Data / Nonprofits / Washington / Science and technology
Science and technology nonprofits in Washington: 239 registered with the IRS
239 science and technology nonprofits are registered with the IRS in Washington, 229 of them 501(c)(3) charities; the 74 that report revenue took in $179.3 million. The most are in Seattle (71), Bellevue (21), Spokane (14). The largest by revenue: Geneva Foundation 04-15-93 ($60.8 million), Institute for Systems Biology ($42.3 million), Sage Bionetworks ($24.5 million).
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Every organization, largest by revenue first
| Organization | City | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Geneva Foundation 04-15-93 | Tacoma | 501(c)(3) | 2004 | $60.8 million | $25.2 million | 2024-12 |
| Institute for Systems Biology | Seattle | 501(c)(3) | 2000 | $42.3 million | $109.3 million | 2024-12 |
| Sage Bionetworks | Seattle | 501(c)(3) | 2010 | $24.5 million | $8.2 million | 2024-12 |
| Astrophysical Research Consortium | Seattle | 501(c)(3) | 1984 | $5.2 million | $34.7 million | 2024-12 |
| Blue Marble Space | Seattle | 501(c)(3) | 2012 | $5.1 million | $1.2 million | 2025-09 |
| Give To Research | Lacey | 501(c)(3) | 2022 | $5 million | $5.6 million | 2025-12 |
| Black in Marine Science | Spokane | 501(c)(3) | 2022 | $3.2 million | $1.3 million | 2024-12 |
| Center for Whale Research | Friday Harbor | 501(c)(3) | 1986 | $2.1 million | $4.6 million | 2025-09 |
| Standard CPP Foundation | Spokane | 501(c)(6) | 2014 | $2.1 million | $936,950 | 2025-06 |
| Northwest Straits Marine Conservation Foundation | Bellingham | 501(c)(3) | 2002 | $2 million | $816,690 | 2025-09 |
| Symbol Syndicate | Kirkland | 501(c)(3) | 2025 | $2 million | $1 million | 2022-12 |
| Foundation for Marine Ecology and Telemetry Research | Seabeck | 501(c)(3) | 2016 | $2 million | $902,219 | 2025-12 |
| Givedignifiedwork Inc | Bothell | 501(c)(3) | 2024 | $1.7 million | $1.8 million | 2024-12 |
| American Automatic Control Council | Seattle | 501(c)(3) | 2017 | $1.5 million | $927,125 | 2024-12 |
| Earth & Space Research | Seattle | 501(c)(3) | 1995 | $1.5 million | $730,488 | 2025-06 |
| Riseup Labs | Lacey | 501(c)(3) | 2008 | $1.3 million | $480,211 | 2024-12 |
| NCW Tech Alliance | Wenatchee | 501(c)(3) | 2014 | $1.3 million | $1.4 million | 2025-12 |
| Pacific Shellfish Institute | Olympia | 501(c)(3) | 2004 | $1.3 million | $315,677 | 2025-08 |
| Black Farmers Collective | Seattle | 501(c)(3) | 2018 | $1.1 million | $1.2 million | 2025-12 |
| Data Transfer Project Inc | Tacoma | 501(c)(4) | 2023 | $1.1 million | $24,150 | 2025-12 |
| Sound Experience | Port Townsend | 501(c)(3) | 1990 | $1 million | $1.4 million | 2024-12 |
| Glacier Peak Institute | Darrington | 501(c)(3) | 2017 | $971,211 | $243,775 | 2024-12 |
| Oceans Initiative | Seattle | 501(c)(3) | 2016 | $864,560 | $126,345 | 2024-12 |
| Port Townsend Marine Science Center | Port Townsend | 501(c)(3) | 1983 | $780,244 | $3.2 million | 2025-12 |
| Council for the Advancement of Science Writing Inc | Seattle | 501(c)(3) | 1961 | $757,415 | $2.1 million | 2024-12 |
| Hotrock Energy Research Organization | Seattle | 501(c)(3) | 2015 | $712,089 | $42,711 | 2025-12 |
| Uca Users Group | Olympia | 501(c)(3) | 2017 | $626,614 | $689,694 | 2025-12 |
| Pisces International | Bremerton | 501(c)(3) | 2021 | $609,216 | $390,661 | 2025-12 |
| World Digital Technology Academy | Redmond | 501(c)(3) | 2024 | $501,000 | $543,095 | 2025-12 |
| Transparency Coalition Ai | Seattle | 501(c)(3) | 2024 | $438,446 | $215,174 | 2025-12 |
| Defi First Improving Code Security | Seattle | 501(c)(3) | 2025 | $407,953 | $71,425 | 2024-12 |
| Mobile Intelligence Alliance | Bellevue | 501(c)(3) | 2022 | $271,441 | $46,242 | 2025-12 |
| Washington Aerospace Scholarsfoundation | Tukwila | 501(c)(3) | 2007 | $246,888 | $269,161 | 2024-12 |
| Washington State Academy of Sciences | Seattle | 501(c)(3) | 2009 | $219,990 | $196,962 | 2025-06 |
| Octo | Woodinville | 501(c)(3) | 2001 | $215,773 | $93,929 | 2024-12 |
| Chinese Institute of Engineers Usa-Seattle | Renton | 501(c)(3) | 2005 | $194,461 | $139,122 | 2024-12 |
| Association of Science Communicators | Spokane | 501(c)(3) | 2018 | $176,409 | $106,161 | 2025-12 |
| Society of American Military Engineers | Seattle | 501(c)(3) | 1954 | $169,509 | $118,242 | 2025-12 |
