51 foundations in Hawaii told the IRS on the latest Form 990-PF that giving is not restricted to organizations picked in advance, and each paid at least 5 grants worth $100K or more that year. Together they paid $45.8M. The largest is Kosasa Foundation in Honolulu, which paid $7.1M across 47 grants in 2023. The ten biggest account for 68% of the state total, so most of this money sits with a small number of funders. 27 of the 51 file a submission deadline; the rest leave that line blank or point to a website. In a typical one, 30% of the year's grant dollars went to organizations it had not funded before.
Analysis by Matthew Hanauer, PhD, Chief Technology Officer at Civly, from IRS Form 990-PF filings · All states
Ranked by dollars paid in the foundation's own latest filed year. Click a column heading to sort. Deadlines print exactly as the foundation filed them, including the vague ones.
| # | Foundation | City | Latest year | Grants paid | Grants | Median grant | First-time recipients | Deadline as filed | Assets |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Kosasa Foundation | Honolulu | 2023 | $7.1M | 47 | $75K | 73% | Not stated | $159.4M |
| 2 | Harold K L Castle Foundation | Kailua | 2024 | $6.6M | 105 | $25K | 17% | SEE STATEMENT 14 - ATTACHMENT | $171.3M |
| 3 | Clarence T C Ching Foundation | Honolulu | 2024 | $5.4M | 63 | $25K | 30% | DEADLINES ARE JANUARY 31ST AND JULY 31ST; APPLICATIONS ARE REVIEWED AND APPROVED OR DENIED IN MARCH | $131.8M |
| 4 | Hmsa Foundation | Honolulu | 2024 | $2.1M | 19 | $50K | 8% | Not stated | $16.3M |
| 5 | Frost Family Foundation | Honolulu | 2024 | $2.0M | 17 | $75K | 13% | ANNUALLY THE FOUNDATION CURATES A SMALL GROUP OF NEW GRANTEES. CURRENTLY OUR GRANTS ARE BY INVITATIO | $7.2M |
| 6 | First Hawaiian Foundation | Honolulu | 2023 | $1.9M | 70 | $25K | 35% | Applications are accepted at any time. | $5.7M |
| 7 | James and Abigail Campbell Family Foundation | Kapolei | 2024 | $1.6M | 26 | $25K | 79% | GRANT APPLICATION MUST BE POSTMARKED BY: FEB. 1 FOR THE APRIL MTG.; AUG. 1 FOR THE OCTOBER MTG. | $30.8M |
| 8 | Strong Foundation | Honolulu | 2024 | $1.6M | 15 | $100K | 87% | MARCH IST. | $25.4M |
| 9 | Tradewind Group Foundation | Honolulu | 2025 | $1.5M | 146 | $5K | 41% | OPEN YEAR ROUND | $45.1M |
| 10 | Bank of Hawaii Foundation | Honolulu | 2024 | $1.4M | 40 | $25K | 19% | GRANT REQUESTS MAY BE SUBMITTED AT ANY TIME. | $1.7M |
| 11 | Cooke Foundation Limited | Honolulu | 2024 | $1.3M | 53 | $18K | 41% | AUGUST 1 & MARCH 1 OF THE FISCAL YEAR. | $16.0M |
| 12 | Hawaii Realtors Charitable Foundation | Honolulu | 2024 | $1.3M | 568 | $2K | 100% | DECEMBER 31, 2024 | $102K |
| 13 | Charles & Mitch Ota Foundation | Honolulu | 2024 | $935K | 32 | $20K | 37% | MAY 1, SEPT 1, DEC 1, OR FEB 1. | $22.7M |
| 14 | Armstrong Foundation | Honolulu | 2024 | $749K | 11 | $2K | 87% | NO SUBMISSION DEADLINES. | $173K |
| 15 | J Watumull Fund | Honolulu | 2023 | $690K | 241 | $2K | 23% | APPLICATIONS ACCEPTED ANYTIME. | $12.1M |
| 16 | Cades Foundation | Honolulu | 2023 | $686K | 57 | $8K | 5% | Not stated | $14.1M |
| 17 | Central Pacific Bank Foundation | Honolulu | 2024 | $612K | 70 | $5K | 32% | Not stated | $6.2M |
| 18 | Hans & Clara Davis Zimmerman Fdtn | Honolulu | 2025 | $589K | 55 | $6K | 7% | Not stated | $13.4M |
| 19 | First Insurance Company of Hawaii Charitable Foundation | Honolulu | 2025 | $506K | 83 | $5K | 13% | Not stated | $10.7M |
| 20 | Altres Foundation | Honolulu | 2025 | $504K | 87 | $500 | 73% | Not stated | $4.8M |
| 21 | Antone and Edene Vidinha Trust | Honolulu | 2024 | $382K | 8 | $50K | 45% | DECEMBER 1ST 11:59PM | $6.7M |
| 22 | Winslow Family Foundation | Kamuela | 2023 | $360K | 15 | $20K | 79% | Not stated | $6.9M |
| 23 | Henry and Colene Wong Foundation | Honolulu | 2024 | $329K | 15 | $20K | 6% | Not stated | $5.7M |
| 24 | Teresa F Hughes Trust Uw | Honolulu | 2024 | $325K | 10 | $30K | 0% | APRIL 30 11:59PM | $7.4M |
| 25 | Fred Baldwin Memorial Foundation | Honolulu | 2025 | $290K | 45 | $5K | 41% | FEBRUARY 1 & AUGUST 2 | $5.5M |
| 26 | Marshall and Yuko Hung Foundation | Honolulu | 2025 | $290K | 16 | $10K | 14% | Not stated | $4.9M |
