Specialist in Sustainable Infrastructure — Finishing Works, Upcycling & Mobility
Sustainable Mobility
Preserve what matters.
Infrastructure Upcycling
Industrial Memory
Your Safety
A mid-sized company with broad expertise · France · Benelux · Europe
Extend the life of infrastructure.
Keep operations running.
Make performance last.
GTA Group partners with owners, operators and industrial clients to drive the energy transition, urban renewal and the decarbonisation of transport and mobility.
Trusted by leading industry players, GTA Group also provides end-to-end project management — coordinating every area of expertise, ensuring seamless execution and committing to results from start to finish.
Extend. Enhance. Regenerate. — Guided by the Regen Sense™ philosophy, GTA Group goes beyond building and upgrading: every solution is engineered for user safety, uninterrupted operations and long-term asset performance.
Who we serve
01
Asset Owners & Operators
Transport infrastructure, tunnels and assets in operation — high-stakes projects with critical service continuity requirements.
02
Tier‑1 Contractors & Civil Engineering Firms
Supporting engineering firms and designers on specialised technical packages, with the reliability of a proven partner.
03
Local Authorities & Public Operators
End-to-end project management, cross-disciplinary coordination and a single point of contact from inspection to final delivery.
Our 5 expert subsidiaries
Five expert companies. One integrated approach.
Five distinct areas of expertise, each directly accessible.
GTA Group backs them with pooled resources that make all the difference on complex projects.
Finishing Works — Tunnels & Civil Structures
Industrial coatings — Fire protection
Multidisciplinary Expertise in Luxembourg
Industrial Upcycling – Regen Sense™
Electrical Infrastructure & Sustainable Mobility
5 subsidiaries — five complementary areas of expertise driving synergies across GTA Group
An integrated group for your complex infrastructure projects in France, Benelux and across Europe
Our 3 core business lines
Finishing Works
Tunnels & operational assets: coatings, equipment, LED relamping and compliance upgrades. Night-time execution with zero service interruption.
Industrial Upcycling — Regen Sense™
Metal structure refurbishment, integrated circular economy and urban furniture compliant with France’s Anti-Waste (AGEC) Act and in line with the EU Ecodesign for Sustainable Products Regulation (ESPR). Every material is a resource.
Sustainable Mobility
EV charging, photovoltaics, smart LED lighting and connected infrastructure. GTA Group drives the energy transition in mobility.
GTA Group functions, fully integrated
Engineering & R&D
Integrated engineering & design office: inspection, feasibility and upstream R&D. Solutions are designed and validated before implementation — a core structural differentiator.
Preventive & Predictive Maintenance
Inspection and management of preventive structure maintenance. Guaranteed operational continuity and predictive intervention planning.
GTA Group in figures
Measurable expertise. Tangible results.
of expertise
complex infrastructure
employees
In-house teams
turnover
GTA Group turnover
countries
where we operate
tunnels
treated and refurbished
unplanned
service interruptions
Regenerate infrastructure.
Secure operations.
Make performance last.
Transport, industrial and urban infrastructure faces an increasingly complex equation:
GTA Group is the specialist in complex infrastructure where reliability and precision are non-negotiable.
From integrated engineering to on-site delivery, our own teams work on structures that tolerate neither improvisation nor compromise.
Where few others can go.
At night, in confined spaces and under live traffic — our teams combine the rigour of a structured group with the responsiveness of a regionally rooted specialist using its own in-house staff. We bring proven technical expertise, rigorous organisation and the unique ability to integrate multiple disciplines into a single project.
From tunnel renovations to pylon refurbishments: we turn your infrastructure constraints into opportunities for lasting performance.
Integrated Engineering & Design
In-house Design, Engineering & R&D
In-house teams — the DNA of a mid-market leader
150 trained, dedicated and available employees
Guaranteed operational continuity
At night, under live traffic, in confined spaces — zero improvisation
Integrated multidisciplinary expertise
A single point of contact from inspection to handover
GTA Group · Founded in 2011
150 employees
8 countries of operation
Integrated R&D
Engineering & Consultancy — Delivery, Preventive & Predictive Maintenance
“We don’t just help shape the future of infrastructure — we reveal what it can still become.”
Regen Sense™ — Regenerating with purpose. Making the old new again.
What GTA Group calls Industrial Memory: the ability to understand a structure, identify its weaknesses and give it a second life — from a technical, regulatory and environmental standpoint.
Julien Feller
Founder & CEO, GTA Group
Recent projects
Real-world projects that show what our teams deliver on site.
E42 Liège Tunnels — Fire Safety Upgrade & LED Relamping in Operation
70,000 m² insulated · N2 fire protection · Night-time works · 3 motorway tunnels
La Lentille — Esch-sur-Alzette: Blasting & Corrosion Protection of an Industrial Icon
5,480 m² treated · UHP blasting · 25-year corrosion protection · GTA Lux
