i2C INGENIERIE

What i2C INGENIERIE does

i2C Ingénierie (legal name: Ingénierie et Conception de la Construction) is a privately held French multidisciplinary engineering consultancy (bureau d'études pluridisciplinaire) founded on November 1, 1976, in Rennes, and headquartered in Saint-Grégoire, Bretagne. The firm delivers integrated "Tous Corps d'État" engineering services to project owners (maîtres d'ouvrage) across housing, social housing, senior residences, tertiary, hotel, and building rehabilitation sectors, coordinating structural, MEP/fluids, VRD, and energy performance studies internally from conception through construction execution. Its technical stack is built on BIM modeling (Arche Ossature) and specialized calculation/simulation software (Robot SA, Advance Design, PLEIADE+COMFIE, CLIMAWIN), with OPQIBI certifications across 20 engineering disciplines and RGE accreditation supporting compliance with French thermal regulations (RT2012, RE2020) and environmental certifications (E+C-, NF Habitat HQE, BBC, Passivhaus).

i2C operates as a B22B professional services firm with a team of 18-26 professionals (firmographics indicate 18; the company's website states 26 composed of 5 project managers, 10 study technicians, 4 specialist engineers, and 3 administrative collaborators plus energy performance roles). Revenue is generated through negotiated project-based professional service fees for general engineering missions (MOP from ESQ through AOR), specialized engineering, OPC construction management, and technical consulting/expertise. The firm markets through its professional website, LinkedIn presence, industry references, and regional awards (Pyramides d'Argent 2020 and 2024 from FPI Bretagne). Its client base includes national developers and institutional owners (NEXITY, ESPACIL Résidences, Crédit Agricole Immobilier Promotion, AEGIDE/DOMITYS, Banque Populaire Grand Ouest, Université Rennes 2) and internationally recognized architects (Jean Nouvel, HARDEL LE BIHAN).

The company's geographic focus is regional — primarily Brittany and Western France (Pays de la Loire, with select projects in Île-de-France) — and its competitive positioning rests on local market tenure, multidisciplinary integration, certification breadth, and recurring relationships with major project owners. There is no evidence of external investment, M&A activity, international expansion, or proprietary technology products; growth signals are limited to project portfolio evolution and continued certification acquisition.

Name

i2C INGENIERIE

Legal name

INGENIERIE ET CONCEPTION DE LA CONSTRUCTION

Website

https://i2c-ingenierie.fr

Company type

Private

Founded year

1976

Operating status

Operating

Headcount range

11–50 employees

Short description

i2C Ingénierie is a privately held French multidisciplinary engineering bureau (bureau d'études) founded in 1976, providing integrated structural, MEP, VRD, and energy performance studies for housing, social housing, senior residences, tertiary, hotel, and rehabilitation projects across Brittany and Western France.

Ownership category

akta.pro rank

Product category

Construction Engineering Services

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Testing, Inspection, Certification & Commissioning (TICx) Technical Services (BPAHAIAL)

akta.pro secondary industries

Hard Services (MEP/HVAC, Electrical, Plumbing) (BPABAAAA), Security, Safety & Fire/Life Safety Management (BPABAAAE)

Keywords

• Construction engineering services
• Multidisciplinary engineering consultancy
• Building structural engineering
• MEP systems design
• Energy performance consulting

Headquarters

HQ city

Saint-Grégoire

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering and Design Studies (Maîtrise d'œuvre): The company provides multidisciplinary engineering studies and design services to project owners across construction projects. Revenue is generated through professional service fees for project conception, technical studies, and construction management missions. Services include full-range MOP missions (ESQ through AOR), specialized engineering (structure, fluids, VRD), OPC (planning/coordination), and technical assistance.
2. Specialized Engineering Consultancy: Specialized engineering studies in structural engineering (concrete, timber, metal), climate engineering (HVAC), electrical systems, and VRD, provided as independent or complementary services to general engineering missions. Also includes energy performance diagnostics and optimization studies.
3. Technical Assistance and Expertise: Technical consulting and expert witness services for project owners, including site feasibility analysis, technical due diligence, dispute resolution support, and product development assistance for building product manufacturers.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

I2C Ingénierie is a pluridisciplinary engineering and design bureau (bureau d'études) that coordinates all studies linked to the conception and execution of construction projects internally. It delivers three integrated service lines: Ingénierie Générale (full MOP missions from ESQ through AOR covering housing, social care facilities, tertiary, and hotels), Ingénierie Spécialisée (structural engineering in concrete/timber/metal, fluids/MEP, VRD, and construction site management), and Conseil et Assistance Technique (feasibility analysis, thermal diagnostics, energy optimization, technical expertise, and dispute resolution).

