Data / Nonprofits / California / Science and technology
Science and technology nonprofits in California: 1,142 registered with the IRS
1,142 science and technology nonprofits are registered with the IRS in California, 1,110 of them 501(c)(3) charities; the 373 that report revenue took in $2.29 billion. The most are in San Francisco (88), San Diego (81), Sacramento (52). The largest by revenue: Sri International ($437.9 million), Climateworks Foundation ($350.6 million), Alfred E Mann Foundation for Scientific Research ($257.9 million).
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The 500 largest by revenue
| Organization | City | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Sri International | Menlo Park | 501(c)(3) | 1949 | $437.9 million | $409.6 million | 2024-12 |
| Climateworks Foundation | San Francisco | 501(c)(3) | 2009 | $350.6 million | $533.1 million | 2024-12 |
| Alfred E Mann Foundation for Scientific Research | Santa Clarita | 501(c)(3) | 1986 | $257.9 million | $567.9 million | 2026-03 |
| Internet Corporation for Assigned Names and Numbers | Los Angeles | 501(c)(3) | 2000 | $194.9 million | $614.9 million | 2025-06 |
| Salk Institute for Biological Studies | La Jolla | 501(c)(3) | 1961 | $181.4 million | $836.1 million | 2025-06 |
| Gmto Corporation | Pasadena | 501(c)(3) | 2009 | $46.7 million | $474.1 million | 2025-06 |
| Public Library of Science | San Francisco | 501(c)(3) | 2002 | $41.3 million | $32.8 million | 2024-12 |
| Mozilla Foundation | San Francisco | 501(c)(3) | 2004 | $37.2 million | $123.3 million | 2024-12 |
| Mind Education | Irvine | 501(c)(3) | 1999 | $31.3 million | $37.1 million | 2025-06 |
| Anita Borg Institute for Women and Technology | Sacramento | 501(c)(3) | 1998 | $27.5 million | $23.7 million | 2024-12 |
| Seti Institute | Mountain View | 501(c)(3) | 1985 | $27.4 million | $247.1 million | 2025-09 |
| Far Ai Inc | San Diego | 501(c)(3) | 2020 | $24.3 million | $23 million | 2024-12 |
| Hack Foundation | W Hollywood | 501(c)(3) | 2016 | $22.4 million | $18.7 million | 2024-12 |
| Simons Laufer Mathematical Sciences Institute | Berkeley | 501(c)(3) | 1980 | $19.1 million | $121.5 million | 2025-07 |
| Navigation Charitable Fund | Berkeley | 501(c)(3) | 2023 | $19 million | $1.29 billion | 2024-12 |
| Open Research Lab Inc | San Francisco | 501(c)(3) | 2017 | $18.3 million | $3 million | 2024-12 |
| Altasea at the Port of Los Angeles | San Pedro | 501(c)(3) | 2014 | $18.3 million | $41.4 million | 2024-12 |
| Annual Reviews | Palo Alto | 501(c)(3) | 1948 | $17 million | $6.6 million | 2024-12 |
| Watttime Corporation | Oakland | 501(c)(3) | 2015 | $16.4 million | $17.6 million | 2025-06 |
| J Craig Venter Institute Inc | San Diego | 501(c)(3) | 1995 | $14.4 million | $39.5 million | 2024-12 |
| San Diego Astronomy Association Foundation | San Diego | 501(c)(3) | 2024 | $13.7 million | $13.6 million | 2025-06 |
| Model Evaluation and Threat Research | Covina | 501(c)(3) | 2024 | $13.6 million | $6.5 million | 2024-12 |
| Sierra Institute for Community and | Taylorsville | 501(c)(3) | 1998 | $13.3 million | $8.7 million | 2024-12 |
| TMT International Observatory LLC | Monrovia | 501(c)(3) | 2015 | $13.2 million | $227.9 million | 2024-12 |
| Constellation Institute Inc | Berkeley | 501(c)(3) | 2024 | $12.6 million | $18.3 million | 2024-12 |
| Accumulus Synergy Inc | Burlingame | 501(c)(6) | 2022 | $11.1 million | $12.3 million | 2024-12 |
| Center for Artificial Intelligence Safety Inc | San Francisco | 501(c)(3) | 2023 | $10.2 million | $12.6 million | 2024-12 |
| Public Technical Identifiers | Los Angeles | 501(c)(3) | 2019 | $10.1 million | $328,708 | 2025-06 |
| Society for Advancement of Chicanos & Native Americans in Science Inc | San Jose | 501(c)(3) | 1987 | $9.9 million | $13.7 million | 2024-12 |
| New Public | Oakland | 501(c)(3) | 2023 | $9.8 million | $8.7 million | 2025-12 |
| The Foresight Institute | San Francisco | 501(c)(3) | 1991 | $9.4 million | $8.9 million | 2024-12 |
| International Conference On Machine Learning | San Diego | 501(c)(3) | 2022 | $9 million | $10.9 million | 2025-12 |
| Partnership On Ai To Benefit People and Society | San Francisco | 501(c)(3) | 2018 | $9 million | $8.4 million | 2024-12 |
| Spark NS Inc | Menlo Park | 501(c)(3) | 2024 | $9 million | $3.9 million | 2024-12 |
| Ought Inc | Covina | 501(c)(3) | 2018 | $8.2 million | $10.1 million | 2025-02 |
| Chabot Space & Science Center Foundation | Oakland | 501(c)(3) | 2026 | $7.3 million | $8.4 million | 2025-09 |
| Distributed Artificial Intelligence Research Institute | Oakland | 501(c)(3) | 2024 | $7.1 million | $5.7 million | 2025-06 |
| Clarity Ai Research Inc | San Francisco | 501(c)(3) | 2024 | $6.9 million | $6.3 million | 2024-12 |
| Oak Crest Institute of Science | Monrovia | 501(c)(3) | 1998 | $6.5 million | $6 million | 2024-12 |
| Mats Research Inc | Berkeley | 501(c)(3) | 2024 | $6.3 million | $3.6 million | 2024-12 |
| Meedan Inc | San Francisco | 501(c)(3) | 2007 | $6.3 million | $5.1 million | 2025-12 |
| Center for Humane Technology | San Francisco | 501(c)(3) | 2018 | $5.8 million | $6.1 million | 2025-06 |
| Mind Research Institute Inc | Irvine | 501(c)(3) | 2022 | $5.7 million | $2.9 million | 2025-06 |
| Electrochemistry Foundry Inc | Castro Valley | 501(c)(3) | 2025 | $5.7 million | $9.6 million | 2025-12 |
| Aquaya Institute | Fairfax | 501(c)(3) | 2006 | $5.6 million | $7.6 million | 2025-12 |
| Technovation | Menlo Park | 501(c)(3) | 2007 | $5.6 million | $4.2 million | 2024-12 |
| B612 Foundation | Mill Valley | 501(c)(3) | 2003 | $5.6 million | $6.3 million | 2024-12 |
| Open Molecular Software Foundation | Berkeley | 501(c)(3) | 2022 | $5.4 million | $3.5 million | 2024-12 |
| Alignment Research Center | Covina | 501(c)(3) | 2022 | $5.2 million | $3.7 million | 2024-12 |
| Scintillon Institute | San Diego | 501(c)(3) | 2014 | $5.1 million | $1.2 million | 2024-12 |
| Pacific Neuroscience Institute Foundation | Santa Monica | 501(c)(3) | 2016 | $5.1 million | $43.5 million | 2025-06 |
