bitcointalk is a forum not a business that you are looking for contact info!
if you have a bitcoin related question then ask it in this board (beginners and help) and other members of the forum will help you.
if you have any question that is related to the forum (the site itself) then post it in Meta section.

also check out other boards in main page https://bitcointalk.org to find appropriate board for any other specific questions you may have