At Blue Sheep, Last is charged with ensuring that the agency keeps ahead of industry advances, using his experience in database and analysis.
Before joining Identex, Last founded his own marketing database services company, Windmill Associates, which he sold to Database Group in 2001.
Richard Lee, managing director of Blue Sheep, said: "We are thrilled to welcome Chris on board. He brings a wealth of knowledge which is fundamental for us to keep ahead of the competition."