Data / Nonprofits / Arizona / Environment
Environment nonprofits in Arizona: 468 registered with the IRS
468 environment nonprofits are registered with the IRS in Arizona, 454 of them 501(c)(3) charities; the 137 that report revenue took in $207.1 million. The most are in Tucson (75), Phoenix (68), Flagstaff (31). The largest by revenue: American Conservation ($44.7 million), Desert Botanical Garden ($30.2 million), Grand Canyon Conservancy ($17.9 million).
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Every organization, largest by revenue first
| Organization | City | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| American Conservation | Flagstaff | 501(c)(3) | 2004 | $44.7 million | $11.1 million | 2024-12 |
| Desert Botanical Garden | Phoenix | 501(c)(3) | 1949 | $30.2 million | $86.7 million | 2025-09 |
| Grand Canyon Conservancy | Grand Canyon | 501(c)(3) | 1962 | $17.9 million | $42.1 million | 2025-12 |
| Grand Canyon Trust Inc | Flagstaff | 501(c)(3) | 1985 | $17 million | $72.6 million | 2025-12 |
| Arizona Association of Conservation Districts Inc | Tempe | 501(c)(3) | 1992 | $6.5 million | $580,060 | 2025-12 |
| Tucson Botanical Gardens | Tucson | 501(c)(3) | 1970 | $6.2 million | $12.2 million | 2025-06 |
| WM Symposia Inc | Tempe | 501(c)(3) | 2026 | $6.1 million | $8.9 million | 2025-06 |
| Verderia | Paulden | 501(c)(3) | 2023 | $5.2 million | $9.1 million | 2025-12 |
| Tohono Chul Park Inc | Tucson | 501(c)(3) | 1982 | $4.7 million | $11.9 million | 2025-06 |
| Blue Hills Environmental Association | St Johns | 501(c)(3) | 1992 | $4.1 million | $3.1 million | 2025-06 |
| Repurposed Environmental Solutions | Phoenix | 501(c)(3) | 2023 | $3.7 million | $1.5 million | 2025-12 |
| Percival Lowell Trust Uw | Flagstaff | 501(c)(3) | 2018 | $3.6 million | $43 million | 2025-12 |
| Paradise Valley Mountain Preserve Trust | Paradise Vly | 501(c)(3) | 1998 | $3.3 million | $31.4 million | 2025-06 |
| Borderlands Restoration Network | Patagonia | 501(c)(3) | 2015 | $3.2 million | $3.4 million | 2024-12 |
| Bluecommons Inc | Phoenix | 501(c)(3) | 2024 | $2.3 million | $1.8 million | 2025-12 |
| Native Seeds Southwestrn Endangered Aridland Resources Clearing House | Tucson | 501(c)(3) | 1983 | $2.3 million | $2.7 million | 2025-09 |
| Az Water Association | Chandler | 501(c)(3) | 2003 | $1.9 million | $1.9 million | 2024-12 |
| International Sonoran Desert Alliance | Ajo | 501(c)(3) | 1995 | $1.8 million | $8.1 million | 2024-12 |
| Southwestern Environmental Education Exchange | Tucson | 501(c)(3) | 1991 | $1.7 million | $890,360 | 2024-12 |
| Tucson Clean and Beautiful Inc | Tucson | 501(c)(3) | 1986 | $1.7 million | $529,685 | 2025-06 |
| Harvest Eco-Salvage | Scottsdale | 501(c)(3) | 2017 | $1.6 million | $116,197 | 2024-12 |
| Wild Arizona | Tucson | 501(c)(3) | 2004 | $1.5 million | $358,180 | 2024-12 |
| McDowell Sonoran Conservancy | Scottsdale | 501(c)(3) | 1991 | $1.4 million | $1.3 million | 2025-06 |
| Arizona Land and Water Trust Inc | Tucson | 501(c)(3) | 1979 | $1.3 million | $20.3 million | 2025-09 |
| Watershed Management Group Inc | Tucson | 501(c)(3) | 2005 | $1.3 million | $1.1 million | 2024-12 |
| Sky Island Alliance | Tucson | 501(c)(3) | 1995 | $1.3 million | $1.1 million | 2024-12 |
| Friends of Saguaro National Park Inc | Tucson | 501(c)(3) | 1997 | $1.2 million | $1.4 million | 2024-12 |
| Highlands Center for Natural History | Prescott | 501(c)(3) | 1996 | $1.1 million | $3.8 million | 2025-06 |
| Sonora Environmental Research Institute Inc | Tucson | 501(c)(3) | 1994 | $1.1 million | $285,157 | 2024-12 |
| Ecoculture | Flagstaff | 501(c)(3) | 2021 | $1.1 million | $250,900 | 2024-12 |
| Arizona Sustainability Alliance | Phoenix | 501(c)(3) | 2017 | $1 million | $516,517 | 2024-12 |
| Trees Matter | Phoenix | 501(c)(3) | 2007 | $987,989 | $510,342 | 2025-06 |
| Dine Citizens Against Ruining Our Environment | Window Rock | 501(c)(3) | 1995 | $962,939 | $3.9 million | 2025-12 |
| G E M Environmental NFP | Prescott | 501(c)(3) | 2017 | $947,854 | $441,002 | 2024-12 |
| Transition Zone Horticultural Institute Inc | Flagstaff | 501(c)(3) | 1982 | $937,704 | $2.8 million | 2024-12 |
| Sonoran Desert Conference Center | Ajo | 501(c)(3) | 2016 | $885,612 | $426,961 | 2024-12 |
| Friends of Camp Colton | Flagstaff | 501(c)(3) | 2001 | $765,219 | $3.9 million | 2025-06 |
| Arizona Community Tree Council Inc | Gilbert | 501(c)(3) | 1993 | $702,893 | $86,323 | 2024-12 |
| Gila Watershed Partnership of Arizona | Thatcher | 501(c)(3) | 2003 | $638,366 | $117,187 | 2025-12 |
| Malpai Borderlands Group Inc | Douglas | 501(c)(3) | 1994 | $627,597 | $14 million | 2025-12 |
| Keep Phoenix Beautiful Inc | Phoenix | 501(c)(3) | 1984 | $589,119 | $363,716 | 2025-06 |
| Youth Outdoor Experience | Tucson | 501(c)(3) | 2014 | $578,299 | $117,333 | 2025-06 |
| Altar Valley Conservation Alliance | Tucson | 501(c)(3) | 2002 | $569,108 | $2.1 million | 2024-12 |
| Desert Foothills Land Trust Inc | Cave Creek | 501(c)(3) | 1996 | $564,370 | $16.3 million | 2024-12 |
| Western States Projects Training Fund | Phoenix | 501(c)(3) | 2002 | $559,313 | $1.7 million | 2025-12 |
| Coalition for Sonoran Desert Protection | Tucson | 501(c)(3) | 2018 | $554,998 | $701,318 | 2025-12 |
