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With more than 90 years’ experience in France and internationally, TSO (subsidiary of NGE) puts its expertise to work on: • rail services resumed between Oloron and Bedous • track construction, replacement and maintenance • electrification and catenary upgrades • survey and rail software development • rail safety • maintenance, repair and rebuilding of powered rolling Developing synergies between the specialties of TSO and the complementary expertise available within NGE allows the Group to offer a comprehensive package for the most technically demanding projects. This ability to work effectively as a team is perfectly illustrated in the delivery of major mobility projects.

TSO Questions

The TSO annual revenue was $351.4 million in 2026.

Gilles Philibert is the Managing Director International Business of TSO.

901 people are employed at TSO.

TSO is based in Chelles, Ile-de-France.

The NAICS codes for TSO are [336, 3365, 33651, 336510, 33].

The SIC codes for TSO are [37, 374].

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