Environment nonprofits in California
Environment nonprofits in California. Browse 4,392 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
- Thrappas Memorial Foundation
EIN 934651360 · Headquarters: San Diego, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Thrive Conservation
EIN 851037276 · Headquarters: Sacramento, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Thrive Tribe Foundation
EIN 464093810 · Headquarters: LOS ANGELES, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Thriving Table Inc
EIN 455585345 · Headquarters: San Leandro, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tide and Thread Foundation
EIN 334497127 · Headquarters: Hayward, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Tidy Seas
EIN 992007470 · Headquarters: GOLETA, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tierramar Science Institute
EIN 854116429 · Headquarters: SACRAMENTO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Tis Greentech
EIN 873263524 · Headquarters: Irvine, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-T
- Toastmasters International
EIN 900522344 · Headquarters: Irvine, CA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Together Bay Area
EIN 461573954 · Headquarters: BERKELEY, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Together SF
EIN 871217233 · Headquarters: San Francisco, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Toluca Lake Beautification Partners
EIN 882868035 · Headquarters: BURBANK, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Tom Woods Memorial Foundation
EIN 371449390 · Headquarters: Santa Rosa, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Tomales Bay Watershed Council Foundation Tomales Bay Foundation
EIN 562464115 · Headquarters: Point Reyes Station, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Tomales Village Community Services District
EIN 942598864 · Headquarters: Tomales, CA, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Tomorrow Inc
EIN 010922523 · Headquarters: Carlsbad, CA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Tomorrows Green
EIN 831098010 · Headquarters: Santa Barbara, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Tompkins Conservation
EIN 943363675 · Headquarters: SAN FRANCISCO, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Tongva Land Preservation Corporation
EIN 823079945 · Headquarters: Santa Monica, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Topographical Shifts
EIN 800619228 · Headquarters: San Francisco, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Torchbearr
EIN 873096046 · Headquarters: Somes Bar, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Tosv Inc
EIN 882557544 · Headquarters: REDWOOD CITY, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Total Altruistic Project Foundation
EIN 853296813 · Headquarters: SAN DIEGO, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Towards Freedom
EIN 330881762 · Headquarters: VAN NUYS, CA, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ
- Town Creek Association
EIN 842573889 · Headquarters: Paso Robles, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Town Hall Coalition
EIN 680458664 · Headquarters: Occidental, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Toxic-Free OC
EIN 934184651 · Headquarters: San Juan Capistrano, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Toy Project Inc
EIN 853785964 · Headquarters: PORTOLA VALLY, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Trace Club Inc
EIN 932803980 · Headquarters: LOS ANGELES, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Trail Running Advocates of Southern California
EIN 850797476 · Headquarters: Altadena, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Trans-atlantic Environmental Inc
EIN 272481346 · Headquarters: ELK GROVE, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Transformation Arts
EIN 464457312 · Headquarters: Los Angeles, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Transformative Collective Institute Inc
EIN 993665317 · Headquarters: Tehachapi, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Transformed Heart
EIN 463354457 · Headquarters: Del Mar, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Transition Habitat Conservancy
EIN 743146328 · Headquarters: PINON HILLS, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Transition Laguna Beach Inc
EIN 264426632 · Headquarters: Laguna Beach, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Transition Us
EIN 261884389 · Headquarters: WARNER SPRINGS, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Transportation Choices for Sustainable Communities Research A
EIN 455368213 · Headquarters: Oakland, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Transportation Energy Partnership
EIN 943249538 · Headquarters: FAIRFIELD, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Transportation Solutions Defense & Education Fund
EIN 943206381 · Headquarters: San Rafael, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Trash Turtles Corp
EIN 844916908 · Headquarters: Pacific Grove, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Trato Foundation Inc
EIN 473981538 · Headquarters: Newport Beach, CA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Travel Backyard
EIN 814810435 · Headquarters: MOUNTAIN VIEW, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Tree Amigos of Orcutt
EIN 261149505 · Headquarters: Orcutt, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tree Branch Corp
EIN 863656789 · Headquarters: Sunland, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tree Carbon Solutions
EIN 331348018 · Headquarters: CLOVERDALE, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Tree Corps Foundation
EIN 844150002 · Headquarters: SAN DIEGO, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Tree Culture Institute
EIN 334091616 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tree Foundation of Kern Inc
EIN 770359397 · Headquarters: BAKERSFIELD, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Tree Fresno
