SAMUEL N & MARY CASTLE FDN
Honolulu, HI, US
•
501(c)3
•
EIN
99-6003321
•
•
Open for Solicitation
Private Foundation
Family Foundation
Regional Funder
Honolulu, HI, US
•
501(c)3
•
EIN
99-6003321
•
•
Open for Solicitation
Private Foundation
Family Foundation
Regional Funder
AI Summary
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The Samuel N & Mary Castle Foundation is a 501(c)(3) grantmaking organization that provided a total of $1.9 million in grants to 39 grantees in 2024. Primarily focusing on Hawaii, Illinois, and California, the foundation is currently open for unsolicited proposals. Prospective applicants are encouraged to review the 'How to Apply' section on the foundation's profile page to assess their fit for funding opportunities.
Cause Areas
1
Foundations
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Explore this org's ecosystem
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Grantee
Total Funding
Funding Share

UNIVERSITY OF HAWAII FOUNDATION
$526.2K
5%
HAWAII CHILDREN'S ACTION NETWORK
$300K
3%
Erikson Institute
$278.3K
3%
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Total No. of Grants
1
Median 1st year grant
$50K
Median 2nd year grant
$50K
Top 3 Grants
Matched grants only
Grantee
Grant Size
Frequently Asked Questions
Can I submit an unsolicited grant proposal to SAMUEL N & MARY CASTLE FDN?
Yes. SAMUEL N & MARY CASTLE FDN accepts unsolicited proposals for funding. You can find details in the How to Apply section on this profile or by visiting their website.
Where does SAMUEL N & MARY CASTLE FDN give?
SAMUEL N & MARY CASTLE FDN primarily gives to organizations located in Hawaii, Illinois, and California. These states represent the largest share of the foundation’s grantmaking by dollars awarded. Additional geographic details are available to registered users.
What size are SAMUEL N & MARY CASTLE FDN’s grants?
The largest share of grants from SAMUEL N & MARY CASTLE FDN fall in the $1 million to $5 million range. The median first-year grant is about $50 thousand. More detailed grant size data is available to registered users.
How many grants does SAMUEL N & MARY CASTLE FDN make each year?
In 2024, SAMUEL N & MARY CASTLE FDN awarded about 1 grants, totaling nearly $1.9 million. More detailed grant metrics are available to registered users.
Who did SAMUEL N & MARY CASTLE FDN fund recently?
In 2024, SAMUEL N & MARY CASTLE FDN awarded grants to about 40 grantees. Recent grantees include UNIVERSITY OF HAWAII FOUNDATION, HAWAII CHILDREN'S ACTION NETWORK, and Erikson Institute. More detailed information on all recent recipients is available to registered users.
How do we apply to SAMUEL N & MARY CASTLE FDN?
You can find details on how to apply in the How to Apply section on this profile or by visiting SAMUEL N & MARY CASTLE FDN’s website.
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