| Western North American Region of the Intl Biometric Society | Seattle | 501(c)(3) | 2003 | $160,864 | $77,034 | 2025-12 |
| Orca Behavior Institute | Friday Harbor | 501(c)(3) | 2016 | $156,245 | $333,980 | 2025-12 |
| Association for Uncertainty in Artificial Intelligence Inc | Seattle | 501(c)(3) | 1992 | $155,737 | $389,699 | 2025-12 |
| Quantitative User Experience Association | Seattle | 501(c)(3) | 2022 | $151,190 | $140,661 | 2026-06 |
| Friends of Cooper Island | Seattle | 501(c)(3) | 2002 | $143,652 | $146,379 | 2024-12 |
| International Phycological Society A California Nonproft Pub Ben Corp | Seattle | 501(c)(3) | 2008 | $142,316 | $1.4 million | 2024-12 |
| Comcode | Seattle | 501(c)(3) | 2024 | $129,705 | $38,683 | 2025-12 |
| Transparency Coalition Action Fund | Seattle | 501(c)(4) | 2024 | $128,713 | $43,376 | 2025-12 |
| Soundbio Lab | Seattle | 501(c)(3) | 2016 | $113,908 | $60,474 | 2025-12 |
| Auditory Implant Research Inc | Seattle | 501(c)(3) | 2019 | $108,616 | $187,162 | 2025-12 |
| Omegaup | Bellevue | 501(c)(3) | 2016 | $107,394 | $132,084 | 2025-09 |
| Snoco Makers | Everett | 501(c)(3) | 2016 | $103,540 | $17,024 | 2025-12 |
| D Language Foundation | Kirkland | 501(c)(3) | 2016 | $103,189 | $139,081 | 2024-12 |
| Cascadia Cleantech Prize | Seattle | 501(c)(3) | 2017 | $102,788 | $6,752 | 2024-12 |
| Third Place Technologies | Seattle | 501(c)(3) | 2015 | $100,338 | $5,988 | 2024-12 |
| Ho Oulu Aina Foundation | Bellingham | 501(c)(3) | 2014 | $91,428 | $1 million | 2025-12 |
| Changbal Society | Shoreline | 501(c)(3) | 2017 | $85,420 | $65,513 | 2024-12 |
| Eastern Pacific Ocean Conference | Seattle | 501(c)(3) | 2014 | $85,350 | $14,867 | 2025-12 |
| Evergreen Bioscience Innovation Cluster | Spokane | 501(c)(3) | 2023 | $84,635 | $38,728 | 2025-12 |
| Ai4life Institute | Bellevue | 501(c)(3) | 2024 | $81,862 | $59,525 | 2024-12 |
| Pacific Mammal Research | Anacortes | 501(c)(3) | 2014 | $81,405 | $54,456 | 2026-01 |
| Northwest Treasures | Wapato | 501(c)(3) | 2014 | $75,077 | $2,829 | 2024-12 |
| Bevy Foundation | Seattle | 501(c)(3) | 2024 | $73,940 | $35,143 | 2024-12 |
| Northwest Techfuture Foundation | Bellevue | 501(c)(3) | 2023 | $58,150 | $17,561 | 2025-12 |
| American Society for Photogrammetry and Remote Sensing Inc | E Wenatchee | 501(c)(3) | 2025 | $55,075 | $43,844 | 2024-12 |
| Skeptical Science Inc | Seattle | 501(c)(3) | 2021 | $54,233 | $21,143 | 2024-12 |
| Map the Gaps | Seattle | 501(c)(3) | 2020 | $50,585 | $469,293 | 2024-12 |
| Phyllis and Mark Leppert Foundation for Fertility Research | Bellevue | 501(c)(3) | 2014 | $47,174 | $13,461 | 2025-12 |
| Shoshone Education and Research Center | Seattle | 501(c)(3) | 2000 | $41,261 | $36,763 | 2025-08 |
| Skagit Climate Science Consortium | Anacortes | 501(c)(3) | 2014 | $36,702 | $30,402 | 2024-12 |
| International Stem League Inc | Vancouver | 501(c)(3) | 2012 | $34,488 | $100 | 2025-12 |
| Space Northwest | Bellevue | 501(c)(3) | 2022 | $32,258 | $30,007 | 2025-12 |
| Chipready Org | Redmond | 501(c)(3) | 2025 | $27,094 | $7,524 | 2025-12 |
| North Central Washington Prospectors | Wenatchee | 501(c)(4) | 2003 | $14,823 | $1,147 | 2024-12 |
| Ofm Research | Seattle | 501(c)(3) | 2014 | $5,000 | $6,059 | 2025-12 |
| Innerspace Exploration Team | Mountlake Ter | 501(c)(3) | 1997 | $1,020 | $1,822 | 2025-12 |
| 7hills Foundation | Vancouver | 501(c)(3) | 2026 | |||
| Advanced Neural Security Research | Kennewick | 501(c)(3) | 2026 | |||
| Ai Risk and Vulnerability Alliance | Seattle | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| American Aerospace Materials Manufacturing Center | Spokane | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Application Communication and Security Initiative | Seattle | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Associated Resource Team of Washington | Mount Vernon | 501(c)(3) | 2019 | $0 | $0 | 2024-07 |
