Solano Community Tennis Association (SCTA)
A 501(c)(3) community tennis association founded in 2021 to promote and develop the growth of tennis in northern Solano County (dba Northern Solano County Racquet Association); supports USTA adult league play at Centennial Park, a Pickleball Division (dba Vacaville Pickleball), and GO Solano youth programs.
Solo Sierrans
The Solo Sierrans, a section of the San Francisco Bay Chapter of the Sierra Club, offer fun, friendship, and an opportunity to participate in a variety of outdoor activities. We are singles who care about each other and our environment.
SOMArts Cultural Center
SOMArts leverages the power of art as a tool for social change through multi-disciplinary events and exhibitions. Equipping artists with the space, mentorship and support they need to shift perspectives and innovate solutions to today’s pressing challenges, SOMArts fosters access to arts and culture for collective liberation and self-determination.
Sonoma County Adult Coed Soccer League
Recreational outdoor coed soccer league for adults in Sonoma County (men over 30, women over 18); season runs March through end of June with Saturday games at Galvin and Trione parks and Santa Rosa/Piner high schools.
Sonoma County Beekeepers Association
SCBA supports Sonoma County residents interested in honey bees, beekeeping, pollinator habitat, and community, with educational activities, a swarm-rescue program, and a newsletter.
Sonoma County Genealogical Society
The purpose of this Society is to educate the general public and members in genealogical research, and to preserve, collect, compile, publish and disseminate genealogical data and family history. Publishes the Sonoma Searcher.
Sonoma County Mycological Association (SOMA)
The Sonoma County Mycological Association (SOMA) is a non-profit group dedicated to learning about local mushrooms and fungi, supporting mycological research through scholarships and educating the public. Hosts forays, SOMA Camp, and a Mushroom Art Fair.
Sonoma County Pickleball Club
Organizes drop-in pickleball play at public courts throughout Sonoma County, including daily 9am drop-in at Finley Park and afternoon play at Howarth Park in Santa Rosa, plus locations in Petaluma, Windsor, Rohnert Park, Healdsburg, Sebastopol and more.
Sonoma County Radio Amateurs
Sonoma County ham radio club holding monthly membership meetings with programs of interest to hams, VE license exam sessions, repeaters, and ARRL Field Day participation.
Sonoma County Women's Wine Club (SCWWC)
Group for women in Sonoma County who enjoy networking, socializing, and drinking wine, meeting monthly at local wineries, small businesses, and restaurants. Must be 21+ to join.
Sonoma Reads! Book Club
Meets the fourth Thursday of the month from 2-3 pm. Pick up a copy of each month's book at the Sonoma Valley Branch while supplies last. Then, please come and discuss it with us.
Sonoma Splash Masters Swimming
Masters swim team at Sonoma Splash's aquatic center welcoming brand new swimmers, returning swimmers, and regulars who want to work out with a group; coached by USMS-certified coaches; offers a 'Masters 101' intro class.