
Your competent partner in the heart of the French Alps
From our office in Chambéry, our team offers expertise in tunnelling, underground spaces, bridges, civil engineering, structural engineering and project management. With a strong local presence, we are ready to support your projects in engineering, design and beyond.
ARX stands as a key player in complex infrastructure projects, bringing expertise and dedication to every challenge.
From major tunnels to large-scale rehabilitation works, we are actively involved in some of the country’s most demanding construction sites. Our teams contribute to engineering management and deliver innovative solutions that keep ambitious projects moving forward.
With a strong presence on the ground, we combine technical know-how and commitment, ensuring that each project meets the highest standards of safety, quality, and efficiency.

Our competences
Construction Management
- Structural, enginnering civil, and underground project coordination
- Risk assessment and management
- Budget and schedule control
- Stakeholder management and communication
- Monitoring of construction progress and adherence to design
- Contract management between Client and Main Contractor
- Onsite quality and HSE assurance control
Engineering design
- Feasibility studies and concept design
- Hydraulic, geological, geotechnical, civil, structural design and dimensioning
- Review and modification of existing