Open Foundations · Hawaii

Harold K L Castle Foundation

Kailua, Hawaii · EIN 996005445. Its Form 990-PF says giving is not restricted to organizations picked in advance, which is how a private foundation files that it accepts unsolicited requests. It paid $6.6M across 105 grants in 2024, a median of $25K each.

All Hawaii foundations · All states

$6.6M
paid in 2024
105
grants paid
$25K
median grant
17%
to first-time recipients
$171.3M
assets on file

How to apply, as filed

Straight off Part XV of the return. Where the foundation left a line blank, this says so rather than guessing.

Send requests to
ELIZABETH MURPH
Address
1197 AULOA ROAD, KAILUA, HI, 96734
Phone
8082637073
Email
Not stated in the filing
Form the request should take
SEE STATEMENT 14 - ATTACHMENT
Submission deadline
SEE STATEMENT 14 - ATTACHMENT
Restrictions on awards
SEE STATEMENT 14 - ATTACHMENT

As filed on the Form 990-PF for tax year 2024, IRS filing object id 202543179349104159. Printed word for word, including the entries that only say to see a website or an attachment.

What it funds, in its own words

The words that come up most often across the purposes it wrote on its 2024 grants. These are the foundation's own words, not a category we assigned.

middle schoolyour ownown yourown futurepost-high studentstudent transitionshawaiigov

Biggest grants in 2024

The 15 largest of the 105 grants paid in 2024, with the purpose the foundation wrote for each.

#RecipientStateAmountPurpose as filed
1Social Finance IncCA$550,000PROPOSAL TO SERVE AS HAWAII RENEWABLE LEARNING FUND MANAGER [6086; PC]
2University of Hawaii FoundationHI$529,240SOAR HIGHER - SUPPORT FOR WINDWARD OAHU SCHOOLS TO PARTICIPATE AS A GEAR UP 6-16 MODEL [5173; PC]
3Hawaii Community Foundation (hcf)HI$500,000SUPPORT FOR A SECOND ROUND OF CONTRIBUTIONS TO THE HOLOMUA POOLED FUND WHOSE GOAL IS TO IMPROVE MARINE RESOURCES MANAGEMENT IN HAWAII THROUGH A SUITE OF EFFORTS BUILT ON FOUR PILLARS: PLACE-BASED PLANNING, PONO PRACTICES, MONITORING, AND PROTECTION & RESTORATION [5905; PC]
4Kuaaina Ulu Auamo (kua)HI$500,000TO SUPPORT AND STRENGTHEN THIS CRITICALLY IMPORTANT BACKBONE ORGANIZATION AND ITS THREE COMMUNITY-DRIVEN NETWORKS FOR OCEAN MANAGEMENT IN HAWAII. [5598; PC]
5Hawaii Community Foundation (hcf)HI$400,000PILINA FUND 2.0 [5618; PC]
6The Nature Conservancy of HawaiiHI$280,000ADVANCING COMMUNITY-BASED MARINE MANAGEMENT TO REACH 30X30 GOALS [5660; PC]
7University of Hawaii FoundationHI$214,286TO EXTEND WINDWARD COMMUNITY COLLEGE'S GROUNDBREAKING HOOLEI SCHOLARSHIP THAT ENSURES ALL PUBLIC SCHOOL GRADUATES IN THE KOOLAU REGION CAN AFFORD TO ATTEND COMMUNITY COLLEGE [6140; PC]
8Hawaii Hospital Education and Research Foundation (hherf)HI$150,000TO RETROFIT DOE CLASSROOMS FOR HEALTHCARE PATHWAYS IN PARTNERSHIP WITH HAWAII 3R'S, G70 AND HAWAII PACIFIC HEALTH [6363; PC]
9University of Hawaii FoundationHI$150,000HAWAII P-20 CORE SUPPORT 2022-2025 [5465; PC]
10Windward School DistrictHI$150,000TO INTERNALLY DRIVE WINDWARD DOE SCHOOLS TOWARDS AINA ALOHA MINDSET ACHIEVEMENT THROUGH TEACHER PROFESSIONAL DEVELOPMENT (PD) DAYS AND CLOSER ENGAGEMENT BETWEEN SCHOOLS AND AINA-BASED EDUCATION ORGANIZATIONS. [6371; GOV]
11Purple MaiaHI$145,000FOR THE EXPANSION OF HALAU HEKILI, A MIDDLE COLLEGE HIGH SCHOOL ON THE CAMPUS OF WINDWARD COMMUNITY COLLEGE. [6277; PC]
12Hawaii Conservation Alliance FoundationHI$132,715FOR THE NEXT PHASE OF THE AHUPUAA ACCELERATOR, A PROGRAM TO EXPAND WATERSHED-WIDE COMMUNITY MANAGEMENT THAT HAS EXPANDED TO 46 PARTNERS STATEWIDE. [6153; PC]
13Resources Legacy FundCA$120,000TO HELP ADVANCE THE HOLOMUA INITIATIVE AND THE CARE FOR AINA NOW COALITION (FORMERLY GREEN FEE) ENVIRONMENTAL CAPITAL FORMATION WORK [6125; PC]
14The American Ai Forum Aka Ai Education ProjectCA$115,000TO DELIVER PROFESSIONAL DEVELOPMENT THAT HELPS HAWAII PUBLIC SCHOOL TEACHERS BETTER UNDERSTAND ARTIFICIAL INTELLIGENCE (AI) AND HOW TO RESPONSIBLY INCORPORATE AI LITERACY INTO THEIR CURRICULUM. [6286; PC]
15College Summit Inc Dba PeerforwardDC$103,163TO SCALE A PROMISING PEER COUNSELING MODEL TO FOUR ADDITIONAL HIGH SCHOOLS. [6267; PC]

Giving by year, and who received it

Grants paid by year

Every year of this foundation's grants that Civly holds
Tax yearGrantsPaid
2020102$6.8M
2021100$7.1M
202279$7.8M
2023111$7.2M
2024105$6.6M

Where the money went

Share of 2024 grant dollars by recipient state
Hawaii91%
California5%
District of Columbia4%

Who decides

Officers, directors and trustees as filed, with the year of the return they appeared on.

Alexander HarrisVICE PRESIDENT OF PROGRAMS · 2024
Ann S MatsukadoTREASURER · 2024
Carlton Kc AuVICE PRESIDENT OF FINANCE · 2024
Corbett Ak KalamaDIRECTOR · 2024
Dee Jay a MailerDIRECTOR · 2024
Dennis Eric CoVICE PRESIDENT OF RESILIENCY · 2024
Dr Claire L AsamDIRECTOR · 2024
Dr Kittredge a BaldwinDIRECTOR · 2024
Eric K YeamanDIRECTOR · 2024
Henry M D'olierDIRECTOR/CHAIRMAN · 2024
James H McintoshDIRECTOR · 2024
Jennifer G SabasDIRECTOR · 2024
Susan L SumidaSECRETARY · 2024
T Aulani WilhelmDIRECTOR · 2024
Terrence R GeorgePRESIDENT/CEO · 2024

Every figure on this page is that foundation's own latest filed year, which is 2022 or later. This 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.

Get matched against every grant these foundations actually paid

One foundation is a start. Civly Grant Matching reads your own filings, matches your programs against millions of paid grants by purpose, geography and grant size, and hands back every funder like this one with the deadline, the restrictions and the named trustees attached.

See Grant Matching