Funding Amount

US $3,000 - US $15,000

Deadline

Rolling / Open

Grant Type

foundation

Can we apply?

Check your organization against each line. Taken from the listing; confirm with the funder's guidelines.

Geography

  • Castle Foundation only funds organizations that serve the people of Hawaii.

Required status

  • 501(c)(3) tax-exempt status

Not eligible / not funded

  • Not eligible: The Harold K.L.
  • Not eligible: Individuals
  • Not eligible: Businesses
  • Not eligible: Ongoing operating expenses (except for those few organizations the Foundation deems critical to the success of its overall strategies.
  • Not eligible: The Foundation may also support a new project or organization needing start-up funding)
  • Not eligible: Vehicles
  • Not eligible: Computers
  • Not eligible: Endowments
  • Not eligible: Annual fund drives
  • Not eligible: Sponsorships, special events, dinners, galas
  • Not eligible: Organizations based outside of Hawaii
  • Not eligible: Projects taking place outside Hawaii that do not benefit Hawaii

Overview

Ko'olau Pilina Fund Grant

Status: ACTIVE
Funder: Harold K. L. Castle Foundation
Amount: US $3,000 - US $15,000
Last Updated: March 25, 2026

Summary

The Ko'olau Pilina Fund Grant, supported by the Harold K.L. Castle Foundation, aims to enhance community resilience in the Ko'olau region of Oʻahu. This grant prioritizes projects that align with community values and support for organizations serving Hawaii. Eligible applicants include nonprofits and public schools, with funding ranging from $3,000 to $15,000. The grant fosters grassroots initiatives through an open application process, empowering local communities to innovate and develop sustainable solutions.

Overview

The Harold K.L. Castle Foundation is proud to continue to support the Ko‘olau Pilina Fund. Now in itʻs fourth year, the fund prioritizes projects specifically tailored to Ko‘olau communities on Oʻahu from Kahuku to Makapuʻu. The purpose of the Koʻolau Pilina Fund (the fund) is to build community resilience in the Koʻolau region and follows a participatory approach to grantmaking in which a committee made up of Ko‘olau community members will vet proposals through an open, rolling application process. The committee hopes to help derisk new ideas, scale promising ideas, help to build capacity in the region and progress grassroots community efforts.

Eligibility

You can learn more about this opportunity by visiting the funder's website. Nonprofit organizations (recognized by the IRS as a 501(c)(3) and 509(a) public charity) or public schools The Harold K.L. Castle Foundation only funds organizations that serve the people of Hawaii.

Ineligibility

The Harold K.L. Castle Foundation does not make grants to:Individuals or businesses Ongoing operating expenses (except for those few organizations the Foundation deems critical to the success of its overall strategies. The Foundation may also support a new project or organization needing start-up funding) Vehicles Computers Endowments Annual fund drives Sponsorships, special events, dinners, galas Organizations based outside of Hawaii Projects taking place outside Hawaii that do not benefit Hawaii

What Harold KL Castle Foundation actually gave

Source: IRS Form 990-PF, 2024

Grants in 2024
106
Total given
$6.89M
Median grant
$25K
Range
$500–$550K
  • By dollars: Hawaii 83%, California 14%, District of Columbia 4%. Top recipient cities: Honolulu, HI; Kaneohe, HI; Kailua, HI.
  • 2% of grants with a stated purpose were for general or operating support.
  • 36% of recipients were new grantees, not repeat recipients.

Example grants

  • Social Finance Inc · Boston, CA

    Proposal to serve as hawaii renewable learning fund manager [6086; pc]

    $550K

  • University of Hawaii Foundation · Honolulu, HI

    Soar higher - support for windward oahu schools to participate as a gear up 6-16 model…

    $529K

  • Hawaii Community Foundation (HCF) · Honolulu, HI

    Support for a second round of contributions to the holomua pooled fund whose goal is…

    $500K

  • Kuaaina Ulu Auamo (Kua) · Kaneohe, HI

    To support and strengthen this critically important backbone organization and its…

    $500K

  • The Nature Conservancy of Hawaii · Honolulu, HI

    Advancing community-based marine management to reach 30x30 goals [5660; pc]

    $280K

IRS Form 990-PF, 2024. Amounts as reported by the funder. Full 990 history →

Focus Areas & Funding Uses

Fields of Work

nonprofitsk-12-schoolscommunity-development

Categories

Browse similar grants by category

Related Grants

Open grants from this funder and similar programs

Your AI grants department

Ready to apply for Ko'olau Pilina Fund Grant?

Grantable helps you assess fit, draft narratives, and track deadlines — so you can submit stronger applications, faster.

You found Ko'olau Pilina Fund Grant. Now let's win it.

Start writing