TSO Caténaires

Electrification of Railway Infrastructure

16 years of experience


300 members of staff


More than 50

Road-Rail vehicles

Self-propelled Elevating

Platforms, excavators,

cranes, dumpers, Engineering, Trains…


40M turnover


1 200 km

of lines electrified

over the past 5 years



mobilisation capability



TSO CATENAIRES, an expert in the Electrification of Railway Infrastructure.

Design, Procurement, Construction, Testing and Commissioning, Maintenance: the mastering of railway know-how to provide appropriate answers to complex requirements.


Our teams are focused on delivering turnkey projects TSO Caténaires, is a team of professionals, there to help you, experts in the field of Electrification and Remodelling Projects, who handle the project from A to Z.


Adapted and performing Plant.


A dedicated Project Team to ensure the proper delivery of its projects, TSO CATENAIRES offers to all its Main Clients a short decision-making process, appropriate answers and resource optimisation.


Safety: our priority, each and every day

Preserving good health and safety of our personnel is a daily drive of our company.

Training and self-implication of our personnel allows our teams to safety operate on all of our construction sites.





 electrificationappareil de voie

Intercity lines


  • Electrification of new lines (National Network and High Speed Lines)
  • Electrification of operating
  • Railway Lines
  • Remodelling and Maintenance

Urban Lines


  • Overhead Contact System
  • Rigid Overhead Conductor



For Tramways, Trolleys
and Metros



  • Project planning
  • Conception design
  • Principle and basic design
  • Detailed design
  • RAMS studies





Chemin du Corps de Garde
77507 Chelles Cedex, France
Phone: +33 (0)1 64 26 76 27
Fax: +33 (0)1 60 08 52 14



A few references

Rhin-Rhône high-speed line

Electrification, Bourges-Saincaise

Electrification, Bourg-Bellegarde

Electrification, Nantes-Les Sables

Remodelling in all parts of France

Overhead contact rail, RER C high-speed metro line

Le Mans tramway

Lyon tramway

Tours tramway

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