Omexom France

What Omexom France does

Omexom France is the French operating brand of VINCI Energies' energy infrastructure network, operating as an independent integrator of electricity and gas infrastructure with no affiliation to equipment suppliers. The company delivers engineering, procurement, construction (EPC), and maintenance services across the full energy value chain spanning production (nuclear, solar photovoltaic with 1 GW+ installed globally, wind with 5 GW across 245+ projects, hydro), transport (high-voltage lines up to 400kV, underground and overhead), transformation (electrical substations including HVDC and modular PIM solutions), distribution (aerial and underground networks), and territories (public lighting, EV charging, smart infrastructure). It operates through 45+ regional subsidiaries across metropolitan France plus international locations in UK, Belgium, Caribbean, Pacific, and Africa, employing specialists across dedicated functions including Omexom Nuclear Projects (EPR installations), Omexom NDT Engineering & Services (160 specialists with 200+ Cofrend certifications for nuclear inspection), Omexom Major Projects (HV substation EPC), Omexom Conversion & Storage (459 MW / 730 MWh battery storage deployed across 89+ systems), and SDEL Contrôle Commande (300+ automation engineers).

Omexom's revenue model combines project-based EPC contracts, professional services (NDT, engineering studies), and recurring managed services (24/7 O&M, remote monitoring). Proprietary technology includes the AUTEND AI inspection system (developed with Aleia startup and CNRS LAUM, funded by Plan France Relance) for nuclear NDT, Triptop photogrammetric survey technology, Nomad Mapping System for 3D asset capture, AI-powered corrosion detection from drone imagery, FACES fault analysis software, and GDS HV fault detection systems. Pricing is quote-based enterprise engagement with no public disclosure, consistent with custom infrastructure projects.

Customer concentration centers on RTE (transmission), Enedis (distribution), EDF (nuclear and overseas), RATP and SNCF (rail), supplemented by regional energy syndicats, municipalities, independent power producers (Neoen, BNRG), and overseas utility clients. The company holds ISO 9001/14001/45001/19443 certifications, EDF UTO nuclear certification, Qualifelec IRVE and QualiPV solar credentials, and operates the Omexom Institute training platform. Recent strategic emphasis is on the energy transition: solar EPC project capture (eight contracts announced February 2026), battery storage scaling, AI-driven inspection innovation, and nuclear new-build participation across EPR2 in France and Sizewell C in the UK.

Name

Omexom France

Legal name

VINCI Energies Management France

Website

https://omexom.fr

Company type

Private

Operating status

Operating

Headcount range

101–250 employees

Short description

Omexom France is VINCI Energies' French energy infrastructure integrator, delivering EPC, engineering, and maintenance services across production, transmission, substations, distribution, and territories for utilities including RTE, Enedis, and EDF, with strong capabilities in nuclear, solar, and battery storage.

Ownership category

akta.pro rank

Product category

Energy Infrastructure Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Electric Bulk Power Transmission and Control (221121), Electric Power Distribution (221122), Electric Power Generation (22111)

SIC

Electrical Industrial Apparatus (3620), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Transmission line EPC & construction (overhead) (EUADAKAA)

akta.pro secondary industries

Grid Interconnection & Power Evacuation Works (Switchyard, Transmission Tie-ins) (EUAKAAAL), Wind Power Plant EPC (Onshore/Offshore) (EUAEAAAF), Outage Management System (OMS) Software (EUADAEAC), Building Management & Facility Control Systems (BMS/BAS, Power Monitoring, EPMS) (EUAEAFAJ), Wind Balance-of-Plant EPC (Crane Pads, Turbine Foundations, Internal Roads) (EUAEADAI)

Keywords

• Energy infrastructure integration
• High voltage substations
• Renewable energy EPC
• Electricity distribution networks
• Nuclear engineering services

Headquarters

HQ city

Nanterre

HQ country

France

HQ region

Europe

Offices24 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Supply Chain, Marketing or Sales

