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Harold K L Castle Foundation logo
Grants awarded

Who does Harold K L Castle Foundation fund?

Harold K L Castle Foundation has awarded $30 million across 394 grants to 181 grantees between 2020 and 2023. Its giving concentrates in education. Its typical grant is $47,464, with most between $20,000 and $100,000. Repeat grantees receive a median $50,000 versus $23,319 for first-time grantees.

Total awarded
$30.1M
Typical grant
$47K
Grantees
181
Grants
394
Years
2020–2023

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Organizations this funder supports

Each grantee's funding from this organization, summed across all reported years. Largest first — click any column to re-sort.

100 of 181 grantees
Click a column to sort
Grantee Total receivedGrantsYearsLatestState Support
University of Hawaii Foundation $6.7M462020–20232023HI
H Hawaii Community Foundation (hcf) $4.1M202020–20232023— —
T The Nature Conservancy of Hawaii $1.5M42020–20232023— —
K Kuaaina Ulu Auamo (kua) $1.2M42020–20232023— —
50can INC $650K62020–20232023DC
T Teach for America (tfa) $535K62020–20232023— —
P Pilina Education Alliance $450K42021–20232023— —
Resources Legacy Fund $447K92020–20232023CA
Bobby Benson Center $410K22020–20222022HI
K Kualoa-Heeia Ecumenical Youth Project (key) $410K62020–20232023— —
H Hawaii Conservation Alliance Foundation $400K22020–20212021— —
Hookuaaina $395K32020–20232023HI
Chamber of Commerce of Hawaii $382K52020–20232023HI
Hui O Hauula $346K42020–20222022HI
I Individual recipient $339K52020–20232023— —
Polynesian Voyaging Society $326K62020–20232023HI
Center for Tomorrow's Leaders $315K32020–20222022HI
Waimanalo Health Center $309K42020–20222022HI
C Conservation International $300K32020–20212021— —
The Trust for Public Land $300K22022–20232023CA
Kai Loa INC $274K32020–20222022HI
Castle Medical Center $265K22022–20232023HI
I Individual recipient $252K22020–20232023— —
Hawaii Workforce Pipeline INC $247K32020–20222022HI
M Malama Honua Public Charter School Foundation $217K52020–20232023— —
U University of Virginia $217K22020–20232023— —
H Hawaii Alliance of Nonprofit Organizations $200K52020–20232023— —
H Hawaiian Island Land Trust (hilt) $200K22021–20222022— —
C Collaborative Support Services (css) $195K42020–20222022— —
Kauluakalana $190K32020–20222022HI
Paepae O Heeia $175K22022–20232023HI
Historic Hawaii Foundation $175K120232023HI
Kanehunamoku Voyaging Academy $173K120212021HI
Hawaiian Community Assets INC $172K220212021HI
The Education Incubator $170K120202020HI
W Windward School District $168K42021–20232023— —
Lanakila Pacific $158K32020–20232023HI
C College Summit INC DBA Peerforward $154K22022–20232023— —
H Hawaii Department of Education Kailua Kalaheo Complex Area $151K52020–20232023— —
Social Finance INC $150K120232023MA
Vision to Learn $150K22020–20222022CA
P Partners in Care - Oahu's Continuum of Care $150K22021–20222022— —
W Wastewater Alternative and Innovations $150K32020–20222022— —
Kupu $145K22020–20222022HI
Hui Malama O Ke Kai Foundation $135K32020–20222022HI
Elemental Excelerator INC $128K22021–20232023HI
T The Pacific American Foundation (paf) $126K120202020— —
Manoa Heritage Center $125K120222022HI
Kanu Hawaii $125K32020–20232023HI
H Hawaii Homeless Healthcare Hui (h4) $125K22020–20212021— —
Council for Native Hawaiian Advancement $125K32021–20232023HI
I Institute for Human Services INC $123K120212021— —
Kauai Economic Development Board INC $115K22020–20232023HI
The Mediation Center of the Pacific INC $110K22020–20212021HI
Adult Friends for Youth $107K42020–20232023HI
Ho'ola NA Pua $100K22020–20232023HI
Maui United Way INC $100K120232023HI
C City and County of Honolulu Office of Climate Change Sustainability and Res $100K120232023— —
U University of Hawaii $100K120202020— —
Conservation International Foundation $95K120232023VA
L Legal Aid Society $95K120212021— —
H Hi Fusioned (isis Hawaii) $90K32021–20232023— —
Y YMCA - Windward Branch $90K32020–20212021— —
A Asu Foundation $87K22021–20222022— —
Healthy Climate Communities $80K32020–20232023HI
W Waimanalo Canoe Club $80K22020–20232023HI
L Leadership Instituue Hawaii Department of Education $80K120232023— —
H Hawaii Technology Academy $75K22020–20212021— —
S State Higher Education Executive Officers Association $75K22021–20222022— —
Connected the National Center for College and Career $75K120232023CA
NA Maka Onaona $75K22022–20232023HI
K Koolau Foundation $75K120232023— —
H Hawaii State Board of Education $75K22021–20222022— —
Aloha United Way INC $75K220202020HI
Hawaii Literacy INC $74K120212021HI
Boys and Girls Club of Hawaii $70K22021–20232023HI
I Individual recipient $70K32022–20232023— —
A Alternative Structures International $68K120212021— —
Hui Mahiai Aina $63K120222022HI
A Associated Builders & Contractors INC $60K120232023— —
H Hawaii Electricians Training Fund $60K120232023HI
Malama Learning Center $60K22020–20222022HI
Palama Settlement $60K22021–20232023HI
Makaha Cultural Learning Center $60K120232023HI
R Residential Youth Services & Empowerment $60K22021–20232023— —
Domestic Violence Action Center $50K120202020HI
Hui O WA a Kaulua $50K120232023HI
New Teacher Center $50K22022–20232023CA
Hawaii Foodbank INC $50K120202020HI
Kulia Education Foundation $50K120232023HI
Hale Makua Health Services $50K22020–20212021HI
Blue Planet Foundation $50K22021–20222022HI
Center for Disaster Philanthropy INC $50K120232023DC
I Individual recipient $50K22022–20232023— —
H Hawaii People's Fund $50K120232023— —
H Hawaii Appleseed Center for Law & Economic Justice $50K120222022— —
W Wastewater Alternatives and Innovations $50K120232023— —
California Fire Foundation $50K120232023CA
K Kalanihale $50K22020–20212021HI
Legal Aid Society of Hawaii $40K120202020HI

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Public data from IRS Form 990 e-file & Business Master File. A 990 shows how an organization is run and funded — not its real-world outcomes. Figures are presented without evaluation; we do not rate, score, or rank organizations. · philanthropy.org