Product overview

I2C INGENIERIE is a pluridisciplinary engineering and construction design bureau offering three integrated service lines: Ingénierie Générale (pluridisciplinary project management studies covering housing, social establishments, tertiary, and hotel sectors), Ingénierie Spécialisée (structural, fluids, VRD, and construction site management services), and Conseil et Assistance Technique (consulting and technical assistance combining generalist and specialist expertise). The company operates with a team of 26 professionals including 5 project managers, 10 study technicians, 4 specialist engineers, 3 administrative collaborators, and energy performance specialists, coordinating all studies internally from conception through construction completion.

Differentiator

Problem solved

Functional benefit

Products and services

• Ingénierie Générale (General Engineering / Maîtrise d'Œuvre) Pluridisciplinary engineering studies in the framework of full project management missions (MOP), covering the full range from preliminary studies (ESQ) through acceptance (AOR). Applies to housing (new or rehabilitated collective construction), social establishments (EHPAD, RPA, Senior Service Residences), tertiary (offices, socio-educational facilities, warehouses), and hotels. Targeted at project owners (maîtres d'ouvrage) including developers, social housing operators, and public entities.
• Ingénierie Spécialisée (Specialized Engineering) Specialized engineering studies in construction techniques, delivered as standalone or complementary services. Covers structural engineering (reinforced concrete, timber, metal frames), fluids (climate engineering, sanitary equipment, electrical and weak currents), VRD (road and miscellaneous networks), and construction site management (temporal and financial management, scheduling/pilotage/OPC). Targeted at project owners requiring specific discipline expertise.
• Conseil et Assistance Technique (Consulting and Technical Assistance) Technical consulting services combining generalists with deep knowledge of construction sciences and techniques alongside specialists in principal applied techniques. Includes feasibility analysis, project evaluation, eco-energy optimization, thermal diagnostics, technical expertise, expert witness work, dispute resolution support, and product development assistance for building product manufacturers. Targeted at project owners, public entities, and manufacturers.

Quantifiable outcome

• L'Arboretum project won Grand Prix Régional at 21st Pyramides d'Argent 2024 (FPI Bretagne)
• +4 more outcomes

Named customers15 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Twelve partnerships are on record, tiered core and minor.

