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
SAMUEL N & MARY CASTLE FDN is a 501(c)(3) grantmaker that reported $1.9M in grants paid to 39 grantees in filing year 2024 and is open for unsolicited proposals. Prospective applicants should review the How to Apply section of the current profile page to assess fit.
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Cause Areas
1
Foundations
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Explore this org's ecosystem
See top causes for this funder's grantees, who else funds them, and their grants.
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Grantee
Total Funding
Funding Share

UNIVERSITY OF HAWAII FOUNDATION
Honolulu, HI
$526.2K
5%
HAWAII CHILDREN'S ACTION NETWORK
HONOLULU, HI
$300K
3%
Erikson Institute
Chicago, IL
$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
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- 39 grantees
- 4 board & team members
- 8 historic 990s & financials
- 6-year operating budget trend
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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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