Samuel N & Mary Castle Foundation
Honolulu, Hawaii · EIN 996003321 · Private foundation
Samuel N & Mary Castle Foundation is a private foundation based in Honolulu, Hawaii. Its most recent IRS Form 990-PF reports $2.1M in grants paid and $37.6M in total assets. Bespoke Grants tracks 115 individual grants from this funder — $8.0M awarded across 2020–2024 — including its support for early childhood education. Below is its full funding profile.
What Samuel N & Mary Castle Foundation funds
Samuel N & Mary Castle Foundation's giving carries a documented focus on early childhood education, k-12 education.
Populations it has supported include children, low-income communities, families.
Grant history
The largest grants Bespoke Grants has on record for Samuel N & Mary Castle Foundation, by amount:
| Recipient | Location | Grant | Year |
|---|---|---|---|
| See Attached Statement SEE ATTACHED STATEMENT | Honolulu, HI | $1.9M | 2024 |
| See Attached Statement SEE ATTACHED STATEMENT | Honolulu, HI | $1.9M | 2023 |
| University of Hawaii Foundation H&D MEMORIAL EARLY CHILDHOOD EDUC SCHLP AND THE MARY TENNY CASTLE MEMORIAL GRADUATE FELLOWHIP FOR 2023-24 ACAD YR | Honolulu, HI | $125K | 2022 |
| Erikson Institute EARLY MATHEMATICS TEACHER EDUCATION PROGRAM | Chicago, IL | $110K | 2022 |
| Department of Education HAWAII EARLY CHILDHOOD EDUCATOR STIPEND PROGRAM | Honolulu, HI | $100K | 2022 |
| Hawaii Childrens Action Network OPERATING SUPPORT | Honolulu, HI | $100K | 2022 |
| Punahou School MARY TENNEY CASTLE SCHOLARSHIP FUND | Honolulu, HI | $100K | 2022 |
| Hawaii Childrens Action Network OPERATING SUPPORT | Honolulu, HI | $100K | 2020 |
| University of Hawaii Foundation SCHOLARSHIPS ON ALL 10 CAMPUSES FOR EARLY EDUCATION MAJORS | Honolulu, HI | $100K | 2020 |
| Child & Family Service EARLY PAYMENT FOR PROGRAMS STRENGTHENING THE WELLBEING OF YOUNG CHILDREN & FAMILIES | Ewa Beach, HI | $75K | 2020 |
| St Andrew's Priory School RENOVATION FOR THE QUEEN EMMA PRE-SCHOOL | Honolulu, HI | $75K | 2020 |
| Imua Family Services EARLY PAYMENT FOR PROGRAMS STRENGTHENING WELLBEING OF YOUNG CHILDREN & FAMILIES | Kahului, HI | $75K | 2020 |
| Catholic Diocese of Honolulu AUGMENTING QUALITY IN HAWAII'S INDEPENDENT PRESCHOOLS: ST. MICHAEL, ST. JOSEPH, ST. THERESA | Honolulu, HI | $75K | 2022 |
| Child & Family Service SUPPORT FOR PARENTING PROGRAMS SERVICES LOW-INCOME FAMILIES | Ewa Beach, HI | $75K | 2022 |
| Maui Family Support Services EARLY PAYMENT FOR PROGRAMS STRENGTHENING THE WELLBEING OF YOUNG CHILDREN & FAMILIES | Wailuku, HI | $70K | 2020 |
Samuel N & Mary Castle Foundation giving by year
Total grants Bespoke Grants has indexed for each filing year:
How to apply for funding from Samuel N & Mary Castle Foundation
From Samuel N & Mary Castle Foundation's IRS Form 990-PF, on how it handles applications:
Verify the current process on the foundation's own materials before sending anything.
Is Samuel N & Mary Castle Foundation the right funder for your nonprofit?
This page shows what Samuel N & Mary Castle Foundation has funded. Bespoke Grants tells you whether it fits your mission — and finds every other foundation that does. Free, no credit card.
Match my nonprofit to funders →Frequently asked questions about Samuel N & Mary Castle Foundation
- Does Samuel N & Mary Castle Foundation accept grant applications?
- Yes — Samuel N & Mary Castle Foundation's IRS filing describes an application process. Confirm the current details directly with the foundation before applying.
- What does Samuel N & Mary Castle Foundation fund?
- Samuel N & Mary Castle Foundation's grants focus on early childhood education. Recent recipients include See Attached Statement, See Attached Statement, University of Hawaii Foundation. Its full grant history is listed above.
- How much does Samuel N & Mary Castle Foundation give in grants?
- Samuel N & Mary Castle Foundation reported $2.1M in grants in its most recent IRS filing (FY2020). Across all years in our data it has awarded $8.0M over 115 grants.
- Where is Samuel N & Mary Castle Foundation located?
- Samuel N & Mary Castle Foundation is based in Honolulu, Hawaii. Its IRS employer identification number (EIN) is 996003321.
- How can I find foundations similar to Samuel N & Mary Castle Foundation?
- Bespoke Grants matches your nonprofit against 225,000+ foundations like Samuel N & Mary Castle Foundation, ranking each by how well it fits your mission, location, and budget — with the reasoning shown. It is free to search.
Find more funders like Samuel N & Mary Castle Foundation
Foundations similar to Samuel N & Mary Castle Foundation
Other Hawaii grantmakers with overlapping priorities: