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
- Maui Nui Marine Resource Council Inc
EIN 472509441 · Headquarters: KIHEI, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Maui Ocean Center Marine Institute
EIN 812540684 · Headquarters: WAILUKU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Maui Orchid Society Inc
EIN 990352475 · Headquarters: Kahului, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Maui Recycling Group Inc
EIN 990288422 · Headquarters: Makawao, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Mauna Loa Observatory Employee Association
EIN 392315014 · Headquarters: Hilo, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Maunalua Fishpond Heritage Center
EIN 261349087 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Merwin Conservancy Inc
EIN 474653401 · Headquarters: HAIKU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Mission Sunrise Initiative
EIN 853096956 · Headquarters: HONOLULU, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Mlt Holdings Inc
EIN 820654450 · Headquarters: KAUNAKAKAI, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Mohala I Ka Wai
EIN 900589717 · Headquarters: Waianae, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Moku O Keawe Land Conservancy
EIN 842416109 · Headquarters: Hilo, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Moku O Waialua Watershed Action Group Inc
EIN 204538174 · Headquarters: Waialua, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Molokai Land Trust
EIN 204915071 · Headquarters: KAUNAKAKAI, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Na Hinano O Opana
EIN 881287752 · Headquarters: Paia, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Na Hoa Ululaau O Kalamawaiawaawa
EIN 331668946 · Headquarters: CAPTAIN COOK, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Na Hoaloha O Ka'aina Ltd
EIN 990352138 · Headquarters: LAHAINA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Na Kama Kai
EIN 262034996 · Headquarters: WAIANAE, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Na Leo Pohai
EIN 990332954 · Headquarters: HONOLULU, HI, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Na Mamo Aloha Aina O Honokohau
EIN 843838841 · Headquarters: LAHAINA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Na Mamo O Kawa
EIN 465114219 · Headquarters: Naalehu, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Na Mamo O Muolea
EIN 205764862 · Headquarters: HANA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Na Pali Coast Ohana
EIN 990327138 · Headquarters: LIHUE, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Na Papai Wawae Ulaula
EIN 884311039 · Headquarters: Wailuku, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nahele Hou Foundation Fka Waiohuli Mana Foundation
EIN 921128631 · Headquarters: KULA, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Napili Bay and Beach Foundationinc
EIN 205394259 · Headquarters: LAHAINA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Tropical Botanical Garden
EIN 526057064 · Headquarters: Kalaheo, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Native Planters
EIN 990207049 · Headquarters: Kailua, HI, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Ncl America Charitable Foundation
EIN 760819865 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- New Cycle Foundation
EIN 921982531 · Headquarters: WAIMANALO, HI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- North Beach - West Maui Benefit Fund Inc
EIN 261949693 · Headquarters: LAHAINA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- North Shore Career Training Corporation
EIN 990186001 · Headquarters: Kaaawa, HI, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Oahu Agriculture and Conservation Association
EIN 831975797 · Headquarters: Kunia, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Oahu Resource Conservation and Development Council
EIN 943279682 · Headquarters: Kunia, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oahu Waterkeeper
EIN 823117183 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ocean Protection Association of Hawaii
EIN 471776768 · Headquarters: Ewa Beach, HI, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Ocean Rescue Foundation
EIN 813567314 · Headquarters: HONOLULU, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ocean Seed Foundation Inc
EIN 842075428 · Headquarters: Kealakekua, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ocean View Business Association
EIN 990295774 · Headquarters: Ocean View, HI, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Oceanamatica
EIN 822820286 · Headquarters: Naalehu, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ohia Legacy Initiative
EIN 465739954 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ohu Ohu Koolau Inc
EIN 203039461 · Headquarters: PEARL CITY, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- One Village Project
EIN 813327685 · Headquarters: KAPAAU, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Onewild Inc
EIN 881779587 · Headquarters: PRINCEVILLE, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Onomilu
EIN 331678613 · Headquarters: KALAHEO, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Optimum Living Alliance
EIN 204471467 · Headquarters: Haiku, HI, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Paa Pono Milolii
EIN 300209770 · Headquarters: CAPTAIN COOK, HI, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- Pacific American Foundation Hawaii Inc
EIN 472621483 · Headquarters: KAILUA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Pacific Bonsai Club
EIN 955003040 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Pacific Orchid Society of Hawaii