| Atomic City Drone Club | Pasco | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Austral Pursuits and Research | Spokane | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Biofuel Africa Foundation | Seattle | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Biomass2methanol | Wahkiacus | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Biomedical Research Institutions Information Technology Exchange | Bellingham | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Bright Green Science Fund | Seattle | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Butterfly Labs | Bellevue | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Caribbean Education Agritech Initiative | Seattle | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Cascadia R Conference | Seattle | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Cetacean Institute | Seattle | 501(c)(3) | 2026 | |||
| Church of Malware | Port Orchard | 501(c)(3) | 2026 | $0 | $0 | 2026-05 |
| Circle Green Energy Inc | Renton | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Coastal Ecosystems Research Foundation Us | Seattle | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Coding for Life Science | Sammamish | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Community Makers NW | Seattle | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Conquer Stars Not Humans Association | Federal Way | 501(c)(3) | 2025 | $0 | $0 | 2026-07 |
| Continuous Path | Vashon | 501(c)(3) | 2014 | $535,800 | 2025-09 | |
| Ctbuh Seattle | Seattle | 501(c)(3) | 2018 | $1 | 2025-12 | |
| Cve Foundation | Bremerton | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Cybersmrt NP PS | Poulsbo | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Defense Nuclear Research Laboratory | Pacific | 501(c)(3) | 2022 | $15,189 | 2025-12 | |
| Dense Analysis | Spokane | 501(c)(3) | 2023 | $0 | $0 | 2026-04 |
| Design Build Fly at Uw | Seattle | 501(c)(3) | 2024 | $0 | $0 | 2025-05 |
| Digital Roots Project | Tacoma | 501(c)(3) | 2025 | |||
| Digivations Camp Demigod Institute | Leavenworth | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Diy Nest Institute | Sumner | 501(c)(3) | 2016 | $0 | $0 | 2023-12 |
| Double Jump Academy | Bellevue | 501(c)(3) | 2021 | $0 | $0 | 2025-10 |
| Eastkingco Rock Club | Kirkland | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Emerald Onion | Seattle | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Empowerment Innovation Lab | Seattle | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Encrypted Spaces Foundation | Issaquah | 501(c)(3) | 2026 | |||
| Enuval | Vancouver | 501(c)(3) | 2021 | $63,568 | 2025-12 | |
| Epd Laboratories Inc | Spokane | 501(c)(3) | 2012 | $0 | $0 | 2025-06 |
| Experimentel Aircraft Association Chapter 84 | Woodinville | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Explorers Club - Pacific Northwest Chapter | Tacoma | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Fermi Explorer Mission | Redmond | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Foundation for Planetary Intelligence | Woodinville | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Fourbridges | Port Angeles | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Fringe Labs Research Corporation | Clyde Hill | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Fund Science | Port Townsend | 501(c)(3) | 2025 | |||
| Fundament Research Institute | Puyallup | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Future Martians | Sammamish | 501(c)(3) | 2025 | |||
| Good Software Foundation | Bothell | 501(c)(3) | 2026 | |||
| Gracetech Services | Bellevue | 501(c)(3) | 2024 | $244,444 | 2025-12 | |
| Grays Harbor Rock Club | Aberdeen | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Green Process Engineering Association | Richland | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Grey Matters Journal | Seattle | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Gyroid Foundation | Renton | 501(c)(3) | 2021 | $3,228 | 2025-12 | |
| Halocline Research Group Inc | Seattle | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Hanford Engineers Week Committee | Richland | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Health Equity Solutions | Snohomish | 501(c)(3) | 2024 | $146,053 | 2024-12 | |
| Helio Networks | Kirkland | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Honeynet Project | Tacoma | 501(c)(3) | 2002 | $0 | $0 | 2024-06 |
| Hopetree Foundation | Bellevue | 501(c)(3) | 2024 | $0 | $0 | 2024-07 |
| Illinois Design Challenge Corp | Seattle | 501(c)(3) | 2023 | $0 | $0 | 2024-06 |
| Imperial Starbase Society | Mountlake Ter | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Inclusive Technology of Washington | Bellevue | 501(c)(3) | 2026 | |||
