- Outdoors And AdventureBay Area Sea KayakersBay Area Sea Kayakers (BASK) is a non-profit 501(c)(7) sports club of several hundred sea kayakers who live throughout the San Francisco Bay Area. Our interests include flat-water paddling, kayak-surfing, expeditions, and playing amongst the rocks, in conditions that range from mild to wild. Our club exists to bring paddlers together for companionship, safety, education, exploration, learning, and great food and drink! We're committed to safety both on and off the water, and our club holds insurance through Paddlesports Risk Management. We offer an inexpensive annual Skills Clinic to members, as well as numerous free clinics on skills, rescue, and safety throughout the year. We welcome as members all individuals interested in kayaking. We’re committed to building a diverse and inclusive paddling club and to sharing our enthusiasm, skills, and knowledge to increase equity and access to our sport.
- Music Dance And PerformanceBay Area Showcase ChorusWomen’s barbershop/a cappella chorus with rehearsals, performances, and harmony-singing community.
- Science Tech And CodingBay Area SkepticsThe San Francisco Bay Area's skeptical organization since 1982
- Science Tech And CodingBay Area Software Engineers (BASE)Community organization for software engineers in San Francisco and the Bay Area, with events around emerging software technologies.
- Science Tech And CodingBay Area Tableau User GroupBay Area Tableau user-group events and community for data visualization practitioners.
- Games And TabletopBay Area Table Top RPG NetworkNetwork keeping Bay Area role players connected to find other players and share experiences, with members scheduling face-to-face RPG sessions such as an ongoing D&D 5e Adventure League group.
- Science Tech And CodingBay Area User Research MeetupLow-key Bay Area community for user researchers to meet, talk shop, and share methods.
- Outdoors And AdventureBay Area Women's Hiking Group'A place for women to meet, inspire each other and experience nature in the company of other women'; small-group hikes of 8-15 (max 25) hikers, mostly 5-12 miles at Easy to Strenuous++ levels across the Bay Area.
- Arts And CraftsBay Area Woodturners AssociationWoodturning association for turners, demonstrations, meetings, and woodturning education.
- Arts And CraftsBay Area Woodworkers AssociationWoodworking association dedicated to sharing woodworking knowledge and showcasing Bay Area woodworking.
- Science Tech And CodingBay Area Zig User GroupUser group for Zig programming language enthusiasts in the San Francisco Bay Area.
- Sports Wellness And RecreationBayLax Women's Lacrosse LeagueBayLax is the San Francisco Bay Areas only non-profit Women Lacrosse club.
- Games And TabletopBayLUG - Bay Area LEGO Users GroupBay Area LEGO user group for adult fans and builders, including displays, meetings, and community activity.
- Science Tech And CodingBAY-NETBay Area amateur radio group focused on repeaters, emergency communications, and regional ham community.
- Sports Wellness And RecreationBelmont RunnersEstablished to promote fitness and foster community relationships through running; a local group (most members between San Mateo and Redwood City) meeting several times a week for casual group runs, open to all fitness levels. 501(c)(4) nonprofit and RRCA member.
- Outdoors And AdventureBenicia Bicycle ClubClub organizing regular group rides (A and B pace groups) around Benicia, Solano County and the greater Bay Area, including the semiannual Moxie ride.
- Social And MeetupsBenicia Friendship ClubMeet people, socialize, make new friends, and support charities and scholarships - with outings to restaurants and plays, potlucks, book clubs, bunco, card games, Mexican Train, a walking group, and more.
- Outdoors And AdventureBenicia Outrigger Canoe ClubOutrigger canoe club paddling the Carquinez Strait; Saturday open practices welcome keiki (10+) and parents, with a modified less-intensive practice option.
- Arts And CraftsBerkeley Camera ClubBerkeley Camera Club is a robust organization offering something of value to photographic enthusiasts of every sort.
- Games And TabletopBerkeley Chess School Women's Chess ClubThe BCS Women's Chess Club meets 1- 3 pm, the 2nd & 4th Sundays of the month at BCS for casual games.
- Social And MeetupsBerkeley City ClubThe Berkeley City Club is a historic hotel, event space, fine dining restaurant, and private social club. Opened in 1930 to honor the need for a women’s activity center, The Club, also known as the “Little Castle,” was designed by famed California architect Julia Morgan.
- Music Dance And PerformanceBerkeley Community Chorus & OrchestraFor almost 60 years, the Berkeley Community Chorus & Orchestra has inspired people of all musical abilities and backgrounds to sing major symphonic choral works, performed free of charge for the community. Also home to a Women's Chorus and Chamber Singers.
- Music Dance And PerformanceBerkeley Folk DancersBerkeley Folk Dancers is America's largest folk dance club, dancing seven times a week, fifty weeks a year, now in its 84th year. Beginner classes meet at Northbrae Church and Live Oak Park.
- Sports Wellness And RecreationBerkeley Garden ClubBerkeley garden club with local gardening, horticulture, and community programming.
- Sports Wellness And RecreationBerkeley Kendo Dojo