Samuel N & Mary Castle Fdn
Honolulu, HI · EIN 99-6003321. Reported 112 grants totalling $7,922,865 to 61 recipients across tax years 2021-2024. This foundation did not tell the IRS it funds only preselected organizations.
Does this foundation accept applications?
Yes -- on its own tax return. Form 990-PF asks every private foundation whether it makes grants only to organizations it selects itself. Of the 91,758 foundations in our data that made a grant and answered, 78% said yes -- and applying to those is wasted effort. Samuel N & Mary Castle Fdn did not check that box on its most recent filing, which puts it in the minority that is at least open to being approached.
How big are its grants?
The median grant is $25,000. Half of everything it gave fell between $15,000 and $50,000; the smallest was $3,000 and the largest $1,936,030. If you are asking for materially more than the top of that range, you are asking the wrong foundation.
Every organization it funded
This is the complete list from its filings, largest first. Recipients are grouped by name and state as they were written on the returns, so an organization entered under two different names appears twice. Years funded is the number of separate tax years in which that name received money.
| Organization | Location | Total received | Grants | Years funded | Last |
|---|---|---|---|---|---|
| See Attached Statement | Honolulu, HI | $3,789,442 | 2 | 2 | 2024 |
| University of Hawaii Foundation | Honolulu, HI | $335,000 | 4 | 2 | 2022 |
| Erikson Institute | Chicago, IL | $278,288 | 3 | 2 | 2022 |
| Hawaii Childrens Action Network | Honolulu, HI | $200,000 | 2 | 2 | 2022 |
| Catholic Diocese of Honolulu | Honolulu, HI | $185,000 | 3 | 2 | 2022 |
| Catholic Charities | Honolulu, HI | $160,000 | 3 | 2 | 2022 |
| Chaminade University of Honolulu | Honolulu, HI | $150,000 | 4 | 2 | 2022 |
| Child & Family Service | Ewa Beach, HI | $150,000 | 2 | 2 | 2022 |
| Collaborative Support Services | Honolulu, HI | $125,000 | 3 | 2 | 2022 |
| Imua Family Services | Kahului, HI | $125,000 | 2 | 2 | 2022 |
| Maui Family Support Services | Wailuku, HI | $125,000 | 2 | 2 | 2022 |
| The Salvation Army | Honolulu, HI | $115,000 | 3 | 2 | 2022 |
| Partners in Development Foundation | Honolulu, HI | $110,000 | 2 | 2 | 2022 |
| Parents and Children Together | Honolulu, HI | $101,008 | 2 | 2 | 2022 |
| Department of Education | Honolulu, HI | $100,000 | 1 | 1 | 2022 |
| Family Support Hawaii | Kailuakona, HI | $100,000 | 2 | 2 | 2022 |
| Punahou School | Honolulu, HI | $100,000 | 1 | 1 | 2022 |
| National Louis University | Wheeling, IL | $87,840 | 1 | 1 | 2021 |
| YWCA of Hawaii Island | Hilo, HI | $80,000 | 3 | 2 | 2022 |
| Hanalani Schools | Mililani, HI | $65,000 | 3 | 2 | 2022 |
| Hawaii Foodbank | Honolulu, HI | $65,000 | 3 | 2 | 2022 |
| Mililani Presbyterian Church Pre-School | Mililani, HI | $65,000 | 3 | 2 | 2022 |
| Kokua Kalihi Valley Comprehensive Family Svcs | Honolulu, HI | $60,000 | 1 | 1 | 2022 |
| Rainbow School | Kahuku, HI | $60,000 | 3 | 2 | 2022 |
| Kcaa Pre-Schools of Hawaii | Honolulu, HI | $59,000 | 3 | 2 | 2022 |
| Family Hui Hawaii | Honolulu, HI | $50,000 | 1 | 1 | 2022 |
| Hawaii Community Foundation | Honolulu, HI | $50,000 | 1 | 1 | 2021 |
| Inpeace | Kapolei, HI | $50,000 | 1 | 1 | 2021 |
| Institute for Native Pacific Education & Culture (inpeace) | Kapolei, HI | $50,000 | 1 | 1 | 2022 |
| Kapiolani Health Foundation | Honolulu, HI | $50,000 | 1 | 1 | 2022 |
| Kauai Christian Academy | Kilauea, HI | $50,000 | 1 | 1 | 2022 |
| Montessori School of Maui | Makawao, HI | $50,000 | 1 | 1 | 2022 |
| Wailuku Union Church Pre-School | Wailuku, HI | $46,600 | 3 | 2 | 2022 |
| Ae Kamalii Pre-School | Lihue, HI | $45,000 | 3 | 2 | 2022 |
| Good Shepherd Lutheran Church | Honolulu, HI | $40,000 | 2 | 2 | 2022 |
| Na Kamali'i Hoaloha | Kaunakakai, HI | $39,100 | 3 | 2 | 2022 |
| Hanahau'oli Schools | Honolulu, HI | $37,245 | 1 | 1 | 2022 |
| Aloha School Early Learning Center of Hanalei | Hanalei, HI | $37,000 | 2 | 1 | 2021 |
| Hui No'eau Visual Arts Center | Makawao, HI | $34,000 | 2 | 2 | 2022 |
| Friends of the Future | Kamuela, HI | $30,000 | 1 | 1 | 2022 |
| Kahului Baptist Preschool | Kahului, HI | $30,000 | 2 | 2 | 2022 |
| Seagull Schools Inc | Kailua, HI | $30,000 | 2 | 2 | 2022 |
| Tsne Missionworks | Boston, MA | $30,000 | 1 | 1 | 2021 |
| Waikiki Community Center | Honolulu, HI | $30,000 | 2 | 2 | 2022 |
| Montessori Community School | Honolulu, HI | $29,000 | 2 | 2 | 2022 |
| Keiki O Ka 'aina Pre-School | Honolulu, HI | $25,800 | 1 | 1 | 2021 |
| University of Hawaii Office of Research Services | Honolulu, HI | $25,428 | 1 | 1 | 2022 |
| First United Methodist Church Preschool | Honolulu, HI | $25,000 | 2 | 1 | 2022 |
