I was at Bi-Rite in the city yesterday and noticed bread from a bakery I'd never heard of: Firebrand.
I bought their Classic Sourdough, which included unbleached wheat flour, whole wheat flour, and rye flour, all organic. OMG, it was one of the best loaves of bread I have ever tasted. Really crispy crust, moist and chewy inside, packed with flavor. My wife and I couldn't stop slathering butter on it and devouring it.
The bakery is on Beach Street in Oakland and appears to be quite new. (No real website yet; just a placeholder page saying it's available at Bi-Rite and Rainbow.) Don't know if they sell retail from the bakery.