- Science Tech And NatureMilo Baker Chapter, California Native Plant SocietyMilo Baker Chapter of the California Native Plant Society, named after the famous Santa Rosa botanist Milo Samuel Baker, located in Sonoma County, protecting native plants through science, education, stewardship, gardening, and advocacy.
- Science Tech And NatureMLOps Community San FranciscoLocal San Francisco chapter/events for the MLOps community, focused on real-world ML systems and production ML practices.
- Social And MeetupsModernistModernist is a San Francisco based private social and venture club founded in 2015. It is a curated member community with a mission to build an amazing life-long community in San Francisco and around the world.
- Food And DrinkMOSAMOSA is a creative culinary experiential events studio producing elevated social dining experiences to serve unforgettable gastronomic affairs, including an invite-only San Francisco supper club.
- Science Tech And NatureMount Diablo Astronomical SocietyM.D.A.S. was formed in 1957 as part of the National Moonwatch program. The club holds monthly meetings in Walnut Creek plus free public and society astronomy programs and star parties (March-October) on Mt. Diablo.
- Fitness And WellnessMuni Run ClubRunning the hills and streets of San Francisco. Saturdays at 8am. All paces welcome.
- Social And MeetupsMutual Feelings SFWe're dedicated to curating inclusive, empowering, and safe community spaces + events for Black women in San Francisco. Mutual Feelings SF invites you to embrace the spirit of the season by honoring the Black Women who inspire, uplift, and bloom in their own unique ways.
- Career And NetworkingNAAAP San Francisco Bay AreaAsian American professional association chapter with networking, leadership, and community programming.
- Books And WritingNapa County Historical SocietyDedicated to Napa County history since 1948, the Napa County Historical Society is the region's leading source for historic exhibits, presentations, lectures, advocacy, and research, operating a museum and research library in the Goodman Library building downtown.
- Science Tech And NatureNapa-Solano Audubon SocietyAudubon chapter for Napa and Solano counties offering birding field trips, weekly Saturday bird walks, a monthly speaker series, K-12 education programs, citizen science, and conservation advocacy.
- Games And TabletopNapa Valley Model Railroad Historical SocietyModel railroad historical society with a STEM education focus, participating in regional model railroad events.
- Arts And CraftsNapa Valley QuiltersQuilt guild that invites area residents and guests to join; meets monthly at the Napa Senior Citizens Center. Mailing address P.O. Box 405, Napa, CA 94559.