Private Foundation

HAROLD KL CASTLE FOUNDATION

HAROLD KL CASTLE FOUNDATION, of KAILUA, HI, is a Private Foundation tracked in Imperigo's IRS 990 database. The 2024 filing shows $8.3M in revenue, $10.6M in expenses, $171.3M in total assets. IRS filings disclose 409 grants awarded by this foundation, totaling roughly $29.2M.

EIN: 996005445 KAILUA, HI Latest filing: 2024
Total Revenue$8.3M
Total Expenses$10.6M
Total Assets$171.3M
Grants Given409
Grant Total$29.2M
Filing Years2020–2024

Sample Grants Given

SOCIAL FINANCE INC
BOSTON, CA · 2024
PROPOSAL TO SERVE AS HAWAII RENEWABLE LEARNING FUND MANAGER [6086; PC]
$550,000
UNIVERSITY OF HAWAII FOUNDATION
HONOLULU, HI · 2024
SOAR HIGHER - SUPPORT FOR WINDWARD OAHU SCHOOLS TO PARTICIPATE AS A GEAR UP 6-16 MODEL [5173; PC]
$529,240
KUAAINA ULU AUAMO (KUA)
KANEOHE, HI · 2024
TO SUPPORT AND STRENGTHEN THIS CRITICALLY IMPORTANT BACKBONE ORGANIZATION AND ITS THREE COMMUNITY-DRIVEN NETWORKS FOR OCEAN MANAGEMENT IN HAWAII. [5598; PC]
$500,000
HAWAII COMMUNITY FOUNDATION (HCF)
HONOLULU, HI · 2024
SUPPORT 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]
$500,000
HAWAII COMMUNITY FOUNDATION (HCF)
HONOLULU, HI · 2024
PILINA FUND 2.0 [5618; PC]
$400,000

Showing up to 5 of 409 total records — full history available with membership.

Officers & Directors

VICE PRESIDENT OF PROGRAMS Alexander Harris
TREASURER Ann S Matsukado
VICE PRESIDENT OF FINANCE Carlton Kc Au
DIRECTOR Corbett Ak Kalama
DIRECTOR Dee Jay A Mailer
VICE PRESIDENT OF RESILIENCY Dennis Eric Co

Officer compensation and complete director data available with membership.

Top Grant Purposes

PILINA FUND 2.0 [5618; PC]
$1,100,000 3 grants
SOAR HIGHER - SUPPORT FOR WINDWARD OAHU SCHOOLS TO PARTICIPATE AS A GEAR UP 6-16 MODEL [5173; PC]
$1,058,480 2 grants
PARTNERING TO ADVANCE HAWAI'I'S MARINE 30X30 INITIATIVE PHASE I: BUILDING A POOLED FIELD OF INTEREST FUND [5046; PC]
$1,000,000 2 grants
TO SUPPORT AND STRENGTHEN THIS CRITICALLY IMPORTANT BACKBONE ORGANIZATION AND ITS THREE COMMUNITY-DRIVEN NETWORKS FOR OCEAN MANAGEMENT IN HAWAII. [5598; PC]
$600,000 2 grants
ADVANCING COMMUNITY-BASED MARINE MANAGEMENT TO REACH 30X30 GOALS [5660; PC]
$560,000 2 grants

Financial Trends

Year Revenue Expenses Assets
2024 $8.3M $10.6M $171.3M
2023 $11.3M $10.9M $173.5M
2022 $8.1M $11.2M $173.0M
2020 $7.5M $10.9M $169.3M

Between 2020 and 2024, reported annual revenue grew from $7.5M to $8.3M (+11%), with total assets most recently reported at $171.3M.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in AZ, CA, CO, DC, HI, MA, and 3 other states.

AZCACODCHIMAMDNYVA

Full geographic grant map with state-by-state breakdown available with membership.

See the full picture for HAROLD KL CASTLE FOUNDATION

Complete financials, all 409 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 498,000+ organizations.

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