Olivier Deroubaix was born in Caen in July 1963. After studying modern literature, communication and audiovisual communication, he began his professional career in advertising in companies that would later become some of the largest advertising firms in Paris. He continued in communication and events by co-creating « Polynome Communication » firm in 1996. After a little over 15 years of supporting his clients, both public and private, in their major transformation projects, he decided in 2015 to open a new chapter by co-founding overthemoon with Florence Cathala and Catherine Destriteaux. Overthemoon is a Parisian consulting firm that helps organizations achieve sustainable performance by creating collective dynamics and establishing a high level of team collaboration.