Revenue model

1. EPC (Engineering, Procurement, Construction) Services: Full project delivery from conception to commissioning for energy infrastructure including photovoltaic plants, substations, transmission lines, and storage systems. Omexom acts as independent integrator selecting optimal technological options without supplier affiliation.
2. Engineering and Technical Studies: Specialized engineering services for nuclear, transmission, distribution including studies, design, qualification of automated control procedures, and technical consulting.
3. Installation and Construction: Construction, extension and renovation of electrical substations, transmission and distribution networks, underground and overhead lines up to 400kV.
4. Operation and Maintenance (O&M): Ongoing maintenance services for energy infrastructure including preventive and corrective maintenance, 24/7 supervision, performance reporting for storage systems and renewable energy installations.
5. Non-Destructive Testing Services: Specialized CND/END services for nuclear power plant critical equipment with highly qualified teams operating 365 days/year, 24h/24, with over 200 Cofrend Level 2 certifications.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Omexom France is an independent energy infrastructure integrator providing turnkey EPC, engineering, construction, and maintenance services across the full electricity and gas value chain: production (nuclear, solar PV, wind, hydro), transport (HV transmission lines up to 400kV), transformation (substations), distribution (HTA/BT networks), and territorial solutions (public lighting, EV charging, smart grids). Specialized offerings include battery energy storage systems (BESS), non-destructive testing (NDT) for nuclear plants, control-command automation, and AI-based inspection technologies.

Product overview

Omexom France is an energy infrastructure integrator and service provider within the VINCI Energies group, offering comprehensive solutions across the entire energy value chain. The portfolio is organized around five core pillars: Production (nuclear, solar, wind, hydro), Transport (electricity/gas transmission), Transformation (substations), Distribution (electricity distribution networks), and Territories (local energy solutions). Key products and sub-brands include the Conversion & Storage division for battery energy storage systems (BESS) with 459 MW/730 MWh installed capacity, Omexom Major Projects for high-voltage substation EPC contracts, Omexom Nuclear Projects for new nuclear installations, Omexom NDT Engineering & Services for non-destructive testing, and SDEL Contrôle Commande for control-command automation systems. The company also provides specialized offerings including solar photovoltaic installations (over 1GW global capacity), wind projects (5GW installed), electric vehicle charging infrastructure, and the Poste Intégré Modulaire (PIM) modular substation solution. Services span engineering, construction, commissioning, and maintenance through a network of regional subsidiaries across France and overseas territories.

Differentiator

Problem solved

Functional benefit

Brands

• Omexom: Core brand for electricity and gas infrastructure services including production, transport, transformation, distribution, and territories.
• Omexom Institute
• Citeos
• Cegelec
• SDEL
• GT

