What CMEG does

CMEG (Coopérative Métropolitaine d'Entreprise Générale) is a French employee-owned construction cooperative (SCOP) founded in 1952 and headquartered in Bretteville-l'Orgueilleuse, Normandy. It operates as a vertically integrated general contractor delivering turnkey construction from initial technical studies through to on-site execution, while also developing and commercialising a portfolio of proprietary prefabricated concrete construction systems: P2P double-skin sandwich panels, P2P Actif active heating/cooling facades (patented in 2015 with ACOME), CCV glass-fibre cement cladding, and specialised formulations including self-levelling waterproof concrete, lightweight insulating concrete, and biosourced lin-based concrete. Production is anchored at three sites — headquarters and main plant at Bretteville-l'Orgueilleuse, the Le Havre office, and subsidiary S2G Préfabrication in Saint-Aubin-sur-Gaillon — which together produce approximately 3,000 concrete pieces annually under a 15-person in-house Bureau d'Études Techniques using BIM workflow.

The company generates revenue through three streams: turnkey general-contracting project delivery for public and private clients, sale of prefabricated facade components via subsidiary S2G Préfabrication to other construction firms, and embedded technical studies/engineering services. Pricing is set on a project-by-project basis through public tenders and direct commercial negotiation, with no published rate cards. Commercial activity is led by named contacts Julien Collette and Alain Petit; clients span regional councils (Région Normandie, Région Île-de-France), the Ministry of Defence (480-dwelling Bricy air-base contract), municipalities (Caen, Le Havre, Poissy, Amiens, Arromanches), social-housing operators (INOLYA, CDC Habitat, Immobilière 3F, LOGEO Seine Estuaire, ADOMA), and private developers/insurers (Nexity, Redman, MMA Assurances, Quevilly Habitat).

CMEG operates under French SCOP cooperative governance (employee-shareholder ownership, no external parent), reports annual revenue of approximately €40M, and employs roughly 200 people across its three production sites and project teams. Certifications include QUALIBAT, QUALIBAT RGE, Marquage CE, BPI Excellence, BIM Compétence, CSTB Technical Avis/ATEx for proprietary products, and compliance with RE 2020 and BEPOS energy-positive standards. Since 2024 CMEG has participated in the Convention des Entreprises pour le Climat (CEC Normandie), targeting a Science-Based-Target-aligned 50% GHG reduction by 2030 and positioning for biosourced/low-carbon construction tenders.

Name

CMEG

Legal name

COOPERATIVE METROPOLITAINE D'ENTREPRISE GENERALE 'CMEG'

Website

https://cmeg.fr

Company type

Private

Founded year

1952

Operating status

Operating

Headcount range

101–250 employees

Short description

French employee-owned construction cooperative (SCOP) founded in 1952, specialising in proprietary prefabricated concrete facades (P2P, CCV, P2P Actif) and turnkey general contracting. Serves public institutions, social-housing operators and private developers across Normandy and the Paris region, generating approximately €40M annual revenue.

Ownership category

akta.pro rank

Product category

General Construction Services

NAICS

Nonresidential Building Construction (2362), Structural Steel and Precast Concrete Contractors (238120)

akta.pro primary industry

Concrete Masonry Units (CMU) & Segmental Concrete Products (IMADAAAC)

Keywords

• General construction contracting
• Prefabricated concrete facades
• Turnkey building delivery
• Architectural concrete systems
• Social housing construction

Headquarters

HQ city

Bretteville-l'orgueilleuse

HQ country

France

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. General Construction / Turnkey Construction: CMEG acts as a general contractor (entreprise générale) delivering construction projects from design through to turnkey handover. Revenue is generated through project-based construction contracts for public and private clients. Services include technical studies, prefabricated concrete manufacturing, and on-site construction execution. The company also operates as a facade supplier through its subsidiary S2G Préfabrication.
2. Prefabricated Concrete Component Sales: Sale of prefabricated concrete elements (panels, facades) to other construction companies or developers. CMEG's subsidiary S2G Préfabrication produces and supplies architectural concrete facades to external clients. Approximately 3000 concrete pieces produced annually at the Bretteville L'Orgueilleuse factory.
3. Technical Studies and Engineering Services: Internal Bureau d'Études Techniques (BET) composed of 15 people providing calculation and design services. Develops BIM management capabilities for collaborative project delivery integrating schedule, cost estimation, 3D modelling, planning, logistics, and quality control.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

CMEG is a French construction company that operates as a general contractor (entreprise générale) delivering turnkey construction projects from design through handover. It combines its own prefabricated concrete manufacturing (including proprietary P2P sandwich panels, P2P Actif active facades, and CCV cladding) with on-site execution to serve public institutions, social housing providers, and private developers across Normandy and the Paris region. The company's subsidiary S2G Préfabrication also supplies prefabricated architectural concrete facades to external construction clients.

Product overview

CMEG (Coopérative Métropolitaine d'Entreprise Générale) is a construction company organized as a SCOP (cooperative of employees) specializing in prefabricated concrete construction systems and general contracting. The company offers a portfolio of proprietary construction solutions centered on innovative concrete facade systems: P2P (sandwich panels), P2P Actif (active heating/cooling facades), CCV (glass fiber cement cladding), and specialized concrete products (self-leveling, waterproof, lightweight). CMEG provides full-service construction delivery including BIM management, operates 3 production sites including subsidiary S2G Préfabrication, and serves clients across Normandy and the Paris region.

