Since you have not received any replies, I'll give some suggestions although it might not help you.
But, first of all, is there a reason the lab must be located in the Southeast?
We have used Ghesquire, Entela and Reliable Analysis Inc. in the past. These are all A2LA accredited labs and should be able to do the testing you require. The only drawback is they are located in the Midwest.
If you would like addresses or phone numbers, let me know.
(This is not an advertisement for the above! Just an answer to a question.)