Huntsville, AL, & Chattanooga, TN both have tech communities. Huntsville has NASA's MSFC and Redstone arsenal, so there's a ton of tech talent from all over the country there. Companies like Boeing, Blue Origin, Lockheed all have a presence. They're now starting to see non government / defense tech companies spring up, Like CommentSold. Gener8tor is launching a new accelerator program there.