| Buckminster Fuller Institute | San Francisco | 501(c)(3) | 1984 | $5 million | $3.2 million | 2024-12 |
| Future House Inc | San Francisco | 501(c)(3) | 2022 | $4.5 million | $18.3 million | 2024-12 |
| Annual Reviews Investment Corporation | Palo Alto | 501(c)(3) | 2015 | $4.5 million | $130.2 million | 2024-12 |
| Applied Technology Council | Redwood City | 501(c)(3) | 1973 | $4.4 million | $8.7 million | 2024-12 |
| Geothermal Resources Council | Palm Springs | 501(c)(3) | 1981 | $4.3 million | $3.5 million | 2024-12 |
| Technology Matters | Palo Alto | 501(c)(3) | 2023 | $4.2 million | $2 million | 2024-12 |
| California Council On Science and Technology | Sacramento | 501(c)(3) | 1991 | $4.2 million | $44.4 million | 2024-12 |
| Consultative Group On Biological Diversity | San Francisco | 501(c)(3) | 1987 | $4 million | $4.2 million | 2024-12 |
| International Association for Safe and Ethical Artificial | San Diego | 501(c)(3) | 2024 | $4 million | $2.9 million | 2025-09 |
| American Ai Forum | San Francisco | 501(c)(3) | 2019 | $4 million | $5.5 million | 2025-12 |
| Ergo Impact Inc | San Francisco | 501(c)(3) | 2024 | $3.7 million | $3.2 million | 2025-12 |
| Larta Institute | Los Angeles | 501(c)(3) | 1997 | $3.7 million | $4.9 million | 2024-12 |
| Lora Alliance Inc | Fremont | 501(c)(6) | 2017 | $3.6 million | $1.9 million | 2024-12 |
| Institute for Security and Technology | Oakland | 501(c)(3) | 2016 | $3.6 million | $4.6 million | 2024-12 |
| Pioneer Research Laboratories | San Francisco | 501(c)(3) | 2024 | $3.6 million | $1.8 million | 2026-07 |
| Disruptive Technology Index | Beverly Hills | 501(c)(3) | 2025 | $3.5 million | $1.3 million | 2024-09 |
| Theiss Research | La Jolla | 501(c)(3) | 2006 | $3.4 million | $1.1 million | 2024-12 |
| Integral Ecology Research Center | Blue Lake | 501(c)(3) | 2005 | $3.1 million | $922,777 | 2024-12 |
| Berkeley Geochronology Center | Berkeley | 501(c)(3) | 1994 | $3 million | $19.2 million | 2026-03 |
| California Water Data Consortium | Sacramento | 501(c)(3) | 2020 | $2.9 million | $1.6 million | 2025-06 |
| Sylvia Earle Alliance Mission Blue | Napa | 501(c)(3) | 2008 | $2.8 million | $2.8 million | 2025-12 |
| Bay Area Disruptor and Startup Support Labs | Alameda | 501(c)(3) | 2019 | $2.8 million | $953,598 | 2023-12 |
| California Dental Association Foundation | Sacramento | 501(c)(3) | 1998 | $2.8 million | $3.3 million | 2024-12 |
| Conservation Science Partners Inc | Truckee | 501(c)(3) | 2011 | $2.6 million | $1.9 million | 2024-12 |
| The National Center for Science Education Inc | Oakland | 501(c)(3) | 1983 | $2.5 million | $4 million | 2025-12 |
| Institute of Noetic Sciences | Novato | 501(c)(3) | 1973 | $2.5 million | $19.2 million | 2025-06 |
| Globalplatform Inc A Delaware Corporation | Redwood City | 501(c)(6) | 2001 | $2.4 million | $2.4 million | 2025-09 |
| Computer Using Educators Inc | San Francisco | 501(c)(3) | 1987 | $2.3 million | $1.7 million | 2025-06 |
| Phoenix Bioinformatics Corporation | Newark | 501(c)(3) | 2014 | $2.2 million | $2.4 million | 2025-12 |
| Robot Learning Foundation Inc | Cupertino | 501(c)(3) | 2022 | $2.2 million | $666,969 | 2025-12 |
| Friends of Fast | Mission Hills | 501(c)(3) | 2022 | $2.2 million | $212,658 | 2024-12 |
| Foundation for Animal Care Andeducation | San Diego | 501(c)(3) | 2007 | $2.2 million | $1.2 million | 2024-12 |
| Science Communication Lab Inc | Berkeley | 501(c)(3) | 2015 | $2.2 million | $2.8 million | 2025-06 |
| Raspberry Pi Foundation North America Inc | San Francisco | 501(c)(3) | 2017 | $2.2 million | $521,370 | 2025-12 |
| Griffith Observatory Foundation | Los Angeles | 501(c)(3) | 1979 | $2 million | $2.4 million | 2025-12 |
| Unitary Fund | San Francisco | 501(c)(3) | 2018 | $2 million | $786,032 | 2024-12 |
| Mathematical Sciences Publishers | Sacramento | 501(c)(3) | 2008 | $2 million | $1.5 million | 2024-12 |
| American Institute of Mining Metallurgical and Petroleum Engine | San Ramon | 501(c)(3) | 2018 | $2 million | $12.7 million | 2024-12 |
| Earthquake Engineering Research Institute Inc | Oakland | 501(c)(3) | 1962 | $1.9 million | $5.7 million | 2024-12 |
| Womens Earth and Climate Action Network | Mill Valley | 501(c)(3) | 2013 | $1.8 million | $3.9 million | 2024-12 |
| Collaborative for Leadership in Ayres Sensory Integration | Redondo Beach | 501(c)(3) | 2018 | $1.8 million | $1.9 million | 2025-12 |
| Healthy Brains Global Initiative Inc | Rutherford | 501(c)(3) | 2022 | $1.7 million | $1.2 million | 2024-12 |
| Marine Applied Research and Exploration | Blue Lake | 501(c)(3) | 2004 | $1.7 million | $632,056 | 2025-06 |
| Treobytes Inc | San Diego | 501(c)(3) | 2018 | $1.6 million | $1.1 million | 2025-12 |
| Dryad | Davis | 501(c)(3) | 2014 | $1.6 million | $841,750 | 2025-06 |
| Dynamicland Foundation | Berkeley | 501(c)(3) | 2020 | $1.6 million | $776,846 | 2025-12 |
| Headwaters Science Institute | Soda Springs | 501(c)(3) | 2015 | $1.6 million | $1.6 million | 2025-12 |
| Molecular Medicine Research Institute | Menlo Park | 501(c)(3) | 1997 | $1.6 million | $3 million | 2023-12 |
| Machine Intelligence Research Institute Inc | Berkeley | 501(c)(3) | 2001 | $1.5 million | $16.5 million | 2024-12 |
| Protein Society | Hacienda HTS | 501(c)(3) | 1987 | $1.5 million | $3.5 million | 2024-12 |
| Tech4dev Foundation | San Francisco | 501(c)(3) | 2024 | $1.5 million | $1.3 million | 2025-06 |
| Project Invent | San Francisco | 501(c)(3) | 2019 | $1.5 million | $835,254 | 2025-06 |
| Sunwork Renewable Energy Projects | Mountain View | 501(c)(3) | 2006 | $1.5 million | $1.1 million | 2025-05 |
| Accellera Organization | Elk Grove | 501(c)(6) | 2003 | $1.4 million | $2.3 million | 2024-12 |
| Astronomical Society of the Pacific | San Francisco | 501(c)(3) | 1948 | $1.4 million | $3.3 million | 2025-09 |
| Biocom Institute | San Diego | 501(c)(3) | 2008 | $1.4 million | $403,305 | 2024-12 |
| Chemforward Foundation | San Francisco | 501(c)(3) | 2025 | $1.4 million | $2.5 million | 2025-12 |
