Atlanta is a very dynamic city of the USA. Being the 9th economy in the US, there are also many web and marketing agencies.

The SEO Agency PTI-Intl from Atlanta has created a page dedicated to many of the best seo companies that you can find in Atlanta. Of course this list is not yet complete, but don't hesitate to drop them a little message to be added to the list, they are very friendly and fun to work with !