| Sedona Red Rock Trail Fund | Sedona | 501(c)(3) | 2014 | $541,387 | $1.8 million | 2025-09 |
| Sedona Recycles Inc | Sedona | 501(c)(3) | 1989 | $510,046 | $760,871 | 2024-12 |
| Desert Botanical Garden Foundation | Phoenix | 501(c)(3) | 2009 | $482,962 | $21.2 million | 2025-09 |
| Tigermountain Foundation | Tempe | 501(c)(3) | 2009 | $470,825 | $97,023 | 2025-12 |
| The Freecycle Network | Tucson | 501(c)(3) | 2006 | $426,737 | $1.2 million | 2025-06 |
| Grand Canyon River Guides Inc | Flagstaff | 501(c)(3) | 1995 | $418,618 | $565,238 | 2025-06 |
| Friends of Horseshoe Park | Queen Creek | 501(c)(3) | 2010 | $405,871 | $338,049 | 2024-12 |
| Natural Restorations | Gilbert | 501(c)(3) | 2017 | $400,227 | $23,087 | 2024-12 |
| Cuenca de Los Ojos | Tucson | 501(c)(3) | 2018 | $375,552 | $891,670 | 2024-12 |
| Rainbow Lake Conservation Company | Lakeside | 501(c)(3) | 2023 | $351,658 | $511,353 | 2024-12 |
| Mongol Ecology Center | Tucson | 501(c)(3) | 2014 | $331,732 | $111,348 | 2025-12 |
| Greater Flagstaff Forests Partnership Inc | Flagstaff | 501(c)(3) | 1998 | $326,453 | $319,583 | 2025-06 |
| Rio Reimagined Foundation | Phoenix | 501(c)(3) | 2024 | $320,597 | $320,597 | 2024-12 |
| Verde Valley Trail Fund | Cornville | 501(c)(3) | 2021 | $314,052 | $296,188 | 2025-09 |
| White Tank Mountains Conservancy | Buckeye | 501(c)(3) | 2016 | $313,051 | $220,382 | 2025-12 |
| National Association of State Trust Lands | Phoenix | 501(c)(3) | 2020 | $298,909 | $734,262 | 2025-06 |
| Wilderness Volunteers | Phoenix | 501(c)(3) | 1997 | $282,787 | $351,895 | 2025-12 |
| Save the Scenic Santa Ritas | Tucson | 501(c)(3) | 1997 | $280,990 | $508,965 | 2025-12 |
| Valley Garden Center | Phoenix | 501(c)(3) | 1952 | $264,475 | $356,534 | 2025-05 |
| Friends of the San Pedro River Inc | Sierra Vista | 501(c)(3) | 1989 | $259,204 | $511,863 | 2025-09 |
| Patagonia Area Resource Alliance | Patagonia | 501(c)(3) | 2013 | $251,958 | $173,360 | 2025-12 |
| Boyd Ranch | Wickenburg | 501(c)(3) | 2024 | $247,825 | $2 million | 2025-12 |
| Willow Bend Environmental Education Center | Flagstaff | 501(c)(3) | 1980 | $238,896 | $232,827 | 2025-06 |
| Arizona Interfaith Power and Light | Tempe | 501(c)(3) | 2012 | $220,373 | $199,017 | 2024-12 |
| Central Arizona Land Trust Inc | Prescott | 501(c)(3) | 1991 | $211,552 | $831,487 | 2025-12 |
| Maricopa Trail and Park Foundation | Glendale | 501(c)(3) | 2012 | $209,689 | $68,800 | 2025-06 |
| Lets Go Compost | Scottsdale | 501(c)(3) | 2023 | $192,651 | $65,489 | 2025-12 |
| Foundation for the Conservation of Arizonas Wildlife | Phoenix | 501(c)(3) | 1991 | $188,984 | $223,476 | 2025-06 |
| Black Mesa Trust | Kykotsmovi | 501(c)(3) | 2000 | $186,237 | $30,046 | 2023-12 |
| Pima County Parklands Foundation | Tucson | 501(c)(3) | 1986 | $183,533 | $1.5 million | 2025-12 |
| The Arizona Floodplain Management Association | Chandler | 501(c)(3) | 1996 | $178,766 | $147,963 | 2025-12 |
| Tucson Cactus and Succulent Society Inc | Tucson | 501(c)(3) | 2001 | $175,605 | $481,570 | 2025-12 |
| Arizona Attorneys for Criminal Justice Inc | Oro Valley | 501(c)(6) | 1986 | $174,309 | $150,653 | 2025-12 |
| Friends of Sabino Canyon Inc | Tucson | 501(c)(3) | 1993 | $155,690 | $531,213 | 2025-12 |
| Arizona Mining Reform Coalition | Tucson | 501(c)(3) | 2022 | $155,242 | $183,721 | 2025-12 |
| Keep Tucson Clean Inc | Tucson | 501(c)(3) | 2025 | $149,214 | $1 | 2025-12 |
| Paradise Lake Association Inc | Arizona City | 501(c)(7) | 2024 | $148,496 | $99,267 | 2025-12 |
| Care About Climate Inc | Flagstaff | 501(c)(3) | 2015 | $147,266 | $262,761 | 2026-02 |
| Women Invested To Save Earth Fund Corporation | Flagstaff | 501(c)(3) | 2021 | $134,741 | $1,176 | 2025-12 |
| Shayarina Amazonian Resilience | Tempe | 501(c)(3) | 2021 | $130,308 | $84,621 | 2025-12 |
| Southeastern Arizona Bird Observatory Incorporated | Bisbee | 501(c)(3) | 1997 | $124,603 | $591,627 | 2025-12 |
| Friends of the Tonto National Forest Inc | Phoenix | 501(c)(3) | 2015 | $120,747 | $188,551 | 2025-12 |
| Lake Baikal Heritage Foundation | Tucson | 501(c)(3) | 2008 | $119,427 | $37,699 | 2025-12 |
| Azland Fund | Phoenix | 501(c)(3) | 2023 | $117,136 | $64,642 | 2025-12 |
| Sun City West Prides Inc | Sun City West | 501(c)(3) | 1983 | $112,971 | $485,909 | 2025-12 |
| Central Arizona Cactus and Succulent Society | Phoenix | 501(c)(3) | 2008 | $112,304 | $82,271 | 2025-12 |
| Empire Ranch Foundation | Sonoita | 501(c)(3) | 1998 | $108,687 | $250,800 | 2025-12 |
| Earth Giving Day | Phoenix | 501(c)(3) | 2021 | $107,177 | $21,014 | 2025-12 |
| Good Market Inc | Phoenix | 501(c)(3) | 2020 | $102,204 | $335,195 | 2024-12 |
| Apache Junction Rock and Gem Club Inc | Apache JCT | 501(c)(3) | 2024 | $102,082 | $223,985 | 2025-12 |
| Grand Canyon Colorado River Fund | Flagstaff | 501(c)(3) | 1997 | $95,907 | $475 | 2025-12 |
| Valley of the Sun Clean Cities Coal | Scottsdale | 501(c)(3) | 2015 | $90,447 | $28,190 | 2025-12 |
| Friends of Cave Creek Canyon | Portal | 501(c)(3) | 2024 | $89,646 | $215,307 | 2025-12 |
| Oak Creek Watershed Council | Sedona | 501(c)(3) | 2004 | $85,522 | $61,256 | 2025-12 |