| Instar Users Group | Spokane | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Institute for Inquiry Inc | Twisp | 501(c)(3) | 2005 | $0 | $0 | 2024-12 |
| Institute for Research of Chats | Seattle | 501(c)(3) | 2018 | $1 | 2025-12 | |
| Institute for Scientific Communications Inc | Spokane | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Institute for Venture Science | Seattle | 501(c)(3) | 2015 | $0 | $13,885 | 2024-12 |
| Institute of Interdisciplinary Scientists | Kirkland | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| International Information Management Association Inc | Edmonds | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Inventor Safe Haven | Redmond | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| J2S Foundation | Redmond | 501(c)(3) | 2026 | |||
| Kaphan Foundation | Seattle | 501(c)(3) | 2005 | $141.4 million | 2024-12 | |
| Kitbase Foundation | Bellevue | 501(c)(3) | 2025 | $1 | 2025-12 | |
| Knok | Enumclaw | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Kynamatrix Research Network | Redmond | 501(c)(3) | 2006 | $0 | $0 | 2026-05 |
| Launchpad Inland Northwest Foundation | Spokane | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Local Connectivity Lab | Seattle | 501(c)(3) | 2019 | $0 | $0 | 2025-10 |
| Mariner Marauder Booster Club | Everett | 501(c)(3) | 1996 | $0 | $0 | 2025-07 |
| Mesh America | Toledo | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Minterbrook On the Bay Learning & Research Aqua Eco Systems | Gig Harbor | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Next Giant Leap | Bellingham | 501(c)(3) | 2024 | |||
| North Cascades Mineralogical Research Institute | Marblemount | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Northwest Aquatic and Marine Educators | Seattle | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Northwest Chemical Association Inc | Vancouver | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Northwest Mushroomers Association | Bellingham | 501(c)(4) | 2025 | $0 | $0 | 2025-12 |
| Northwest Nuclear Laboratories | Federal Way | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Northwest Paleontological Association | Seattle | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Northwestern Telephone and Telegraph | Seattle | 501(c)(3) | 2019 | $10,955 | 2024-12 | |
| Nuclear Industrial Safty & Health Association | Benton City | 501(c)(6) | 2011 | $0 | $0 | 2024-12 |
| Open Sourcery Inc | Bellevue | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Outbio Seattle | Seattle | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Pacific Northwest Exotic Pest Plant Council | Seattle | 501(c)(3) | 1996 | $0 | $0 | 2024-12 |
| Pakistani Women in Computing | Pullman | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Park and Jang Foundation | Kirkland | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Pers Pacific Estuarine Research Society | Bellingham | 501(c)(3) | 2014 | $0 | $0 | 2024-03 |
| Pettibon Bio-Mechanics Institute | Chehalis | 501(c)(3) | 1981 | $0 | $0 | 2025-12 |
| Pharma and Medtech Information Inc | Federal Way | 501(c)(6) | 2026 | $0 | $0 | 2023-12 |
| Pharmatrix | Bothell | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Phoenix GH | Bellevue | 501(c)(3) | 2026 | |||
| Project Upland Foundation | Ellensburg | 501(c)(3) | 2026 | |||
| Prosperity for Peace Foundation | Yelm | 501(c)(3) | 2025 | |||
| Puyallup Valley Gem & Mineral Club | Puyallup | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Pysoniq Software Foundation | Spokane | 501(c)(3) | 2022 | $10,945 | 2025-09 | |
| Quantum Gravity Society | Seattle | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Quick2space | Redmond | 501(c)(3) | 2016 | $0 | $0 | 2023-12 |
| Research and Development Services of America | Neah Bay | 501(c)(3) | 2010 | $108,058 | 2024-12 | |
| Revprof Corp | Spokane | 501(c)(6) | 2026 | |||
| Ribbit Network | Vancouver | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Robobridge | Bellevue | 501(c)(3) | 2025 | |||
| Rprime Foundation | Seattle | 501(c)(3) | 2020 | $76,085 | 2025-12 | |
| Science Communication Institute | Seattle | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Science Foundation | Seattle | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Science of Creating Miracles Foundation | Kingston | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Seattle Chinese Biomedical Association | Seattle | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Seattle Professionals of the National Society of Black Engineer | Seattle | 501(c)(3) | 2023 | $0 | $0 | 2024-06 |
