Updated Oct 28, 2026
Private foundations based in Hawaii
197 grantmaking foundations headquartered in Hawaii, holding $1.9B in assets. Ranked by grants paid in their latest 990-PF; 29 on this page say they accept applications. For foundations ranked by where their grants went, see local funders.
| Foundation | Based in | Grants paid | Median grant | Accepts applications | Assets |
|---|---|---|---|---|---|
| Hau Oli Mau Loa Foundationsince 1991 | Honolulu, HI | $6.8M29 grants · 2024 | $175K | Preselected only | $156M |
| Harold K L Castle Foundationsince 1964 | Kailua, HI | $6.7M108 grants · 2024 | $25K | Yes | $171M |
| McInerny Foundationsince 1944 | Honolulu, HI | $5.7M107 grants · 2024 | $35K | Preselected only | $139M |
| Atherton Family Foundationsince 1975 | Honolulu, HI | $5.6M1 grants · 2024 | $5.6M | Yes | $83M |
| Clarence T C Ching Foundationsince 1968 | Honolulu, HI | $5.4M63 grants · 2024 | $25K | Yes | $132M |
| Kosasa Foundationsince 1994 | Honolulu, HI | $5.2M84 grants · 2024 | $45K | Yes | $159M |
| Maurice and Joanna Sullivan Family Foundationsince 2004 | Honolulu, HI | $3.9M27 grants · 2025 | $100K | Preselected only | $34M |
| Victoria S and Bradley L Geist Foundationsince 1976 | Honolulu, HI | $3.2M1 grants · 2025 | $3.2M | Yes | $38M |
| The Thomas J Vincent Foundationsince 2001 | Kaneohe, HI | $2.3M9 grants · 2024 | $20K | Preselected only | $22M |
| Hmsa Foundationsince 1998 | Honolulu, HI | $2.1M19 grants · 2024 | $50K | Yes | $16M |
| Gary O Galiher Foundation Incsince 2016 | Honolulu, HI | $2.1M13 grants · 2024 | $22K | Preselected only | $10.0M |
| Frost Family Foundationsince 2011 | Honolulu, HI | $2.0M17 grants · 2024 | $75K | Yes | $7.2M |
| Lga Family Foundationsince 1998 | Honolulu, HI | $2.0M21 grants · 2025 | $40K | Preselected only | $8.8M |
| Samuel N & Mary Castle Foundationsince 1938 | Honolulu, HI | $1.9M1 grants · 2024 | $1.9M | Yes | $39M |
| First Hawaiian Foundationsince 1978 | Honolulu, HI | $1.8M69 grants · 2024 | $25K | Yes | $5.7M |
| Hawaii Loa Ohanasince 2022 | Honolulu, HI | $1.8M33 grants · 2024 | $15K | Preselected only | $15M |
| Strong Foundationsince 1933 | Honolulu, HI | $1.6M16 grants · 2024 | $100K | Yes | $25M |
| James and Abigail Campbell Family Foundationsince 1981 | Kapolei, HI | $1.6M26 grants · 2024 | $25K | Yes | $31M |
| Dods Foundationsince 2016 | Honolulu, HI | $1.6M22 grants · 2024 | $5,000 | Preselected only | $5.5M |
| Mamoru and Aiko Takitani Foundation Incsince 1977 | Honolulu, HI | $1.6M164 grants · 2024 | $3,000 | Preselected only | $31M |
| Tradewind Group Foundationsince 2002 | Honolulu, HI | $1.5M146 grants · 2025 | $5,000 | Yes | $45M |
| Cooke Foundation Limitedsince 1971 | Honolulu, HI | $1.4M56 grants · 2024 | $20K | Yes | $16M |
| George N Wilcox General Trustsince 1942 | Honolulu, HI | $1.2M1 grants · 2025 | $1.2M | Preselected only | $21M |
| Charles & Mitch Ota Foundationsince 2013 | Honolulu, HI | $1.1M31 grants · 2025 | $30K | Yes | $23M |
| Garmar Foundationsince 1998 | Honolulu, HI | $1.1M27 grants · 2025 | $30K | Preselected only | $19M |
| Central Pacific Bank Foundationsince 2008 | Honolulu, HI | $816K41 grants · 2025 | $10K | Yes | $9.9M |
| Hans & Clara Davis Zimmerman Fdtnsince 1964 | Honolulu, HI | $778K85 grants · 2025 | $6,000 | Yes | $13M |
| Prisanlee Trustsince 1963 | Honolulu, HI | $746K1 grants · 2024 | $746K | Preselected only | $13M |
| Cades Foundationsince 1991 | Honolulu, HI | $711K61 grants · 2024 | $7,500 | Yes | $14M |
| J Watumull Fundsince 1976 | Honolulu, HI | $684K275 grants · 2024 | $2,000 | Yes | $12M |
| Harry Chow & Nee Chang Chock Wong Foundationsince 1970 | Honolulu, HI | $655K23 grants · 2025 | $25K | Preselected only | $14M |
| Bendon Family Foundation Incsince 1997 | Paia, HI | $641K38 grants · 2025 | $10K | Preselected only | $9.8M |
| Tokyo Union Church Foundation Incsince 2012 | Honolulu, HI | $611K1 grants · 2024 | $611K | Preselected only | $11M |
| Leonard Hoshijo Memorial Foundationsince 2006 | Honolulu, HI | $591K1 grants · 2025 | $591K | Preselected only | $14M |
| First Insurance Company of Hawaii Charitable Foundationsince 1999 | Honolulu, HI | $541K88 grants · 2025 | $5,000 | Yes | $11M |
| Loretta Luke Yajima Dream Big Foundationsince 2023 | Honolulu, HI | $512K3 grants · 2025 | $100K | Yes | $10.0M |
