Castiglione A Casauria Foundation
Castiglione A Casauria Foundation is a private foundation based in Honolulu, Hawaii. Its 2025 filing reports 23 grants totaling $195,000 to organizations in Hawaii, California, New York, and Colorado.
Castiglione A Casauria Foundation at a glance
In short: Castiglione A Casauria Foundation gave $195K across 23 grants in 2025 (avg $8K), mostly in Hawaii. 35% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $195,000
- +0.8% vs 2024
- Grants made (2025)
- 23
- +4.5% vs 2024
- Average grant
- $8,478
- -3.6% vs 2024
- Median grant
- $5,000
- Total assets
- $2,750,961
- +2.1% vs 2024
- New grantees (estimate)
- 35% first-time grantees (8 of 23, 2025; small sample)
- Primary geography
- Hawaii (86% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Castiglione A Casauria Foundation
- Accepts unsolicited proposals
- Yes
- How to Apply
-
The foundation accepts unsolicited requests. Its filing says to submit a letter stating the purpose. It does not restrict awards.
- Review Cycle
- September 30 each year. The September 30, 2026 deadline is upcoming as of September 28, 2026.
- Deadline
- September 30 each year.
- Contact
Application contact: Castiglione A Casauria Foundation
Mailing address: 600 Puuloa Road, Honolulu, HI 96819-2003
Phone: (808) 831-2500
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Castiglione A Casauria Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Holomua Collective ($50K). Together the top 10 received $168K.
Grant Size Distribution
111 grants across all recorded years
The most common grant size was under $50K: 106 grants of 111 (95%).
Geographic Focus
Where this funder awards grants
The 2025 grants were concentrated in Hawaii: 86% of grant dollars went to recipients in the state. Recipients in California received 9%, those in New York 3%, and those in Colorado 3%.
Grant Distribution by State
Share of 2025 grant dollars across all 23 itemized grants.
Cities
Is Castiglione A Casauria Foundation open to new grantees?
35%
first-time grantees, 2025
In 2025, 8 of 23 grantees (35%) were first-time recipients. With only 23 grantees, that is a small sample: one grantee more or less moves the share by about 4 points. First grants averaged $5K; repeat grants $10K. How we count
Medians: $4K first-time, $5K repeat.
- 35% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (+1%). Method
- In 2025 it paid out 100% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $157K (2021) to $197K (2023). In 2025 it made 23 grants totaling $195K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Holomua Collective Honolulu, HI | General Fund | $50,000 |
| Punahou School Honolulu, HI | General Fund | $25,000 |
| Kapiolani Health Foundation Honolulu, HI | General Fund | $20,000 |
| University of San Diego San Diego, CA | Grant | $15,000 |
| Partners in Development Honolulu, HI | Grant | $12,000 |
| Rehab Foundation Honolulu, HI | General Fund | $11,000 |
| Straub Foundation Honolulu, HI | General Fund | $10,000 |
| Honolulu Symphony Foundation Honolulu, HI | Grant | $10,000 |
| Kupu Hawaii Honolulu, HI | Grant | $10,000 |
| Belgian Sheepdog Rescue Trust Avon, NY | General Fund | $5,000 |
Ready to take the next step with Castiglione A Casauria Foundation?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $2,750,961 | $422,731 | $367,369 | $195,000 | 23 | $195,000 | $35,362 | $194,218 |
| 2024 | $2,695,598 | $344,035 | $353,434 | $193,500 | 22 | $193,500 | — | $195,057 |
| 2023 | $2,708,496 | $346,429 | $334,649 | $197,100 | 15 | $197,100 | — | $193,625 |
| 2022 | $2,691,717 | $218,053 | $355,335 | $192,800 | 25 | $192,800 | $20,367 | $197,225 |
| 2021 | $2,828,996 | $400,555 | $294,527 | $156,500 | 26 | $156,500 | $204,931 | $192,615 |
| 2020 | $2,722,968 | $168,259 | $257,340 | $158,500 | 19 | — | $72,162 | $156,370 |
Under IRS private-foundation payout rules, Castiglione A Casauria Foundation reported a distributable amount of $194K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
The foundation’s filing does not state a mission. Its 2025 grants went to organizations with varied missions. Holomua Collective says it works to make Hawaii more affordable for working families; Punahou School describes an educational mission centered on purpose and responsibility to Hawaii and the world; and Kapi'olani Health Foundation and Straub Foundation say their missions are to create a healthier Hawaii. The Honolulu Symphony Foundation says it supports the Hawaii Symphony Orchestra. Other 2025 recipients include the University of San Diego, which describes itself as a contemporary Catholic university advancing academic excellence, and Young Life, which describes its work as a ministry to adolescents.
Grantmaking
In 2025, the foundation gave $195,000 across 23 grants. Grants ranged from $500 to $50,000, with a median grant of $5,000. The largest awards included $50,000 to Holomua Collective, $25,000 to Punahou School, $20,000 to Kapiolani Health Foundation, $15,000 to the University of San Diego, and $12,000 to Partners in Development.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Cathy Toma, Brad Nicolai, and Talia Nicolai as trustees.
Castiglione A Casauria Foundation's 2025 filing lists 3 officers; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Cathy Toma
Trustee
On filings since 2020
4 hrs/week
No compensation reported
Brad Nicolai
Trustee
On filings since 2023
1 hr/week
No compensation reported
Talia Nicolai
Trustee
On filings since 2023
1 hr/week
No compensation reported
Former officers (2)
- Former: Joseph P Nicolai (2020–2023) — Trustee
- Former: Heather K L Conahan (2020–2022) — Trustee
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about Castiglione A Casauria Foundation
How much does Castiglione A Casauria Foundation give each year?
