A bit more info:
Raul Mesa was a professional rider for a short time before becoming director of the Cafe de Colombia, and later, Postobón teams. He also built frames for the RDM team as well as his own brand. More here:
http://www.alpsandes.com/posts/clinginquisition.com/2012/07/postobon-other-colombian-team-part-1.html
Raul Mesa cyclery operates in Medellin.