Could you elaborate? Your question is a little confusing to me. Contractor? Or Fabricator?
It you are just looking for granite counter-tops, then there is a useful contractor search tool at the top of this screen. There are some very talented fabricators in this forum.
I just checked and you can't search for counter-tops however you can use this search to find a few who have answered questions.- http://www.hometalk.com/?filter=countertops&search=question
http://granitecountertopsunlimited.com/ Here is a link to company down that way... It is a family owned company, and you will enjoy speaking with them. They are very helpful and their site is great! Good luck!
Ben - there are several reputable companies in Alpharetta, so dont think you need to drive too far!
Look no more and give me a call. Stone Solutions