Groupe Le du
Groupe Le Du is a family-owned French infrastructure group operating across the Grand Ouest region with 560+ employees and 12 sites, delivering turnkey construction, maintenance, and engineering services for electricity, water, gas, and fiber optic networks, plus electrical systems, hydraulic solutions, and prefabricated concrete manufacturing for public-sector and industrial clients.
- Company typePrivate
- Founded1947
- HeadquartersChâtelaudren, France
- Headcount251–500
- GTM typeB2B
- OfferingServices
What Groupe Le du does
Groupe Le Du is a third-generation, family-owned French infrastructure group headquartered in Châtelaudren-Plouagat (Côtes-d'Armor), operating across the Grand Ouest region of France. Founded in 1947 by Léon Le Du as a concrete-pole manufacturer for rural electrification, the group has expanded into a 560+-employee, 12-site operator running seven sub-brands: LE DU Réseaux, SADER Réseaux, and JPC Réseaux (construction and maintenance of overhead and underground electricity, water, gas, and fiber optic networks), LE DU Énergies (electrical systems from high voltage to low voltage, renewable energy systems, EV charging), LE DU Hydro (water treatment, pumping, storage, and gate/hydraulic systems), LE DU Préfa (prefabricated reinforced concrete products, including 8,000 electrical poles annually and modular blocks such as Béton-titan-XL), and AVEL THOR Solaire (photovoltaic installations, acquired 2025).
The group's core technology spans directed boring for trenchless network installation, integrated electrical design from HV to LV with automation and remote management, hydraulic and water-treatment engineering for territorial/industrial/port applications, and in-house prefabricated concrete manufacturing at the Plélo factory — described as the largest concrete pole facility in western France. Service delivery is turnkey, from engineering studies through installation to maintenance and 24/7 emergency response for climate events.
The business model is a regional B2B direct-field-sales model with a 50/50 split between public-sector clients (collectivités, departments, regions, energy syndicates, water syndicates, the Ministère de la Défense, Chambers of Commerce) and private-sector clients (industrial companies in agro-food, automotive, maritime, asphalt, and quarrying, plus property developers and renewable-energy investors). Revenue is generated through project-based professional services contracts and hardware sales (prefabricated concrete), priced on a custom multi-year contract basis with no public pricing. The group is privately held under the LE DU SERVICES SAS parent entity and remains family-controlled with no external investment.
Groupe Le du firmographics
Firmographics- Name
- Groupe Le du
- Legal name
- LE DU SERVICES
- Website
- https://groupeledu.com
- Company type
- Private
- Founded year
- 1947
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Groupe Le Du is a family-owned French infrastructure group operating across the Grand Ouest region with 560+ employees and 12 sites, delivering turnkey construction, maintenance, and engineering services for electricity, water, gas, and fiber optic networks, plus electrical systems, hydraulic solutions, and prefabricated concrete manufacturing for public-sector and industrial clients.
- Ownership category
- akta.pro rank
Groupe Le du industry classification
Industry- Product category
- Energy and Water Network Infrastructure Services
- NAICS
- Power and Communication Line and Related Structures Construction (237130), Solar Electric Power Generation (221114), Electric Power Generation, Transmission and Distribution (2211)
- SIC
- Electrical Work (1731), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)
- akta.pro primary industry
- Electrical Balance-of-Plant EPC (MV Collection, Cabling, Earthing, Lighting) (EUAEADAB)
- akta.pro secondary industries
- Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations) (EUAEADAA), Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB)
Keywords
Where Groupe Le du is headquartered
LocationHeadquarters
- HQ city
- Châtelaudren
- HQ country
- France
- HQ region
- Europe
Offices5 records
Markets served
Groupe Le du business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Supply Chain, Technology or R&D, Marketing or Sales
Revenue model
- Network Construction and Maintenance Services: Construction and maintenance of electricity, water, gas, and fiber optic networks. Services include studies, construction, installation, securing, and maintenance. Multiple entities (LE DU Réseaux, SADER Réseaux, JPC Réseaux) provide turnkey services.
- Prefabricated Concrete Products: Manufacturing and sale of prefabricated concrete elements including poles (8,000/year), modular blocks, lamp post bases, custom works. Includes delivery and recycling services for old concrete poles.
