Something you might be interested in Scrills:

Sulfite Free Wine | Wine, Buy Wine, Search Wine |

That being said, there are a number of wineries who make it a policy not to utilize sulphur in either the vineyard or in the winery, and so there is just the bare, natural minimum in their wines. Frog’s Leap (who makes terrific Chardonnay, Sauvignon Blanc, Zinfandel and Cabernet Sauvignon) and Frey (best for their Zinfandel and Petite Sirah) in California, for instance, follow that regime.
Richard Grant Wrotham Pinot may also be a solution...
I looked it up because I knew a mead brewer a few years ago that said he was going to have to start putting sulfites in his mead soon because he was selling it more and more across country, the same they do with wines apparently.
Southern Colorado Curly
Mix of 2s med-low porosity, med-fine texture, lots of hair