Alexander C Waterhouse Sr Foundation
The Alexander C Waterhouse Sr Foundation is a private foundation based in Honolulu, Hawaii. Its filings report grants to organizations including Friends of Hawaii Charities Inc and the Hawaiian Humane Society.
Alexander C Waterhouse Sr Foundation at a glance
- Total assets
- $43,312
- +0.0% vs 2022
- Latest 990 filing
- Form 990-PF, 2023 View filing
Data from IRS Form 990-PF, 2023; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Alexander C Waterhouse Sr Foundation
- How to Apply
-
The 2023 filing says giving is not restricted to preselected organizations. It instructs applicants to submit a letter with information about the organization’s tax-exempt purpose. The filing lists no restrictions on awards.
- Review Cycle
- None listed on the 2023 filing.
- Deadline
- None listed on the 2023 filing.
- Contact
Application contact: Alexander C Waterhouse Sr Foundatio
Mailing address: C/O 60 N Beretania St 904, Honolulu, HI 96817
Phone: (808) 536-5666
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Alexander C Waterhouse Sr Foundation funds
How this funder distributes its grants
Grant Size Distribution
25 grants across all recorded years
The most common grant size was under $50K: 25 grants of 25 (100%).
Geographic Focus
Where this funder awards grants
The foundation is based in Honolulu, Hawaii. Its listed 2022 grantees, Friends of Hawaii Charities Inc and the Hawaiian Humane Society, are also based in Honolulu.
Grant Distribution by State
Cities
Is Alexander C Waterhouse Sr Foundation open to new grantees?
70%
first-time grantees, 2022
In 2022, 7 of 10 grantees (70%) were first-time recipients. With only 10 grantees, that is a small sample: one grantee more or less moves the share by about 10 points. First grants averaged $7K; repeat grants $6K. How we count
Medians: $5K first-time, $5K repeat.
- 20% of 2022 grantees were also funded in 2021. Method
- In 2022 it paid out well above its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2022). 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 2022, annual grant giving ranged from $34K (2021) to $67K (2022). In 2022 it made 10 grants totaling $67K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Friends of Hawaii Charities Honolulu, HI | Not-for-Profit Program Funding | $15,000 |
| Hawaiian Humane Society Honolulu, HI | Animal Care | $10,000 |
| Iolani School Honolulu, HI | Educational Program | $10,000 |
| Safe Ride Hawaii Honolulu, HI | Drunk Driving Prevention | $10,000 |
| Uh Foundation Honolulu, HI | Educational Program | $5,000 |
| New Life Church Honolulu, HI | Religious Program | $5,000 |
| Hawaii Prepatory Academy Kamuela, HI | Educational Program | $5,000 |
| YMCA Mililani West Oahu Mililani, HI | Youth Development | $4,000 |
| Winners Camp Foundation Honolulu, HI | Educational Program | $2,000 |
| Roosevelt Alumni Foundation Honolulu, HI | Educational Program | $1,000 |
Ready to take the next step with Alexander C Waterhouse Sr 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 |
|---|---|---|---|---|---|---|---|---|
| 2023 | $43,312 | — | — | — | — | — | — | $2,133 |
| 2022 | $43,312 | $29,883 | $76,846 | $67,000 | 10 | $70,000 | $28,084 | $3,916 |
| 2021 | $90,275 | $16,517 | $40,474 | $34,000 | 7 | $35,500 | $13,292 | $7,510 |
| 2020 | $114,232 | $-2,195 | $46,778 | $39,000 | 8 | — | $616 | $8,306 |
Under IRS private-foundation payout rules, Alexander C Waterhouse Sr Foundation reported a distributable amount of $2K for 2023 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
No mission statement for the foundation is provided. Its 2022 grants included support for Friends of Hawaii Charities Inc, whose stated mission is to generate funds for qualifying Hawaii nonprofits benefiting women, children, youth, and people in need, primarily in areas including intervention and health. The Hawaiian Humane Society states that it works to improve animal welfare on Oahu through animal care, education, legislation, and prevention, and to promote the human-animal bond and humane treatment of animals.
Grantmaking
The foundation reported 10 grants totaling $67,000 in 2022 and seven grants totaling $34,000 in 2021. Its 2023 filing reported zero grants. In 2022, it gave $15,000 to Friends of Hawaii Charities Inc and $10,000 to the Hawaiian Humane Society.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2023 filing lists Stanley Y Mukai as president, Edwin Kobashigawa as vice president, and Gilbert Matsumoto as director.
