSouthampton, NY2026 artist residency program$5,000apps.irs.gov
New York State Archives PartnershipAlbany, NYSponsorship conference$5,000apps.irs.gov
Suffolk County Vanderbilt MuseumCenterport, NY2025 fellowshipArts, culture and humanities$5,000apps.irs.gov
University of Massachusettes Office of the BursarAmherst, MACohalan scholarship$5,000apps.irs.gov
Stony Brook UniversityStony Brook, NY2023 cohalan scholar$4,036apps.irs.gov
Fire Island Lighthouse Preservation Society IncCaptree Island, NY2025 grant award$3,000apps.irs.gov
Davis Town Meeting House SocietyCoram, NY2025 challenge match grantArts, culture and humanities$2,804apps.irs.gov
Caumsett FoundationHuntington, NY2025 gardiner young scholarshipEnvironment$1,600apps.irs.gov
Cold Spring Harbor LaboratoryCold Spring Harbor, NYGardiner young scholarshipScience and technology$1,600apps.irs.gov
Friends of Rock Hall MuseumLawrence, NY2025 gardiner young scholar$1,600apps.irs.gov
Garden City Historical SocietyGarden City, NY2025 gardiner young scholarArts, culture and humanities$1,600apps.irs.gov
Greater Patchogue Historical SocietyPatchogue, NY2025 gardiner young scholar$1,600apps.irs.gov
Heckscher Museum of ArtHuntington, NY2025 gardiner young scholar$1,600apps.irs.gov
Historical Society of Islip HamletIslip, NY2025 gardiner young scholarArts, culture and humanities$1,600apps.irs.gov
Lake Ronkonkoma Historical SocietyLake Ronkonkoma, NY2025 gardiner young scholar$1,600apps.irs.gov
Lindenhurst Historical SocietyLindenhurst, NY2025 gardiner young scholarArts, culture and humanities$1,600apps.irs.gov
Oysterponds Historical SocietyOrient, NY2025 gardiner young scholar$1,600apps.irs.gov
Roslyn Landmark SocietyRoslyn, NY2025 gardiner young scholar$1,600apps.irs.gov
Shelter Island Historical SocietyShelter Island, NY2025 gardiner young scholar$1,600apps.irs.gov
Southold Historical MuseumSouthold, NY2025 gardiner young scholar$1,600apps.irs.gov
Stirling Historical Scociety of GreenportGreenport, NY2025 gardiner young scholar$1,600apps.irs.gov
Village of Babylon Historical and Preservation SocietyBabylon, NY2025 gardiner young scholarArts, culture and humanities$1,600apps.irs.gov
Walt Whitman Birthplace AssociationHuntington, NY2025 gardiner young scholar$1,600apps.irs.gov
Waterfront MuseumBrooklyn, NY2025 gys and grant awardArts, culture and humanities$1,600apps.irs.gov
Yaphank Historical SocietyYaphank, NY2025 gardiner young scholarArts, culture and humanities$1,600apps.irs.gov

Grants paid, tax year ended December 2024

From the Form 990-PF filed August 13, 2025, IRS object ID 202522259349100502. It reported $6,448,848 in grants paid; 91 grants to organizations are listed.