| Elementary Institute of Science | San Diego | 501(c)(3) | 1969 | $1.3 million | $5.2 million | 2025-06 |
| Decentralized Trails & Research All | San Diego | 501(c)(3) | 2017 | $1.3 million | $2.4 million | 2025-12 |
| Scientific Analysis Corp | Alameda | 501(c)(3) | 1967 | $1.2 million | $1.4 million | 2025-12 |
| Ancient Forest Society | S Lake Tahoe | 501(c)(3) | 2021 | $1.2 million | $321,501 | 2024-12 |
| Chemical and Biologicalmicrosystems Society | San Diego | 501(c)(6) | 2006 | $1.2 million | $844,871 | 2025-12 |
| Packet Clearing House Inc | San Francisco | 501(c)(3) | 2003 | $1.2 million | $504,327 | 2025-12 |
| Mount Wilson Institute | Pasadena | 501(c)(3) | 1987 | $1.2 million | $4.3 million | 2024-12 |
| Brain Trauma Foundation Inc | Menlo Park | 501(c)(3) | 1995 | $1.2 million | $937,768 | 2024-12 |
| Mosquito and Vector Control Association of California | Sacramento | 501(c)(3) | 1971 | $1.1 million | $792,855 | 2025-06 |
| Open Biopharma Training Institute Inc | Carlsbad | 501(c)(3) | 2022 | $1.1 million | $231,411 | 2025-03 |
| Open Source Initiative | W Hollywood | 501(c)(3) | 2000 | $1.1 million | $970,107 | 2024-12 |
| Post Road Foundation | Oakland | 501(c)(3) | 2017 | $1.1 million | $4.2 million | 2024-12 |
| Council On Technology & Society | San Francisco | 501(c)(3) | 2019 | $1.1 million | $352,514 | 2023-12 |
| Galileo Project Foundation | San Diego | 501(c)(3) | 2024 | $1.1 million | $590,305 | 2025-12 |
| Carbon Cycle Institute | Petaluma | 501(c)(3) | 2015 | $1.1 million | $892,410 | 2024-05 |
| Experiment Foundation | Berkeley | 501(c)(3) | 2024 | $1 million | $1.3 million | 2025-12 |
| Vision Sciences Society Inc | Novato | 501(c)(3) | 2004 | $1 million | $411,927 | 2025-09 |
| Social Alpha Innovation Foundation | Saratoga | 501(c)(3) | 2022 | $1 million | $386,915 | 2024-12 |
| Security B-Sides | San Francisco | 501(c)(3) | 2017 | $1 million | $700,142 | 2024-12 |
| Windfall for Humanity Inc | San Diego | 501(c)(3) | 2026 | $1 million | $999,625 | 2025-12 |
| Open Earth Foundation | Playa Del Rey | 501(c)(3) | 2020 | $989,875 | $2.6 million | 2025-12 |
| Engineering Biology Research Consortium | Emeryville | 501(c)(3) | 2016 | $973,996 | $488,896 | 2025-06 |
| Data Science Alliance | San Diego | 501(c)(3) | 2020 | $968,129 | $137,160 | 2024-12 |
| Ai for Good Foundation | El Cerrito | 501(c)(3) | 2016 | $954,854 | $589,458 | 2024-12 |
| Sol Foundation for Advanced Scientific and Policy Research | Redwood City | 501(c)(3) | 2024 | $937,625 | $65,945 | 2024-12 |
| Human Energy Inc | Orinda | 501(c)(3) | 2021 | $918,811 | $413,806 | 2025-12 |
| Semio Community | Los Angeles | 501(c)(3) | 2024 | $901,676 | $7,522 | 2025-12 |
| Polaris Research Institute Inc | Berkeley | 501(c)(3) | 2019 | $900,120 | $640,031 | 2025-12 |
| La-Mas Inc | Los Angeles | 501(c)(3) | 2013 | $899,335 | $1 million | 2024-12 |
| Lmsys Corp | Sacramento | 501(c)(3) | 2024 | $889,293 | $686,785 | 2025-12 |
| Transducer Research Foundation Inc | San Diego | 501(c)(3) | 1995 | $884,943 | $448,354 | 2025-12 |
| Urban Forest Institute | SN Luis Obisp | 501(c)(3) | 2023 | $878,676 | $160,042 | 2025-12 |
| Network for Open Scientificinnovation | Carlsbad | 501(c)(3) | 2007 | $871,063 | $468,862 | 2025-12 |
| Unicode Inc | S San Fran | 501(c)(3) | 2013 | $860,373 | $1.8 million | 2025-12 |
| Institute of Mentalphysics | Joshua Tree | 501(c)(3) | 1937 | $848,093 | $1.2 million | 2024-12 |
| Cognitive Neuroscience Society | Davis | 501(c)(3) | 1996 | $843,542 | $524,154 | 2025-12 |
| Project Survival | Dunlap | 501(c)(3) | 1997 | $838,405 | $568,406 | 2025-07 |
| Community Science Workshop Network | Chowchilla | 501(c)(3) | 2012 | $817,051 | $283,176 | 2025-06 |
| Monterey Institute for Research in Astronomy | Marina | 501(c)(3) | 1972 | $801,076 | $5.4 million | 2025-12 |
| International Scientific Assoc for Probiotics and Prebiotics Inc | Sacramento | 501(c)(3) | 2002 | $790,030 | $2.9 million | 2025-12 |
| The National Academies Corporation | Irvine | 501(c)(3) | 1986 | $768,986 | $18.8 million | 2024-12 |
| Eleos Ai Research Inc | Berkeley | 501(c)(3) | 2024 | $762,250 | $462,636 | 2024-12 |
| Ai Futures Project Inc | Berkeley | 501(c)(3) | 2024 | $760,281 | $534,664 | 2024-12 |
| Innovative Genomics Foundation | Berkeley | 501(c)(3) | 2024 | $723,960 | $788,607 | 2025-12 |
| Quest Science Center | Livermore | 501(c)(3) | 2018 | $713,386 | $546,985 | 2025-12 |
| Pasadena Bioscience Center Inc | Pasadena | 501(c)(3) | 2003 | $711,638 | $1.1 million | 2025-06 |
| Future of Life Foundation | Campbell | 501(c)(3) | 2023 | $711,130 | $26.7 million | 2023-12 |
| Openai Inc | San Francisco | 501(c)(3) | 2016 | $691,271 | $14.7 million | 2024-12 |
| Ai La Community Inc | Los Angeles | 501(c)(3) | 2020 | $676,985 | $263,677 | 2025-06 |
| Plurality Institute | San Francisco | 501(c)(3) | 2023 | $666,679 | $613,726 | 2024-12 |
| Wireshark Foundation | Davis | 501(c)(3) | 2022 | $660,969 | $21,724 | 2024-12 |
| Berkeley 100 Foundation | Berkeley | 501(c)(3) | 2025 | $660,602 | $48,147 | 2025-12 |
| California Biotechnology Foundation | Sacramento | 501(c)(3) | 2010 | $655,214 | $35,094 | 2024-12 |
| International Society of Offshore and Polar Engineers | Mountain View | 501(c)(3) | 1991 | $643,850 | $6 million | 2026-06 |
| Fascia Research Society | Upland | 501(c)(3) | 2025 | $629,877 | $618,735 | 2025-06 |
| Algalita Marine Research and Education | Long Beach | 501(c)(3) | 1995 | $622,663 | $830,035 | 2025-12 |
| Extreme Tech Challenge | Palo Alto | 501(c)(3) | 2020 | $621,767 | $278,947 | 2025-12 |
| Moore Institute for Plastic Pollution Research | Long Beach | 501(c)(3) | 2020 | $620,794 | $130,687 | 2024-12 |
| Playing at Learning | San Jose | 501(c)(3) | 2004 | $616,133 | $490,761 | 2025-05 |
| Asapbio | San Francisco | 501(c)(3) | 2017 | $609,930 | $763,661 | 2025-12 |
| International Society for CNS Drug Development Inc | San Diego | 501(c)(3) | 2002 | $597,294 | $2.1 million | 2025-12 |
| The Meteoritical Society | Del Mar | 501(c)(3) | 2014 | $583,411 | $2.8 million | 2025-05 |
