Arthur Sadoun's Publicis Groupe is planning to buy Xebia France, a mid-sized consulting firm, to combine with existing consultancy operation Publicis.Sapient. Xebia France employs 170 people - the so-called "Xebians" - and works for established clients Axa, Air France and BNP Paribas as well as numerous start-ups. It also runs the annual XebiCon event for ...