- Music Dance And PerformanceSanta Clara Valley Fiddlers AssociationAcoustic music association hosting monthly jams and open mics covering old-time, bluegrass, slow jam, and swing styles, open to family and friends.
- Games And TabletopSanta Clara Valley Gem and Mineral SocietyGem and mineral society with meetings, study groups, field trips, and educational activities.
- Arts And CraftsSanta Clara Valley Watercolor SocietySanta Clara Valley Watercolor Society is a lively arts community based in and around the Bay Area in California, offering workshops and demos, exhibiting opportunities, plein-air paintsites, and special events. Over 300 members.
- Outdoors And AdventureSanta Rosa Cycling ClubA recreational club with regular rides in Sonoma, Napa and Marin Counties; also sponsors the Wine Country Century and the Terrible Two Double Century. 501(c)(4) organization.
- Career And NetworkingSanta Rosa Metro Chamber Young Professionals Network (YPN)YPN convenes young professionals, innovative thinkers, and prominent industry leaders to inspire, educate and empower young business leaders.
- Games And TabletopSanta Rosa Mineral and Gem SocietyNon-profit organization in Sonoma County formed for the purpose of increasing the knowledge and understanding of science as it pertains to minerals, gems, and fossils, studying geology, mineralogy, and all the lapidary arts, with a Juniors program and annual gem show.
- Games And TabletopSanta Rosa Stamp ClubWe are a friendly group of stamp collectors that meet once a month for auctions, presentations and philatelic conversations.
- Career And NetworkingSanta Rosa Toastmasters 182Chartered March 1, 1949, Sonoma County's longest-running Toastmasters club; motto 'We Make Public Speaking Fun!'; meets in person and via Zoom.
- Volunteering And CausesSave The BayRegional nonprofit engaging community members in San Francisco Bay advocacy, shoreline restoration, and volunteer work.
- Books And WritingSCBWI Northern California Bay Area RegionsUmbrella row for Bay Area SCBWI regions supporting children’s book writers and illustrators.
- Music Dance And PerformanceSchola Cantorum Silicon ValleyCommunity chorus presenting concerts across Silicon Valley, with educational outreach and annual Summer Sings sing-alongs of beloved choral masterworks open to all.
- Food And DrinkSecret dining, foodie events and travel - SF Bay AreaThis group is for people who don't want to wait on their friends to finally say 'yes' to eat good food in SFBA and beyond; local food events are member-driven.