| Southern California Marine Institute | San Pedro | 501(c)(3) | 1995 | $572,913 | $552,384 | 2025-06 |
| Collaborative Earth Institute | Berkeley | 501(c)(3) | 2022 | $571,385 | $272,037 | 2025-12 |
| Grupo Cleofas | Gaviota | 501(c)(3) | 2004 | $571,132 | $1.4 million | 2024-12 |
| Less Death Inc | Santa Clara | 501(c)(3) | 2022 | $568,269 | $125,958 | 2025-12 |
| The Foundation for Advancements in Science and Education | Altadena | 501(c)(3) | 1982 | $560,032 | $67,938 | 2024-12 |
| Academy of Neuroscience for Architecture | La Jolla | 501(c)(3) | 2003 | $554,208 | $1.2 million | 2025-12 |
| Reservoir Engineering Research Institute | Palo Alto | 501(c)(3) | 1991 | $547,635 | $181,004 | 2024-12 |
| Rhiza Research Inc | Oakland | 501(c)(3) | 2025 | $532,761 | $268,913 | 2024-12 |
| Climate Impact Lab Inc | Oakland | 501(c)(3) | 2022 | $523,757 | $151,864 | 2024-12 |
| The@systems and Machine Learning Foundation | Indio | 501(c)(3) | 2019 | $516,855 | $755,850 | 2024-12 |
| Solving for Science | San Francisco | 501(c)(3) | 2022 | $467,426 | $144,699 | 2025-06 |
| Exploring Solutions Past the Maya Forest Alliance | Santa Barbara | 501(c)(3) | 2002 | $466,854 | $98,348 | 2025-12 |
| Cecil H & Ida M Green Foundation for Earth Sciences | La Jolla | 501(c)(3) | 1971 | $462,658 | $18.2 million | 2025-03 |
| Wintriss Technical Schools Inc | San Diego | 501(c)(3) | 2006 | $453,227 | $187,768 | 2025-12 |
| Collaborative Research & Designs for Agriculture | Santa Cruz | 501(c)(3) | 1998 | $445,869 | $260,608 | 2024-12 |
| The Aldrin Family Foundation Inc | Los Angeles | 501(c)(3) | 1999 | $442,011 | $159,217 | 2025-12 |
| Ballad Research Institute | San Diego | 501(c)(3) | 2014 | $421,391 | $139,878 | 2025-06 |
| Launchbio Inc | San Diego | 501(c)(3) | 2016 | $407,511 | $175,576 | 2025-12 |
| Climate Access Inc | Scotts Valley | 501(c)(3) | 2017 | $393,871 | $207,915 | 2025-06 |
| Applied Love Labs | San Francisco | 501(c)(3) | 2020 | $392,622 | $204,160 | 2025-12 |
| International College of Prosthodontists | San Diego | 501(c)(3) | 1998 | $368,501 | $215,142 | 2025-12 |
| Bioscience Los Angeles County Inc | Culver City | 501(c)(3) | 2019 | $360,182 | $987,047 | 2024-12 |
| HHV-6 Foundation | Santa Barbara | 501(c)(3) | 2005 | $358,897 | $78,736 | 2025-12 |
| Simulation Councils Inc | San Diego | 501(c)(3) | 1959 | $357,894 | $350,229 | 2025-06 |
| Clean Oceans Project | Santa Cruz | 501(c)(3) | 2011 | $341,442 | $261,928 | 2025-06 |
| Open Lunar Foundation | Covina | 501(c)(3) | 2019 | $339,356 | $932,963 | 2024-12 |
| Geological Engineering Foundation | Moraga | 501(c)(3) | 2015 | $320,672 | $11,847 | 2025-12 |
| Santa Rosa Plateau Foundation | Murrieta | 501(c)(3) | 2004 | $313,310 | $827,740 | 2025-06 |
| Biosphere Foundation | Bishop | 501(c)(3) | 1993 | $308,989 | $1.1 million | 2025-12 |
| Desert Tortoise Council Inc | Palmdale | 501(c)(3) | 1986 | $305,518 | $568,456 | 2024-12 |
| Aeg Foundation | Chico | 501(c)(3) | 1994 | $298,573 | $1.3 million | 2024-12 |
| TMT Observatory Corporation | Monrovia | 501(c)(3) | 2004 | $296,950 | $1.7 million | 2025-09 |
| Kacyra Family Foundation | Walnut Creek | 501(c)(3) | 2002 | $282,753 | $4.5 million | 2025-12 |
| Marine Life Studies | Moss Landing | 501(c)(3) | 2009 | $277,116 | $628,460 | 2025-12 |
| Foundation for Californias Technology and Innovation Economy | Los Angeles | 501(c)(3) | 2018 | $270,500 | $301,469 | 2024-12 |
| Mennonite Genealogy Inc | Fresno | 501(c)(3) | 2026 | $270,133 | $268,479 | 2024-12 |
| California Ocean Alliance | Aptos | 501(c)(3) | 2017 | $267,850 | $93,636 | 2024-12 |
| Ecological Building Network | San Rafael | 501(c)(3) | 2006 | $262,978 | $207,103 | 2025-12 |
| Socal Association for Biomedical and Pharmaceutical Advancements | San Diego | 501(c)(3) | 2002 | $262,586 | $422,360 | 2024-12 |
| Planetary Sunshade Foundation | Los Angeles | 501(c)(3) | 2022 | $261,957 | $84,669 | 2025-12 |
| Placer Advanced Robotics and Technology | Granite Bay | 501(c)(3) | 2018 | $259,214 | $168,839 | 2024-12 |
| Cultural Heritage Imaging | San Francisco | 501(c)(3) | 2003 | $249,370 | $83,251 | 2024-12 |
| Seaoc Foundation | Sacramento | 501(c)(3) | 2004 | $248,999 | $583,807 | 2024-12 |
| Chiao-Tung University Alumni Association of Northern California | Mountain View | 501(c)(3) | 2000 | $240,555 | $28,563 | 2025-06 |
| California Grape Rootstock Research Foundation | Sacramento | 501(c)(3) | 2001 | $233,779 | $2.3 million | 2026-03 |
| Evotek Giving Foundation Inc | Solana Beach | 501(c)(3) | 2021 | $231,764 | $277,552 | 2024-12 |
| Chinese-American Bio Pharmaceutical Society | San Francisco | 501(c)(3) | 2006 | $230,254 | $290,662 | 2024-08 |
| Armenian Engineers and Scientists of America Inc | Glendale | 501(c)(3) | 1986 | $218,341 | $590,536 | 2024-12 |
| Science for the Church | Chico | 501(c)(3) | 2022 | $213,469 | $107,209 | 2026-01 |
| Biocurious | Santa Clara | 501(c)(3) | 2014 | $201,517 | $117,028 | 2025-12 |
| Flasher Barricade Association | Morro Bay | 501(c)(6) | 2016 | $201,403 | $100,279 | 2025-12 |
| Nuclear Industry Assessment Corporation | Orange | 501(c)(6) | 2016 | $199,652 | $142,983 | 2025-09 |
| San Diego Architectural Foundation | San Diego | 501(c)(3) | 2018 | $198,212 | $126,912 | 2025-12 |
| Secure Ai Project | San Francisco | 501(c)(4) | 2026 | $195,025 | $195,025 | 2024-12 |
| World Spine Care | Tustin | 501(c)(3) | 2010 | $191,106 | $653,190 | 2025-12 |
| Measurement Science Conference Inc | Torrance | 501(c)(3) | 1981 | $190,776 | $390,646 | 2025-03 |
| Aladdin Bioinformatics Foundation | Irvine | 501(c)(3) | 2022 | $190,062 | $4.3 million | 2025-12 |
| Gloria Great Basin | Coleville | 501(c)(3) | 2018 | $187,383 | $337,706 | 2025-12 |
| Organization for Professional Astrology Inc | San Diego | 501(c)(3) | 2023 | $185,981 | $10,762 | 2025-12 |
| Rnd4impact Inc | San Jose | 501(c)(3) | 2020 | $184,100 | $376,390 | 2025-12 |
| Southern California Genetic Counselors | San Pedro | 501(c)(3) | 2019 | $181,917 | $106,518 | 2025-12 |
| Epoch Artificial Intelligence Inc | San Francisco | 501(c)(3) | 2024 | $180,010 | $95,779 | 2024-12 |