| 27 | Ama Olukai Foundation | Honolulu | 2024 | $280K | 22 | $12K | 43% | Not stated | $1.1M |
| 28 | John Chin Young Foundation | Honolulu | 2025 | $280K | 12 | $11K | 14% | Not stated | $4.5M |
| 29 | James and Juanita C Wo Foundation | Mililani | 2024 | $270K | 14 | $20K | 24% | Not stated | $3.1M |
| 30 | Shiraki Memorial Foundation | Honolulu | 2023 | $267K | 14 | $7K | 9% | Not stated | $3.1M |
| 31 | Servco Foundation | Honolulu | 2024 | $267K | 39 | $2K | 100% | ANNUALLY, AT THE END OF FEBRUARY. | $3.9M |
| 32 | Hung Wo & Elizabeth Ching Foundation | Honolulu | 2024 | $254K | 42 | $4K | 27% | Not stated | $3.7M |
| 33 | Makana Aloha Foundation | Kailua | 2024 | $227K | 16 | $10K | 21% | Not stated | $5.1M |
| 34 | Robert and Betty Wo Foundation | Honolulu | 2024 | $225K | 12 | $5K | 39% | NONE AT PRESENT | $1.7M |
| 35 | Honda Foundation | Honolulu | 2025 | $218K | 23 | $5K | 30% | Not stated | $4.6M |
| 36 | Kenneth and Diane Matsuura Foundation | Honolulu | 2023 | $201K | 45 | $500 | 24% | CONTACT FOUNDATION | $2.2M |
| 37 | Thomas and Sumie Mccabe Foundation | Honolulu | 2025 | $200K | 13 | $15K | 35% | APPLICANTS MUST SUBMIT THE COMPLETED APPLICATION AT THE FOUNDATION'S ADDRESS POSTMARKED NO LATER THA | $2.5M |
| 38 | Castiglione a Casauria Foundation | Honolulu | 2025 | $195K | 23 | $5K | 21% | September 30th of each year | $2.8M |
| 39 | Grove Farm Company Foundation | Lihue | 2025 | $192K | 61 | $2K | 50% | Year-round | $5.2M |
| 40 | Locations Foundation | Honolulu | 2024 | $191K | 36 | $5K | 8% | NONE AT PRESENT | $1.1M |
| 41 | Turtle Bay Foundation | Kahuku | 2024 | $156K | 54 | $1K | 91% | OCTOBER 14, 2021 | $512K |
| 42 | Minami Community Foundation | Kaneohe | 2024 | $140K | 8 | $15K | 36% | Not stated | $2.9M |
| 43 | Masayuki and Harue Tokioka Foundation Inc | Honolulu | 2024 | $139K | 45 | $2K | 56% | No deadlines - applications accepted on an ongoing basis. | $673K |
| 44 | Dolores Furtado Martin Foundation | Honolulu | 2025 | $138K | 8 | $10K | 12% | Not stated | $3.3M |
| 45 | Waimakua Foundation | Lihue | 2024 | $135K | 22 | $2K | 3% | Not stated | $2.2M |
| 46 | Chung Kun Ai Foundation | Honolulu | 2025 | $131K | 49 | $1K | 21% | Not stated | $2.4M |
| 47 | Public Health Fund of the Chamber of Commerce of Hawaii | Honolulu | 2024 | $130K | 7 | $10K | 92% | THE DEADLINES FOR SUBMITTING GRANT PROPOSALS EVERY YEAR ARE JUNE 15 AND DECEMBER 15 | $2.1M |
| 48 | Ululani Foundation | Kailua Kona | 2024 | $125K | 7 | $15K | 8% | Not stated | $3.6M |
| 49 | Louise and Y T Lum Foundation | Honolulu | 2025 | $115K | 22 | $5K | 9% | NO SUBMISSION DEADLINES | $2.4M |
| 50 | Davis Levin Livingston Charitable Foundation | Honolulu | 2024 | $112K | 11 | $10K | 38% | Not stated | $980K |
| 51 | Ouida and Doc Hill Foundation | Honolulu | 2025 | $100K | 7 | $11K | 0% | Not stated | $1.6M |
The 25 largest by dollars paid have their own page with the application terms as filed, every recipient, and the trustees. The rest are listed here in full. Where a cell says n/a the filing does not carry that figure: a first-time recipient share needs more than one year of grants on record, and the asset figure comes from the IRS business master file, which does not cover every foundation.
Every figure on this page is that foundation's own latest filed year, which is 2022 or later. A foundation is listed because its Form 990-PF says it does not restrict giving to preselected organizations and it paid at least 5 grants totaling $100K or more that year. Latest-year grants and terms per foundation from IRS 990-PF e-file returns; the newest tax year is partial until the IRS finishes releasing it. Grants are de-duplicated on funder, year, recipient and amount, so identical repeat grants collapse into one and totals can run low. Full method.
Source: IRS Form 990-PF e-file releases (public domain). Analysis: Civly.
This page names every foundation in Hawaii that will read a request. Civly Grant Matching reads your own filings, matches your programs against millions of paid grants by purpose, geography and grant size, and hands back the funders with the deadline, the restrictions and the named trustees attached.
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