It's Actually the "Classic comm" venders. You can get to them on a low level toon. But you will not be able to earn the commendations.
These venders are found in any of the daily mission areas. When you hit level 50 a few automatic missions will show up either on your mission list - or in the endgame PvE mission terminals that will point you to those areas.
That's my bad - I didn't have the game open at the time and wasn't really thinking
Thanks for the correction.