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Data / Foundation grants / The Patricia M and Robert H Martinsen Foundation

The Patricia M and Robert H Martinsen Foundation: 21 grants to organizations, $402,900 (tax year ended December 2025)

The Patricia M and Robert H Martinsen Foundation, a private foundation in Ridgefield, CT, paid 21 grants to organizations totaling $402,900 in its tax year ended December 2025, according to its Form 990-PF filed with the IRS on May 18, 2026. The largest was $300,000 to Rvna in Ridgefield, CT for medical purposes.

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
276961238
Based in
Ridgefield, CT
Assets
$1,119,995
Grants paid
$402,900
Tax year ended
December 2025

Grants paid, tax year ended December 2025

From the Form 990-PF filed May 18, 2026, IRS object ID 202611389349100206. It reported $402,900 in grants paid; 21 grants to organizations are listed.

RecipientLocationPurposeCauseAmountSource
RvnaRidgefield, CTMedical purposes$300,000apps.irs.gov
Colgate UniversityHamilton, NYEducational purposes$100,000apps.irs.gov
Leadership InstituteNew York, NYEducational purposes$400apps.irs.gov
Alzheimer's Disease ResearchClarksburg, MDMedical purposes$300apps.irs.gov
Claremont InstituteClaremont, CASocial purposes$200apps.irs.gov
Founders HallRidgefield, CTSocial purposes$200apps.irs.gov
Judicial WatchWashington, DCSocial purposesPublic and societal benefit$200apps.irs.gov
Lounsbury HouseRidgefield, CTSocial purposes$200apps.irs.gov
Massachusetts General Hospital Cardiovascular Research CenterBoston, MAMedical purposes$200apps.irs.gov
American Cancer SocietyKennesaw, GAMedical purposes$100apps.irs.gov
American Cornerstone InstituteWashington, DCSocial purposesEducation$100apps.irs.gov
American Parkinsons Disease AssociationBoston, MAMedical purposes$100apps.irs.gov
American Red Cross of ConnecticutFarmington, CTMedical purposes$100apps.irs.gov
Disabled Vets National FoundationLanham, MDSocial purposes$100apps.irs.gov
Heritage FoundationWashington, DCEducational purposesPublic and societal benefit$100apps.irs.gov
National Law Enforcement Officers Memorial FundWashington, DCSocial purposes$100apps.irs.gov
Salvation ArmyAlexandria, VASocial purposes$100apps.irs.gov
State Policy NetworkArlington, VASocial purposesCivil rights, social action and advocacy$100apps.irs.gov
Tax FoundationWashington, DCSocial purposesPublic and societal benefit$100apps.irs.gov
Tunnel To Towers FoundationStaten Island, NYSocial purposes$100apps.irs.gov
Us Olympic CommitteeColorado Springs, COSocial purposes$100apps.irs.gov

Grants paid, tax year ended December 2024

From the Form 990-PF filed May 16, 2025, IRS object ID 202501369349101100. It reported $80,700 in grants paid; 19 grants to organizations are listed.

RecipientLocationPurposeCauseAmountSource
Ridgebury Congregational ChurchRidgefield, CTSocial purposes$75,100apps.irs.gov
Danbury Hospital & New Milford Hospital FoundationNew York, NYMedical purposes$1,000apps.irs.gov
Phi Gamma Delta Educational FoundationLexington, KYSocial purposes$1,000apps.irs.gov
The HSS FoundationChicago, ILSocial purposes$1,000apps.irs.gov
Judicial WatchWashington, DCSocial purposesPublic and societal benefit$300apps.irs.gov
Tunnel To Towers FoundationStaten Island, NYSocial purposes$300apps.irs.gov
Alzheimer's Disease ResearchClarksburg, MDMedical purposes$200apps.irs.gov
American Red Cross of ConnecticutFarmington, CTMedical purposes$200apps.irs.gov
Founders HallRidgefield, CTSocial purposes$200apps.irs.gov
Heritage FoundationWashington, DCEducational purposesPublic and societal benefit$200apps.irs.gov
Ridgefield Visiting Nurse AssociationRidgefield, CTMedical purposes$200apps.irs.gov
Salvation ArmyAlexandria, VASocial purposes$200apps.irs.gov
Us Olympic CommitteeColorado Springs, COSocial purposes$200apps.irs.gov
Disabled Vets National FoundationLanham, MDSocial purposes$100apps.irs.gov
Leadership InstituteNew York, NYEducational purposes$100apps.irs.gov
Lounsbury HouseRidgefield, CTSocial purposes$100apps.irs.gov
State Policy NetworkArlington, VASocial purposesCivil rights, social action and advocacy$100apps.irs.gov
Tax FoundationWashington, DCSocial purposesPublic and societal benefit$100apps.irs.gov
Whitney Museum of ArtNew York, NYSocial purposes$100apps.irs.gov

Causes funded

From grants whose recipient has a cause.

States funded

Recipient stateGranted
Connecticut$376,300
New York$102,000
District of Columbia$1,200
Kentucky$1,000
Illinois$1,000
Maryland$700
Virginia$500
Massachusetts$300

Also on SpecStream

Updated May 18, 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.