Ace Management becomes Ace Capital Partners

Stéphane Mayer

Stéphane joined ACE Capital Partners as Operating Partner in 2021.

He began his career in finance, first as external audit, then head of internal audit of the Lagardère - Matra Hachette group and then chief financial officer of Matra Automobile. 

From 2003, he led 4 international industrial companies in the aeronautics and defense industry, where he carried out transformation, performance improvement, development, growth and value creation.

Within the Airbus group, he was Chairman and CEO of EADS Socata (TBM range), then CEO of ATR. Two new aircraft versions were developed and launched, the TBM 850 and the ATR 600 series. 

In 2010, he joined the Daher group, as CEO of the aeronautics and defense business unit and also became deputy CEO of the group. He drove the profitable growth of the aerospace and defense business, and launched the new TBM 900.

At the end of 2015, he became Chairman and CEO of Nexter, a land defense system manufacturer, and co-CEO of KNDS, a Franco-German joint venture. The group reached its commitments, especially for SCORPION program, has invested, recruited, innovated, and returned to growth. Thanks to record order intakes, its visibility is assured with a backlog of six years, both for France and for export. 

From 2016 to 2020, he was twice elected President of GICAT (grouping of French land defense and security industries) and became an Honorary President. From 2020 to 2021, he was appointed President of CIDEF (council of French defense, aeronautical, naval and land industries).

  • Ecole Polytechnique
  • Sciences-Po Paris
  • ENSAE (Ecole Nationale des Statistiques et de l’Administration Economique)
  • Chevalier de la Légion d’Honneur
  • Chevalier de l’Ordre National du Mérite
  • Médaille de l’Aéronautique
  • Colonel de la réserve citoyenne de l’armée de l’air et de l’espace
  • Pilote qualifié pour le vol aux instruments et le TBM
Team: Operating group
Office: Paris
Sector: Aerospace & Defence