GTA Group · Mid-sized company · France · Benelux · Europe
GTA Group — 15 years of expertise in complex infrastructure
Founded in 2011, GTA Group brings together 150 people and 5 expert subsidiaries with one shared mission: to regenerate, protect and equip transport infrastructure, mobility assets and urban furniture.
Meet the leaders at the core of our organisation
GTA Group · Founded in 2011
Our story.
Our vision.
GTA Group was born from a deep conviction: the infrastructure essential to mobility and industry must be made to last, modernised and adapted to tomorrow’s challenges — without ever compromising on operational continuity or user safety.
Since its creation, GTA Group has grown around complementary technical skills, able to intervene across the entire life cycle of structures:
Engineering & Design Office
Finishing Works
Sustainable Mobility
Industrial Upcycling
Preventive & Predictive Maintenance
Regen Sense™ R&D
Today, GTA Group is an integrated mid-market leader, organised around 5 expert subsidiaries to support our clients in a fast-changing landscape shaped by evolving safety standards, environmental imperatives, the drive for economically responsible solutions and the critical need to keep infrastructure in service.
Our objective is clear: to be a long-term partner capable of anticipating tomorrow’s technical, regulatory and environmental challenges — backed by our own in-house teams, our integrated engineering & design office and our Regen Sense™ R&D.
Present in France, Benelux and across Europe, we operate on large-scale projects — tunnels, transport infrastructure and urban furniture — with a single requirement: to deliver what we promise.
Founded in 2011
150 employees — in-house teams
Active in 8 countries
Integrated R&D, Engineering & Design
15 years of on-site innovation
Our fundamentals
Governance & Commitment
Sustainability
We design solutions built to last. Regenerating, protecting and extending the life of infrastructure — with a circular economy approach by design.
Performance
Performance is measured, monitored and controlled. Every technical detail contributes to overall reliability — from engineering to on-site delivery.
Innovation
Innovating means adapting methods, integrating the right technologies and rethinking existing assets with precision. Our Regen Sense™ R&D generates pioneering solutions.
Excellence
Excellence is a daily requirement, driven by committed teams, rigorous processes and an integrated engineering & design office that validates every solution.
GTA Group · Philosophy
Building the future, together.
GTA Group’s philosophy is based on a responsible approach to resources, a culture of applied innovation and a constant commitment to quality and safety. Our multidisciplinary organisation allows us to adapt our level of involvement: from specialist assignments to the overall management of complex operations.
“Our convictions are more than just words. They come to life on the ground, in every project and every challenge we take on.”
Julien FELLER
Founder & CEO, GTA Group
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GTA Group · The founder’s vision
Julien FELLER
“Since our beginnings, GTA Group has been built around a simple idea: the infrastructure we transform today shapes the safety, mobility and performance of tomorrow.”
“Our role is not limited to executing works. We support our clients in making strategic, often complex decisions, where technical, regulatory and operational requirements must be perfectly aligned.”
“GTA Group’s strength lies in combining technical expertise, a spirit of innovation and human commitment. This culture allows us to deliver solutions that are sustainable, tailored and responsible.”
“Building for tomorrow means embracing high standards, rigour and continuous improvement. It is also a collective adventure, made possible by the trust of our clients, partners and employees.”
Our team
GTA Group’s leadership team
Julien Feller
Co-founder & CEO — GTA Group
GTA Group relies on its expert subsidiaries, each a leader in its field, working together in operational synergy.
“GTA Group’s strength lies in combining technical expertise, a spirit of innovation and human commitment. This culture allows us to deliver solutions that are sustainable, tailored and responsible.”
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Alexandre MÈGE
Co-founder, GTA Group · Managing Director, GTA Coatings
Specialist in technical coatings, passive fire protection, refurbishment and decontamination.
GTA Coatings
GTA Coatings extends the service life of structures in demanding environments.
Maxime CAVALLINI
Managing Director — GTA Infra
Specialist in civil engineering structures and complex infrastructure (bridges, tunnels and underground structures).
GTA Infra
GTA Infra brings structures into compliance, modernises them and ensures their safety across Europe.
Olivier BECKER
Managing Director — GTA Lux
Based in the Grand Duchy of Luxembourg, GTA Lux deploys the full range of GTA Group’s expertise.
GTA Lux
GTA Lux deploys the full range of GTA Group’s expertise for public infrastructure, industrial sites and public-access buildings, with an integrated multi-service approach.
Lionel GUIBERT
Managing Director & Partner — GTA Eprolor
A leading player in refurbishment and powder coating, EPROLOR gives metal equipment a second life.
GTA Eprolor
EPROLOR refurbishes urban, road and industrial metal equipment, with an upcycling and circular economy approach.
Mourad SADI
Managing Director & Partner — GTA Axyscom
Specialist in electrical infrastructure, telecoms and EV charging infrastructure.
GTA Axyscom
Axyscom manages the removal, refurbishment, reinstallation and recommissioning of equipment.
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The volumes that make the difference — consolidated GTA Group figures
Performance in action
Maintenance
performed / year
Finishing works
installed / night
Tunnels
coated (all types)
Corrosion protection
sprayed (total)
Intumescent
installed / year
Upcycling
Regen Sense™
Trusted by
Project Owners — Engineering Firms & Designers — General Contractors & Consortium Leaders — France, Belgium, Luxembourg & Europe
Project owners
SNCF
RATP
ADP — Paris Airports
APRR
COFIROUTE
NATO
ATMB — Mont-Blanc
Femern A/S
Paris La Défense
City of Paris / SEMAPA
CUGL — Greater Lyon
…
Engineering Firms & Designers
Ingérop
Setec
Egis
Arcadis
Sweco
Artelia
BG Ingénieurs Conseils
SCHROEDER & Associés
INCA
CETU
…
General contractors & consortium leaders
Bouygues Travaux Publics
Eiffage Génie Civil
VINCI
BESIX
Jan De Nul
Demathieu Bard
SPIE Batignolles
Colas
Freyssinet
Galère
VALENS
…
Consortia & major international projects
COTU — Oosterweel
Femern Link Contractors (FLC)
BESIX / DEME / Jan De Nul / Stadsbader
Denmark–Germany international consortium
…