Differentiator

Problem solved

Functional benefit

Brands

• S2G Préfabrication: Subsidiary specializing in prefabricated concrete facades, located in Saint-Aubin sur Gaillon (27)

Products and services

• General Contracting / Turnkey Construction Delivery Full general contracting (entreprise générale) covering the entire construction process from technical studies through prefabrication to on-site execution and turnkey handover. Delivered for public institutions, social housing operators, and private developers across Normandy and the Paris region.
• P2P (Panneau Préfa Parement) Sandwich Panels Prefabricated double-skin concrete sandwich panels integrating insulation between two concrete skins with the exterior skin serving as the facade finish. Custom-manufactured to include windows, heating, and electrical conduits. Validated by CSTB Technical Avis. Ensures building longevity, thermal comfort, and minimal maintenance.
• P2P Actif (Active Facades) Active heating/cooling and parietodynamic ventilation facade system developed and patented in 2015 in collaboration with ACOME. Integrates hot water tube networks and preheating of fresh air into prefabricated concrete facades. Validated under CSTB Technical Avis. Optimises occupant comfort and energy efficiency and can be adapted for renovation via the CCV process.
• CCV (Composite Ciment Verre) Cladding System Architectural facing concrete with glass fibres (glass fibre reinforced cement). Large-format cladding panels for new construction or renovation that limit joints and guarantee controlled energy efficiency. Can be coupled with insulation for external thermal insulation (ITE). Validated by CSTB Technical Avis.
• S2G Préfabrication Facade Supply Subsidiary supplying prefabricated architectural concrete facades to external construction clients. Operates from Saint-Aubin-sur-Gaillon (27) as part of the CMEG group network of 3 production sites.
• BIM Management and Collaborative Project Delivery Collaborative working mode integrating professional software and a shared database to manage deadlines, cost estimation, 3D models, planning, logistics, and quality control. Delivered by the in-house Bureau d'Études Techniques (15 engineers) and validated by BIM Compétence certification.

Quantifiable outcome

• Annual production capacity: ~3000 concrete pieces at the Bretteville-L'Orgueilleuse factory
• +3 more outcomes

Named customers24 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Four partnerships are on record, tiered strategic, core and supporting.

• CEC Normandie (Convention des Entreprises pour le Climat)strategicStrategic or Co-development Partner · 1 January 2024CMEG joined the Convention des Entreprises pour le Climat in 2024 via CEC Normandie. This collective initiative prepares organisations for climate change consequences and supports the transition from an extractive business model to a regenerative one. CMEG's climate roadmap targets a 50% reduction in GHG emissions by 2030.
• ACOMEcoreStrategic or Co-development Partner · 1 January 2015ACOME is a strategic co-development partner for the P2P Actif active facade technology. The two companies jointly developed and patented in 2015 a system integrating hot water heating tubes and parietodynamic ventilation into prefabricated concrete facades. The technology has been validated under CSTB Technical Avis. This partnership enables CMEG to offer a differentiated energy-efficient facade solution that can also be adapted for renovation projects via the CCV process.
• AFPA (Association pour la Formation Professionnelle des Adultes)supportingStrategic or Co-development PartnerCMEG collaborates with AFPA to develop a unique training platform for the installation of prefabricated elements. This partnership supports skill development in the construction sector and positions CMEG as a contributor to industry workforce development.
• S2G Préfabrication (Subsidiary)coreOthersS2G Préfabrication is CMEG's subsidiary based in Saint-Aubin-sur-Gaillon (27). It produces prefabricated architectural concrete facades for CMEG projects and external construction clients. While technically a subsidiary, it functions as a key ecosystem partner within CMEG's facade supply chain.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Eiffage Construction: Major French construction player delivering nonresidential buildings, housing, and infrastructure. Comparable as competitor on public sector tenders; CMEG faces its scale, geographic reach, and integrated procurement pricing power.
• Rabot Dutilleul: French construction and real estate developer with prefab concrete capabilities. Comparable in prefab facade offerings and French general contracting market, though broader in real estate development scope.
• Spie Batignolles: Larger French construction company covering building, infrastructure, and energy projects. Comparable in nonresidential building construction capabilities but operates at greater scale and broader geographic scope; competes with CMEG on public tenders.
• Bouygues Construction: Major French construction incumbent operating across building, civil works, and energy. Competes with CMEG on large public tenders despite vastly greater scale, resources, and ability to absorb fixed overhead.
• Vinci Construction: Largest French construction group with broad building and civil engineering portfolio. Competes with CMEG for major public and private construction contracts across France; sets the pricing benchmark on large tenders.

Direct peers

• KP1: French prefabricated concrete elements manufacturer producing structural systems, floors, walls, and facades. Closely comparable to CMEG's prefab concrete facade manufacturing business via S2G Préfabrication, targeting the same French construction market.
• Alkern: French manufacturer of precast concrete products for construction including blocks, pavers, and facade elements. Comparable as a French prefab concrete products specialist serving the same construction market and competing on similar certification-led sales motions.
• GCC (Générale de Construction et de Charpente): French construction specialist focused on concrete-heavy building techniques and general contracting. Comparable to CMEG in mid-sized scale, construction approach, concrete specialization, and presence on regional public tenders.
• Rector (Lesage Group): French leader in prefabricated concrete solutions for residential and non-residential construction. Directly comparable to CMEG in prefab concrete technology, building systems specialization, and serving the same French developer and social-housing client base.
• Léon Grosse: Independent French construction group with similar mid-sized focus, combining general contracting with structural concrete and prefab capabilities and a strong regional footprint. Comparable in independent ownership culture, integrated service model, and craftsmanship-led positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

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Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

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 CMEG