Engineering, systems Integration, and digital services

View the 2025 Annual Report

The Groupe Snef is a French leader in engineering and construction management; the integration and maintenance of electrical and mechanical systems; the design and manufacture of industrial solutions; digital transformation, data management, and cybersecurity; and the development and integration of specialized software for design, product lifecycle, and performance management.

For over 120 years, we have been developing technical expertise to serve industries and infrastructure, both in France and internationally.

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Les marques du Groupes Snef

  • Energie, Nucléaire, Industrie, Marine & Offshore, Infrastructures et Sécurité, Collectivités et Santé.

    Snef intervient sur les métiers de l'ingénierie et de l'intégration de systèmes électromécaniques et d'optimisation énergétique, de systèmes de pilotage et de contrôle des procédés industriels (instrumentation, contrôle commandes, analyse), de systèmes de sécurité (surveillance périmétrique, contrôle d'accès, vidéoprotection, biométrie), des systèmes de climatisation et de chaleur ; enfin, Snef gère la maintenance et l'exploitation des installations, en environnements complexes.

    Découvrez Snef

  • Ingénierie et conception de systèmes complexes, mécanique et maintien en condition opérationnelle.

    Fouré Lagadec est un leader du marché français de la conception et réalisation de sous-ensembles mécaniques et chaudronnés, et du maintien en conditions opérationnelles d'installations de tous les secteurs de la Marine, l'Energie et de l'Industrie.

    Découvrez Fouré Lagadec

  • Ingénierie industrie, automation ingénierie et intégration, ingénierie bâtiment industriel, consulting, ingénierie navale, nucléaire ingénierie et services, ingénierie et expertise de proximité.

    Ekium est une société d'ingénierie, qui intervient tout au long du cycle de conception et de maintien en conditions opérationnelles des bâtiments, installations et process industriels : faisabilité, avant-projet, projet détaillé, management de la construction, maintenance. Ekium est un acteur de la transformation et de la pérennité des installations industrielles, marines et énergétiques ; et des infrastructures.

    Découvrez Ekium

  • Gestion immobilière - Design, programmation, gestion du changement - Conception et réalisation - Gestion de la marque - Mobilier

    Watt audite, conçoit, gère, rénove, aménage des ensembles de bureaux, de commerce et d'espaces d'hospitalité. Watt gère la marque et l'image des entreprises , au travers de leur immobilier.

    Découvrez Watt

Sectors & Services

Groupe Snef operates end-to-end from product design, transformation through to market launch; from energy and raw material production to processing; from infrastructure design and integration to maintenance; and finally, from data management to transformation throughout the entire value chain.

Our Commitment Charters

2025 is a very special year for our company. It marks the end of a 120-year cycle, which is no small feat. The company was founded in 1905 at the Port of Marseille. At that time, it performed electrical work on board ships.
Jean-Pierre Dréau
Chairman of the Snef Group
The Snef Group is experiencing strong momentum. In 10 years, we will have surpassed the symbolic milestones of one billion and then two billion euros in revenue. The Group has undergone a transformation while maintaining a long-term strategy based on technical expertise and close customer relationships.
Stéphane Corteel
Chief Executive Officer of the Snef Group

Sector-based approach

Groupe Snef is involved in every stage of the process—from product design and manufacturing to market launch; from the production and conversion of energy and raw materials; from the design, integration, and maintenance of infrastructure; and finally, from the management to the processing of data that spans the entire value chain.

Nuclear | Marine & offshore | EnergyRefining, petrochemicals, e-fuel, bio-fuels, plastic recycling | Mining, metallurgy, construction materials, cement, glass | Wood, pulp & paper | Real Estate, Hospitality, Retail | Food Industry | Pharmaceuticals, fine chemicals, agro-industry, biotechnology | Gas, hydrogen, carbon capture | Microelectronics | Manufacturing sector, automotive, batteries | Infrastructure, local authorities, healthcare, rail, road, ports, smart cities | Services

2025 Annual Report

Discover a year in the life of the Snef Group: governance, results, expertise, and achievements, both in France and internationally. From projects that defined the fiscal year to the commitments shaping our growth—ranging from the energy transition to industrial decarbonization—this consolidated document brings together our business activities, annual financial statements, governance, CSR, risk factors, and compliance plan.

Download (34 MB)

Nuclear

The Guide to Electronic Billing

The Snef Group’s Electronic Invoicing Guide is available for download below. It contains all the guidelines that must be followed when invoicing the Snef Group’s French entities, and compliance is mandatory as of September 1, 2026.

Download our guide