Private foundation · EIN 81-2450108 · Eden Prairie, Minnesota · Human services

Sandcastle Foundation

Should you approach them?

Don't send a cold proposal. The foundation reports that it only gives to preselected organizations; an introduction through a current grantee or board member is the realistic route.

From the 2025 Form 990-PF: 41 grants paid, $940K total, median $15K. 59% of grants stayed in Minnesota.

Accepts applications
No
per 990-PF Part XV
Grants paid, 2025
41
$940K
Median grant
$15K
Stays in MN
59%
of grants
Deadline
—
Assets
$11M

Grants paid in 2025

41 grants, all shown · from Form 990-PF Part XV

RecipientPurposeAmount
University of St ThomasSt Paul, MNUnrestricted charitable grant$75K
Ujamaa PlaceSt Paul, MNUnrestricted charitable grant$70K
African American Child Wellness InstituteMinneapolis, MNUnrestricted charitable grant$50K
Washington UniversitySt Louis, MOUnrestricted charitable grant$50K
Boys and Girls Clubs of the Twin CitiesSt Paul, MNUnrestricted charitable grant$40K
Crescent CoveBrooklyn Center, MNUnrestricted charitable grant$40K
Constellation FundMinneapolis, MNUnrestricted charitable grant$35K
AeonMinneapolis, MNUnrestricted charitable grant$30K
Eden Prairie Community FoundationEden Prairie, MNUnrestricted charitable grant$30K
Planned Parenthood of Minnesota NorthSt Paul, MNUnrestricted charitable grant$30K
Summit Academy OicMinneapolis, MNUnrestricted charitable grant$25K
Veap IncBloomington, MNUnrestricted charitable grant$25K
Achieve Twin CitiesEagan, MNUnrestricted charitable grant$20K
Beacon Interfaith HousingSt Paul, MNUnrestricted charitable grant$20K
Forest Park Forever IncSt Louis, MTUnrestricted charitable grant$20K
Legal Rights Center IncorporatedMinneapolis, MNUnrestricted charitable grant$20K
People Reaching Out to Other PeopleEden Prairie, MNUnrestricted charitable grant$20K
Simpson Housing Services IncMinneapolis, MNUnrestricted charitable grant$20K
Twin Cities Habitat for HumanitySt Paul, MNUnrestricted charitable grant$20K
YMCAMinneapolis, MNUnrestricted charitable grant$20K
American Civil Liberties Union Foundation IncNew York, NYUnrestricted charitable grant$15K
Can Do CaninesNew Hope, MNUnrestricted charitable grant$15K
Cardinal Glennon Children's HospitalSt Louis, MOUnrestricted charitable grant$15K
Domestic Abuse ProjectMinneapolis, MNUnrestricted charitable grant$15K
Make a Wish FoundationPhoenix, AZUnrestricted charitable grant$15K
National Alliance for Research on Schizophrenia and DepressionNew York, NYUnrestricted charitable grant$15K
Ocean Blue Project IncCorvallis, ORUnrestricted charitable grant$15K
Paws ChicagoChicago, ILUnrestricted charitable grant$15K
Planned Parenthood Great RiversSt Louis, MOUnrestricted charitable grant$15K
President and Trustees of BatesLewiston, MEUnrestricted charitable grant$15K
St Jude Childrens Research HospitalMemphis, TNUnrestricted charitable grant$15K
The Curators of the University of MissouriColumbia, MOUnrestricted charitable grant$15K
The Saint Louis Zoo FoundationSt Louis, MTHeim wild care park pledge$15K
Washburn Center for ChildrenMinneapolis, MNUnrestricted charitable grant$15K
Wild Canid Survival & ResearchEureka, MTUnrestricted charitable grant$15K
American Immigration CouncilWashington, DCUnrestricted charitable grant$10K
Americans for Immigrant JusticeMiami, FLUnrestricted charitable grant$10K
Children's Hospital and Clinics of MinnesotaMinneapolis, MNUnrestricted charitable grant$10K
Hennepin Theatre TrustMinneapolis, MNUnrestricted charitable grant$10K
Quest Scholars ProgramPalo Alto, CAUnrestricted charitable grant$10K
Minnesota Orchestral AssociationMinneapolis, MNUnrestricted charitable grant$5,000

By state: Minnesota 24 · Missouri 4 · Montana 3 · New York 2 · Arizona 1 · Oregon 1

About this foundation

Sandcastle Foundation is a private grantmaking foundation in Eden Prairie, Minnesota, administered in care of Brenda K Heim, tax-exempt since 2018. Private foundations must pay out roughly 5% of their assets each year, mostly as grants to 501(c)(3) public charities.

All filings on ProPublica

Does Sandcastle Foundation accept grant applications?

No. On its 2025 Form 990-PF the foundation checked that it only makes contributions to preselected organizations. Look for an introduction through a current grantee.

How much does Sandcastle Foundation give each year?

In tax year 2025 it paid $940K across 41 grants, a median of $15K.

Where does Sandcastle Foundation give?

Minnesota (24 grants), Missouri (4 grants), Montana (3 grants) and elsewhere, per its latest filing.

More foundations near Eden Prairie that accept applications

All in Minnesota
FoundationBased inGrants paidMedian grantAccepts applicationsAssets
Margaret a Cargill Foundationsince 2014 Eden Prairie, MN $147M312 grants · 2024 $250KPreselected only $3.3B
United Health Foundationsince 1999 Eden Prairie, MN $50M57 grants · 2024 $250KPreselected only $80M
Flaherty Family Foundationsince 1991 Eden Prairie, MN $1.3M4 grants · 2024 $102KPreselected only $23M
Carl and Aune Lind Family Foundationsince 1984 Eden Prairie, MN $302K29 grants · 2024 $5,000Yes $8.3M
Jeff and Julie Verdoorn Foundationsince 2025 Eden Prairie, MN — —Preselected only $7.2M
William C Schmoker Family Foundationsince 1994 Eden Prairie, MN $447K6 grants · 2025 $38KYes $6.9M
Butzow Family Foundationsince 2007 Eden Prairie, MN $380K22 grants · 2025 $15KPreselected only $6.3M
Anderson Foundationsince 1999 Eden Prairie, MN $1.0M53 grants · 2025 $10KPreselected only $5.2M
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