| Hiland Foundationsince 2017 | Honolulu, HI | $475K9 grants · 2025 | $50K | Preselected only | $5.9M |
| Roy H & Lorraine M Okumura Foundationsince 2014 | Kahului, HI | $425K32 grants · 2024 | $10K | Preselected only | $9.4M |
| Teresa F Hughes Trust Uwsince 1991 | Honolulu, HI | $415K11 grants · 2025 | $45K | Yes | $8.1M |
| Winfield and Frankie Payne Familyfoundation Trustsince 2017 | Waikoloa, HI | $409K8 grants · 2024 | $44K | Preselected only | $6.5M |
| Antone and Edene Vidinha Trustsince 1989 | Honolulu, HI | $382K8 grants · 2024 | $50K | Yes | $6.7M |
| Robert F Lange Foundationsince 1973 | Honolulu, HI | $379K2 grants · 2024 | $190K | Preselected only | $8.7M |
| Gertrude S Straub Trust Estatesince 1972 | Honolulu, HI | $378K1 grants · 2025 | $378K | Yes | $6.8M |
| Stephen and Isabella Stevens World Peace Foundationsince 2008 | Honolulu, HI | $354K11 grants · 2024 | $5,700 | Preselected only | $6.3M |
| W T Yoshimoto Foundation Charitable Trsince 2012 | Honolulu, HI | $320K3 grants · 2025 | $125K | Preselected only | $5.4M |
| Cn Wodehouse Hawaii Charities Trsince 2004 | Honolulu, HI | $319K8 grants · 2024 | $44K | Preselected only | $6.4M |
| Jean Estes Epstein Charitable Foundationsince 2009 | Honolulu, HI | $311K4 grants · 2025 | $89K | Yes | $5.4M |
| Winslow Family Foundationsince 1999 | Kamuela, HI | $310K11 grants · 2024 | $10K | Yes | $6.9M |
| Henry and Colene Wong Foundationsince 1992 | Honolulu, HI | $300K14 grants · 2025 | $20K | Yes | $5.6M |
| Germaine Hope Brennan Foundationsince 2004 | Honolulu, HI | $293K23 grants · 2025 | $5,500 | Preselected only | $16M |
| Fred Baldwin Memorial Foundationsince 1943 | Honolulu, HI | $290K45 grants · 2025 | $5,000 | Yes | $5.5M |
| Bellini Foundationsince 1981 | Lahaina, HI | $283K27 grants · 2024 | $10K | Preselected only | $5.3M |
| Michael J Marks Foundationsince 2008 | Honolulu, HI | $260K45 grants · 2025 | $5,000 | Preselected only | $5.4M |
| Bouslog Sawyer Charitable Trsince 2010 | Honolulu, HI | $125K1 grants · 2025 | $125K | Preselected only | $6.8M |
| Kahuku Development Foundation Incsince 1982 | Honolulu, HI | $108K3 grants · 2024 | $5,000 | Preselected only | $6.6M |
| K J Luke Foundationsince 1984 | Honolulu, HI | $57K8 grants · 2025 | $4,000 | Yes | $7.8M |
| Hawaiian Community Development Boardsince 2000 | Honolulu, HI | $3,0001 grants · 2024 | $3,000 | Preselected only | $6.7M |
| A L & Trini Kilgo Charitable Trsince 1992 | Honolulu, HI | $1,3001 grants · 2025 | $1,300 | Preselected only | $14M |
| Peter Faun Revocable Living Trustsince 2008 | Honolulu, HI | — | — | Preselected only | $7.0M |
| The Trimble Foundation C/O Gordon M Trimblesince 1994 | Honolulu, HI | — | — | Yes | $5.4M |
Sources: IRS Business Master File (assets), ProPublica Nonprofit Explorer and IRS 990-PF e-file (grants paid, application policy). "Accepts applications" reflects the foundation's own Part XV checkbox.
Open grant programs in Hawaii
All 2| Deadline | Grant | Funder | Award ceiling |
|---|---|---|---|
| Rollingno deadline | Hawaii State Foundation on Culture and the Arts — Organizational GrantsStateHawaii State Foundation on Culture and the Arts | Hawaii State Foundation on Culture and the Arts | Not listed |
| Rollingno deadline | Hawaii Council for the Humanities — Humanities GrantsStateHawaii Council for the Humanities | Hawaii Council for the Humanities | Not listed |
Common questions
How many private foundations are based in Hawaii?
Our directory lists 197 private grantmaking foundations in Hawaii with at least $1 million in assets, holding a combined $1.9B. The data comes from the IRS Exempt Organizations Business Master File and Form 990-PF.
How do I get a grant from a private foundation?
Start with foundations that already fund organizations like yours nearby. Read the grantee list on each profile, check whether the foundation accepts applications (it says so on its 990-PF), and lead with a short letter of inquiry. Many family foundations fund only organizations they already know; an introduction through a shared grantee or board member works better than a cold proposal.
Can you help us approach foundations?
Yes. Our grant writers research foundation prospects, write letters of inquiry, and build a foundation fundraising plan. Request a free consultation.