| Hongwanji Mission School | Honolulu, HI | $25,000 | 1 | 1 | 2021 |
| Kawaiahao Church | Honolulu, HI | $25,000 | 1 | 1 | 2022 |
| Makiki Christian Church Pre-School | Honolulu, HI | $25,000 | 1 | 1 | 2022 |
| Mililani Baptist Church Pre-School | Mililani, HI | $25,000 | 1 | 1 | 2021 |
| Saint Mark Lutheran School | Kaneohe, HI | $25,000 | 1 | 1 | 2022 |
| Trinity Christian School | Kailua, HI | $25,000 | 1 | 1 | 2021 |
| Trinity Lutheran School | Wahiawa, HI | $25,000 | 1 | 1 | 2021 |
| Hawaii Alliance of Nonprofit Organizations | Honolulu, HI | $20,114 | 1 | 1 | 2021 |
| Honolulu Theatre for Youth | Honolulu, HI | $20,000 | 2 | 2 | 2022 |
| Chaminade University Montessori Lab School | Honolulu, HI | $15,000 | 1 | 1 | 2022 |
| Hawaii Association of Independent | Honolulu, HI | $10,000 | 1 | 1 | 2022 |
| Manoa Heritage Center | Honolulu, HI | $5,000 | 1 | 1 | 2022 |
| Hawaii Association of Independent Schools | Honolulu, HI | $3,000 | 1 | 1 | 2021 |
31 of 61 (51%) received money in more than one year over the 4 years we hold.
Measured the way we measure every foundation -- what share of one year's grantees are funded again the next -- this one retains 36%, across 2 year-to-year transitions. The median foundation retains about 67%, so this one is less consistent than most. This measures how often it paid the same organizations again. It says nothing about whether it would consider a new one.
What the money was for
Taken verbatim from the purpose field of its filings. This is the closest thing to a statement of what this foundation cares about, in its own words.
- University of Hawaii Foundation
H&D MEMORIAL EARLY CHILDHOOD EDUC SCHLP AND THE MARY TENNY CASTLE MEMORIAL GRADUATE FELLOWHIP FOR 2023-24 ACAD YR - Erikson Institute
EARLY MATHEMATICS TEACHER EDUCATION PROGRAM - Department of Education
HAWAII EARLY CHILDHOOD EDUCATOR STIPEND PROGRAM - Punahou School
MARY TENNEY CASTLE SCHOLARSHIP FUND - Hawaii Childrens Action Network
ADVOCACY FOR CHILDREN TO BENEFIT CHILDREN, FAMILIES AND EARLY CHILDHOOD CARE PROVIDERS - National Louis University
HAWAII LEADERSHIP ACADEMY
What kind of organizations it funds
By the activity category the IRS assigns each recipient, for the 51 grants where we could match the recipient to a registered organization. The categories are the IRS's. The match, made from the name and address on the return, is ours.
Giving by year
| Tax year | Grants | Total | Median grant |
|---|---|---|---|
| 2021 | 57 | $2,042,742 | $25,000 |
| 2022 | 53 | $2,090,681 | $25,428 |
| 2023 | 1 | $1,853,412 | $1,853,412 |
| 2024 | 1 | $1,936,030 | $1,936,030 |
Tax years, not calendar years, and the most recent year is usually incomplete -- filings arrive about a year late, so a low final year means late paperwork rather than a foundation winding down.
Where its money goes
95% of its giving went to organizations in Hawaii. If your organization is based elsewhere, look in the recipient list for grants to your area before writing.
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Funders that support the same organizations
These funders gave to organizations this one also funded -- some private foundations, some community foundations and other grantmaking charities. Shared grantees are a sign of overlapping priorities and nothing more: they do not show that any of these funders would consider a new organization. Each page says what its filings show.
How to approach this foundation
- Check you are its size. The median grant is $25,000. A request many times that size asks for something it has rarely or never given.
- Check you are in its geography. Its giving is concentrated in Hawaii.
- Read the recipient list above for organizations like yours. If nothing on it resembles your work, that is a real answer, and a cheap one to get.
- Look up the current filing before writing. The 990-PF names the foundation's officers and, where one exists, its application procedure. We link it below.
Where these numbers come from
Everything above is taken from Samuel N & Mary Castle Fdn's own Form 990-PF filings, which the IRS publishes in bulk. We used 4 returns (tax years 2021-2024). Grant figures are from its returns. Matching recipients to registered organizations, their IRS classifications, the retention rate and the funders that support the same organizations are our own calculations, described in how we build this.
Address of record on the latest return: Po Box 3170 Dept 715, Honolulu, HI, 96802. This is the address the foundation gave the IRS; many small foundations file through an accountant or a bank trust department, so it may not be where post to a programme officer should go.
EIN 99-6003321 · See the original filings on ProPublica · How we build this
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