EIN 770160804 · Headquarters: Fresno, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Tree Guild of Arroyo Grande Inc
EIN 264127500 · Headquarters: Arroyo Grande, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Tree Happy Inc
EIN 863031426 · Headquarters: Aliso Viejo, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Tree Lodi
EIN 043832722 · Headquarters: WOODBRIDGE, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Tree Musketeers
EIN 954277842 · Headquarters: EL SEGUNDO, CA, USA · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990
- Tree Partners Foundation
EIN 201681167 · Headquarters: ATWATER, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Tree San Diego
EIN 465183143 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Tree Stockton
EIN 334380784 · Headquarters: Stockton, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tree Swallow Nesting Projects Inc
EIN 770437605 · Headquarters: Camarillo, CA, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Treecycling Inc
EIN 453988299 · Headquarters: LA JOLLA, CA, USA · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-PF
- Treedom Landscapes
EIN 853078019 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Treepeople Inc
EIN 237314838 · Headquarters: BEVERLY HILLS, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Trees 1000 Foundation
EIN 823099664 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-PF
- Trees Allies
EIN 994746393 · Headquarters: Pinon Hills, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Trees and Things Inc
EIN 800218599 · Headquarters: San diego, CA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Trees for Seal Beach
EIN 330883221 · Headquarters: SEAL BEACH, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- TreeSisters Women Seeding Change
EIN 843467752 · Headquarters: Nevada City, CA, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Trek Relief
EIN 815114205 · Headquarters: ALHAMBRA, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Tri City Economic Development Corporation
EIN 942687078 · Headquarters: UNION CITY, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Tri-city Peace and Justice
EIN 900196800 · Headquarters: Fremont, CA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Tri-county Hazmat Assoc
EIN 680534409 · Headquarters: buellton, CA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Tri-county Watchdogs Inc
EIN 263796865 · Headquarters: Pine Mountain Club, CA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Trib Research
EIN 861463575 · Headquarters: Arcata, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Tribal Eco Restoration Alliance
EIN 991079532 · Headquarters: Upper Lake, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Tribal Sacred Waters Inc
EIN 395162064 · Headquarters: Santa Ysabel, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Trinidad Coastal Land Trust
EIN 942552913 · Headquarters: Trinidad, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Trinity Garden Club
EIN 464799927 · Headquarters: WEAVERVILLE, CA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Troot Inc
EIN 923863356 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Trout Unlimited
EIN 263315149 · Headquarters: Smith River, CA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Truckee Dirt Union
EIN 852238195 · Headquarters: Truckee, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Truckee Donner Land Trust
EIN 680245327 · Headquarters: TRUCKEE, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Truckee River Public Waters
EIN 994915824 · Headquarters: SAN FRANCISCO, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Truckee River Watershed Council
EIN 911818748 · Headquarters: Truckee, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Truckee Trails Foundation Inc
EIN 010601303 · Headquarters: Truckee, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Truconnected Inc
EIN 332647843 · Headquarters: West Hollywood, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- True Nature Environmental Restoration Foundation
EIN 994369058 · Headquarters: San Leandro, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- True Nature Society Quail Springs
EIN 383692928 · Headquarters: MARICOPA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- True Wild Conservation Foundation
EIN 395067030 · Headquarters: Glen Ellen, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Trust for Hidden Villa
EIN 941539836 · Headquarters: LOS ALTOS HILLS, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Trust for Public Land
EIN 942313970 · Headquarters: San Francisco, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Trust for Public Land
EIN 942526746 · Headquarters: San Francisco, CA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Trust for Working Lands
EIN 473868468 · Headquarters: Santa Rosa, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Truth with Food
EIN 824489758 · Headquarters: LA CANADA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Tubb Canyon Desert Conservancy
EIN 452818803 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tulare Basin Watershed Partnership A California Nonprofit Public
EIN 753192859 · Headquarters: FRESNO, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Tulare Basin Wetlands Association
EIN 770387394 · Headquarters: Wasco, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Tule Basin Land & Water Conservation Trust
EIN 850956594 · Headquarters: TULARE, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Tule Basin Water Quality Coalition
EIN 854150967 · Headquarters: VISALIA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Tule River Parkway Assn
EIN 770317019 · Headquarters: Porterville, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tuleyome
EIN 680522325 · Headquarters: WOODLAND, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Tuolumne County Citizens for Responsible Growth Inc
EIN 721606151 · Headquarters: Sonora, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N