| Frontiers in Bioscience Inc | Newport Coast | 501(c)(3) | 1998 | $179,746 | $9 million | 2025-12 |
| Southern California Chapter of Msci Inc | La Verne | 501(c)(6) | 2008 | $167,840 | $20,585 | 2025-12 |
| Explorit Science Center | Davis | 501(c)(3) | 1984 | $165,963 | $596,264 | 2025-08 |
| International Society for Nanoscale Science Computing & Engineering | La Crescenta | 501(c)(3) | 2023 | $161,898 | $2.1 million | 2024-12 |
| Science and Technology Education Partnership | Riverside | 501(c)(3) | 2000 | $161,806 | $170,701 | 2025-12 |
| Sharegenome | San Diego | 501(c)(3) | 2018 | $161,245 | $143,552 | 2025-12 |
| Science & Design Inc | Belmont | 501(c)(3) | 2023 | $159,566 | $18,823 | 2024-12 |
| Iit Bay Area Alumni | Santa Clara | 501(c)(3) | 2019 | $155,925 | $486,831 | 2025-12 |
| Chlamydia Basic Research Society | Irvine | 501(c)(3) | 2003 | $152,471 | $155,681 | 2025-12 |
| Ethical Tech Project | San Francisco | 501(c)(3) | 2025 | $150,000 | $149,950 | 2025-01 |
| Pacific Journal of Mathematics | Berkeley | 501(c)(3) | 1970 | $144,121 | $802,682 | 2024-12 |
| Qualia Research Institute | Covina | 501(c)(3) | 2018 | $140,681 | $157,564 | 2024-12 |
| Globally - Global Entrepreneurship Foundation | Berkeley | 501(c)(3) | 2018 | $140,077 | $95,941 | 2025-12 |
| Single Event Effects Symposium | Los Angeles | 501(c)(3) | 2000 | $136,871 | $156,798 | 2025-12 |
| Open Insulin Foundation | Oakland | 501(c)(3) | 2022 | $132,435 | $197,426 | 2025-12 |
| International Society of Infrared Millimeter and Terahertz Waves | La Canada | 501(c)(3) | 2016 | $131,333 | $1.1 million | 2025-12 |
| California Federation of Mineralogical Societies Inc | Rialto | 501(c)(3) | 1966 | $129,677 | $1.1 million | 2024-12 |
| Foundation for Fairness in Commerce | San Rafael | 501(c)(4) | 2021 | $125,000 | $148,390 | 2025-12 |
| Hightide Robotics Inc | Ventura | 501(c)(3) | 2018 | $120,981 | $37,269 | 2025-12 |
| Public Interest Patent Law Institute | La Quinta | 501(c)(3) | 2023 | $115,728 | $219,102 | 2025-12 |
| Cybertractor Challenge | Torrance | 501(c)(3) | 2023 | $115,100 | $39,867 | 2024-12 |
| Hands-On Robotics Inc | Palo Alto | 501(c)(3) | 2023 | $115,000 | $16,712 | 2025-12 |
| Collective Intelligence Project Inc | San Francisco | 501(c)(3) | 2024 | $110,693 | $1.5 million | 2025-12 |
| Alameda County Science and Engineering Fair Association | Danville | 501(c)(3) | 2012 | $109,274 | $92,932 | 2025-12 |
| Society of American Military Engineers | Fremont | 501(c)(3) | 1958 | $108,506 | $486,193 | 2024-12 |
| Ipnsig Inc | Elk Grove | 501(c)(3) | 2022 | $106,135 | $86,327 | 2025-12 |
| International Federation Inventors Associations | Pinole | 501(c)(3) | 2023 | $106,054 | $13,989 | 2024-12 |
| Charging Robotics | Irvine | 501(c)(3) | 2015 | $103,778 | $114,985 | 2025-12 |
| Paleo-Astron Inc | Modesto | 501(c)(3) | 2006 | $103,400 | $224,863 | 2024-12 |
| Women in Big Data Inc | Palo Alto | 501(c)(3) | 2020 | $102,443 | $224,498 | 2024-12 |
| Society for Mass Spectrometry Imaging | Woodland | 501(c)(6) | 2017 | $100,429 | $28,851 | 2026-03 |
| Fundamental Research Laboratory | Los Angeles | 501(c)(3) | 1997 | $99,000 | $22,000 | 2025-01 |
| American Chemical Society | Pasadena | 501(c)(3) | 1946 | $97,646 | $228,245 | 2024-12 |
| Bay Area K Group | Sunnyvale | 501(c)(3) | 2017 | $93,529 | $97,374 | 2024-12 |
| American Association of Bangladeshi Engineers and Architects | San Dimas | 501(c)(3) | 2019 | $92,540 | $43,962 | 2025-12 |
| Wonderfest | Corte Madera | 501(c)(3) | 2012 | $91,400 | $119,100 | 2025-12 |
| Quantified Uncertainty Research Institute | Berkeley | 501(c)(3) | 2020 | $91,362 | $100,315 | 2024-12 |
| Cheai Research Inc | San Jose | 501(c)(3) | 2020 | $89,225 | $38,400 | 2025-05 |
| Kits Cubed Inc | Oakland | 501(c)(3) | 2021 | $88,295 | $71,849 | 2025-12 |
| Force 11 | Davis | 501(c)(3) | 2014 | $86,615 | $103,250 | 2024-12 |
| American Society of Nondestructive Testing-Greater Los Angeles | Rosemead | 501(c)(3) | 1988 | $86,320 | $84,284 | 2025-05 |
| Moonshots for Unicorns | Berkeley | 501(c)(3) | 2022 | $84,496 | $386,602 | 2025-12 |
| International Society for Aerosols in Medicine Inc | Watsonville | 501(c)(3) | 2024 | $82,186 | $28,953 | 2025-12 |
| San Benito County Robotics Inc | Hollister | 501(c)(3) | 2023 | $82,125 | $58,862 | 2025-12 |
| Robyn Dawes Institute for the Improvement of Science | Berkeley | 501(c)(3) | 2025 | $81,707 | $44,452 | 2025-12 |
| Society for Research Synthesismethodology | Merced | 501(c)(3) | 2006 | $80,546 | $195,396 | 2024-12 |
| Hackers Conference Inc | San Francisco | 501(c)(3) | 2022 | $79,813 | $321,142 | 2024-12 |
| Lemur Love Inc | San Diego | 501(c)(3) | 2014 | $79,450 | $15,297 | 2025-12 |
| American Chemical Society | Pasadena | 501(c)(3) | 1946 | $79,321 | $257,647 | 2025-12 |
| Vail Computer Elements Workshop | Redwood City | 501(c)(3) | 2017 | $78,800 | $6,518 | 2025-12 |
| Centaur Ai Institute | Lincoln | 501(c)(3) | 2024 | $78,009 | $28,114 | 2025-12 |
| Numadelic Labs | El Cerrito | 501(c)(3) | 2025 | $76,501 | $16,734 | 2025-12 |
| Santa Clara Valley Gem & Mineral Society | San Jose | 501(c)(3) | 2005 | $75,777 | $392,262 | 2024-12 |
| International Youth Nuclear Congress | Berkeley | 501(c)(3) | 2002 | $75,759 | $245,921 | 2025-12 |
| The Rahus Institute | Sebastopol | 501(c)(3) | 1998 | $75,595 | $98,520 | 2025-12 |
| Kinetic Universe | Eureka | 501(c)(3) | 2007 | $75,276 | $32,398 | 2025-06 |
| P3 Innovation Center Inc | Irvine | 501(c)(3) | 2022 | $75,020 | $8,805 | 2023-06 |
| Mycological Society of San Francisco | Oakland | 501(c)(3) | 2022 | $74,750 | $93,028 | 2025-06 |
| Collaborative Research Association of Social Hacktivity | Culver City | 501(c)(3) | 2013 | $74,091 | $222,410 | 2025-12 |
| Sae Aero Design Inc | Stanford | 501(c)(3) | 2021 | $74,033 | $17,957 | 2025-12 |
| American Chemical Society | San Diego | 501(c)(3) | 1945 | $71,215 | $546,805 | 2022-12 |
| San Diego Geological Society | San Diego | 501(c)(3) | 2009 | $70,378 | $52,812 | 2025-06 |
