20s-30s Social Club
Are you looking for fun weekend adventures? Want to gather around a bonfire under the stars? This group is for anyone who wants to enjoy life, make genuine connections, and experience the best social events the Bay Area has to offer!
510 Hikers
510 Hikers creates welcoming pathways to nature for underrepresented communities in the Bay Area, fostering health, confidence, and belonging through inclusive outdoor experiences. We organize weekly group hikes that combine education, safety training, and community building while partnering with organizations like REI and Patagonia to ensure everyone has access to proper gear and knowledge.
AAUW Benicia-Vallejo (CA) Branch
A group of dedicated, fun-loving women who sponsor girls for STEM camps, lobby for equity, hold social events and have interest groups including music, book club and a restaurant group; part of AAUW, advocating for women's rights since 1881.
Abrazo Queer Tango
In the tradition of Queer Tango, we invite you to come as you are and dance as you wish. Since 2011, Abrazo Queer Tango has been a part of global queer tango movement. We offer weekly queer tango classes, a monthly milonga and yearly special events. We are a community of dancers dedicated to creating a space where queer, trans, and non-binary dancers can dance, prance and thrive in Argentine tango.
Ace Makerspace
Oakland makerspace with classes and shared workspace for laser cutting, textiles, woodworking, 3D printing, art, and electronics.
Achille International SF
The San Francisco Bay Area chapter of Achilles International transforms the lives of people with disabilities through athletic programs and social connection. Since 1983, Achilles International has empowered over 150,000 athletes of all ages and ability levels to participate in endurance events around the globe. Learn more about our San Francisco Bay Area chapter below.
Aeolian Yacht Club
Aeolian Yacht Club is a volunteer-driven homeport for sailors, power boaters, paddle and rowing sports enthusiasts with a shared love of the sea. Since 1906, our harbor in Alameda's East End has been a direct portal to the San Francisco and San Leandro bays, with a cozy clubhouse for dining, games, and nautical revelry. You don't have to own a boat or be a master of formal club etiquette to be an Aeolian. All you need is a curiosity for having fun on the water with your friends and neighbors, and become part of an Alameda institution.
AIGA San Francisco
Professional association for design serving San Francisco, Silicon Valley, North Bay, East Bay, and the greater Bay Area.
Aikido Institute
Aikido Institute was established in Oakland, California in 1970, and has been providing instruction in the art of Aikido for people in the East Bay since then
Alameda Community Sailing Center
Alameda Community Sailing Center, ACSC, is a volunteer-run organization. Each member is unique, but we all share a love for the salty spray that is best experienced sailing on the open water.
Alameda County Beekeepers Association
The nonprofit Alameda County Beekeepers Association, established in 1916, provides education, support and resources for beekeepers and the public.
Alameda Photographic Society
The purpose of the Alameda Photographic Society is: to promote the art and science of photography in its various forms through the association of its members for study and entertainment; to encourage photographic contests and exhibitions; and to stimulate greater interest and advancement in the knowledge and practice of photography.