Arnaud Massonnie is a Co-Founder and serves as Managing Partner at 55. Arnaud started working at Havas Interactive, the Vivendi group's internet lab, before becoming Monster.com's Marketing Director in France. He then developed De Agostini Atlas's e-learning division. During these busy years, this tireless EDHEC Business School graduate also managed to found 2 start-ups, including a social network later sold to Le Figaro group. In 2005, he joined Google to be Head of Sales Operations for Southern Europe.