| Hofvarpnir Studios | Bridgeport | 501(c)(3) | 2022 | $66,500 | $572,247 | 2024-12 |
| International Committee Monitoring Assisted Reproductive Technologies | Cupertino | 501(c)(3) | 2010 | $66,404 | $316,274 | 2024-12 |
| Skys the Limit Observatory & Nature Center | Twentynin PLM | 501(c)(3) | 2017 | $65,230 | $415,246 | 2025-12 |
| Erlang Ecosystem Foundation Inc | Sunnyvale | 501(c)(3) | 2020 | $64,943 | $124,920 | 2024-12 |
| International Society of Information Fusion | Sacramento | 501(c)(3) | 2000 | $64,434 | $674,098 | 2025-12 |
| Advancing Women in Product | Belmont | 501(c)(3) | 2022 | $60,752 | $308,474 | 2025-12 |
| Academy of Underwater Arts and Sciences | Santa Barbara | 501(c)(3) | 1994 | $57,850 | $121,455 | 2024-12 |
| Sampe Foundation | Claremont | 501(c)(3) | 2006 | $57,017 | $46,033 | 2025-12 |
| Cordell Marine Sanctuary Foundation | Petaluma | 501(c)(3) | 2009 | $56,501 | $125,507 | 2025-09 |
| Ocean Genome Atlas Project | Berkeley | 501(c)(3) | 2022 | $55,827 | $721,898 | 2024-12 |
| P3 Exhibits Corporation | Los Angeles | 501(c)(3) | 2023 | $55,416 | $5.1 million | 2025-06 |
| Trust & Safety Foundation | San Francisco | 501(c)(3) | 2022 | $55,362 | $2.1 million | 2024-12 |
| Navello Research and Education Foundation | Sunnyvale | 501(c)(3) | 2025 | $55,310 | $44,256 | 2025-12 |
| Sha Research Foundation | San Francisco | 501(c)(3) | 2002 | $55,010 | $38,982 | 2025-05 |
| Healthunity Corporation | Palo Alto | 501(c)(3) | 2022 | $55,000 | $114,558 | 2024-12 |
| Yucaipa Valley Gem & Mineral Society Inc | Yucaipa | 501(c)(3) | 2014 | $54,601 | $102,953 | 2025-12 |
| Eaa South Bay Chapter 96 Inc | Compton | 501(c)(3) | 2001 | $52,315 | $70,635 | 2025-12 |
| Open Fung | Los Angeles | 501(c)(3) | 2024 | $51,402 | $45,530 | 2025-06 |
| Cidr Foundation | San Mateo | 501(c)(3) | 2020 | $50,944 | $213,360 | 2024-12 |
| Khipu Ai - Latin American Ai Institute | Mountain View | 501(c)(3) | 2024 | $49,975 | $49,969 | 2024-12 |
| Plextech | Berkeley | 501(c)(3) | 2023 | $49,846 | $3,779 | 2025-12 |
| Advanced Heliophysics | Monrovia | 501(c)(3) | 2014 | $49,203 | $49,879 | 2024-12 |
| Taiwannext Foundation | Cupertino | 501(c)(3) | 2024 | $48,004 | $2,073 | 2023-12 |
| Canadian Entrepreneurs in Life Science - San Francisco Chapter | San Carlos | 501(c)(6) | 2018 | $47,844 | $26,546 | 2025-12 |
| Sierra Nevada Bighorn Sheep Foundation | Bishop | 501(c)(3) | 1995 | $47,750 | $151,814 | 2025-12 |
| Chinese American Abacus Association | Fremont | 501(c)(3) | 2004 | $46,445 | $86,331 | 2024-12 |
| Berbawy Makers Inc | Fremont | 501(c)(3) | 2019 | $45,510 | $40,423 | 2024-12 |
| Black in Neuro Inc | San Francisco | 501(c)(3) | 2022 | $44,577 | $158,356 | 2025-06 |
| Rio Americano Science Boosters | Sacramento | 501(c)(3) | 1996 | $44,228 | $21,808 | 2025-06 |
| Walter E Macpherson Society | Loma Linda | 501(c)(3) | 1977 | $43,858 | $367,367 | 2025-06 |
| Quantum Biology Technology Institute | Los Angeles | 501(c)(3) | 2024 | $43,500 | $520 | 2024-12 |
| International Image Sensor Society Inc | Temple City | 501(c)(3) | 2010 | $39,658 | $190,404 | 2025-12 |
| Monterey Bay Dart | Santa Cruz | 501(c)(3) | 2019 | $38,421 | $2,454 | 2024-12 |
| Golden Gate Polymer Forum Inc | San Francisco | 501(c)(3) | 2003 | $36,014 | $129,577 | 2025-06 |
| Association for Mathematical Research | Davis | 501(c)(3) | 2021 | $34,305 | $423,091 | 2024-12 |
| Channel Islands Regional Gis | Ventura | 501(c)(4) | 2004 | $32,844 | $284,399 | 2025-12 |
| Gov4git Foundation | Los Altos HLS | 501(c)(3) | 2024 | $32,258 | $34,140 | 2025-12 |
| Code of Reality Inc | Sacramento | 501(c)(3) | 2026 | $31,134 | $14 | 2025-12 |
| Ocean Science Expedition Academy | Pacifica | 501(c)(3) | 2024 | $29,786 | $4,918 | 2025-12 |
| Center for the Study of Partisanship and Ideology | San Diego | 501(c)(3) | 2020 | $29,513 | $161,140 | 2025-12 |
| International Society of Innovation Methods | Danville | 501(c)(3) | 2025 | $27,000 | $29,061 | 2025-12 |
| Ai Governance Project | Glendale | 501(c)(3) | 2025 | $25,100 | $34,343 | 2025-12 |
| Butterfly Farms | San Marcos | 501(c)(3) | 2014 | $24,886 | $16,090 | 2025-12 |
| Redwood Research Group Inc | Berkeley | 501(c)(3) | 2021 | $22,060 | $6.6 million | 2024-12 |
| Pacific Coast Protease Workshop Inc | Redwood City | 501(c)(3) | 2024 | $21,417 | $14,335 | 2025-12 |
| Ivrstar Foundation Corporation | San Diego | 501(c)(3) | 2025 | $20,850 | $20,850 | 2025-12 |
| Digital Economy Collaboration Innovation Lab | Sunnyvale | 501(c)(3) | 2019 | $20,387 | $10,853 | 2025-12 |
| Dipterists Society | Sacramento | 501(c)(3) | 2021 | $18,249 | $123,030 | 2025-12 |
| Paragon Institute of Innovation | Sacramento | 501(c)(3) | 2020 | $18,089 | $1.1 million | 2024-12 |
| Conejo Valley Makerspace Inc | Woodland HLS | 501(c)(3) | 2017 | $17,215 | $5,521 | 2024-12 |
| Omni Nano | Culver City | 501(c)(3) | 2013 | $15,498 | $50,678 | 2024-12 |
| Greater San Diego Biological Solutions | Encinitas | 501(c)(3) | 2023 | $14,884 | $2,258 | 2025-12 |
| Usrca | Lafayette | 501(c)(3) | 2014 | $14,665 | $9,873 | 2025-12 |
| Vacaville Unified School District Robotics Team 2288 | Vacaville | 501(c)(3) | 2019 | $14,434 | $5,823 | 2025-12 |
| Chemists Without Borders Inc | Cloverdale | 501(c)(3) | 2012 | $11,727 | $10,545 | 2025-12 |
| Open Research Institute Inc | San Diego | 501(c)(3) | 2019 | $11,291 | $524,061 | 2025-12 |
| Symposia On Turbulence and Shear Flow Phenomena TSFP | Stanford | 501(c)(3) | 2022 | $11,093 | $56,483 | 2025-12 |
| Consortium of Organizations for Strong-Motion Observation Systems | San Francisco | 501(c)(3) | 2001 | $10,982 | $49,315 | 2025-12 |
| American Aeronautical Foundation | Newbury Park | 501(c)(3) | 1983 | $9,807 | $12,125 | 2023-12 |
| Human Biomolecular Research | San Diego | 501(c)(3) | 1997 | $8,820 | $3.8 million | 2025-06 |
| Western Region Robotics Forum Inc | San Jose | 501(c)(3) | 2003 | $7,279 | $18,255 | 2025-08 |
| Latbsdc | Los Angeles | 501(c)(3) | 2022 | $6,454 | $247,224 | 2025-12 |
| Rrrcomputer Inc | Oakland | 501(c)(3) | 2018 | $5,683 | $44,477 | 2023-12 |
