The project companies


LISEA is the concession holder for the Sud Europe Atlantique Tours-Bordeaux high-speed line (SEA HSL). As part of the concession contract with SNCF Réseau signed in June 2011, LISEA is responsible for financing, designing, building, maintaining, and operating the new HSL until 2061 (50 years).

Découvrez la LGV SEA Découvrez la LGV SEA

Eiffage Rail Express (ERE)

Eiffage Rail Express (ERE), a subsidiary of Eiffage group, signed a partnership agreement with SNCF Réseau to finance, design, build, and maintain the new Bretagne-Pays de la Loire high-speed line (BPL HSL) until 2036.

Découvrez la LGV BPL Découvrez la LGV BPL


In June 2012, Oc’Via signed a Public-Private Partnership agreement with SNCF Réseau for the Nîmes and Montpellier railway bypass (CNM). Oc’Via is responsible for financing, designing, building, and maintaining this new railway line until 2037.

Découvrez le contournement de Nimes et Montpellier Découvrez le contournement de Nimes et Montpellier


SYNERAIL was awarded the partnership agreement to install GSM-R technology, which went into effect in early 2017. Under the terms of the partnership agreement signed in February 2010, SYNERAIL is responsible for designing, building, operating, maintaining, and financing the deployment of GSM-R on 16,000 kilometres of the French rail network until 2025.

Découvrez le système GSM Rail Découvrez le système GSM Rail

Hervé Le Caignec graduated from École Spéciale des Travaux Publics (TP86) and started his career building and maintaining road infrastructure.

He then oversaw the development and operation of major infrastructure through Public-Private Partnerships (PPP) both in France and abroad. He spent 14 years at the VINCI Group, 4 years at SNCF, and 10 years at the Caisse des Dépôts Group. In March 2017, he was named Chairman of LISEA, the concession holder for the Tours-Bordeaux high-speed line.

A graduate of École Nationale des Ponts et Chaussées, Gilles managed the Île-de-France regional branch for Egis Aménagement (transport and mobility engineering, urban development, etc.). He then served as Managing Director of the European Economic Interest Grouping that manages and operates the Mont Blanc Tunnel for ATMB and the Italian Mont Blanc Tunnel Company (SITMB).

He became the new Managing Director of Oc’Via on 1 May 2019.