You mean like merchants? I am not really sure if there are RACE/JOB specific guilds out right now, or if there will even be any, since they will most likely lack some other important aspects.
But you are always welcome to join us, at Hellsing. We are an evil/lawfull guild, with as of now 12 members. We are always lacking in the magic/trades/thievery department, since most of the ppl want to play as fighters, or smiths. There is a link below my sig, you are welcome, as i said, to check us out.