Products and services

• Nuclear Energy Services (Nucléaire) Comprehensive nuclear energy services including control non-destructive testing (CND/END), electrical design and construction (0V to 400kV), instrumentation, control-command systems, and maintenance for nuclear power plant infrastructure. Serves nuclear operators including EDF and international equivalents.
• Solar Photovoltaic EPC Services Solar photovoltaic power plant integration and installation services including ground-mounted systems, rooftop installations, and solar canopies. Over 1 GW of total capacity installed globally; serves IPPs (e.g., Neoen), municipalities, commercial and industrial customers. Includes self-consumption configurations with or without storage.
• Wind Energy EPC Services (Éolien) Wind energy project services including engineering, construction, and maintenance with 245+ projects and 5 GW of installed capacity worldwide. Includes grid integration and electrical infrastructure for wind farms.
• Conversion & Storage (Battery Energy Storage Systems) Large-scale battery energy storage system (BESS) design and turnkey delivery with 459 MW / 730 MWh of installed references, supporting grid stability, frequency regulation (FCR, aFRR), peak shaving, and renewable energy integration. Manufacturing site at Saint-Evarzec.
• High-Voltage Transmission Infrastructure (Transport) Electricity and gas transport infrastructure services including HV transmission line construction and engineering up to 400kV, underground and overhead lines, substation cabling. Serves national and international transmission system operators.
• Electrical Substations (Transformation) Substation and electrical transformation services including construction, extension, renovation, modular design (Poste Intégré Modulaire) and maintenance of high-voltage transformation facilities up to 400kV. Delivered across regional entities and the Major Projects EPC arm.
• Electricity Distribution Network Services (Distribution) Electricity distribution network services including underground and overhead distribution systems (HTA/BT), network modernization, network burial/effacement, preventive and corrective maintenance, public lighting, and lot development. Serves Enedis, regional utilities and EDF SEI across metropolitan and overseas France.
• Territories & Public Infrastructure Solutions (Territoires) Local territory energy solutions including public infrastructure, public lighting, electric mobility (EV charging stations including IRVE-certified), smart grid implementation, telecom civil engineering, and regional energy transition support for municipalities, departments and regions.
• Omexom ENR Antilles — Caribbean Photovoltaic & EV Charging Solar photovoltaic and EV charging infrastructure services in French Caribbean territories including design, installation, maintenance, and performance guarantees. Includes self-consumption configurations and QualiPV/Qualifelec IRVE-certified solutions for municipalities, public bodies, and private commercial customers.
• Omexom Major Projects — HV Substation EPC EPC contractor for high-voltage electrical substations offering complete engineering, civil works, electrical studies, commissioning services, and HVDC stations. Serves RTE, Enedis, EDF and international clients on large complex projects.
• Omexom Nuclear Projects — EPR Electrical Installations Electrical installation services for EPR (European Pressurized Reactor) projects including Flamanville EPR, Hinkley Point C, and new nuclear projects (EPR2, Sizewell C). Holds ISO 19443, APSAD I7, ISO 26000, Qualianor radioprotection certifications.
• Omexom NDT Engineering & Services Non-destructive testing (NDT) services for nuclear power plants including automated inspection systems, eddy current testing, ultrasound (UT/TOFD), leak testing, acoustic emission, and AI-assisted zone identification (AUTEND). Operates 365 days/year, 24h/24 with 200+ Cofrend Level 2 certifications.
• SDEL Contrôle Commande — Substation Automation Systems Control-command and automation systems for electrical substations including engineering, integration, installation, configuration, testing, commissioning, and maintenance services. Includes FACES expert software (incident analysis/fault location on HV networks) and GDS fault detector/localizer. Serves RTE, Enedis and international TSOs.
• Hydroelectric Services (Hydro-électricité) Hydroelectric power plant development, renovation, and maintenance services including turbine equipment, generator systems, and modernization solutions. Serves hydro producers including SHEM.

Quantifiable outcome

• 1 GW+ of solar photovoltaic capacity installed worldwide
• +5 more outcomes

Named customers16 records

Segments8 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability5 records

Feature9 records

Partnerships

Twelve partnerships are on record, tiered core and secondary.

• AleiacoreStrategic or Co-development Partner · 1 January 2022AI startup collaboration on AUTEND project for automatic nuclear power plant inspection using artificial intelligence, supported by Plan France Relance and Bpifrance funding.
• Laboratoire d'Acoustique de l'Université du Mans (LAUM UMR CNRS)coreStrategic or Co-development Partner · 1 January 2022Research collaboration on the AUTEND AI inspection project for nuclear power plants, combining acoustic expertise with industrial application.
• NeoencoreStrategic or Co-development Partner · 28 September 2021Collaboration with Neoen on renewable energy projects including the 11.7 MWc Paulmy solar power plant in Indre-et-Loire, France. Omexom responsible for full construction process from conception to commissioning plus 20-year operation and maintenance.
• RTEcoreStrategic or Co-development PartnerLong-standing relationship for high voltage transmission infrastructure including lines up to 400kV, substations, underground installations. Omexom serves as key contractor for new projects and renovations.
• EnediscoreStrategic or Co-development PartnerDistribution network partnership for grid maintenance, renovation, smart meter integration, and network development across metropolitan France.
• EDF SEIcoreStrategic or Co-development PartnerElectricity distribution services in French overseas territories including Guadeloupe, Martinique, Guyane, Réunion, and Saint-Martin.
• SHEM (Société Hydro-Électrique du Midi)secondaryStrategic or Co-development PartnerRegional energy producer partnership for transport and distribution services in the south of France.
• EDF (Nuclear New Build Program)coreStrategic or Co-development PartnerOmexom Nuclear Projects dedicated to electrical installations of EPR reactors under EDF's New Nuclear program (EPR2, Sizewell C), part of ISDEL Energy.
• BNRG (Ireland)secondaryStrategic or Co-development PartnerPartnership with Omexom UK and RoI for three photovoltaic projects in Ireland for Neoen client.
• EDF SEI (Overseas Territories)coreStrategic or Co-development PartnerSpecialized partnership for photovoltaic installations in Caribbean and Indian Ocean territories under EDF SEI regulations and connection standards.
• Territoire d'Énergie 64 (TE64)secondaryStrategic or Co-development PartnerPartnership for electric vehicle charging infrastructure deployment with 28 charging stations 22kW and supercharger installations on A64 motorway.
• VINCI EnergiescoreOthersParent company providing financial backing, shared services, and ecosystem of specialized energy infrastructure companies across France and internationally.

