Helexia, a subsidiary of Voltalia (Euronext Paris, ISIN code: FR0011995588), and an international player in the energy transition, announces the appointment of Bernard Guntz as Chief Executive Officer (CEO), effective beginning of January 2026. This appointment is part of the transformation plan, led by Voltalia, which aims to strengthen performance, efficiency and integration within the Group.
A new chapter for Helexia
After 15 years of committed leadership, Benjamin Simonis, co-founder and CEO of Helexia, stepped down at the end of 2025. His vision and entrepreneurial spirit have been instrumental in the growth and success of the company. Helexia would like to express its sincere gratitude for his commitment and wishes him much success in his future endeavours.
An international profile to support the transformation
With over 25 years of experience in the energy and operations sector, Bernard Guntz has led major international projects in more than 15 countries. He notably spearheaded expansion and integration programmes for Auchan in Central Europe, before overseeing the technical operations of Auchan Retail International worldwide and in France, managing 600 employees in France and major investments. His technical expertise and leadership in driving transformation make him the ideal candidate to guide Helexia through its next phase of growth.
Accelerating performance and synergies
This governance change marks a key milestone for Helexia, which will continue to pursue its ambition to industrialise its processes, harmonise its practices and strengthen synergies with Voltalia to accelerate performance and support sustainable growth.
“I am deeply grateful to all the Helexia teams. Together, we have built a bold and committed international company dedicated to the energy transition. I am confident that the new governance structure will enable the company to continue and amplify this momentum.”
Benjamin Simonis,
Cofounder of Helexia Group
“I am honoured to join Helexia at such a key moment. With the support of the Voltalia Group, we will improve performance by optimising our costs, simplifying and standardising our operating methods.”
Bernard Guntz,
CEO of Helexia Group
