Mabel I Wilcox Foundation
Private foundation · Honolulu, HI · EIN 99-6002447 · reported 2023–2025 · files as Mabel I Wilcox Foundation Trust
16grants reported
$4,750median award
$4,000lower quartile
$2,000smallest grant
$80Ktotal paid
1states reached
3years giving
Gives only in HI. Every grant it reported went to a single state. If you are outside it, this is not a prospect. If you are inside it, that is the strongest signal on this page: a funder with a local mandate and less competition from out of state.
This foundation funds faith-based organizations. 1 of its 16 reported grants went to churches, ministries or other religious organizations, $4,500 in total. That is what it paid, not what it says in a policy.
Gives every year. This foundation reported grants in 2023, 2024, 2025. A funder that shows up year after year is worth a letter even if this year is a no.
Where to write
PO Box 3708
Honolulu, HI 96811-3708
Address as registered with the IRS. Most foundations this size have no website and no application form, which is not a dead end: a short letter to this address is the whole process, and almost nobody sends one.
This address is a trust department, not an office. 29 other foundations file from the same address, which means a bank or a management company administers the trust. Put the full legal name of the fund and its EIN at the top of the letter, or it lands in a pile with thousands of others and nobody knows which fund you are writing about.
Who they funded
| Recipient and stated purpose | Where | Amount |
|---|---|---|
| Waioli Corporation GENERAL CHARITABLE PURPOSES | Lihue, HI | $10,000 |
| Waioli Corporation GENERAL CHARITABLE PURPOSES | Lihue, HI | $7,775 |
| Waimea Sugar Mill Museum GENERAL CHARITABLE PURPOSES | Waimea, HI | $6,000 |
| Waimea Sugar Mill Museum GENERAL CHARITABLE PURPOSES | Waimea, HI | $6,000 |
| Kauai Police Activities League | Lihue, HI | $5,500 |
| Waioli Corporation GENERAL CHARITABLE PURPOSES | Lihue, HI | $5,000 |
| Island School GENERAL CHARITABLE PURPOSES | Lihue, HI | $5,000 |
| National Tropical Botanical Garden | Kalaheo, HI | $4,750 |
| National Tropical Botanical Garden | Kalaheo, HI | $4,750 |
| Waimea United Church of Christ | Waimea Kauai, HI | $4,500 |
| Kau AI Economic Development Board | Lihue, HI | $4,000 |
| Hawaii Children's Theatre GENERAL CHARITABLE PURPOSES | Lihue, HI | $4,000 |
| University of Hawaii Foundation | Honolulu, HI | $4,000 |
| Hawaii Children's Theatre GENERAL CHARITABLE PURPOSES | Lihue, HI | $4,000 |
| Waimea Sugar Mill Museum GENERAL CHARITABLE PURPOSES | Waimea, HI | $3,000 |
| Hawaii Children's Theatre GENERAL CHARITABLE PURPOSES | Lihue, HI | $2,000 |
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