| Saguaro Juniper Corporation | Tucson | 501(c)(3) | 2024 | $85,178 | $362,539 | 2025-12 |
| Southwest Wildlife Foundation | Yuma | 501(c)(3) | 2026 | $84,046 | $116,363 | 2021-12 |
| Sycamore Canyon Conservationfoundation | Tucson | 501(c)(3) | 2007 | $80,752 | $95,530 | 2025-06 |
| Cascabel Conservation Association Inc | Benson | 501(c)(3) | 1997 | $78,430 | $499,701 | 2025-12 |
| Pine Strawberry Fuel Reduction Inc | Pine | 501(c)(3) | 2008 | $78,272 | $344,627 | 2025-12 |
| The Natural Resource Education Center Inc | Casa Grande | 501(c)(3) | 1996 | $70,804 | $127,748 | 2025-12 |
| Ecotopia | Bisbee | 501(c)(3) | 2019 | $69,408 | $52,641 | 2025-12 |
| Brighten Haiti | Queen Creek | 501(c)(3) | 2024 | $66,750 | $478 | 2023-12 |
| Arizona Recycling Coalition | Phoenix | 501(c)(3) | 2012 | $64,340 | $142,547 | 2025-12 |
| Counting Coral Corp | Sedona | 501(c)(3) | 2020 | $61,942 | $46,951 | 2025-12 |
| Society for Ecological Restoration - Southwest Chapter | Tucson | 501(c)(3) | 2014 | $61,747 | $59,736 | 2024-12 |
| Chiricahua Land Conservancy | Portal | 501(c)(3) | 2022 | $61,450 | $320,598 | 2025-12 |
| Desperados | Carefree | 501(c)(3) | 2024 | $60,127 | $285,685 | 2025-12 |
| Lake Havasu Marine Association | LK Havasu Cty | 501(c)(3) | 2014 | $58,384 | $112,494 | 2025-06 |
| SCW Desert Garden Club | Sun City West | 501(c)(3) | 2022 | $56,601 | $69,418 | 2025-12 |
| Bar X Ranch Conservatory Inc | Goodyear | 501(c)(3) | 2000 | $56,091 | $1.2 million | 2025-12 |
| Trail Riders of Southern Arizona | Tucson | 501(c)(3) | 2014 | $54,259 | $51,176 | 2025-12 |
| Diablo Canyon Group Inc | Flagstaff | 501(c)(3) | 1999 | $48,612 | $213,714 | 2024-12 |
| Green Power 4 All Inc | Show Low | 501(c)(3) | 2023 | $47,365 | $1 million | 2024-12 |
| Gardens for Humanity Inc | Sedona | 501(c)(3) | 1996 | $44,387 | $62,246 | 2025-12 |
| Tubac Nature Center | Tubac | 501(c)(3) | 2019 | $41,667 | $148,131 | 2025-06 |
| Coconino Plateau Watershed Partnership | Flagstaff | 501(c)(3) | 2014 | $40,574 | $106,310 | 2025-12 |
| Columbine Garden Club | Phoenix | 501(c)(3) | 2009 | $37,785 | $130,153 | 2025-06 |
| Sun City Prides Inc | Sun City | 501(c)(3) | 1982 | $34,528 | $679,532 | 2024-12 |
| Honor Water | Phoenix | 501(c)(3) | 2023 | $28,751 | $52,275 | 2025-12 |
| Northern Arizona Municipal Water Users Association | Flagstaff | 501(c)(4) | 2009 | $24,978 | $64,570 | 2025-12 |
| Arizona Federation of Garden Clubs Inc | Sedona | 501(c)(3) | 1968 | $19,190 | $157,345 | 2025-05 |
| Poipu Beach Foundation | Phoenix | 501(c)(3) | 2001 | $15,244 | $46,300 | 2024-12 |
| Rincon Institute | Tucson | 501(c)(3) | 1992 | $14,406 | $35,599 | 2026-06 |
| Arizona Peace Trail Inc | Bouse | 501(c)(3) | 2015 | $12,818 | $32,188 | 2025-12 |
| Rock Springs Hertiage Foundation | Black Cyn Cty | 501(c)(3) | 2017 | $10,000 | $123,539 | 2025-12 |
| Ghost Carbon | Scottsdale | 501(c)(3) | 2015 | $5,376 | $142,174 | 2025-12 |
| Nose Knows Conservation Foundation | Tucson | 501(c)(3) | 2022 | $3,500 | $15,167 | 2023-12 |
| Boyce Thompson Arboretum Foundation | Superior | 501(c)(3) | 2022 | $2,311 | $756 | 2025-06 |
| Ghost Riders | Bouse | 501(c)(3) | 2018 | $2,101 | $5,750 | 2024-12 |
| Irondequoit Conservation Society Inc | Tucson | 501(c)(3) | 2016 | $8 | $578,605 | 2025-06 |
| 2 the One Foundation | Tempe | 501(c)(3) | 2022 | $1.8 million | 2025-12 | |
| 86413 Litter Free | Golden Valley | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Ace Global | Chandler | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Ag R&D | Yuma | 501(c)(3) | 2024 | $0 | $0 | 2025-05 |
| Agua Fria Open Space Alliance Inc | Humboldt | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Ahwatukee Community Alliance Inc | Phoenix | 501(c)(3) | 2026 | |||
| Ajo Garden Club | Ajo | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Alamocito Foundation Inc | Scottsdale | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Alpine Trail Stewards | Nutrioso | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Amazonia Latitude Inc | Phoenix | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Antelope Ridge Estates Trail & Road Conservancy | Chino Valley | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Aquifer & Stream Restoration Trust | Oro Valley | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Arizona Alpine Trail Inc | Pinetop | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Arizona Archaeological Council | Tempe | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Arizona Association of Environmental Professionals | Tucson | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Arizona Backroads Cleanup | Glendale | 501(c)(3) | 2026 | |||
