AMESYS is a consulting company and an industrial group created in 1979 active in Defense & aerospace, aeronautics, transportation, RF and homeland security markets. Acquired in 2004 by CRESCENDO INDUSTRIES, it has recorded a 25% yearly growth and a double digit profitability ratio since then. AMESYS has become part of the BULL Group in 2010. Amesys integrates Atos group in August' 2014 as Big Data & Security, Outsourced R&D