- Sports Wellness And RecreationMarin Bocce FederationCommunity bocce organization with leagues, tournaments, and a dedicated Marin bocce facility.
- Books And WritingMarin Book Club (25 - 40 y.o.)Let's get together to talk about books! Whether you're already an avid reader or hoping to kick off a new reading habit, you are welcome.
- Sports Wellness And RecreationMarin Coed Soccer LeagueRecreational adult coed 11v11 soccer league with ten teams playing Saturdays in Spring and Fall round-robin seasons; open to women 18+ and men 30+; no standings kept and Good Sportsmanship Awards given each season.
- Books And WritingMarin County Genealogical SocietyA vibrant community of family historians who enable individuals to discover, preserve, and share their family histories through education, research, and community engagement. Special interest groups include DNA, book club, and writing groups.
- Arts And CraftsMarin Golden ThreadsMarin Golden Threads is a chapter of the Embroiderers' Guild of America, a haven where devoted needlework enthusiasts unite, with monthly programs, workshops, and lectures.
- Arts And CraftsMarin Photography ClubWe are a dynamic group of photographers who come together to learn, grow, and share our love of photography. Whether you’re just starting out or are an experienced photographer, our club offers a welcoming environment filled with learning opportunities, creative challenges, and genuine friendships.
- Sports Wellness And RecreationMarin Pickleball LeagueOffers weekly clinics, weekly round robins, and monthly flexible-schedule league play for all levels at public courts around Marin County; partners matched on request. Run by Teresa Toepel and Alyson Aiello.
- Sports Wellness And RecreationMarin Soccer LeagueThe original North Bay men's soccer league' - mission is to grow a league rooted in healthy competition and camaraderie where people of different ages, origins, and skill levels enjoy weekend matches and midweek kickarounds.
- Outdoors And AdventureMariposa Hunters Point Yacht ClubThe Mariposa Hunters Point Yacht Club (MHPYC), established in 1932, is a non-profit, membership club dedicated to sailing and service to the greater San Francisco Bay Area community. The club sponsors recreational, educational, and charitable activities.
- Sports Wellness And RecreationMartinez Golf AssociationA men's and women's traveling golf club founded in 1961; a 501(c)(7) and NCGA associate club playing monthly tournaments at SF Bay Area courses, NCGA qualifier events, and an annual out-of-area golf excursion.
- Nature Gardens And FarmsMidori Bonsai ClubSince 1961, one of California's oldest and most vibrant bonsai clubs. Midori Bonsai hosts twice-monthly bonsai meetings, workshops, and events in the San Jose area for enthusiasts of all levels.
- Sports Wellness And RecreationMid-Peninsula Running ClubA free running club that serves the peninsula area and is open to runners of all ages and speeds. The Mid-Peninsula Running Club has been around since 1988 serving runners in San Mateo County.
- Nature Gardens And FarmsMilo 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 CodingMLOps 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 CodingMount Diablo Amateur Radio ClubEast Bay amateur radio club for ham-radio operators, public-service communications, and local radio community.
- Science Tech And CodingMount 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.
- Arts And CraftsMt. Tam Quilt GuildThe Mt. Tam Quilt Guild promotes an interest in and appreciation of the art of quilt making, to share quilting information and education. Members make quilts and pillowcases for Marin non-profits.
- Sports Wellness And RecreationMuni 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.
- Books And WritingMystery Book Club at Weekes Branch LibraryWe read a mix of cozy mysteries, thrillers. Copies are available on a first come first served basis.
- Books And WritingMystery Writers of America - NorCal ChapterNorthern California chapter of the Mystery Writers of America for mystery/crime writers and publishing community.
- Business And CareerNAAAP 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.