CEME
- Company typePrivate
- Founded1949
- HeadquartersLyon, France
- Headcount5,001–10,000
- GTM typeB2B and B2C
- OfferingServices
CEME firmographics
Firmographics- Name
- CEME
- Legal name
- Volthelia
- Website
- https://groupe-ceme.com
- Company type
- Private
- Founded year
- 1949
- Operating status
- Operating
- Headcount range
- 5,001–10,000 employees
- Ownership category
- akta.pro rank
Where CEME is headquartered
LocationHeadquarters
- HQ city
- Lyon
- HQ country
- France
- HQ region
- Europe
Offices32 records
Markets served
CEME business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales, Supply Chain
Revenue model
- Engineering and Installation Services: Project-based engineering, design, and installation services for electrical, HVAC, and industrial process systems across new construction and renovation projects. Revenue recognized upon project completion and delivery.
- Maintenance and After-Sales Services: Preventive and corrective maintenance contracts covering multi-technical building systems. Provides recurring revenue through long-term maintenance agreements with clients across tertiary, industrial, and healthcare sectors.
- Industrial Process and Cleanroom Solutions: Specialized cleanroom design, construction, and related infrastructure for micro-electronics and pharmaceutical industries. Delivered as turnkey projects, supplemented by ongoing technical support.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | B2B engineering services — project-based pricing negotiated per engagement |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels7 records
CEME product offering
Product offeringCore offering
CEME is a French multi-technical engineering group delivering integrated electrical engineering, climate/HVAC engineering, and industrial process services across the full project lifecycle — conception, réalisation, and maintenance. Through a network of 30+ wholly-owned operating entities across France, it serves industrial, datacenter, healthcare, retail, nuclear, logistics, and public-sector clients with specialized capabilities in cleanrooms, high-efficiency datacenters (PUE 1.15), nuclear-sector electrical work, photovoltaic systems, and industrial automation.
Product overview
CEME is a multi-disciplinary engineering group offering integrated services across three core domains: Electrical Engineering (Génie Électrique), Climate Engineering (Génie Climatique), and Industrial Process (Process Industriel). The company provides comprehensive solutions from design to implementation and maintenance, organized around specialized services including cleanrooms (Salles Propres), energy storage, photovoltaic systems, specialized electrical activities, nuclear sector expertise (SEQUOR), and datacenter infrastructure. The portfolio is delivered through a network of 30+ operational entities across France, offering multi-technical maintenance services alongside specialized offerings. Recent acquisitions including VÊPRES (cleanrooms) and Groupe Ovalt (industrial process) have expanded capabilities in micro-electronics and industrial automation.
Differentiator
Problem solved
Functional benefit
Brands
- SEQUOR: Entité spécialisée dans l'industrie nucléaire, apportant savoir-faire multi technique aux principaux acteurs de la filière
- Vêpres
- Groupe Ovalt
- DIADEM
Products and services
- Génie Électrique (Electrical Engineering Services) Design, installation, and implementation of electrical systems (strong current and weak current) for buildings, industrial facilities, datacenters, nuclear sites, and logistics hubs. Includes electrical distribution boards, fire safety, and complete electrical infrastructure for new builds and renovations.
Quantifiable outcome
- Delivered datacenter with PUE of 1.15 — among the most energy-efficient in Europe — serving a leading hyperscale client
- +4 more outcomes
Companies that use CEME
Customer profileNamed customers55 records
Segments9 records
Ideal customer profiles7 records
CEME technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
CEME partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered core acquisition/integration.
- Groupe Ovaltcore acquisition/integrationGroupe Ovalt was acquired by CEME in 2026. Ovalt brings process industrial solutions and automation technologies to CEME, including entities OET Automation, PGC, CIP Automation, and ID Automation. This integration extends CEME's industrial automation capabilities and adds complementary technologies.
- Technichauffe, Eermes Concept, Cap Maintenancecore acquisition/integrationCEME acquired three companies in 2025 — Technichauffe, Eermes Concept, and Cap Maintenance — all specializing in HVAC engineering (studies, works, and maintenance) based in Benfeld, France. This cluster acquisition strengthens CEME's climate engineering capabilities in the Alsace region.
- Climeleccore acquisition/integrationCEME acquired Climelec in 2024, a company specializing in electrical engineering, HVAC, maintenance, and automation based in Marseille. This acquisition extends CEME's presence and capabilities in the Provence region.
- Riallin-EMScore acquisition/integrationCEME acquired Riallin and EMS in 2024, both based in Plessé (Loire-Atlantique). Riallin specializes in HVAC engineering while EMS provides emergency repair, maintenance, and small HVAC works. This acquisition expands CEME's presence in the west of France.
- Vêprescore acquisition/integrationVêpres, a cleanroom design and construction company based in Claix (Isère), was acquired by CEME on June 29, 2023. Vêpres generated €22M in revenue with 80 employees. Its expertise in micro-electronics cleanrooms complements CEME's capabilities in high-tech industrial infrastructure. Vêpres also operates Vêpres Suisse in Thônex, Switzerland.
