2008 - Relocation to Noordwijk
2006 - AOES established a subsidiary in France.
2004 - AOES opened a subsidiary in Germany in 2004. Subsidiaries in the United Kingdom and Switzerland became operational in 2005.
2003 - A management buyout of Atos Origin Engineering Services created the independent company AOES.
2000 - ATOS acquired the IT branch of Philips, known today as Atos Origin. Atos Netherlands B.V. became Atos Origin Engineering Services BV.
The Medialab (Visual Communication) was added to the company’s service portfolio.
 
1998 - Sligos-Marben and French company Axime, merged to form Atos Group. Their Dutch subsidiary, S.I. IKOSS Leiden, became Atos Netherlands BV.
Aircraft Engineering was added to the company’s service portfolio.
 
1995 - S.I. IKOSS established its office for aerospace activities in Leiden, NL.  
1994 - Sligos Marben purchased IKOSS GmbH, Germany.  IKOSS GmbH  became S.I. IKOSS GmbH.  
1990's - IKOSS expanded ESA business, and started Catia/TDE activities.  
1980's - IKOSS GmbH, in Stuttgart started aerospace activities with the European Space Agency.  
1970's - IKOSS GmbH, was founded in Stuttgart, Germany.