Trainer of whom I'm aware in the Columbia area is Alan Riches (www.technicalsoccer.com).
Others who have trained individuals or small groups in the last few years of whom I'm aware are Heather Frederick (Coach, CSC/CFC) and Keith Shrum (DOC/Coach, LCGSC) -- but I'm not sure if they're doing training any more on an individual/small group basis or outside of their respective clubs.