RecipientLocationPurposeCauseAmountSource
New York Historical SocietyNew York, NY2024 grant awardArts, culture and humanities$1,500,000apps.irs.gov
Cold Spring Harbor LaboratoryCold Spring Harbor, NY2024 grant awardScience and technology$500,000apps.irs.gov
Cooper Union for the Adv of ScienceNew York, NY2022 grant award$392,000apps.irs.gov
PBS FoundationArlington, VA2023 grant awardArts, culture and humanities$333,334apps.irs.gov
National Trust for Historic PresvWashingon, DC2023 grant award$333,333apps.irs.gov
Cooper Union for the Adv of ScienceNew York, NY2022 grant 3 of 3, and 2024 grant$250,000apps.irs.gov
Gilder Lehrman Inst of American HisNew York, NY2020 grant award$250,000apps.irs.gov
Green-Wood Historic FundBrooklyn, NY2023 grant awardArts, culture and humanities$250,000apps.irs.gov
Laguardia Community College FNDLong Island City, NY2021 grant award$250,000apps.irs.gov
Long Island UniversityGreenvale, NY2022 grant award$250,000apps.irs.gov
The History MakersChicago, IL2023 grant award$250,000apps.irs.gov
Mystic Seaport Museum IncMystic, CT2023 grant awardArts, culture and humanities$197,534apps.irs.gov
St Thomas Aquinas CollegeSparkill, NY2023 grant awardEducation$114,812apps.irs.gov
New York Historical SocietyNew York, NY2022 grant awardArts, culture and humanities$110,844apps.irs.gov
Brooklyn Public LibraryBrooklyn, NY2023 grant awardEducation$105,500apps.irs.gov
Research Foundation GeneseoAlbany, NY2021 grant award$100,874apps.irs.gov
New York UniversityNew York, NY2024 grant awardEducation$100,000apps.irs.gov
The Caumsett Foundation IncHuntington, NY2024 grant awardEnvironment$85,824apps.irs.gov
Guild Hall of East Hampton IncEast Hampton, NY2023 grant awardArts, culture and humanities$70,419apps.irs.gov
Greater Hudson Heritage NetworkElmsford, NY2023 grant award$62,000apps.irs.gov
Nassau County Museum of Fine ArtRoslyn Harbor, NY2024 grant award$55,205apps.irs.gov
Jewish Historical Society of Long IslandGreenvale, NY2024 grant award$52,000apps.irs.gov
Queens MuseumQueens, NY2024 gys and grant award$51,600apps.irs.gov
Montauk Historical SocietyMontauk, NY2024 gardiner young scholarArts, culture and humanities$51,006apps.irs.gov
Long Island Children's MuseumGarden City, NY2024 grant award$50,000apps.irs.gov
Museum Association of New YorkTroy, NY2022 grant awardArts, culture and humanities$50,000apps.irs.gov
New York State Archives PTR TrustAlbany, NY2022 grant award$50,000apps.irs.gov
Preservation League of NysAlbany, NY2022 grant award$45,000apps.irs.gov
Webb InstituteGlen Cove, NY2023 grant awardEducation$37,500apps.irs.gov
Long Island Library Resources CouncilBellport, NY2024 grant awardEducation$36,729apps.irs.gov
Byrd Hoffman Water Mill FoundationWatermill, NY2024 grant awardArts, culture and humanities$35,688apps.irs.gov
Long Island Museum of American Art History and CarriagesStony Brook, NY2024 grant awardArts, culture and humanities$34,001apps.irs.gov
The ChurchSag Harbor, NY2024 grant award$25,000apps.irs.gov
Long Island Seaport and Eco CenterPort Jefferson, NY2024 grant award$24,568apps.irs.gov
Sons of the Revolution of the State of New YorkNew York, NY2024 grant award$22,994apps.irs.gov
Friends of Raynham HallOyster Bay, NY2024 grant award$22,139apps.irs.gov
Waterfront MuseumBrooklyn, NY2024 gys and grant awardArts, culture and humanities$15,320apps.irs.gov
Messiah UniversityMechanicburg, PAGrant awardEducation$14,251apps.irs.gov
Historical Society of Greater Port JeffersonPort Jefferson, NY2024 gardiner young/challenge matchArts, culture and humanities$12,033apps.irs.gov
Oyster Bay Railroad MuseumOyster Bay, NY2024 gys and challenge matchArts, culture and humanities$11,700apps.irs.gov
Quogue Historical SocietyQuogue, NY2024 gys and challenge match$11,600apps.irs.gov
Rocky Point Historical SocietyRocky Point, NY2024 gys and challenge grantArts, culture and humanities$11,600apps.irs.gov
Cow Neck Peninsula Histocial SocPort Washington, NY2024 grant award$10,340apps.irs.gov
Conscience Point Shellfish HatcherySouthampton, NY2024 challenge match grantEnvironment$10,000apps.irs.gov
Long Beach Historical and Preservation SocietyLong Beach, NY2024 challenge grant match$10,000apps.irs.gov
New York State Archives PartnershipAlbany, NYSponsorship conference$10,000apps.irs.gov
North Sea Community School House AssociationSouthampton, NY2024 challenge match grant$10,000apps.irs.gov
Sag Harbor Historical MuseumSag Harbor, NY2024 grant award$10,000apps.irs.gov
The Victor D'amico Institute of ArtAmaganset, NY2024 challenge match grant$10,000apps.irs.gov