- Gergaud Industriecore acquisition/integrationCEME acquired Gergaud Industrie in 2023, specializing in electrical engineering and photovoltaics, based in Redon (Brittany). This acquisition adds solar energy expertise to CEME's capabilities.
- ASIELcore acquisition/integrationASIEL was acquired by CEME in 2022, specializing in electrical engineering, industrial automation studies and installation. Based in Normandy.
- Sequorcore acquisition/integrationSequor was acquired by CEME in 2022, specializing in electrical engineering and nuclear sector expertise, based in Laudun-l'Ardoise (Gard). SEQUOR holds all required certifications and qualifications for nuclear site access.
- MG Eleccore acquisition/integrationMG Elec, specializing in electrical engineering, was acquired by CEME in 2021 and operates as an agency of CEME Atlantique in Niort.
- Soviasyscore acquisition/integrationSoviasys, specializing in electrical engineering and weak current systems, was acquired by CEME in 2021 and operates within CEME Aquitaine in Bordeaux.
Scale indicators7 records
Recent moves6 records
Expansion highlights6 records
CEME competitors and assessment
Company assessmentDirect peers
- Spie: French-listed multi-technical engineering services group providing electrical, HVAC, and industrial process solutions across Europe. Closest large-cap peer to CEME in service mix and client base, though materially larger in scale.
- Vinci Energies: Subsidiary of Vinci SA, offering multi-technical engineering, installation, and maintenance services for infrastructure, buildings, and industry. Directly comparable across electrical, HVAC, and industrial automation verticals.
- Eiffage Énergie Systèmes: Division of Eiffage Group focused on electrical, HVAC, and energy systems design and maintenance for buildings and industry. Strongly comparable geographic and service profile, with significant nuclear and datacenter exposure.
- Bouygues Energies & Services (Equans): Equans (post-Bouygues spin-off and ENGIE acquisition) provides multi-technical services in electrical, HVAC, and facility management. Overlapping customer base across French tertiary, industrial, and public sectors.
- Engie Solutions: ENGIE's B2B services arm delivering HVAC, energy efficiency, and multi-technical facility solutions. Comparable in climate engineering, datacenter, and energy transition services.
- Dalkia (EDF subsidiary): EDF-owned energy services firm specializing in HVAC, district heating/cooling, and industrial energy efficiency. Directly comparable in climate engineering and energy transition projects.
- Hervé Thermique: French HVAC and multi-technical services firm (now part of Spie group) historically focused on climate engineering and maintenance. Closely aligned with CEME's Roche and Diadem entities in service offering and customer type.
- Ineo (Engie Solutions subsidiary): ENGIE Solutions brand for electrical engineering, network infrastructure, and industrial process. Comparable across nuclear, datacenter, and cleanroom-adjacent work.
Emerging players
- Snce (Société Nationale de Construction Électrique) and similar regional ETIs: Smaller French ETIs in multi-technical engineering with regional footprints. Direct competitive overlap in mid-market and regional tenders where CEME's local entities compete head-to-head.
Broad incumbents
- Spie Batignolles: French construction and multi-technical engineering group with electrical, HVAC, and industrial services. Broader portfolio than CEME but overlapping customer base in French industrial and tertiary markets.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks7 records
Key highlights7 records
Customer concentration
CEME social profiles
Digital presenceCEME compliance and trust
Trust signalCompliance2 records
CEME financial estimates
Financial estimateRevenue estimate
Valuation estimate
CEME leadership team
Management profileNumber of profiles
Profiles1 record
CEME subsidiaries and ownership
Company hierarchySubsidiaries24 records
CEME funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
CEME M&A and investment
M&A and investmentM&A1 record
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about CEME
What does CEME do?
CEME is a French multi-technical engineering group delivering integrated electrical engineering, climate/HVAC engineering, and industrial process services across the full project lifecycle — conception, réalisation, and maintenance. Through a network of 30+ wholly-owned operating entities across France, it serves industrial, datacenter, healthcare, retail, nuclear, logistics, and public-sector clients with specialized capabilities in cleanrooms, high-efficiency datacenters (PUE 1.15), nuclear-sector electrical work, photovoltaic systems, and industrial automation.
Is CEME a public or private company?
CEME is a private company. It is classified as private equity controlled and is currently operating.
When was CEME founded?
CEME was founded in 1949. It employs 5,001 to 10,000 people.
Where is CEME based?
CEME is headquartered in Lyon, France, in the Europe region.
How does CEME make money?
Three revenue lines are on record. Engineering and Installation Services are the primary driver. The others are maintenance and After-Sales Services and industrial Process and Cleanroom Solutions.
Who are CEME's main competitors?
Direct peers on record are Spie, Vinci Energies, Eiffage Énergie Systèmes, Bouygues Energies & Services (Equans), Engie Solutions, Dalkia (EDF subsidiary), Hervé Thermique and Ineo (Engie Solutions subsidiary). Snce (Société Nationale de Construction Électrique) and similar regional ETIs is listed as an emerging player. Spie Batignolles is listed as a broad incumbent.
Does CEME have an API?
No public API is recorded for CEME.