- Hydraulic Systems and Water Treatment: Design, fabrication, installation, and maintenance of hydraulic systems including pumping stations, water treatment plants, and gate systems for territorial, industrial, and port applications.
- Electrical Systems Services: Conception and implementation of innovative electrical systems from high voltage to low voltage, including renewable energy systems (photovoltaic, wind parks), electric vehicle charging stations, and digital/cybersecurity systems.
- Solar/Photovoltaic Services: Services through AVEL THOR Solaire subsidiary for solar/photovoltaic installations.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom project-based pricing |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels6 records
Groupe Le du product offering
Product offeringCore offering
Groupe Le Du designs, builds and maintains infrastructure networks for electricity, water, gas, and fiber optic across the Grand Ouest of France, delivered turnkey from engineering studies through installation to ongoing maintenance. The group also designs and implements electrical systems (high to low voltage, including renewable energy, EV charging and smart grid), manufactures prefabricated reinforced concrete elements (poles, modular blocks), provides water treatment and hydraulic systems, and delivers photovoltaic solar installations through its AVEL THOR Solaire subsidiary.
Product overview
Groupe Le du is a family-owned infrastructure group operating 7 brands across 12 sites in the Grand West of France. The portfolio comprises four core sub-brands: LE DU Énergies (electrical systems, from high voltage to low voltage, including renewable energies and smart grid solutions), LE DU Hydro (water treatment, pumping, storage, and hydraulic control systems), LE DU Préfa (prefabricated reinforced concrete products including electrical poles and modular blocks), and LE DU Réseaux (construction and maintenance of electricity, water, gas, and fiber optic networks). The group further includes three acquired brands: SADER Réseaux and JPC Réseaux (both specializing in energy network infrastructure), and AVEL THOR Solaire (solar/photovoltaic). Together, the entities provide integrated services from engineering studies to installation, maintenance, and emergency response.
Differentiator
Problem solved
Functional benefit
Products and services
- LE DU Énergies Design, implementation and securing of electrical systems from high voltage to low voltage, including industrial electrical installations, public lighting, fiber optics, automation, supervision, hypervision, remote management, cybersecurity, data management, photovoltaic and wind energy systems, and electric vehicle charging stations. Targeted at public-sector authorities, industrial firms and tertiary-sector clients.
- LE DU Hydro Water management services including water treatment (potable, raw, and wastewater), pumping, storage, and vantelle (hydraulic control equipment) systems for territorial, industrial, fluvial, and port projects. Includes design, fabrication, installation and maintenance of pumping stations and gate systems.
- LE DU Préfa Manufacturing and sale of prefabricated reinforced concrete elements including concrete poles for aerial electrical networks, modular concrete blocks, luminaire bases, slabs and custom-made structures. Includes the Béton-titan-XL stackable modular block for very high retaining walls. Delivers 8,000 poles per year and offers recycling of old concrete poles. ISO 9001 v2015 certified, with CE and NF EN 12843 marking.
- LE DU Réseaux Construction and maintenance of overhead and underground electricity, water, gas and fiber optic networks, including directional drilling (Forage Dirigé) services for trenchless installation. Turnkey delivery from study to installation, securing and maintenance, serving public works clients and industrial sites.
- SADER Réseaux Construction and maintenance of overhead and underground electricity, water, gas and fiber optic networks across Ille-et-Vilaine, Côtes-d'Armor, and Morbihan departments. Operates as an acquired brand retained within the group's network construction offering.
- JPC Réseaux Construction and maintenance of electricity, water, gas and fiber optic networks, based in Ergué-Gabéric in Finistère (29), Brittany. Operates as an acquired brand within the group's network construction entities.
- AVEL THOR Solaire Solar and photovoltaic energy solutions provider, based in Plélo (22). Delivers photovoltaic installations to public, industrial, and private clients as part of the group's renewable energy offering.
Quantifiable outcome
- 8,000 concrete poles produced annually for aerial electrical networks
- +3 more outcomes
Companies that use Groupe Le du
Customer profileNamed customers8 records
Segments4 records
Ideal customer profiles3 records
Groupe Le du technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Groupe Le du partnerships and signals
Strategic signalScale indicators8 records
Recent moves19 records
Expansion highlights7 records
Groupe Le du competitors and assessment
Company assessmentDirect peers
- STPS: Independent French network contractor for electrical, gas, telecom, and fiber deployments, with similar geographic footprint and service scope to LE DU Réseaux.
