[Be vigilant] Increase in attempts to impersonate Eiffage and its subsidiaries (use of fake email addresses, fraudulent websites, etc.). More details here.

Rail and urban transport infrastructures


Dorsalys solutions and services are aimed at public or private rail and urban transport players, high-speed and regional line operators, and high service level tramway, metro and bus line operators.


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Road transport infrastructures

Our solutions and services are intended for all road transport players: motorway concession companies, operators/managers of dual carriageways, road tunnels and large toll bridges, public transportation organisations and all other companies specialised in the road sector.


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Telecom network solutions


Dorsalys teams provide telecom operators, equipment manufacturers and local authorities with a complete, made-to-measure range of network and telecommunication solutions and services to design, deploy, operate and maintain your telecom networks and equipment.


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Data hosting - Data centre

Data center

Whether you are a hosting provider, a telecommunication operator or a company, Dorsalys experts are there to support you in the construction and securing of your data centres through a turnkey or made-to-measure approach to the design of technical, installation construction and maintenance solutions.


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Energy transmission and distribution

HVB - overhead power lines

From design to operation, Dorsalys develops a multi-technical turnkey offering covering installation and renovation of HVB substations, which are essential elements in the transmission and distribution of electricity.

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Dorsalys combines its expertise, its local presence and its field knowledge to offer turnkey installation of overhead power lines of all voltages not only across France but also in Europe, including Germany and Belgium.

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