| Thrive-Wise | San Jose | 501(c)(3) | 2014 | $4,826 | $74,400 | 2025-12 |
| Vlab | Campbell | 501(c)(3) | 2018 | $4,686 | $6,848 | 2025-06 |
| American Association for Structural Mechanics in Reactor Technology | Alamo | 501(c)(3) | 2010 | $3,895 | $132,846 | 2024-12 |
| California Network for Manufacturing Innovation Inc | San Ramon | 501(c)(3) | 2014 | $3,550 | $54,940 | 2025-12 |
| California Institute of Machine Consciousness | San Francisco | 501(c)(3) | 2025 | $3,500 | $3,122 | 2024-12 |
| Thullen Lab | Beverly Hills | 501(c)(3) | 2025 | $3,486 | $300 | 2025-12 |
| Sourcery Institute | Oakland | 501(c)(3) | 2015 | $1,617 | $15,146 | 2025-12 |
| Open Power & Energy Network Inc | Menlo Park | 501(c)(3) | 2025 | $1,502 | $1,502 | 2024-12 |
| Space Song Foundation | Lucerne | 501(c)(3) | 2022 | $395 | $10,773 | 2025-12 |
| Biobricks Foundation Incorporated | San Francisco | 501(c)(3) | 2006 | $363 | $65,647 | 2023-07 |
| Phi Lab Foundation | El Monte | 501(c)(3) | 2026 | $100 | $1 | 2025-12 |
| The Hermetic Consistory Foundation | Wrightwood | 501(c)(3) | 2020 | $50 | $1 | 2024-12 |
| Ecom Institute of Earth Sciences | San Gabriel | 501(c)(3) | 2012 | $39 | $1 million | 2024-12 |
| Future Cures | Pomona | 501(c)(3) | 2006 | $27 | $71,556 | 2025-05 |
| Equalize Health | Lafayette | 501(c)(3) | 2008 | $12 | $119,010 | 2025-12 |
| Futurable Society | Menlo Park | 501(c)(3) | 2019 | $6 | $59,873 | 2025-12 |
| 2077ai | Mountain View | 501(c)(3) | 2026 | |||
| 4earthtech | Berkeley | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| 4pexonic Inc | San Diego | 501(c)(3) | 2022 | $0 | $0 | 2024-08 |
| 50MHZ and Up Group of N California | Sunnyvale | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| 51 Foundation Inc | Carmichael | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| 916-Bsides | Elk Grove | 501(c)(3) | 2025 | $0 | $0 | 2025-01 |
| A & S Research A California Business Trust | Thousand Oaks | 501(c)(3) | 2002 | $0 | $0 | 2025-12 |
| A Q Global Alliance Inc | San Dimas | 501(c)(3) | 2002 | $0 | $0 | 2026-05 |
| Academy of Imaginal Arts and Sciences | Santa Barbara | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Academy of Managed Care Pharmacy | Stockton | 501(c)(6) | 1999 | $0 | $0 | 2025-06 |
| Accelearnrate Inc | San Diego | 501(c)(3) | 2025 | |||
| Accessible Computers | Fremont | 501(c)(3) | 2020 | $0 | $0 | 2024-09 |
| Active Space Sciences Research Corp | Alameda | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Acts4unity Research and Education Foundation | Palo Alto | 501(c)(3) | 2025 | |||
| Actuarial Commons Inc | Berkeley | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Adaptable Security Corp | San Jose | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Adriatic Research Institute | Richmond | 501(c)(3) | 2002 | $0 | $0 | 2024-12 |
| Adventurers Club | Santa Barbara | 501(c)(3) | 1958 | $0 | $0 | 2025-12 |
| Aeroed | San Diego | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Aerospace Human Factors Association | San Diego | 501(c)(6) | 1992 | $0 | $0 | 2025-12 |
| Afa Grad Inc | San Jose | 501(c)(3) | 2019 | $0 | $0 | 2023-10 |
| Afa Grad USA Inc | San Jose | 501(c)(3) | 2025 | |||
| Aggie Propulsion & Rocketry Lab | Davis | 501(c)(3) | 2025 | $0 | $0 | 2025-06 |
| Ai Alignment Foundation | Marina DL Rey | 501(c)(3) | 2024 | $0 | $58,267 | 2024-12 |
| Ai Foundry Inc | San Ramon | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Ai Integration Task Force Inc | Sunnyvale | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Ai Safety Limited | Sunnyvale | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Ai Stack Tracker | Sacramento | 501(c)(3) | 2025 | |||
| Ai Youth Academy | San Diego | 501(c)(3) | 2026 | |||
| Ai for Africa Inc | Cupertino | 501(c)(3) | 2024 | $0 | $0 | 2026-07 |
| Ai for Better Air | Los Angeles | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Ai for Freedom | West Covina | 501(c)(3) | 2024 | |||
| Ai for Science Catalyst Institute | Mountain View | 501(c)(3) | 2026 | |||
| Ai for Social Good Inc | Alameda | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Air Brake Association | Lincoln | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Air Mobillity Research Institute | Santa Cruz | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Airborne Internet Consortium Inc | Santa Rosa | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Align Foundation | Alhambra | 501(c)(3) | 2025 | |||
| Alliance for Humane Biotechnology | San Francisco | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Alliance for the Advancement of Technology | Hayward | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Alliance of Independent Bigfoot Researchers | Jamestown | 501(c)(3) | 2007 | $0 | $0 | 2025-11 |
| Alltold Impact | Covina | 501(c)(3) | 2026 | |||
| Alta Research Institute | San Jacinto | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Altoponix | Palo Alto | 501(c)(3) | 2022 | $0 | $0 | 2025-06 |
| Alumnor Foundation | Woodland HLS | 501(c)(3) | 2014 | $0 | $16,776 | 2024-12 |
| Amadoruavs Group | Pleasanton | 501(c)(3) | 2024 | $0 | $0 | 2024-08 |
| Amber Initiative Foundation Inc | Los Angeles | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| American Ai and Robotics Association | Sunnyvale | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| American Paranormal Investigations | Roseville | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| American Society of Model Builders Inc | Roseville | 501(c)(3) | 2024 | |||
| Ames Contractor Council Inc | Moffett Field | 501(c)(4) | 2006 | $0 | $0 | 2025-12 |
| Angel City Tech Ed | Downey | 501(c)(3) | 2024 | |||
| Anima Labs Inc | San Diego | 501(c)(3) | 2025 | |||
| Animals and Plants Alliance Inc | Irvine | 501(c)(3) | 2024 | $0 | $0 | 2025-10 |
| Anselm Research | Santa Cruz | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Antelope Valley Astronomy Club | Lancaster | 501(c)(3) | 2003 | $0 | $0 | 2025-09 |
| Apkarian Foundation | Irvine | 501(c)(3) | 2018 | $9,585 | 2025-12 | |