| Arizona Biosafety Alliance | Tempe | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Arizona Council of Audubon Chapters | Yuma | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Arizona Environmental Health Association Inc | Phoenix | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Arizona Federation of Garden Clubs | Yuma | 501(c)(3) | 1969 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Yuma | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Yuma | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Tempe | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Scottsdale | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Phoenix | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Phoenix | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Fountain HLS | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Oro Valley | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Prescott | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Sedona | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Green Valley | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Kingman | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Gold Canyon | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs | Sun Lakes | 501(c)(3) | 1968 | $0 | $0 | 2025-05 |
| Arizona Federation of Garden Clubs Inc | Chandler | 501(c)(3) | 1968 | |||
| Arizona Foundation for Wildlife | Prescott Vly | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Arizona Four Wheel Drive Foundation | Cortaro | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Arizona Herb Association | Phoenix | 501(c)(3) | 2011 | $0 | $0 | 2026-06 |
| Arizona Land and Water Conservancy Inc | Phoenix | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Arizona Master Naturalist Association | Tucson | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Arizona Mushroom Society Inc | Phoenix | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Arizona Native Plant Society | Tucson | 501(c)(3) | 1977 | $0 | $0 | 2025-12 |
| Arizona Section Society for Range Management | Tucson | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Arizona Sustainable Futures Foundation | Phoenix | 501(c)(3) | 2025 | $0 | $0 | 2025-06 |
| Articulture Institute Inc | Scottsdale | 501(c)(3) | 2014 | $548,476 | 2025-12 | |
| Axels Army | Glendale | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Ayahuasca Collective | Avondale | 501(c)(3) | 2024 | |||
| Azland Org | Phoenix | 501(c)(3) | 2023 | |||
| Azure Education | Phoenix | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Back Country Horsemen Arizona | Mesa | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Back Country Horsemen of Centralarizona | Prescott | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Back Country Horsemen of the White Mountains Az | Show Low | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Barry Starr Phoenix Indian School Park Memorial Trust | Phoenix | 501(c)(3) | 2000 | $0 | $0 | 2025-12 |
| Bee A Hero | Scottsdale | 501(c)(3) | 2024 | |||
| Bee Balanced | Tucson | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Bisbee Bloomers | Bisbee | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Bosque Marea Conservation Initiative | Cornville | 501(c)(3) | 2026 | |||
| Branch Foundation | Oro Valley | 501(c)(3) | 2024 | |||
| Branches of Hope | Williams | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Brilliant Planet | Phoenix | 501(c)(3) | 2020 | $0 | $0 | 2025-11 |
| Buckeye Valley Conservation Education Center Inc | Buckeye | 501(c)(3) | 1999 | $0 | $0 | 2026-06 |
| Bugs in Community | Green Valley | 501(c)(3) | 2026 | |||
| Built 2030 Institute | Scottsdale | 501(c)(3) | 2026 | |||
| Canyon Club of Page Foundation Inc | Page | 501(c)(3) | 2023 | $0 | $0 | 2025-06 |
| Carefree Park | Carefree | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Cave Creek Dark Sky | Cave Creek | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Changed By Nature Outdoors | Flagstaff | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Chawe Futuro Foundation | Mesa | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Cienega Watershed Partnership | Vail | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Citizens Water Advocacy Group | Prescott | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Clean Arizona Trails | Pine | 501(c)(3) | 2025 | |||
| Clean Forest Arizona | Payson | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Clean Power Arizona | Phoenix | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Clean Up Papago | Glendale | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Coalition for Concerned Citizens | Sedona | 501(c)(3) | 2013 | $0 | $0 | 2024-12 |
| Cochise County Master Gardeners Association | Sierra Vista | 501(c)(3) | 1996 | $0 | $0 | 2026-06 |
| Coconino Plateau Water Advisory Council | Flagstaff | 501(c)(4) | 2012 | $0 | $0 | 2025-12 |
| Colorado River Ecosystem Foundation | Kingman | 501(c)(3) | 1996 | $0 | $0 | 2025-06 |
| Community Environmental Listening | Tempe | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Community Harvest Community Gardens Organization | Chandler | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Community Tire Salsa Garden | Desert Hills | 501(c)(3) | 2016 | $0 | $0 | 2026-04 |
| Community Watershed Alliance | Benson | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Compost for Life | Clarkdale | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Conserve and Protect Arizona | New River | 501(c)(4) | 2020 | $0 | $0 | 2025-12 |
| Conserventures Charitable Organization | Saint David | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Coronado Forest Dr Water Coop | Tucson | 501(c)(3) | 2026 | |||
