March 1998Formation of "Atena Gesellschaft für Engineering Services mbH" (Joint-Venture of MTU Aero Engines and Brunel International)
January 2002MTU Aero Engines takes over ATENA shares from Brunel
July 2003Formation of Atena India Private Limited
April 2004Named into "Atena Engineering GmbH "
July 2005Assystem became Shareholder of Atena
June 2008BU Technology & Systems renamed to "Silver Atena Electronic Systems Engineering GmbH"
April 2012SILVER ATENA became 100% subsidiary of Assystem
February 2019Assystem Germany rebrands as Expleo
Oktober2019"Silver Atena Electronic Systems Engineering GmbH" renamed to "Silver Atena GmbH"


Dachauer Strasse 655
80995 Munich, Germany
+49 89 189600 - 0

We offer comprehensive solutions as development partner and supplier for prototypes and small series in the area of safety-critical systems and power electronics.