Environment nonprofits in Hawaii
Environment nonprofits in Hawaii. Browse 471 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.
Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.
Nonprofit profiles
- Sky Solutions
EIN 833585025 · Headquarters: Volcano, HI, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Society of American Foresters
EIN 237234359 · Headquarters: HILO, HI, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Soil and Water Conservation Society
EIN 990281819 · Headquarters: honolulu, HI, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- South Coast Ki Society
EIN 990235945 · Headquarters: Kaneohe, HI, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- South Kohala Reef Alliance
EIN 460680337 · Headquarters: Kamuela, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Stable Road Beach Restoration Foundation CO Ian Horswill President
EIN 260148511 · Headquarters: Paia, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Stop Bombing Hawaii Inc
EIN 371829973 · Headquarters: Hawaii National Park, HI, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Styrophobia
EIN 463895840 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Sustainability Association of Hawaii
EIN 263107092 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Sustainable Action Fund for the Environment
EIN 471149337 · Headquarters: Makawao, HI, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Sustainable Biodiesel Alliance
EIN 352288974 · Headquarters: Kahului, HI, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ
- Sustainable Coastlines Hawai'i
EIN 452596726 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sustainable Molokai
EIN 273261673 · Headquarters: KAUNAKAKAI, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Symbrosia Foundation
EIN 991323663 · Headquarters: Kailua Kona, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Tephritid Contol Inc
EIN 812812218 · Headquarters: Captain Cook, HI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Terraformation Org Foundation
EIN 852186568 · Headquarters: KAMUELA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Continu-aum
EIN 900412845 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- The Friends of Hanauma Bay
EIN 990285649 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Garden Club of Honolulu
EIN 996001533 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Green Will Conservancy Inc
EIN 264001666 · Headquarters: PAHOA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Kohala Center
EIN 990354676 · Headquarters: KAMUELA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Kohala Center Foundation
EIN 473907871 · Headquarters: KAMUELA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Merwin Conservancy
EIN 270444223 · Headquarters: Haiku, HI, USA · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990
- The Native Hawaiian Advisory Council Inc
EIN 990265274 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- The North Shore Community Land Trust
EIN 943276211 · Headquarters: HALEIWA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Outdoor Circle
EIN 990085044 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- The Reorganized Olowalu Cultural Reserve Dba Kipuka Olowalu
EIN 371979808 · Headquarters: Lahaina, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Virgil A Place Arboretum & Botanical Garden Inc
EIN 990327723 · Headquarters: Kamuela, HI, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990
- Thehawaii Island Sustainability Organization
EIN 300635857 · Headquarters: Pahoa, HI, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Think Beyond the Pump
EIN 861915172 · Headquarters: Kapaau, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Three Mountain Alliance Foundation
EIN 472233528 · Headquarters: VOLCANO, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Tiffany Project
EIN 463330611 · Headquarters: KAMUELA, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tipu Tipu Restoration and Sustainability
EIN 922290512 · Headquarters: Kahului, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Tjootjim Foundation
EIN 844007113 · Headquarters: HALEIWA, HI, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Treecovery Inc
EIN 934500472 · Headquarters: WAILUKU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Treeligion Inc
EIN 831709604 · Headquarters: HAIKU, HI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Trees for Honolulu's Future
EIN 814639152 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Trees for Tomorrow Today
EIN 934915778 · Headquarters: Paia, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Trees to Seas Inc
EIN 462789969 · Headquarters: Honolulu, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Tri-isle Resource Conservation & Devel Council
EIN 990278397 · Headquarters: KAHULUI, HI, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Uhiwai O Haleakala
EIN 831654685 · Headquarters: MAKAWAO, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Uluniu Beach Reserve Association
EIN 611739904 · Headquarters: Kihei, HI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Uncles Kokua Center
EIN 854008665 · Headquarters: Pahoa, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Understory Alliance
EIN 882282231 · Headquarters: Hanalei, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Waiea Water Foundation Inc
EIN 921545330 · Headquarters: Honolulu, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Waihapakai
EIN 872085209 · Headquarters: Kaneohe, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Waihee Valley Restoration
EIN 463075366 · Headquarters: Kahului, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Waihunahuna Foundation
EIN 881479185 · Headquarters: Kilauea, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Waikiki Beach Special Improvement District Association
EIN 474494508 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Waikoloa Dry Forest Initiative Inc
EIN 452689264 · Headquarters: Waikoloa, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Wailea808
EIN 334629165 · Headquarters: Wailea, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Waimea Nature Park Inc
EIN 990352108 · Headquarters: Kamuela, HI, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Waioli Valley Taro Hui Inc
EIN 833715476 · Headquarters: Hanalei, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Waiorg Inc
EIN 843324933 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Wastewater Alternative Technology Environmental Research Inc
EIN 731625397 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Water For Life Institute
EIN 562648453 · Headquarters: Kailua Kona, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Water Innovation Foundation Inc
EIN 853278367 · Headquarters: Anahola, HI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Water Institute for Sustainability Education
EIN 461871881 · Headquarters: HONOLULU, HI, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- West Hawaii Surfing Associations Kona Inc
EIN 393453474 · Headquarters: Kailua kona, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- West Hawai‘i Parks and Athletic Corporation
EIN 455193280 · Headquarters: KAILUA KONA, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Weylin and Roselyn Eng Family Foundation
EIN 394167282 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Whale Wise Foundation
EIN 393700681 · Headquarters: kula, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Whaleman International Ltd
EIN 990331050 · Headquarters: Lahaina, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- When We Shine Foundation
EIN 832225326 · Headquarters: KULA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Wild Communities Foundation
EIN 815140079 · Headquarters: Kailua, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Wild Whale Research Foundation
EIN 990291805 · Headquarters: Holualoa, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Wildlife Legacy
EIN 822905916 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Women in Solar
EIN 464695178 · Headquarters: Hilo, HI, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Worldopt Institute Inc
EIN 461525355 · Headquarters: Honolulu, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Xi Im Ek Balam Inc
EIN 991875010 · Headquarters: Pahoa, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Zero Waste Hawaii
EIN 833758604 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N