University at AlbanyAlbany, NY2022 cohalan scholarship$10,000apps.irs.gov
Fireboat Fire Fighter MuseumGreenport, NY2024 challenge grant match$9,303apps.irs.gov
Long Island Maritime MuseumWest Sayville, NY2024 grant awardArts, culture and humanities$9,277apps.irs.gov
Wading River Historical SocietyWading River, NY2024 gys and challenge match$9,122apps.irs.gov
Historical Society of Islip HamletIslip, NY2024 challege match awardArts, culture and humanities$8,693apps.irs.gov
Mattituck Laurel Historical SocietyMattituck, NY2024 gys and 2024 challenge grant$8,110apps.irs.gov
Whaling Museum & Education CenterCold Spring Harbor, NY2024 grant award$8,025apps.irs.gov
Association of Public Historians of NysBabylon, NY2024 grant award$8,000apps.irs.gov
Greater Westhampton Historical MuseumsWesthampton Beach, NY2024 grant award$7,675apps.irs.gov
Greater Patchogue Foundation IncPatchogue, NY2024 challenge match grantArts, culture and humanities$7,295apps.irs.gov
Miller Place Mount Sinai Historical SocietyMiller Place, NY2024 challege match$5,500apps.irs.gov
Dartmouth CollegeHanover, NH2024 cohalan scholarship$5,000apps.irs.gov
Friends of Rock Hall MuseumLawrence, NY2024 grant award$5,000apps.irs.gov
Greater Hudson Heritage NetworkElmsford, NY2024 conference sponsor$3,000apps.irs.gov
Hampton Bays Lions ClubHampton Bays, NY2024 donation$3,000apps.irs.gov
Garden City Historical SocietyGarden City, NY2024 gys and grant awardArts, culture and humanities$2,600apps.irs.gov
Harold HolzerNew York, NYLiu honorarium fee$2,500apps.irs.gov
Bellport-Brookhaven Historical SocietyBellport, NY2024 gardiner young scholar grantArts, culture and humanities$1,600apps.irs.gov
Bridgehampton MuseumBridgehampton, NY2024 gardiner young scholar$1,600apps.irs.gov
Celebrate St James Past Present FutureSt James, NY2024 gysArts, culture and humanities$1,600apps.irs.gov
East End Seaport Museum and Marine FoundationGreenport, NY2024 gardiner young scholar$1,600apps.irs.gov
East Hampton Historical SocietyEast Hampton, NY2024 gardiner young scholar$1,600apps.irs.gov
Friends of Old Bethpage RestorationEast Williston, NY2024 gardiner young scholar$1,600apps.irs.gov
Hallockville Museum FarmRiverhead, NY2024 gardiner young scholar$1,600apps.irs.gov
Heckscher MuseumHuntington, NY2024 gardiner young scholarArts, culture and humanities$1,600apps.irs.gov
Huntington Historical SocietyHuntington, NY2024 gardiner young scholarArts, culture and humanities$1,600apps.irs.gov
Ketcham Inn Foundation IncCenter Moriches, NY2024 gardiner young scholar$1,600apps.irs.gov
Lake Ronkonkoma Historical SocietyLake Ronkonkoma, NY2024 gardiner young scholar$1,600apps.irs.gov
Ma's House & Bipoc Art StudioSouthampton, NY2024 gardiner young scholar$1,600apps.irs.gov
Oysterponds Historical SocietyOrient, NY2024 gardiner young scholar$1,600apps.irs.gov
Preservation Long IslandCold Spring Harbor, NY2024 gardiner young scholar$1,600apps.irs.gov
Raynham Hall MuseumOyster Bay, NY2024 gardiner young scholar$1,600apps.irs.gov
Roslyn Landmark SocietyRoslyn, NY2024 gardiner young scholar$1,600apps.irs.gov
Shelter Island Historical SocietyShelter Island, NY2024 gardiner young scholar$1,600apps.irs.gov
Southold Historical MuseumSouthold, NY2024 gardiner young scholar$1,600apps.irs.gov
Stirling Historical Scociety of GreenportGreenport, NY2024 gardiner young scholar$1,600apps.irs.gov
The Agricultural Society FundEast Williston, NY2024 gardiner young scholar$1,600apps.irs.gov
The Jazz LoftStony Brook, NY2024 gardiner young scholarArts, culture and humanities$1,600apps.irs.gov
Three Village Historical SocietySetauket, NY2024 gardiner young scholarArts, culture and humanities$1,600apps.irs.gov
Village of Babylon Historical and Preservation SocietyBabylon, NY2024 gardiner young scholarArts, culture and humanities$1,600apps.irs.gov
Walt Whitman Birthplace AssociationHuntington, NY2024 gardiner young scholar$1,600apps.irs.gov
Yaphank Historical SocietyYaphank, NY2024 gardiner young scholarArts, culture and humanities$1,600apps.irs.gov

Causes funded

From grants whose recipient has a cause.

CauseGranted
Arts, culture and humanities$3,877,304
Science and technology$1,001,600
Education$642,452
Environment$107,424

States funded

Recipient stateGranted
New York$8,759,513
Virginia$666,667
District of Columbia$666,666
Connecticut$296,301
Illinois$250,000
New Hampshire$20,000
Pennsylvania$14,251
Massachusetts$5,000

Also on SpecStream

Updated August 25, 2026. 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.