Dates in history of TSO, specialist railway and catenary

1927: CreAtion of TSO by Mr Auguste Perron

Founded in 1927, TSO is a company specialized in construction, renewal, laying and maintenance of railways tracks for railways and urban networks.
In 1939, TSO is one of the first railways track companies to work for the French National Railways.

During World War II, the Company ’s activity is deliberately stopped. In 1945, with the creation of the S.N.C.F., the French National Railways, TSO started to work again in taking part in the reconstruction of the French railways network.
TSO is now one of the main French companies in the field.



1964: Mr. Loïc Perron
took the helm of the company

TSO constantly invests in equipment and machineries specialized in construction, renewal and maintenance of railways.


The company owns equipment and machineries with high standards giving TSO an advanced technical expertise and strong competitiveness.


1996: 3rd generation of contractors, Mrs. Emmanuèle PERRON chairs the group

With more than 85 years of experience in France and overseas, TSO provides its high knowledge in railways track activity.


The company has taken an active part in the testing, development and implementation of modern railway techniques: Introduction of concrete sleepers, rail welding, elastic fastenings, continuous welded track, ballast less track and high speed lines…



2011: TSO joins NGE

The link-up between TSO and NGE in 2011 has led to the creation of a new entity with a broader business portfolio, and confirms NGE’s objective of building a multi-business platform in France and overseas around Management of Publics Works Plans.

The organization by specific trade in NGE is the warranty of culture and expertize conservation for each trade, while allowing synergies development.

TSO and NGE have successfully developed in their respective trades. This is due to the following values common to TSO and NGE:respect, ambition, know-how, autonomy.


Egénie and Sages Rail join TSO, strengthening its presence in the South-West of France.


TSO, fondée en 1927, les faits marquants de l'histoire

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