- Bicycle-Friendly Berkeley Coalition
 - Berkeley - Bringing together bicyclists, merchants, parents, and environmentalists and others in support of bicycling. - Critical Mass@
- San Francisco - Find sites for Critical Mass in San Francisco, CA, featuring event details, history, resources, and photos of the movement that celebrates cycling.
- East Bay Bicycle Coalition
- Oakland - Dedicated to improving bicycling in Alameda and Contra Costa Counties in California.
- San Francisco Bicycle Coalition
- San Francisco - Promoting the bicycle for everyday transportation. Includes newsletter, local discussions, membership details and more.
- Silicon Valley Bicycle Coalition
- Silicon Valley - Committed to raising cycling consciousness in local governments.
- XAccess (XtraCycle Access Foundation)
- Berkeley - Working to provide load-bearing bicycles to people worldwide who need them but cannnot afford them. Nonprofit sister company of Xtracycle LLC.
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