Science & Technology nonprofits in California
Science & Technology nonprofits in California. Browse 1,397 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
- Redwood Research Group Inc
EIN 871702255 · Headquarters: BERKELEY, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- Refact
EIN 334683968 · Headquarters: Los Gatos, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Refrigerating Engineers & Technicians Association-ca Chapter No 2
EIN 953887227 · Headquarters: NORWALK, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Refrigerating Engineers Technicians Association
EIN 912005050 · Headquarters: Modesto, CA, USA · Science & Technology · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ
- Refrigeration Service Engineers Society
EIN 911829590 · Headquarters: Barstow, CA, US · Science & Technology · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Refrigeration Service Engineers Society
EIN 942899639 · Headquarters: PLEASANT HILL, CA, US · Science & Technology · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Refrigeration Service Engineers Society
EIN 946103400 · Headquarters: Sacramento, CA, US · Science & Technology · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Refrigeration Service Engineers Society
EIN 956095441 · Headquarters: Escondido, CA, US · Science & Technology · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Refrigeration Service Engineers Society
EIN 956097131 · Headquarters: San Luis Obispo, CA, US · Science & Technology · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Refrigeration Service Engineers Society
EIN 956137449 · Headquarters: Downey, CA, US · Science & Technology · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Refrigeration Service Engineers Society
EIN 956137451 · Headquarters: Downey, CA, US · Science & Technology · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Refrigeration Service Engineers Society
EIN 956137454 · Headquarters: Riverside, CA, US · Science & Technology · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Refrigeration Service Engineers Society
EIN 956137460 · Headquarters: Lancaster, CA, US · Science & Technology · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Refrigeration Services Engineers Society
EIN 911903920 · Headquarters: Riverside, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Refrigeration Sevice Engineers Society
EIN 956119051 · Headquarters: Riverside, CA, US · Science & Technology · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Representation Foundation
EIN 455371694 · Headquarters: Encino, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Reptile Recon
EIN 475573176 · Headquarters: WINCHESTER, CA, US · Science & Technology · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Research Advantage Institute
EIN 471815661 · Headquarters: Windsor, CA, US · Science & Technology · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Reservoir Engineering Research Institute
EIN 770238044 · Headquarters: Palo Alto, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- Responsible Ai Collaborative Inc
EIN 881046583 · Headquarters: SACRAMENTO, CA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Responsible Innovation Labs Inc
EIN 853338067 · Headquarters: San Francisco, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- Reverse Shell Corporation
EIN 834451458 · Headquarters: Redondo Beach, CA, US · Science & Technology · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Revolution Robotics Foundation Inc
EIN 824388277 · Headquarters: SAN FRANCISCO, CA, USA · Science & Technology · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Rhiza Research Inc
EIN 991475650 · Headquarters: OAKLAND, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- Richard H Mccullough Phd Context Knowledge Systems
EIN 465009617 · Headquarters: NAPA, CA, USA · Science & Technology · Latest available filing year: 2015 · Primary form: IRS Form 990-PF
- Ridiculous Radio Research
EIN 990502121 · Headquarters: Chula Vista, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rigel Institute for Science Education
EIN 270303375 · Headquarters: Gardena, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rio Americano Science Boosters Inc
EIN 680346226 · Headquarters: SACRAMENTO, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Risingtides Inc
EIN 205986383 · Headquarters: Acton, CA, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Riverside San Bernardino Institute of Transportation Engineers
EIN 813768252 · Headquarters: Rancho Cucamonga, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Riverside Telescope Makers Conference Inc
EIN 330419627 · Headquarters: Riverside, CA, US · Science & Technology · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Rnd4impact Inc
EIN 844438175 · Headquarters: San Jose, CA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990
- Robot Learning Foundation Inc
EIN 883454889 · Headquarters: CUPERTINO, CA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990
- Robotic Education and Drone Ac Red
EIN 833600134 · Headquarters: SAN BERNARDINO, CA, USA · Science & Technology · Latest available filing year: 2022 · Primary form: IRS Form 990
- Robotics Society of America
EIN 770042945 · Headquarters: Mill Valley, CA, US · Science & Technology · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Robozilla Robotics Inc
EIN 471469291 · Headquarters: Riverside, CA, US · Science & Technology · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Robyn Dawes Institute for the Improvement of Science
EIN 334367909 · Headquarters: Berkeley, CA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Root Access Hackerspace
EIN 992882969 · Headquarters: Fresno, CA, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Rrrcomputer Inc
EIN 832332271 · Headquarters: Oakland, CA, USA · Science & Technology · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Rv Pilar Inc
EIN 861327444 · Headquarters: SAN DIEGO, CA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Sacred Spaces
EIN 943273322 · Headquarters: San Francisco, CA, US · Science & Technology · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Sae Aero Design Inc
EIN 824630009 · Headquarters: Stanford, CA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Safenai Association
EIN 393779025 · Headquarters: San Jose, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Salk Institute for Biological Studies
EIN 952160097 · Headquarters: La Jolla, CA, United States · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sampe Foundation
EIN 205072613 · Headquarters: CLAREMONT, CA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- San Benito County Robotics Inc
EIN 921942969 · Headquarters: Hollister, CA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- San Bernardino Microwave Society
EIN 450588759 · Headquarters: Norco, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Diego Architectural Foundation
EIN 953513927 · Headquarters: San Diego, CA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990
- San Diego Astrological Society