- Serpollet: French network construction and maintenance specialist (electrical, gas, fiber) operating across multiple regions. Overlaps with LE DU Réseaux' core utility-network EPC activity and serves similar client profiles.
- Sobeca: VINCI subsidiary focused on construction and maintenance of electrical, gas, telecom, and fiber networks in France. Comparable to LE DU Réseaux and LE DU Énergies on activity mix and public-sector client base.
- SADE CGTH: Specialist French contractor for water, sewer, and utility network construction and maintenance - directly comparable to LE DU Réseaux, SADER, JPC, and LE DU Hydro in scope and customer base (collectivités, water syndicates).
Broad incumbents
- Bouygues Energies & Services: Bouygues group division providing energy, digital, and industrial infrastructure services. Comparable on electrical networks and renewable energy projects, with substantially greater scale and geographic reach.
- VINCI Energies: Global multi-technical infrastructure arm of VINCI, active in electrical, telecom, and smart-grid deployment. Competes with LE DU Énergies and Réseaux in tenders and is the parent of Sobeca.
- Eiffage Énergie Systèmes: Division of Eiffage focused on electrical, energy, and digital infrastructure for industrial, tertiary, and public clients. Larger and more diversified than Groupe Le Du, but competes in the same electrical contracting and network modernization space.
- SPIE France: Major French multi-technical services group spanning electrical, mechanical, and digital infrastructure. Overlaps with LE DU Énergies and LE DU Réseaux on network and electrical systems work but with national scale and broader service portfolio.
- NGE (Nouvelles Générations d'Entrepreneurs): French independent infrastructure group covering networks, earthworks, and energy projects. Directly competes with LE DU Réseaux and LE DU Énergies on network construction and renewable energy build-out.
Emerging players
- Fayat Énergie: Independent French contractor grouping several regional electrical and network firms. Comparable multi-brand, multi-region model to Groupe Le Du and competes in similar network and energy works tenders.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Groupe Le du social profiles
Digital presenceGroupe Le du compliance and trust
Trust signalCompliance11 records
Groupe Le du financial estimates
Financial estimateRevenue estimate
Valuation estimate
Groupe Le du leadership team
Management profileNumber of profiles
Profiles5 records
Groupe Le du subsidiaries and ownership
Company hierarchySubsidiaries7 records
Groupe Le du funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Groupe Le du M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Groupe Le du
What does Groupe Le du do?
Groupe Le Du designs, builds and maintains infrastructure networks for electricity, water, gas, and fiber optic across the Grand Ouest of France, delivered turnkey from engineering studies through installation to ongoing maintenance. The group also designs and implements electrical systems (high to low voltage, including renewable energy, EV charging and smart grid), manufactures prefabricated reinforced concrete elements (poles, modular blocks), provides water treatment and hydraulic systems, and delivers photovoltaic solar installations through its AVEL THOR Solaire subsidiary.
Is Groupe Le du a public or private company?
Groupe Le du is a private company. It is classified as family owned and is currently operating.
When was Groupe Le du founded?
Groupe Le du was founded in 1947. It employs 251 to 500 people.
Where is Groupe Le du based?
Groupe Le du is headquartered in Châtelaudren, France, in the Europe region.
How does Groupe Le du make money?
Five revenue lines are on record. Network Construction and Maintenance Services are the primary driver. The others are prefabricated Concrete Products, hydraulic Systems and Water Treatment, electrical Systems Services and solar/Photovoltaic Services.
Who are Groupe Le du's main competitors?
Direct peers on record are STPS, Serpollet, Sobeca and SADE CGTH. Broad incumbents are Bouygues Energies & Services, VINCI Energies, Eiffage Énergie Systèmes, SPIE France and NGE (Nouvelles Générations d'Entrepreneurs). Fayat Énergie is listed as an emerging player.
Does Groupe Le du have an API?
No public API is recorded for Groupe Le du.
What industry is Groupe Le du in?
Groupe Le du's product category is Energy and Water Network Infrastructure Services. Its primary akta.pro industry code is EUAEADAB, Electrical Balance-of-Plant EPC (MV Collection, Cabling, Earthing, Lighting), with a secondary code of EUAEADAA, Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations). Its NAICS code is 237130 and its SIC code is 1731.