| Coronado Project Arizona | Sahuarita | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Dawn Corporation | Ganado | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Defiantly Ambitious River Runners Expeditions | Flagstaff | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Desert Rivers Audubon Society | Gilbert | 501(c)(3) | 2007 | $0 | $0 | 2025-06 |
| Desert Seed Resource Center | Safford | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Desert Valley Orchid Society Inc | Mesa | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Dig It - Grow It - Share It | Phoenix | 501(c)(3) | 2019 | $0 | $0 | 2026-08 |
| Dino Dianes Adventure Club Inc | Sedona | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Dolan Springs Trail System | Dolan Springs | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Dont Waste Arizona Inc | Tucson | 501(c)(3) | 1993 | $0 | $0 | 2025-12 |
| Downwinders of Mohave County Inc | Kingman | 501(c)(4) | 2011 | $0 | $0 | 2025-12 |
| Dr Wilderness Show | Vail | 501(c)(3) | 1997 | $0 | $0 | 2025-12 |
| E&AS Compost & Worm Farm | Peoria | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Earth Month Network | Maricopa | 501(c)(3) | 2014 | $0 | $0 | 2025-07 |
| East Valley Back Country Horsemen | Apache JCT | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Ecoresults Inc | Flagstaff | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Edward Paul Abbey Foundation | Tucson | 501(c)(3) | 2018 | $0 | $0 | 2025-05 |
| El Moraga-Bar Ranch Improvement District | Tucson | 501(c)(3) | 2004 | $0 | $0 | 2026-06 |
| Elemeno Inc | Mesa | 501(c)(3) | 2010 | $0 | $0 | 2024-12 |
| Enviroinsight Inc | Glendale | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Environmental Concerns Organization | Tempe | 501(c)(3) | 1997 | $0 | $0 | 2025-12 |
| Environmental Information Association-Arizona Chapter Inc | Phoenix | 501(c)(6) | 2014 | $0 | $0 | 2024-12 |
| Environmental Testing USA | McNeal | 501(c)(3) | 2024 | $0 | $0 | 2026-06 |
| Envision Ecotrust Inc | Tempe | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Espe Resources | Grand Canyon | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Ev Chargers for Schools | Tucson | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Ex-Box Foundation Inc | Phoenix | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Federated Garden Clubs of New York State Inc | Scottsdale | 501(c)(3) | 2006 | $0 | $0 | 2026-02 |
| Flagstaff Dark Skies Coalition | Flagstaff | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Forests for Our Future | Sun Lakes | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Forever Wild Foundation | San Tan Vly | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Fort Valley Neighborhood Association | Flagstaff | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Foundation for the Preservation of Little Jamaica | Littlefield | 501(c)(3) | 2022 | $700 | 2024-12 | |
| Freinds of Las Lagunas Inc | Nogales | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Friends of Big Bug Mesa Road Inc | Prescott Valley | 501(c)(3) | 2026 | |||
| Friends of Bill Williams River and Havasu National Wildlife Refuges | Fort Mohave | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Friends of Buenos Aires National Wildlife Refuge | Arivaca | 501(c)(3) | 1996 | $0 | $0 | 2025-12 |
| Friends of Clark Park Community Garden | Tempe | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Friends of Cochamo | Flagstaff | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Friends of Fort Lowell Park | Tucson | 501(c)(3) | 2020 | $0 | $0 | 2026-06 |
| Friends of Ironwood Forest | Tucson | 501(c)(3) | 2009 | $0 | $0 | 2025-09 |
| Friends of Northern Arizona Forests | Flagstaff | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Friends of Redington Pass Inc | Tucson | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Friends of Rio Vista | Tucson | 501(c)(3) | 2021 | $0 | $0 | 2026-06 |
| Friends of Saddle Mountain | Tonopah | 501(c)(3) | 2007 | $0 | $0 | 2026-06 |
| Friends of Sonoita Creek | Patagonia | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Friends of the Agua Fria National Monument | Black Canyon City | 501(c)(3) | 2007 | $0 | $0 | 2025-09 |
| Friends of the Huachuca Mountains Inc | Hereford | 501(c)(3) | 1997 | $0 | $0 | 2025-08 |
| Friends of the Joshua Forest | Meadview | 501(c)(3) | 2014 | $0 | $0 | 2025-03 |
| Friends of the Rio de Flag | Flagstaff | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Friends of the Santa Catalina Trails | Tucson | 501(c)(3) | 2022 | $0 | $0 | 2026-06 |
| Friends of the Sonoran Desert Inc | Tucson | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Furniture Angel Inc | Scottsdale | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Futuro Seguro LLC | Phoenix | 501(c)(3) | 2026 | |||
| Garden Exchange Stands Org | Mesa | 501(c)(3) | 2024 | |||
| Garden Social Community Impact | Maricopa | 501(c)(3) | 2025 | |||
| Gather and Grow | Phoenix | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Gila Valley Conservation Education Center | Safford | 501(c)(3) | 2000 | $0 | $0 | 2025-06 |
| Gilbert Parks and Recreation Foundation | Gilbert | 501(c)(3) | 2001 | |||
| Givinbak Bikes Laveen | Laveen | 501(c)(3) | 2025 | |||
| Global Ocean Advocates | Phoenix | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Grand Canyon Hikers and Backpackers Association Inc | Flagstaff | 501(c)(3) | 2002 | $0 | $0 | 2025-12 |