EIN 510135672 · Headquarters: SAN DIEGO, CA, US · Science & Technology · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- San Diego Astronomy Association Foundation
EIN 992163812 · Headquarters: SAN DIEGO, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- San Diego County Teamsters Training and Retraining Trust
EIN 510193142 · Headquarters: ALAMEDA, CA, USA · Science & Technology · Latest available filing year: 2014 · Primary form: IRS Form 990
- San Diego for Science
EIN 822749652 · Headquarters: San Diego, CA, US · Science & Technology · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- San Diego Geological Society Inc
EIN 263864747 · Headquarters: San Diego, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- San Diego Innovation Council Inc
EIN 824290296 · Headquarters: Carlsbad, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Diego Institute of Biological Research
EIN 264460338 · Headquarters: Irvine, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Diego Marine Aquarists
EIN 823466459 · Headquarters: Cardiff by the Sea, CA, US · Science & Technology · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- San Diego Nsbe Professionals
EIN 473156991 · Headquarters: San Diego, CA, US · Science & Technology · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- San Diego Science Alliance
EIN 330806707 · Headquarters: Encinitas, CA, USA · Science & Technology · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ
- San Diego Science Educators Assoc
EIN 330245354 · Headquarters: San Diego, CA, US · Science & Technology · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- San Diego Shell Club
EIN 953370350 · Headquarters: Encinitas, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Francisco Amateur Astronomers Inc Josephine Randall Museum
EIN 946104094 · Headquarters: San Francisco, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Francisco Engineering Technology Group
EIN 942951490 · Headquarters: San Francisco, CA, US · Science & Technology · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- San Francisco Gem & Mineral Society
EIN 946087317 · Headquarters: San Francisco, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Francisco Sidewalk Astronomers
EIN 237218255 · Headquarters: Los Angles, CA, US · Science & Technology · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- San Joaquin Engineers Council
EIN 911781060 · Headquarters: Stockton, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Luis Obispo Gem & Mineral Club
EIN 952373779 · Headquarters: San Luis Obispo, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Santa Barbara Mineral & Gem Society
EIN 956071411 · Headquarters: Santa Barbara, CA, US · Science & Technology · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Santa Barbara Women in Stem
EIN 384380701 · Headquarters: Santa Barbara, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Santa Clara Gem and Mineral Society
EIN 946091572 · Headquarters: SAN JOSE, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Santa Clara Valley Mathematics Association Mathematics Dept
EIN 942792405 · Headquarters: San Jose, CA, US · Science & Technology · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Santa Cruz Mineral and Gem Society Inc
EIN 946104503 · Headquarters: Santa Cruz, CA, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Santa Rosa Mineral & Gem Society Inc
EIN 721603379 · Headquarters: Santa Rosa, CA, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Santa Rosa Plateau Foundation
EIN 710946697 · Headquarters: Murrieta, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sapienne
EIN 333389693 · Headquarters: San Francisco, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sarate Design
EIN 331994027 · Headquarters: Alameda, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Save Forward Corp
EIN 932243092 · Headquarters: Sacramento, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- SBU Research Center
EIN 820882943 · Headquarters: Los Angeles, CA, USA · Science & Technology · Latest available filing year: 2020 · Primary form: IRS Form 990
- Scamvaxx
EIN 994172886 · Headquarters: Cypress, CA, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Schmidt Ocean Institute
EIN 264562328 · Headquarters: Palo Alto, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Science & Design Inc
EIN 920421940 · Headquarters: BELMONT, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Science Against Evolution
EIN 770430279 · Headquarters: Ridgecrest, CA, US · Science & Technology · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Science and Engineering Council of Santa Barbara
EIN 952491615 · Headquarters: Carpinteria, CA, US · Science & Technology · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Science and Technology Educ Partnership
EIN 330928247 · Headquarters: Riverside, CA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Science Communication Lab Inc
EIN 472404616 · Headquarters: BERKELEY, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- Science Connected
EIN 811189171 · Headquarters: San Francisco, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Science for the Church
EIN 881178951 · Headquarters: CHICO, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Science Mentorship Institute
EIN 881322428 · Headquarters: San Jose, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Science Partnership Fund
EIN 810702798 · Headquarters: PASADENA, CA, US · Science & Technology · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Scientific Analysis Corporation
EIN 946138266 · Headquarters: Alameda, CA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990
- Scientific Being Research Foundation Inc
EIN 912026760 · Headquarters: SAN DIEGO, CA, USA · Science & Technology · Latest available filing year: 2020 · Primary form: IRS Form 990-PF
- Scientific Collaboration Innovation & Education Group - Scieg
EIN 461137145 · Headquarters: Mountain View, CA, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Scientific Society for Astrobiology
EIN 883136290 · Headquarters: Pasadena, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Scifund Challenge
EIN 465656916 · Headquarters: Santa Barbara, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Scilympiad
EIN 862531691 · Headquarters: San Diego, CA, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sciopen Research Group
EIN 462581137 · Headquarters: Aptos, CA, US · Science & Technology · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Sciserve Foundation
EIN 991217817 · Headquarters: Irvine, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Scouting Technology Alliances Inc
EIN 334661729 · Headquarters: SAN JOSE, CA, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Scv Chapter Blue Star Mothers
EIN 582667430 · Headquarters: Santa Clarita, CA, US · Science & Technology · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Sea and Space Explorations
EIN 262288507 · Headquarters: Los Angele, CA, US · Science & Technology · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Sea to Sky Explorers Association
EIN 992617515 · Headquarters: Berkeley, CA, US · Science & Technology · Latest available filing year: 2023 · Primary form: IRS Form 990-N