| O.W.L. Foundation ( Petaluma, CA ) |
Oak to Ninth Referendum Committee ( Oakland, CA ) |
| Oakland Asian Students Educational Services ( Oakland, CA ) |
Oakland Citizens Committee for Urban Renewal ( Oakland, CA ) |
| Oakland Food Connection ( Oakland, CA ) |
Oakland Food Policy Council ( Oakland, CA ) |
| Oakland Kids First ( Oakland, CA ) |
Oakland Museum of California ( Oakland, CA ) |
| Oakland Public Library |
Oakland Sol ( Oakland, CA ) |
| Oaklavia: Come Play in the Streets ( Oakland, CA ) |
Oasis / California ( San Francisco, CA ) |
| OBUGS ( Oakland, CA ) |
Occidental Arts and Ecology Center ( Occidental, CA ) |
| Occupation 101 |
Ocean Voyages Institute ( Sausalito, CA ) |
| OceanHealth.Org ( San Fransisco, CA ) |
October 22nd Coalition to Stop Police Brutality |
| Oil Change International |
Oil Depletion Analysis Centre |
| Oil Drum |
Oil Factor: Behind the War On Terror |
| Oil Independent Berkeley |
Oilwatch |
| Older Women's League ( San Francisco, CA ) |
Om Organics |
| On Lok SeniorHealth ( San Francisco, CA ) |
One Brick |
| ONE Campaign |
One Economy Corporation (San Francisco Office) ( San Francisco, CA ) |
| OneCareNow.org ( Mill Valley, CA ) |
OneWorld |
| Online Review of Books and Current Affairs |
Open Directory Project |
| OpportunityKnocks.org |
Organic Attire ( Willits, CA ) |
| Organic Consumers Association |
Organic Events ( Half Moon Bay, CA ) |
| Organic Express ( San Francisco, CA ) |
Organic Farming Research Foundation ( Santa Cruz, CA ) |
| Organic Kitchen |
OrganicAthlete ( Graton, CA ) |
| Organizers' Collaborative |
Our City ( San Francisco, CA ) |
| our developing world ( Saratoga, CA ) |
Our Family Coalition, The Bay Area Gay & Lesbian Family Group ( San Francisco, CA ) |
| Our Stolen Future |
Out4Immigration |
| Outer Voices ( Sebastopol, CA ) |
Outfoxed: Rupert Murdoch's War on Journalism |
| Overcoming Consumerism |
Oxfam America |
| Oyate ( Berkeley, CA ) |