| Grand Canyon Private Boaters Association | Phoenix | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Grande FC Inc | Casa Grande | 501(c)(3) | 2024 | $0 | $0 | 2025-01 |
| Gray Hawk Nature Center | Sierravista | 501(c)(3) | 2000 | $0 | $0 | 2025-06 |
| Greater Range Opportunities | Mayer | 501(c)(3) | 2024 | $1 | 2024-12 | |
| Green Spirits Healing Corp | Vail | 501(c)(3) | 2024 | $0 | $0 | 2026-01 |
| Greendesert Foundation | Phoenix | 501(c)(3) | 2023 | $0 | $0 | 2025-08 |
| Greenhouse Gang | Yuma | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Greenlee Gardens-Clifton Site | Morenci | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Growing Green | Phoenix | 501(c)(3) | 2023 | $0 | $0 | 2025-11 |
| Habitat Conservation Group Inc | Mesa | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Halt Hurricanes | Cornville | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Hashers Not Trashers | Tucson | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Havasu Riviera Trail Coalition | LK Havasu Cty | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Having Kids | Tucson | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Hawaiian Silversword Foundation | Tucson | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| High Country Garden Club | Payson | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| High Country Xeriscape Council of Arizona | Payson | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| High Desert Helpers Inc | Black Cyn Cty | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Hipocampo | Mesa | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Hlpfull | Payson | 501(c)(3) | 2024 | |||
| Holistic Ecosystem Approaches for Land and Life | Tucson | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Holliday Family Foundation Inc | Tempe | 501(c)(3) | 2022 | $8,723 | 2024-12 | |
| Honeybee Haven Inc | Rimrock | 501(c)(3) | 2026 | |||
| Hope Grows Arizona | Snowflake | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Huachuma Foundation | New River | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| In Ardua Petit | Chandler | 501(c)(3) | 2010 | $0 | $0 | 2024-12 |
| Institute for Forest Health | Prescott | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Jaime Garcia Family Foundation | Tempe | 501(c)(3) | 2022 | $187,161 | 2025-12 | |
| Just A Little Greener Inc | Sonoita | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Kachina Peaks Avalnche Center Inc | Flagstaff | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Katowa Homeowners Association | Flagstaff | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Keep Havasu Beautiful Committee | LK Havasu Cty | 501(c)(3) | 1999 | $0 | $0 | 2026-06 |
| Keep Tempe Beautiful | Tempe | 501(c)(3) | 2021 | $0 | $0 | 2026-06 |
| Kodc | Gilbert | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| LRS Restoration | Scottsdale | 501(c)(3) | 2025 | |||
| La Paz County Stockmens Association | Salome | 501(c)(5) | 2016 | $0 | $0 | 2025-12 |
| Lake Havasu Boat Patrol Inc | LK Havasu Cty | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Land for Wildlife Foundation | Yuma | 501(c)(3) | 2020 | $2,579 | 2023-07 | |
| Landscape Stewardship Collective | Flagstaff | 501(c)(3) | 2025 | $0 | $0 | 2026-04 |
| Lighthouse Club | LK Havasu Cty | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Living Desert Alliance | Cortaro | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Loma Linda Neighborhood Association | Phoenix | 501(c)(3) | 2015 | $0 | $0 | 2025-06 |
| Love Yours University LLC | Phoenix | 501(c)(3) | 2023 | |||
| Lower San Pedro Watershed Alliance | Mammoth | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Madre Tierra Foundation | Phoenix | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Maps Edge Land & Heritage Conservan Cy | Youngtown | 501(c)(3) | 2026 | $0 | $0 | 2025-11 |
| Maricopa Bird Alliance | Queen Creek | 501(c)(3) | 1968 | $0 | $0 | 2026-05 |
| Martin Strel Foundation Inc | Mesa | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Milagro Community Garden & Chicken Farm | Tucson | 501(c)(3) | 2025 | |||
| Millennial Food Gardens Inc | Phoenix | 501(c)(3) | 2025 | |||
| Mount Graham Coalition Inc | Tucson | 501(c)(3) | 1993 | $0 | $0 | 2024-12 |
| Munds Park Trail Stewards Inc | Phoenix | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| National Alliance of Energy Practitioners | Marana | 501(c)(3) | 2023 | $0 | $0 | 2025-10 |
| National Conservation Law Enforcement Education Foundation I | Phoenix | 501(c)(3) | 2016 | $0 | $21,694 | 2025-12 |
| National Parks and Naps Association | Phoenix | 501(c)(3) | 2026 | |||
| Native West Press | Prescott | 501(c)(3) | 2006 | $0 | $0 | 2025-06 |
| Natural Allies | Tucson | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| Navopatia Field Station | Tucson | 501(c)(3) | 2002 | $0 | $0 | 2026-04 |
| Nde Bikeeya Chiricahua Apache Land Trust | Pearce | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Neighbors of the Mogollon Rim Inc | Sun Lakes | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Neotropic Foundation | Tucson | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| New Beginnings Liberia | San Tan Vly | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Nihookaa Diyin Dine Protectors Organization | Tuba City | 501(c)(3) | 2025 | |||