• ANTHRACITE ArchitecturecoreStrategic or Co-development PartnerLead architect for the ARBORETUM project (ZAC Beauregard Quincé, Rennes), a major 145-unit mixed residential development with R+7 and R+16 buildings. I2C serves as engineer (economist, BET fluides, BET structure béton, OPC).
• Atelier WOAminorStrategic or Co-development PartnerCo-architect for the ARBORETUM project, contributing to the R+7 and R+16 building design in collaboration with ANTHRACITE Architecture.
• La Plage Architecture et PaysageminorStrategic or Co-development PartnerLandscape architect for the ARBORETUM project, providing landscaping design services as part of the project team.
• OPQIBI (Organisme de Qualification de l'Ingénierie)coreOthersProfessional qualification body that certifies I2C Ingénierie across 20+ engineering disciplines, validating professional competence for construction engineering assignments.
• JEAN NOUVELcoreStrategic or Co-development PartnerInternationally renowned architect collaborating with I2C Ingénierie as engineer for the Cap Mail project in Rennes (45 residential units, 604 m² commercial space).
• HARDEL LE BIHAN ArchitectescoreStrategic or Co-development PartnerArchitect for CIMEA project (La Courrouze, Rennes) - 34 residential units and offices across 3 buildings R+4 to R+10, with multiple environmental certifications including E+C- E2C1 and NF Habitat HQE.
• Atelier ROBAIN GUIEYSSE / BMC2 ArchitectescoreStrategic or Co-development PartnerArchitecture firm for the Maurepas-Gros Chêne Tour Mounier 5&7 project (180-unit social housing renovation, Rennes), achieving BBC Rénovation label with 45% consumption reduction.
• Université Rennes 2coreStrategic or Co-development PartnerOwner and client for Campus Villejean Building A rehabilitation and elevation project, targeting 60% reduction in energy consumption and RE2020 compliance for extensions.
• CREDIT AGRICOLE IMMOBILIER PROMOTIONcoreChannel Partner/ Reseller/ DistributorReal estate developer client commissioning multiple projects through I2C Ingénierie, including Résidence KUZH-HEOL (Arzon) and Résidence Services Seniors Oh! Activ' (Donville-les-Bains).
• NEXITYcoreChannel Partner/ Reseller/ DistributorMajor French real estate developer commissioning multiple projects through I2C Ingénierie, including Résidence Étudiante (Brest), RSS MARGOT (Ploufragan), and Les Gavottes (Quimper).
• ESPACIL RésidencescoreChannel Partner/ Reseller/ DistributorSocial housing operator commissioning multiple residential projects through I2C Ingénierie, including St Joseph de Porterie (Nantes), Le Melen (Vannes), and Lorient Gare.
• AEGIDE / DOMITYScoreChannel Partner/ Reseller/ DistributorSenior residence developer (AEGIDE) and operator (DOMITYS) commissioning RSS projects including Terres de Légende (Vannes) and Les Voiles Pourpres (Auray), involving 128-142 unit residences.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• setec: Major French engineering group with construction, infrastructure and energy practices. Comparable on engineering services to building developers but operates at national/international scale and with a much broader portfolio than i2C's regional BET focus.
• Artelia: Large international engineering and project management group with significant building, energy and environmental consulting practices in France. Overlaps with i2C on building engineering and energy performance studies but covers a far wider industry and geographic scope.
• Bureau Veritas: Global TIC firm with significant French building and construction engineering services, including energy performance and environmental certification. Comparable on compliance-driven engineering but at vastly greater scale and geographic reach.
• Egis: International engineering group with French building, energy and environmental engineering offerings. Comparable on building construction engineering and energy consulting for developers, but at a national/international scale and broader service portfolio.
• Ginger CEBTP: French engineering and testing group providing building studies, geotechnical, structural diagnostics and environmental services. Overlaps with i2C on engineering studies, structure and energy performance for construction projects, but adds testing/laboratory scale.
• SOCOTEC: French TIC (testing, inspection, certification) and engineering group with substantial building, energy and construction project support. Comparable on regulatory-driven engineering and certification work, though at significantly larger scale.

Direct peers

• AIA Ingénierie: French BET attached to the AIA architectural group, providing structural, MEP and environmental engineering for housing, healthcare, education and tertiary. Closely comparable on service mix, customer segments (developers, public entities) and integrated BIM delivery model.
• OTE Ingénierie: French pluridisciplinary BET (structure, MEP, economics, OPC) serving housing, tertiary, healthcare and industrial clients. Directly comparable as a mid-sized French bureau d'études offering integrated TCE services to the same developer customer base.

Others

• Hardel Le Bihan Architectes: Renowned French architectural firm and i2C's repeat partner on award-winning projects (e.g., CIMEA, Pyramides d'Argent). Not a direct competitor but a tightly co-delivered counterpart in the same Brittany developer ecosystem.

Emerging players

• Burgeap: French environmental and hydraulic engineering consultancy (ENGIE subsidiary) active in environmental due diligence, water and site decontamination for construction projects. Partially overlaps with i2C on environmental engineering studies for project owners.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/i2cingenierie
• YouTubeyoutube.com/channel/i2cingenierie
• Facebookfacebook.com/i2cingenierie
• LinkedInlinkedin.com/company/i2c-ingenierie

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 i2C INGENIERIE