Alexander C Waterhouse Sr Foundation is led by Stanley Y. Mukai, President on every filing since 2020; none of the 3 officers listed in 2023 report compensation.
Officers on the 2023 filing
Stanley Y. Mukai
President
On filings since 2020
No compensation reported
Gilbert Matsumoto
Director
On filings since 2020
$2K (2022) → $0 (2023)
Edwin Kobashigawa
Vice President
On filings since 2020
1 hr/week
$4K (2020) → $0 (2023)
Data from IRS Form 990 filings, 2020–2023. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2022 IRS filing
The highest reported compensation on the 2022 filing was $4K, to Edwin Kobashigawa (Vice President). 2 officers or directors reported compensation on that filing.
Frequently asked questions about Alexander C Waterhouse Sr Foundation
How large is Alexander C Waterhouse Sr Foundation?
Alexander C Waterhouse Sr Foundation reported $43K in total assets on its 2023 IRS Form 990-PF.
What does Alexander C Waterhouse Sr Foundation fund?
No mission statement for the foundation is provided. See mission & focus areas ↑
How do I apply for a grant from Alexander C Waterhouse Sr Foundation?
The 2023 filing says giving is not restricted to preselected organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
Where does Alexander C Waterhouse Sr Foundation make grants?
The foundation is based in Honolulu, Hawaii. Its listed 2022 grantees, Friends of Hawaii Charities Inc and the Hawaiian Humane Society, are also based in Honolulu.
How much is Alexander C Waterhouse Sr Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2023, Alexander C Waterhouse Sr Foundation reported a distributable amount of $2K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Alexander C Waterhouse Sr Foundation's EIN?
Alexander C Waterhouse Sr Foundation's EIN (Employer Identification Number) is 99-0263686. IRS Form 990 filing data is available on this page for 2020–2023.
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2023
Other open foundation grants in Hawaii
Hawaii Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in Alexander C Waterhouse Sr Foundation's focus areas in our free grants database
Similar Funders
Funders that support many of the same organizations
Tradewind Group Foundation
Honolulu, HI
The foundation supports Hawai‘i organizations working in areas including education, workforce development, housing, health, arts, and community service. In 2025, its 146 grants ranged from $86 to $100,510, with a median of $5,000. It accepts requests by letter year-round and does not restrict giving to preselected organizations.
Assets
$45.1M
Grants
146
Total Given
$1.5M
Aloha United Way Inc
Honolulu, HI
Aloha United Way supports Hawaiʻi nonprofits and community partners addressing health, education, financial stability, housing, and other human-service needs. Its 2024 grants had a median of $24,421, though awards varied widely; a published Safety Net funding cycle offered $20,000–$75,000 per year, and 99% of 2024 grant dollars went to Hawaiʻi. Funding is generally through partner-agency programs, and the profile does not state whether it accepts unsolicited requests.
Assets
$23.5M
Grants
175
Total Given
$14.0M
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
The Robert & Betty Wo Foundation
Honolulu, HI
The Robert & Betty Wo Foundation supports educational, literary, religious, and scientific programs, as well as charitable work; recent grants also funded higher education, healthcare, volunteering, and K–12 education. Its 2025 grants ranged from $1,000 to $75,000, with a median of $5,000, and went mostly to Hawaii, with some funding in North Carolina and Colorado. A 2023 filing says it does not restrict giving to preselected organizations and lists no application form or materials, but does not explicitly state whether it accepts unsolicited requests.
Assets
$1.7M
Grants
12
Total Given
$225K
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
McInerny Foundation
Honolulu, HI
The McInerny Foundation supports tuition aid, programs and general operations, and small capital projects in education, health, human services, arts and culture, community, and environmental fields, primarily benefiting Hawai‘i residents. Its 2025 grants ranged from $5,000 to $250,000, with a median of $35,000; it gives mainly in Hawai‘i. It funds only preselected organizations and does not accept unsolicited requests.
Assets
$139.0M
Grants
107
Total Given
$5.7M
More similar funders
More Funders in Hawaii
The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open
Figures come from Alexander C Waterhouse Sr 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.
Alexander C Waterhouse Sr Foundation down — hundreds of funders to go?