EIN 237073667 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Pacific Rim Conservation
EIN 262905658 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Pacific Whale Foundation
EIN 990207417 · Headquarters: WAILUKU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Pahonu Beach Community Restoration Foundation Inc
EIN 861580621 · Headquarters: Waimanalo, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Palehua Conservation Initiative
EIN 932702027 · Headquarters: Honolulu, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Pangeaseed Foundation
EIN 472605555 · Headquarters: HILO, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Papahana Kuaola
EIN 202565007 · Headquarters: KANEOHE, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Plan to Protect
EIN 990313545 · Headquarters: Captain Cook, HI, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Plant a Tree Hawaii Inc
EIN 842224451 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Poipu Beach Foundation Inc
EIN 990350383 · Headquarters: KOLOA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Pono Ethos
EIN 842970361 · Headquarters: Honoluu, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Practical Policy Institute of Hawaii
EIN 874604702 · Headquarters: Kailua, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Project Reuse
EIN 332652597 · Headquarters: Kihei, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Protect & Preserve Hawaii Inc
EIN 833415430 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Protect Our Ala Wai Watersheds
EIN 843017277 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Protectors of Paradise
EIN 813184422 · Headquarters: Waipahu, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Puako for Reefs
EIN 932809206 · Headquarters: KAMUELA, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Puao Ola O Laka
EIN 334900907 · Headquarters: Waimanalo, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Puma Punku Ocean Clean Up Inc
EIN 464295416 · Headquarters: Waianae, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Puna Pono Alliance
EIN 461597949 · Headquarters: Keaau, HI, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Puna Pono Association
EIN 810939894 · Headquarters: Keaau, HI, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Pure Knf Foundation
EIN 843078726 · Headquarters: PAPAIKOU, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Puuwai Ko Ola
EIN 992704282 · Headquarters: Waianae, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Quiet Ocean Standards Initiative
EIN 923828809 · Headquarters: Kapaa, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Radical Joy for Hard Times
EIN 270327095 · Headquarters: Waimanalo, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rae of Lavender and Eco Farm
EIN 933733479 · Headquarters: HALEIWA, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rama Tree
EIN 800503037 · Headquarters: Kamuela, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Re-use Hawaii
EIN 205840697 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- Recycle Hawaii
EIN 990293381 · Headquarters: HILO, HI, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- Reef Guardians Hawaii
EIN 473975420 · Headquarters: PRINCEVILLE, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Reef Scuba
EIN 850698477 · Headquarters: HONOLULU, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Regenerations International Botanical Garden
EIN 510620229 · Headquarters: KILAUEA, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Regenerative Education Centers Inc
EIN 824555166 · Headquarters: KAHULUI, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Respect the Ocean
EIN 452015981 · Headquarters: kamuela, HI, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Rhbs Foundation
EIN 334927386 · Headquarters: Ewa Beach, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rise for the Earth
EIN 821289164 · Headquarters: Kailua, HI, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Roberts Hawaii Foundation
EIN 990345386 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Root & Rise Hawaii
EIN 921524161 · Headquarters: Captain Cook, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rotary Club of Lahaina Sunset Foundation
EIN 842237754 · Headquarters: LAHAINA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Save Honolua Coalition
EIN 320202758 · Headquarters: LAHAINA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Save Kaiwa Ridge
EIN 811085555 · Headquarters: Kaneohe, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Save Our Sherwoods
EIN 842132326 · Headquarters: Waimanalo, HI, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Save Raja Ampat Foundation
EIN 455116233 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Save Sharks Cove Alliance
EIN 332208035 · Headquarters: Haleiwa, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Saving Hawaiis Forests
EIN 815126420 · Headquarters: Kaneohe, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Scenic Hawaii Inc
EIN 990325200 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sea Inspiration
EIN 264836548 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Seahorse Hawaii Foundation
EIN 205592772 · Headquarters: KAILUA KONA, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Seascape Academy
EIN 933651243 · Headquarters: Mililani, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sera International
EIN 831634290 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Shoreline Conservation Initiative
EIN 833112194 · Headquarters: Haleiwa, HI, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Shoreline Preservation Coalition
EIN 923212564 · Headquarters: Haleiwa, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