| Seattle Solar Car Team | Seattle | 501(c)(3) | 2024 | $0 | $0 | 2025-08 |
| Seattle Startup Accelerator | Bellevue | 501(c)(3) | 2025 | |||
| Secure Software Development Project | Kirkland | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Senior Tech Foundation | Auburn | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Sno-Valley Innovation Inc | Snoqualmie | 501(c)(3) | 2020 | $0 | $0 | 2024-06 |
| Social Experiments | Kirkland | 501(c)(3) | 2020 | $0 | $0 | 2025-06 |
| Spatial Refernece Center of Washington | Anacortes | 501(c)(3) | 2005 | |||
| Spiritual Data | Federal Way | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Spokane DX Association | Colbert | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Sublime Ai Institute | Bellevue | 501(c)(3) | 2025 | |||
| Submerged Cultural Resources Exploration Team | Kirkland | 501(c)(3) | 2000 | $0 | $0 | 2025-12 |
| Subterranean Ecology Institute Inc | Anacortes | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Supply Chain Health Consortium | Seattle | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Sustainable Strides | Bothell | 501(c)(3) | 2024 | $0 | $1 | 2024-12 |
| Symbiogenics | Seattle | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| TSF | Snohomish | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Tacoma Astronomical Society Inc | Tacoma | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Tech Savvy Youth | Bellevue | 501(c)(3) | 2021 | $0 | $0 | 2024-11 |
| Technological Society of Applied Research | Seattle | 501(c)(3) | 2025 | |||
| Techshare Inc | Mukilteo | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| The Allen Institute for Artificial Intelligence | Seattle | 501(c)(3) | 2025 | $138.9 million | 2024-12 | |
| The National Ufo Reporting Center | Harrington | 501(c)(3) | 2026 | |||
| The Novim Group | Bainbridge Is | 501(c)(3) | 2008 | $0 | $0 | 2024-12 |
| Third Gear Innovators | Carnation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Thriven Foundation | Sammamish | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Toorcon Inc | Seattle | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| Tristar Alchemy Foundation | Tulalip | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Umeed | Redmond | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| United Nations Digital Security Alliance | Redmond | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| University of Quantum Science | Seattle | 501(c)(3) | 2022 | $1 | 2025-12 | |
| Uplift Network | Bellevue | 501(c)(3) | 2024 | |||
| Urbit Development Institute | Bellevue | 501(c)(3) | 2026 | |||
| Van Washington Robotics | Vancouver | 501(c)(3) | 2026 | |||
| Vertex Foundation | Selah | 501(c)(3) | 2025 | |||
| Voice of Planet Foundation | Redmond | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| WGL Friends | Olympia | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Washington Aerospace Club | Bellevue | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Washington Foundation for Molecular Pharmacology | Seattle | 501(c)(3) | 1999 | $98,380 | 2024-12 | |
| Washington Mathematical Association of Two-Year Colleges | Vancouver | 501(c)(6) | 2026 | |||
| Washington Student Math Association | Bothell | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Western Cascade Fruit Society | Vashon | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Western Washington Amateur Relay Association | Seattle | 501(c)(7) | 2024 | $0 | $0 | 2025-12 |
| Western Washington Fruit Research Foundation | Mount Vernon | 501(c)(3) | 1993 | $0 | $0 | 2025-12 |
| Whale Speak | Camano Island | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Whatcom County Rural Internet | Spokane | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Wikispeed | Bothell | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Willard Russel & Emma Marie Slater Family Research Trust | Bainbridge Is | 501(c)(3) | 2001 | $839,513 | 2025-12 | |
| World Language Database | Spokane Vly | 501(c)(3) | 2025 | |||
| World Stem Olympiad | Sammamish | 501(c)(3) | 2018 | $0 | $0 | 2024-06 |
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.