- Science Tech And CodingHacker DojoHacker Dojo is a tech community with a mission to build an inclusive environment for enthusiasts to learn, play, build, and connect. It is a collaborative hackerspace where tech enthusiasts gather to build, experiment and improve. Hacker Dojo provides the tech community and other communities in Silicon Valley an affordable place to learn, collaborate and innovate so that anyone from any circumstance and background with an idea can build their dream.
- Sports Wellness And RecreationHalberstadt Fencers' ClubOne of the oldest continuously operating fencing clubs in the US, dedicated to the sport of fencing since 1942.
- Outdoors And AdventureHalf Moon Bay Surf ClubSurf club for middle and high school students on the Coastside; beginner and recreational surfers must have completed a junior lifeguard program or reputable surf camp, with safety requirements and parental supervision for middle schoolers.
- Outdoors And AdventureHalf Moon Bay Yacht ClubHMBYC programs focus on sailing: the club offers sailing instruction for adults and children and operates a fleet of club-owned small sailboats for qualified members, from a beach clubhouse in Pillar Point Harbor.
- Volunteering And CausesHandsOn Bay AreaVolunteer network connecting people and companies with local service projects.
- Arts And CraftsHarvey Milk Photo CenterOur diverse arts program allows students the freedom and opportunity to discover ways to express themselves creatively. Every student has the opportunity to create!
- Sports Wellness And RecreationHash House HarriersWe are about 40 – 60 people every Monday night, mostly a bunch of professionals who enjoy letting our hair down, running, and drinking beer. We are a wide variety of age and running ability, from very fast to walkers and everything in between.
- Social And MeetupsHave Fun Make Friends SFWelcome to the Have Fun Make Friends SF Meetup group! This is the place to connect with like-minded individuals who share your interests.
- Volunteering And CausesHispanic Community Affairs CouncilThe Hispanic Community Affairs Council (HCAC) is a community-based organization in Alameda County.
- Science Tech And CodingHomeBrew Robotics ClubHobbyist robotics club for building, discussing, and sharing robot projects.
- Volunteering And CausesHomegrown Habitats San Leandroa community of volunteers committed to native plant gardening in support of biodiversity and a healthy ecosystem
- Arts And CraftsHumanmadeSan Francisco maker and fabrication community with industrial workshops, equipment training, and individual memberships.
- Science Tech And CodingIEEE San Francisco Bay Area CouncilRegional IEEE council connecting the San Francisco, Santa Clara Valley, and Oakland/East Bay sections.
- Sports Wellness And RecreationImpala Racing TeamWe are the Impala Racing Team, the oldest all women's racing team in the country, established in 1979 and proudly based in San Francisco. This tight-knit community offers coaching, team events and more for runners of exceptional ability.
- Business And CareerImprovMasters - San Jose Public Speaking Toastmasters ClubIn-person Toastmasters club in San Jose combining 30 minutes of improv games with prepared and impromptu speaking - improve speaking skills, build confidence, think fast, and have fun.
- Culture And LanguageIndia Community CenterBay Area Indian community center with cultural, social, educational, and community programs.
- Culture And LanguageIrish Literary and Historical Society of the San Francisco Bay AreaCultural society focused on Irish literature, history, and community programming.
- Culture And LanguageIrish Network Bay AreaIrish and Irish-American professional, cultural, and social network serving the Bay Area.
- Social And MeetupsIron Horse Mothers ClubA social and support group for mothers of young children (birth through five years), formed to provide a nurturing community where moms make friends, support each other, learn about parenting, and have fun; 'bringing moms together since 1996'.
- Culture And LanguageItalian Cultural Institute of San FranciscoItalian cultural institute with language, arts, and cultural programming for the Bay Area community.
- Culture And LanguageJapan Society of Northern CaliforniaOrganization advancing U.S.-Japan collaboration through language, cultural, business, and fellowship programming.
- Social And MeetupsJunior League of Napa-Sonoma (JLNS)Women's organization advancing leadership through volunteer action, collaboration, and training in Napa and Sonoma counties, with community events such as Ride-a-Rig.
- Volunteering And CausesJunior League of San FranciscoWomen’s volunteer and civic leadership organization focused on community action and leadership development.
- Music Dance And PerformanceKariktan Dance CompanyWe promote Philippine Culture through dance and music.
- Science Tech And CodingKARO-ECHO (Kensington Amateur Radio Operators - El Cerrito Ham Operators)an all-volunteer non-profit tax-deductible organization (501c3) of amateur radio operators