Castiglione A Casauria Foundation gave $195K across 23 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $194K across 22 grants.
What is Castiglione A Casauria Foundation's typical grant size?
Castiglione A Casauria Foundation's median grant in 2025 was $5,000, and its average grant was $8,478, across 23 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Castiglione A Casauria Foundation that year got $5K on average.
Where does Castiglione A Casauria Foundation give grants?
Castiglione A Casauria Foundation gives mostly in Hawaii: 86% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was California (9%). The most frequent recipient cities were Honolulu, HI (19 grants).
Does Castiglione A Casauria Foundation give general operating support?
Yes: 52% of Castiglione A Casauria Foundation's 2025 grants with a stated purpose (12 of 23) were for general or operating support, per its 2025 IRS Form 990-PF. Recurring purposes include "Grant" (11 grants).
Who are Castiglione A Casauria Foundation's largest grantees?
Castiglione A Casauria Foundation's largest 2025 grantees include Holomua Collective ($50,000), Punahou School ($25,000) and Kapiolani Health Foundation ($20,000), according to its 2025 IRS Form 990-PF. Together they received 49% of its itemized 2025 grant dollars.
How large is Castiglione A Casauria Foundation?
Castiglione A Casauria Foundation reported $2.8M in total assets on its 2025 IRS Form 990-PF. It paid out $195K in qualifying distributions that year, against a required minimum of $194K (roughly 5% of its investment assets).
What does Castiglione A Casauria Foundation fund?
The foundation’s filing does not state a mission. Its 2025 grants went to organizations with varied missions. See mission & focus areas ↑
How do I apply for a grant from Castiglione A Casauria Foundation?
The foundation accepts unsolicited requests. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Castiglione A Casauria Foundation's EIN?
Castiglione A Casauria Foundation's EIN (Employer Identification Number) is 94-3275970. IRS Form 990 filing data is available on this page for 2020–2025.
Does Castiglione A Casauria Foundation accept unsolicited proposals?
Yes, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 8, 2026)
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in Castiglione A Casauria Foundation's focus areas in our free grants database
Similar Funders
Funders that support many of the same organizations
Enterprise Holdings Foundation
Saint Louis, MO
The Enterprise Holdings Foundation supports charitable and educational nonprofits in communities where Enterprise Mobility operates, focusing on health, education, arts, and disaster relief; applicants must be actively supported by an Enterprise Mobility team member, spouse, or domestic partner. Giving varies widely: it reported 9,499 grants in 2024, but its 2025 filing showed one grant of $101.4 million, so that amount is not a typical award. Applications are accepted at any time through eligible Enterprise-affiliated applicants; the Foundation does not limit giving to preselected organizations.
Assets
$594.3M
Grants
1
Total Given
$101.4M
Atherton Family Foundation
Honolulu, HI
The Atherton Family Foundation funds Hawai‘i-serving nonprofits in arts and culture, community development, education, environment, health, human services, spiritual development, and youth development, with an emphasis on collaborative systems change. Its stated average awards for 2026 are about $13,500 for program grants and $41,500 for capital grants. It accepts applications through its online process at scheduled deadlines.
Assets
$82.9M
Grants
1
Total Given
$5.6M
Bank of Hawaii Charitable Fdn
Honolulu, HI
The foundation supports community development, education, human services, and arts integration, with an emphasis on strengthening low- and moderate-income communities. Its 2024 grants ranged from $1,000 to $297,500, with a median of $25,000; 95% of funding went to organizations in Hawaii. Grant requests may be submitted at any time.
Assets
$1.7M
Grants
40
Total Given
$1.4M
Central Pacific Bank Foundation
Honolulu, HI
The Central Pacific Bank Foundation funds education, health and human services, and ethnic and cultural preservation, primarily for organizations serving Hawaii. Its 2025 grants ranged from $2,500 to $110,000, with a median of $10,000; it accepts online applications from eligible 501(c)(3) organizations with a physical presence in Hawaii.
Assets
$9.9M
Grants
41
Total Given
$816K
Macnaughton Foundation
Honolulu, HI
The MacNaughton Foundation supports education, healthcare, housing, homelessness, arts, sustainability, job creation, and community development, primarily in Hawaii. Its 2025 grants ranged from $206 to $25,000, with a median of $5,000. It gives only to preselected charitable organizations and does not accept unsolicited requests.
Assets
$470K
Grants
20
Total Given
$124K
First Hawaiian Bank Foundation
Honolulu, HI
The foundation supports educational, religious, health, social, cultural, and civic organizations, primarily in Hawaii. Its 2024 grants ranged from $2,500 to $250,000, with a median of $25,000. It accepts requests by letter at any time and says it does not limit giving to preselected organizations.
Assets
$5.7M
Grants
69
Total Given
$1.8M
More similar funders
More Funders in Hawaii
Cite this profile
Grantable. (2026). Castiglione A Casauria Foundation funder profile. GrantGraph. Retrieved October 15, 2026, from https://grantable.co/funders/castiglione-a-casauria-foundation-morg_d7e5f82897e4443e9cbeb1785dcba43d
BibTeX
@misc{grantable_943275970_2026,
author = {{Grantable}},
title = {{Castiglione A Casauria Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/castiglione-a-casauria-foundation-morg_d7e5f82897e4443e9cbeb1785dcba43d},
note = {Accessed 2026-10-15. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from Castiglione A Casauria Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
Castiglione A Casauria Foundation down — hundreds of funders to go?