| Nirvanaeco LLC | Tempe | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| North East Arizona Energy Services Company | Concho | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Northern Arizona Audubon Society Inc | Sedona | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Northern Arizona Grotto | Prescott Vly | 501(c)(3) | 1999 | $0 | $0 | 2024-12 |
| Novelect | Phoenix | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Oak Creek Environmental Awareness N Etwork Inc | Sedona | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Ocean Angels Inc | Show Low | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Olivo Foundation | Scottsdale | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| One Street Inc | Prescott | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Onepair Charity | Peoria | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Oracle Community Learning Garden Inc | Oracle | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Organization of Fish & Wildlife Information Managers | Phoenix | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Payson Fly Casters | Cave Creek | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Peakview Environmental Solutions Corp | Phoenix | 501(c)(3) | 2024 | |||
| Peoples Land Collaborative | Keams Canyon | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Phoenix Ophthalmic Business Society | Peoria | 501(c)(6) | 2024 | $0 | $0 | 2026-06 |
| Pilgrim Edward Doty Scoiety | Prescott | 501(c)(3) | 1985 | $0 | $0 | 2025-12 |
| Pima Center for Conservation Education | Tucson | 501(c)(3) | 1996 | $0 | $0 | 2026-06 |
| Plastic Free Phoenix | Tempe | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Prescott Trail Riders Association | Prescott | 501(c)(3) | 2026 | |||
| Preserve Vistoso | Oro Valley | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Preserving Arizona Wilderness | Prescott | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Project 10 & 18 International | Pine | 501(c)(3) | 2023 | |||
| Project Wildlife Bisbee Inc | Bisbee | 501(c)(3) | 2024 | |||
| Protect Our Preserve | Scottsdale | 501(c)(4) | 2018 | $0 | $0 | 2025-12 |
| Pure Harvest Inc | Laveen | 501(c)(3) | 2026 | |||
| Queen Creek Coalition | Scottsdale | 501(c)(3) | 2014 | $4,783 | 2025-12 | |
| Re-Cycle | Glendale | 501(c)(3) | 2025 | |||
| Reister Conservation Foundation | Phoenix | 501(c)(3) | 2002 | $26,731 | 2024-12 | |
| Rescued By Rembrandt | Oro Valley | 501(c)(3) | 2024 | $0 | $0 | 2025-05 |
| Restoration Angel | Gilbert | 501(c)(3) | 2024 | $0 | $0 | 2025-01 |
| Reusing the Right Way Incorporated | Tucson | 501(c)(3) | 2024 | $0 | $0 | 2023-12 |
| Rillito River Project | Tucson | 501(c)(3) | 2009 | $0 | $0 | 2024-12 |
| Rocky Acres Environmental Protection Association | Phoenix | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Root Cause Advocates Inc | Cornville | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Roots To Resilience | Flagstaff | 501(c)(3) | 2025 | |||
| Rubberized Asphalt Foundation | Scottsdale | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| S Blue Jay Road Maintenance Association | Prescott | 501(c)(3) | 2023 | $0 | $0 | 2026-04 |
| S-Cuk Son Land Trust | Tucson | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| SRT Outdoors Inc | Glendale | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Salty Scuba Squad Inc | Scottsdale | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Santa Cruz County Shinning Az | Rio Rico | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Save North Texas Lakes | Phoenix | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Save Our Resources Inc | Phoenix | 501(c)(3) | 2018 | $0 | $507,735 | 2025-12 |
| Schoolyard Habitat Foundation | Peoria | 501(c)(3) | 2007 | |||
| Science of Light | Surprise | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Scottsdale District Administrators Association | Scottsdale | 501(c)(5) | 2025 | |||
| Seeds Community Center | Tucson | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Serenity Compassion Ministries Inc | Avondale | 501(c)(3) | 2023 | $0 | $0 | 2025-06 |
| Sherman Pines Homeowners Association | Prescott | 501(c)(12) | 2013 | $0 | $0 | 2025-08 |
| Sierra Family Career and Life Long Learning Consortium | Sierra Vista | 501(c)(3) | 2024 | |||
| Siete Casa Corporation | Tucson | 501(c)(12) | 2018 | $0 | $0 | 2024-12 |
| Silver Creek Preserve | Scottsdale | 501(c)(3) | 2001 | $30,366 | 2025-09 | |
| Silvery Colorado River Rock Club Inc | Bullhead City | 501(c)(7) | 2016 | $0 | $0 | 2025-12 |
| Sky Island Preservation Society | Elfrida | 501(c)(3) | 2024 | |||
| Skyharvest | Sedona | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Society for the Preservation of Sedona Ridge Inc | Sedona | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Sonoran Conservancy of Fountain Hills | Fountain HLS | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Sonoran Desert Mountain Bicyclists | Tucson | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Sonoran Valor | Goodyear | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| South Phoenix Community Association | Phoenix | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Southern Arizona Accessible Wildlife Refuge | Tucson | 501(c)(3) | 2022 | $0 | $0 | 2025-09 |