Scale indicators11 records

Recent moves7 records

Expansion highlights6 records

Regional players

• Framatome: Framatome is a France-based nuclear reactor and fuel cycle specialist that works alongside Omexom Nuclear Projects on EPR electrical installations and instrumentation; while not an EPC competitor for Omexom's electrical scope, it is a key ecosystem partner and a structural indicator of French nuclear project pipeline.

Broad incumbents

• GE Vernova (Grid Solutions): GE Vernova's Grid Solutions business supplies HV equipment and increasingly provides grid integration services; it competes with Omexom Major Projects in HV substation EPC and with Omexom Conversion & Storage in grid-scale storage and renewable interconnection.
• Hitachi Energy: Hitachi Energy is a global leader in HV substation equipment, HVDC, and grid integration; while primarily an equipment supplier, it increasingly acts as an EPC/integrator on large T&D projects, putting it in competition with Omexom Major Projects' high-voltage EPC business.
• ENGIE Solutions: ENGIE Solutions is a broader incumbent in French energy services, spanning district heating, multi-technical building services, and network infrastructure; it overlaps with Omexom's Territories and energy-transition franchises but operates at a much larger, multi-vertical scale.
• VINCI Energies (parent brand): Omexom France sits within VINCI Energies, the parent brand that aggregates multiple specialized energy infrastructure brands across Europe; the Omexom brand competes with sister VINCI Energies brands (Cegelec, SDEL, Citeos) for internal capability allocation and joint bids, making the group both parent and internal peer.
• Siemens Energy: Siemens Energy is a global incumbent in HV substations, HVDC, grid automation, and grid software, supplying and increasingly integrating T&D solutions; it competes with Omexom Major Projects on large substation and HVDC contracts in France and internationally.

Direct peers

• Bouygues Energies & Services: Bouygues Energies & Services competes directly with Omexom on French and international HV substation, distribution, nuclear, and rail electrification contracts, and is one of the principal alternative integrators serving RTE, Enedis, and EDF.
• Eiffage Énergie Systèmes: Eiffage Énergie Systèmes is a direct competitor in French HV substation EPC, distribution network works, and renewable integration; both groups compete head-to-head for RTE, Enedis, and EDF framework contracts and operate similar regional integrated-services models.
• Spie SA: Spie is the closest direct peer to Omexom France: a French-headquartered multi-technical services group providing electrical, mechanical, and digital infrastructure services to utilities, nuclear operators, and industrial customers across the same French T&D, distribution, and nuclear markets that Omexom serves.

Others

• NEOEN (developer/partner): NEOEN is a leading French and international renewable energy developer (solar, wind, storage) for whom Omexom acts as a key EPC and O&M contractor on projects like the Paulmy solar plant; not a direct competitor, but a critical counterpart and barometer for the renewable EPC market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/omexom_official
• YouTubeyoutube.com/channel/UC9bi4uP61TuGr2x1xNDD9RA
• LinkedInlinkedin.com/company/omexom-france
• Instagraminstagram.com/omexom/?hl=fr

Compliance17 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries47 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Omexom France