Pearl City, HI

OHUOHU KOOLAU INC

EIN 20-3039461

Environment & Animal Welfare Wildlife & Habitat Conservation

Mission

To support conservation and cooperative management of the Koʻolau Mountains watershed on Oʻahu through on-the-ground invasive species control, native ecosystem restoration, and partnership-based stewardship.

IRS-recognized 501(c)(3) public charity Contributions are tax-deductible

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About OHUOHU KOOLAU INC

Ohu Ohu Koʻolau Inc is a Hawaiʻi-based nonprofit focused on watershed and native-forest conservation in the Koʻolau Mountains on Oʻahu. The organization works primarily through restoration projects, invasive-species control, and partnerships with landowners, foundations, and other conservation groups to protect water resources and native habitat.

Ohu Ohu Koʻolau appears in federal Form 990 records under EIN 20-3039461 and is an active participant in local watershed partnership networks and recent foundation-funded invasive species control projects (notably albizia and feral pig control) in 2023–2024. The group has operated since the mid-2000s and conducts field-based restoration and stewardship work rather than maintaining a separate, standalone public website.

Notable achievements

Sustained field restoration work

Maintained multi-year on-the-ground restoration and invasive-species control programs in the Koʻolau watershed, including targeted albizia and feral-pig control efforts in recent grant-funded seasons.

Secured competitive foundation funding

Received multiple private foundation grants during 2023–2024 that supported invasive species control and watershed restoration activities, enabling expanded field operations.

Long-term partnership role in Kōolau watershed protection

Serves as a partner organization within the Koʻolau Mountains watershed partnership framework, contributing staff time, volunteers, and project coordination to landscape-scale restoration efforts.

At a glance

Total assets: $417K
Annual revenue: $498K
Tax status: 501(c)(3)Public charity
EIN: 20-3039461
Location: Pearl City, HI
On Mahalo since: May 2026

Financial figures from the IRS Business Master File, the IRS’s registry of tax-exempt organizations.

Recognition

Named partner in the Koʻolau Mountains Watershed Partnership and active collaborator in regional watershed conservation programming.

Recipient of multiple foundation grants in 2023–2024 supporting invasive-species control and restoration, as documented in public grant and Form 990 filings.

Listed in public nonprofit/990 databases and foundation filings under EIN 20-3039461, indicating formal 501(c)(3) status and recent federal filing activity.

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