- Outdoors And AdventureAlmaden Cycle Touring ClubACTC promotes cycling on the trails, roads, paths, and mountains of the South Bay area of San Francisco and beyond'; a volunteer-based not-for-profit emphasizing social, recreational, transportation and health aspects of cycling. Motto: 'Riding for Fitness, Friendship, and Fun.'
- Outdoors And AdventureAlto Velo Racing ClubAlto Velo is a premier cycling club in Northern California that supports a friendly and inclusive community for cyclists of all levels, disciplines and backgrounds', offering weekly group rides plus training and racing opportunities.
- Social And MeetupsAmador Club
- Arts And CraftsAmador Valley QuiltersAmador Valley Quilters (AVQ) is a creative group of people who like to explore all aspects of the quilting world. Its Community Quilts charity makes and donates over 600 quilts per year to local agencies.
- Music Dance And PerformanceAmateur Music NetworkBay Area network supporting amateur musicians through workshops, events, and music-making opportunities.
- Science Tech And CodingAngular-SFAngular meetup group in San Francisco for talks, hosts, and speakers.
- Sports Wellness And RecreationArab Run Club SFPartiful is the free RSVP website builder that requires zero coding. Create a beautiful event page, collect RSVPs in real time, and share by text or link.
- Business And CareerArgonauts ToastmastersWe provide a supportive and positive learning experience in which members are empowered to develop communication and leadership skills, resulting in greater self-confidence and personal growth.
- Arts And CraftsArtistic LicenseGuild/community focused on historic decorative arts, artisanship, and preservation-related craft.
- Volunteering And CausesAssistance League of San JoseVolunteer philanthropic organization (EIN 95-1945908) whose member volunteers run programs benefiting children and the community in the San Jose area, funded through events like Dining for Dollars.
- Arts And CraftsBATS ImprovSan Francisco's center for improvised theater, offering shows, classes, and corporate training.
- Music Dance And PerformanceBay Area A CapellaRobert Lee (rleevoice.com) is passonate about music and creating community. His goals: to get adults singing, and to create fulfilling a cappella experiences for singers at all levels.
- Science Tech And CodingBay Area Accessibility and Inclusive DesignBay Area community for developers, designers, accessibility, usability, and other high-tech professionals interested in digital accessibility.
- Sports Wellness And RecreationBay Area Adult Soccer LeagueThe premier adult soccer league in the San Francisco Bay Area. Community, inclusivity, and high-quality play since day one.
- Science Tech And CodingBay Area Android DeveloperAndroid developer community focused on latest Android best practices for beginner to advanced developers.
- Science Tech And CodingBay Area Apache Kafka MeetupEvent-streaming meetup focused on Apache Kafka, Kafka Connect, stream processing, microservices, and related technologies.
- Arts And CraftsBay Area Art Conservation GuildGuild/community for art conservation professionals and people interested in preservation and conservation.
- Arts And CraftsBay Area Basket MakersBay Area basketry group for makers interested in basket making and related craft techniques.
- Arts And CraftsBay Area Book ArtistsBook arts organization for artists and makers interested in artist books, bookbinding, paper, and related arts.
- Sports Wellness And RecreationBay Area Cricket AllianceRegional cricket league/community organizing cricket competition and clubs across the Bay Area.
- Sports Wellness And RecreationBay Area Disc AssociationThe Bay Area Disc Association is a nonprofit that runs youth and adult ultimate frisbee leagues, tournaments, summer camps, clinics, and events.
- Outdoors And AdventureBay Area DragonsDragon boat racing team and nonprofit foundation offering paddling activities and free lessons.
- Business And CareerBay Area Editors’ ForumProfessional community and directory for editors in the San Francisco Bay Area.
- Social And MeetupsBay Area Equestrian ClubA community for horse enthusiasts in the Bay Area, offering educational events, trail rides, and social gatherings.
- Science Tech And CodingBay Area GamesCommunity-developed resource and events hub for aspiring game developers and local game enthusiasts in the Bay Area.