| Southwest Archaeology Team Inc | Tempe | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Southwest Uplands Conservancy Inc | Phoenix | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Southwest Wildlands Council | Rimrock | 501(c)(3) | 2026 | |||
| Southwestern Communities Coalition Inc | Scottsdale | 501(c)(3) | 2021 | $0 | $0 | 2023-12 |
| Stream of Life | Chandler | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Sulphur Springs Valley Young Birders Club | Willcox | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Sun Corridor Trail Alliance | Flagstaff | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Sunnyside Neighborhood Association | Tucson | 501(c)(3) | 1997 | $0 | $0 | 2025-12 |
| Superstition Area Land Trust | Apache JCT | 501(c)(3) | 1994 | $0 | $0 | 2025-08 |
| Support Public Lands | Phoenix | 501(c)(3) | 2021 | $0 | $0 | 2023-12 |
| Sustainability Consortium Corp | Tempe | 501(c)(3) | 2017 | |||
| Sweet Pines Family Foundation | Prescott | 501(c)(3) | 2019 | $239,498 | 2024-12 | |
| Sweetwater Center | Tucson | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Teaching Tiny Botanists | Phoenix | 501(c)(3) | 2025 | |||
| Terra | Gilbert | 501(c)(3) | 2024 | $0 | $0 | 2025-02 |
| Terrasante Village | Tucson | 501(c)(3) | 2011 | $843 | 2025-12 | |
| The Grief Renewal Project Inc | Mesa | 501(c)(3) | 2026 | |||
| The Sanders House Inc | Queen Creek | 501(c)(3) | 2024 | |||
| The Sonoran Foundation | Phoenix | 501(c)(3) | 2026 | |||
| The Urban Miner Project | Phoenix | 501(c)(3) | 2025 | |||
| Thirst Cure | Tucson | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Thunderbeard Outdoor Restoration Organization | Cornville | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Tierra Del Sol Institute | Tucson | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Tierrascape Improvements Charities | El Mirage | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Tonto Gravity Riders | Apache JCT | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Tortolita Alliance | Tucson | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Townsite Urban Farm | Flagstaff | 501(c)(3) | 2023 | $0 | $0 | 2026-01 |
| Trail Partners of Arizona | Sedona | 501(c)(3) | 2025 | |||
| Trash Dogs | Cottonwood | 501(c)(3) | 2022 | $0 | $0 | 2026-02 |
| Tribal Energy Solutions | Scottsdale | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Tristans Trees | Phoenix | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Tucscon Bonsai Society | Tucson | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Tucson Garden Railway Society | Tucson | 501(c)(3) | 2007 | $0 | $0 | 2025-06 |
| Tucson Orchid Society | Tucson | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Tucson-Oro Valley Citizens Climate Education | Tucson | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Underground Arizona Inc | Tucson | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Underground Conservancy | Prescott | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Unity 5 LTD | Sun City West | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Upper Eagle Creek Watershed Association | Willcox | 501(c)(3) | 2005 | $0 | $0 | 2025-09 |
| Upper Santa Cruz Providers and Users Group | Green Valley | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Urban Farming Education | Phoenix | 501(c)(3) | 2018 | $78,883 | 2025-12 | |
| Vulture City Preservation | Wickenburg | 501(c)(3) | 2024 | |||
| Waffle Forest | Phoenix | 501(c)(3) | 2021 | $0 | $0 | 2023-12 |
| Waste Free Society | Queen Creek | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Water Alliance of La Paz County | Wenden | 501(c)(3) | 2026 | |||
| Water and Environmental Leadership for Longevity | Sierra Vista | 501(c)(3) | 2024 | |||
| Western Yavapai Conservation Education Center | Prescott | 501(c)(3) | 1995 | $0 | $0 | 2026-06 |
| White Mountain Community Garden | Show Low | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| White Mountain Lakes Foundation Inc | Show Low | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| White Mountain Land Alliance Inc | Pinetop | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Wickenburg Dark Sky Association | Wickenburg | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Wild and Free Conservation | Mesa | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Willcox San Simon Resource Center for Environmental Education | Willcox | 501(c)(3) | 1997 | $0 | $0 | 2025-12 |
| Windy River Institute Trust | Kingman | 501(c)(3) | 2015 | $0 | $0 | 2023-12 |
| Winkelman Resource Management Center | Kearny | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Winslow Sweetland Community Garden | Winslow | 501(c)(3) | 2017 | $0 | $0 | 2026-06 |
| Wolf Robe Foundation | Peoria | 501(c)(3) | 2018 | $721,289 | 2025-12 | |
| Yavapai Trails Association | Prescott | 501(c)(3) | 1995 | $0 | $0 | 2025-12 |
| Verde Natural Resource Conservation District Ed Center | Camp Verde | 501(c)(3) | 2015 | $-10,293 | $3,538 | 2026-06 |
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.