SAMUEL N & MARY CASTLE FOUNDATION

Nonpartisan civic infrastructure

AllCiv·Legis1

Samuel N & MARY Castle Foundation

Private foundation

DBA: % BANK OF HAWAII

Other · HONOLULU, HI · EIN 99-6003321

In care of Bank of Hawaii

Donations are tax-deductible

FY ending 2024-12-31

Revenue

—

Expenses

—

Assets

$38.6M

Liabilities

No revenue/expense data reported.

Campaign Spending

—

Lobbying

—

Grants Given

$1.9M

SAMUEL N & MARY CASTLE FOUNDATION

Your actions

PO BOX 3170

Honolulu, HI, 96802-317

Public records

Full 990 PDFs going back to 2001, plus parsed financial extracts. The easiest place to read actual filings.

IRS-side authoritative source. Confirms current exempt status and pulls the latest determination letter.

These open in a new tab. AllCiv doesn't host filings directly — these are the authoritative public-record sources.