Thought it would be nice to compile a list of manufactures who make singlespeed off the rack bikes.
Actually Surly does sell complete bikes. check out their webiste SURLYVILLE and you can see for yourself. Most manufacturers will at least offer build kits (like Santa Cruz) if they sell frames.To clarify, Surly and independent don't really make them "off the rack." They make frame sets, but not complete bikes.
Bianchi Makes the Pista as a complete bike