- Science Tech And NatureGoogle Developer Groups - Bay AreaGoogle Developer Groups presence in the Bay Area for technical training, Google technologies, and developer networking.
- Science Tech And NatureGopher Meetups in SF Bay AreaBay Area calendar for Go programming language meetups and talks.
- Science Tech And NatureGraphQL San FranciscoGraphQL community for developers working with APIs, backend systems, and application data access.
- Volunteering And CausesGreenbelt AllianceBay Area organization focused on climate resilience, open space, land-use advocacy, and community engagement.
- Outdoors And AdventureGrizzly Peak CyclistsA bicycle club based in Berkeley, organizing recreational rides for all levels throughout the Bay Area.
- Volunteering And CausesHabitat for Humanity East Bay/Silicon ValleyRegional Habitat affiliate with community volunteering, homebuilding, repair, and housing programs.
- Volunteering And CausesHabitat Restoration Team - Golden Gate National Parks ConservancyHelp restore and protect critical natural areas from the Marin Headlands to Bolinas Ridge - invasive plant removal, planting, and seed collection.
- Science Tech And NatureHacker 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 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.