You may not believe me, but I do believe I have found Clark Stacey, CEO of Smart Bomb Interactive's account. The username is simply 'clark'. I have seen pictures about AJ (some official articles I believe) with the shown username 'clark'.
Oh, and there are a few betas in there too ^O^
I might say a few things more by editing or this post, or even a comment...
Anywho, have a nice night/day!