Honolulu, HI

Hawaii Nature Center Inc

EIN 99-0208246

Environment & Animal Welfare Environmental Education & Advocacy Children & youth

Mission

We seek to foster awareness, appreciation, understanding, and stewardship of Hawai‘i's environment by educating children with an interactive and immersive approach.

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

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About Hawaii Nature Center Inc

Hawaii Nature Center (HNC) is a 501(c)(3) environmental education nonprofit established in 1981 that delivers hands-on, outdoor science programs for children and families on Oʻahu and Maui. The organization operates school field trips, year-round Nature Adventure Camps, homeschool science series, and community programs designed to foster environmental stewardship and science literacy. HNC maintains active, donor-facing operations with a public website and regular program announcements; recent program activity includes 2026 camp and school-program registrations and ongoing capital-improvement planning. The organization serves a large number of students and community participants annually and has used a mix of contributions, program revenue, and grants to support operations and facility upgrades.

Notable achievements

Four-decade operation

Established in 1981, HNC has operated continuous environmental education programming for over 40 years, building sustained program capacity across multiple islands.

Large annual program reach

Delivering thousands of education experiences each year (program materials state roughly 10,000 schoolchildren and adults reached annually in recent planning documents).

Capital improvement funding

Secured government grant/contract support for facility and infrastructure improvements, including documented funding activity tied to capital projects and wastewater/facility upgrades.

At a glance

Total assets: $5.0M
Annual revenue: $916K
Tax status: 501(c)(3)Public charity
EIN: 99-0208246
Location: Honolulu, HI
Website: hawaiinaturecenter.org
On Mahalo since: May 2026

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

Recognition

Rated a Four‑Star charity (96%) by Charity Navigator for Accountability & Finance based on recent IRS Form 990 data.

Listed in national nonprofit databases and tax-exempt records as Hawaii Nature Center Inc, EIN 99-0208246, tax-exempt since 1981.

Recipient and applicant of state grant funding and letters of support for capital improvements and program expansion (documented in a 2025 grant application).

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