| Aqualink Inc | Bolinas | 501(c)(3) | 2020 | $528,414 | 2024-12 | |
| Aquillius Institute | San Diego | 501(c)(3) | 2025 | |||
| Arc Lab | Los Angeles | 501(c)(3) | 2025 | |||
| Arkansas Cryptomining Association | Los Angeles | 501(c)(6) | 2025 | |||
| Artificial Healthcare Intelligence Inc | Turlock | 501(c)(3) | 2024 | |||
| Artificial Intelligence Coalition | Sunnyvale | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Artificial Intelligence Research Corp | Oceanside | 501(c)(3) | 2022 | $0 | $0 | 2026-04 |
| Association for Computing Machinery | Sacramento | 501(c)(3) | 1968 | |||
| Association for Computing Machinery Inc | Stanford | 501(c)(3) | 1968 | |||
| Association for Netnographic Research | Westlake VLG | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Association for Women in Science Inc | San Mateo | 501(c)(3) | 1990 | $0 | $0 | 2026-06 |
| Association of Customer-Facing Scientists and Engineers | Santa Clara | 501(c)(6) | 2014 | $0 | $0 | 2025-12 |
| Association of Experimental Rocketry of the Pacific | Santa Rosa | 501(c)(3) | 2007 | $0 | $0 | 2024-12 |
| Association of Information Technology Professionals Los Angel | Los Angeles | 501(c)(6) | 2018 | $0 | $0 | 2025-12 |
| Astera Institute | Berkeley | 501(c)(3) | 2020 | $2.62 billion | 2024-12 | |
| Astro Imaging Channel | Moreno Valley | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Astronomers Without Borders Inc | Calabasas | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Atlas Computing Institute | Sacramento | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Atlos Inc | Sacramento | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Atoms for Humanity Corp | Menlo Park | 501(c)(3) | 2026 | |||
| Autonomous Humans Inc | San Francisco | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Avocado Brainstorming Inc | Visalia | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| BRK Research and Charity Inc | Sacramento | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Backyard Shop | Manteca | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Bananiumlabs Incorporated | Cupertino | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Basava Philosophy Research Foundation Inc | San Jose | 501(c)(3) | 2026 | |||
| Basement Developers | Belmont | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Bay Area Drupal Limited | San Francisco | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Bay Area Geophysical Society | Berkeley | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Bay Area Regional Science Olympiad | Sacramento | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Bay Area Taiwanese Biotechnology Association | Milpitas | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Baybots Youth Stem Foundation | Sunnyvale | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Benicia Community Air Monitoring Program | Benicia | 501(c)(3) | 2020 | $183,178 | 2024-12 | |
| Berkeley Pharma Tech Foundation Corporation | Sacramento | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Berkeley Technology and Justice Lab | Oakland | 501(c)(3) | 2026 | |||
| Bettergrids Foundation Inc | Alamo | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Big Mama Earth Learning Academy | Canyon Lake | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Bill Nye Science Foundation | Los Angeles | 501(c)(3) | 2019 | $253,432 | 2025-12 | |
| Bioaligned Labs Inc | Walnut Creek | 501(c)(3) | 2026 | |||
| Biocatalist | San Diego | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Biogenesis World Foundation | La Verne | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Biology Is Open Technology for Insp Iring Civilization Inc | Palo Alto | 501(c)(3) | 2026 | |||
| Biomade Ces Programs | Emeryville | 501(c)(3) | 2022 | $0 | $0 | 2025-09 |
| Biomod Foundation | Pacifica | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Bionic Maker Space Incorporated | San Francisco | 501(c)(3) | 2025 | |||
| Biopunk Society | San Francisco | 501(c)(3) | 2024 | |||
| Biota Institute | Boulder Creek | 501(c)(3) | 1997 | $0 | $0 | 2025-12 |
| Black Diamond Project Corp | Capo Beach | 501(c)(3) | 2026 | |||
| Blockchain By Women | San Mateo | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Blue Latitudes Foundation | Laguna Beach | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Blue Leaf Labs | Cupertino | 501(c)(3) | 2026 | |||
| Blue Vector Ocean Alliance | San Leandro | 501(c)(3) | 2026 | |||
| Bluedna Institute | Carmel | 501(c)(3) | 2026 | |||
| Bots and Bytes Robotics | Fremont | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Boundless Sea and Sky Foundation | Mountain View | 501(c)(3) | 2025 | $9,469 | 2025-12 | |
| Boyce Research Initiatives and Education Foundation | San Diego | 501(c)(3) | 2014 | $69,732 | 2025-06 | |
| Brain Computer Enterprises Cooperative Inc | Santa Cruz | 501(c)(3) | 2025 | |||
| Brain Resilience Foundation | Irvine | 501(c)(3) | 2025 | |||
| Branes Foundation | Cayucos | 501(c)(3) | 1997 | $1 million | 2024-12 | |
| Braveflight Futures Foundation Inc | La Mesa | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Bruin Formula Racing | Los Angeles | 501(c)(3) | 2025 | |||
| Buildtech Youth | Fremont | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| CNS Research Center | San Jose | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| CS Equity Ai | Mountain View | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Calaveras Gem and Mineral Society | Angels Camp | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| California Ai Laboratory for Innova Tion Business and Engineering Rese | Los Angeles | 501(c)(3) | 2026 | |||
| California Cave Survey | Bella Vista | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| California Center for Government Innovation | Sacramento | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| California Counties Architects and Engineers Association | Santa Barbara | 501(c)(3) | 2011 | $0 | $0 | 2024-09 |
| California Grain Foundation | Woodland | 501(c)(3) | 2014 | $0 | $0 | 2025-04 |
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.