What B27 does

B27 is a French multi-specialist engineering firm (bureau d'études) that provides integrated technical engineering and consulting services to the construction sector. Formed in 2020 from the merger of five specialized teams (Archimen, BIGS, Codibat, EDDA Ingénierie, and SD Environnement), the firm brings together more than 15 engineering specialties under one roof, including AMO (project owner assistance), TCE (all-trades technical building engineering), structural and fluid engineering, thermal/building envelope, construction economics, sustainable development, VRD (infrastructure), landscape, safety/security, and BIM/CIM/TIM digital modeling. B27 positions itself as the "missing link" between large generalist engineering groups and small specialized BET firms, delivering complex multi-disciplinary projects through an "interlocuteur unique" (single point of contact) model.

The company serves property developers and investors, architects, industrial operators, educational institutions, social/intermediate housing providers, and public authorities. Its reference base is broad and cross-sectoral, spanning wine and spirits (Domaine Leflaive), cinema (UGC), retail and real estate (Auchan, Unibail-Rodamco-Westfield, Eiffage Immobilier), education (SKEMA Business School, Groupe IGS), industry (Groupe SEB, TERREAL, Ravoire et Fils), energy and hydrogen infrastructure (Dijon Métropole, ISTHY), and healthcare/lab facilities (Eurogentec). B27 has developed differentiated expertise in eco-innovation, including biosourced materials, 100% recycled concrete (RECYGÉNIE project), and hydrogen infrastructure engineering. It is ISO 9001 and ISO 14001 certified and operates BIM-first methodologies with a reported 53,000 models in progress.

B27 operates a professional-services revenue model, generating income through project-based engineering consulting and technical studies fees; pricing is per-project and not publicly disclosed. Its go-to-market is sales-led and reputation-driven, relying on direct enterprise field engagement, case studies, referrals, and press coverage. The firm is a French SAS with capital of €104,082, reported CA 2023 revenue of €18 million, a headcount of roughly 128–151 people, and a national footprint of 9 regional agencies (Paris HQ plus Clermont-Ferrand, Lyon, Bordeaux, Dijon, Blois, Aix-en-Provence, Puget-sur-Argens and others), with at least one cross-border project reference in Belgium.

Name

B27

Legal name

B27

Website

https://b27.fr

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

51–100 employees

Short description

B27 is a French multi-specialist engineering firm (bureau d'études) combining 15+ construction-engineering disciplines under one roof, serving property developers, architects, industrial operators, public authorities, and educational institutions on structural, thermal, sustainability, and BIM-based projects.

Ownership category

akta.pro rank

Product category

Construction Engineering Services

NAICS

Engineering Services (541330), Engineering Services (54133), Architectural, Engineering, and Related Services (5413), Environmental Consulting Services (54162), Management Consulting Services (54161)

SIC

Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700), Services-Management Consulting Services (8742)

akta.pro primary industry

Construction Engineering & Constructability Consulting (BPAHAIAN)

akta.pro secondary industries

Systems Engineering & Technical Program Management (BPAHAIAI), Construction Program Management (Multi-site/Portfolio) (IMAFAAAF), Environmental Compliance & Permitting (BPAHAJAA)

Keywords

• Construction engineering services
• Multi-specialist engineering bureau
• BIM digital modeling
• Sustainable construction consulting
• Building technical studies

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting and Technical Studies: B27 generates revenue through professional services engagements providing multi-specialist engineering consulting across all construction sectors. Services include AMO, TCE engineering, BIM/CIM/TIM modeling, sustainable development studies, and project management. Revenue is project-based and typically structured as consulting fee engagements with property developers, public entities, and private investors.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

B27 is a multi-specialist French engineering bureau that delivers integrated technical studies and consulting across more than 15 construction-related disciplines (structural, thermal, fluids/HVAC, electrical, VRD, landscape, safety/security, BIM/CIM/TIM modeling, sustainability, and project-owner assistance) for property developers, architects, industrial operators, educational institutions, and public authorities. The firm sells project-based engineering consulting engagements coordinated through a single interlocutor, supported by a national network of 9 regional agencies and ISO 9001/14001-certified quality and environmental management systems.

Product overview

B27 is a multi-specialist engineering bureau offering a comprehensive portfolio of 15+ interconnected engineering services for the construction industry. The core offerings include AMO (Assistance à Maîtrise d'Ouvrage) for project owner support, Ingénierie TCE (all technical building engineering) as the umbrella service, complemented by specialized disciplines including Fluides (HVAC/fluids), Structure (structural engineering), Thermique (thermal/building envelope), Pilotage d'Opération/MOEX (project management), Économie de la Construction (cost estimation), Développement Durable (sustainability), VRD (infrastructure), Paysage (landscaping), Sûreté Sécurité (safety/security), BIM/CIM/TIM (digital modeling), and SmartBuilding (intelligent building solutions). The company operates as a unified engineering platform where these services are combined transdisciplinarily to serve investors, users, and architects across all construction sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• AMO (Assistance à Maîtrise d'Ouvrage)

Quantifiable outcome

• 18M€ CA 2023 revenue with 5,247 projects completed
• +7 more outcomes

Named customers14 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Ten partnerships are on record, tiered major, core and standard.

• ALTAIS and INGEAmajorStrategic or Co-development Partner · 1 January 2024In 2024, B27 announced the integration of two new structures, ALTAIS and INGEA, as part of its expansion. This integration strengthens B27's multi-specialist engineering capabilities and national coverage.
• A26 ArchitecturescoreStrategic or Co-development PartnerA26 Architectures is a key strategic partner of B27, working together on multiple construction projects including SKEMA Business School campus in Suresnes, Campus des Groues in Nanterre, smart building and urban planning projects, and soft mobility initiatives. The partnership combines architectural design with multi-disciplinary engineering to deliver integrated project solutions.
• PanhardmajorStrategic or Co-development PartnerPanhard (Groupe Panhard) is a major property developer partner of B27, collaborating on the Campus des Groues project in Nanterre - one of Île-de-France's most ambitious urban renewal programs. Panhard and Bricqueville developed the residential and educational components of this major project.
• BricquevillemajorStrategic or Co-development PartnerBricqueville partnered with Panhard and B27 on the Campus des Groues project in Nanterre, developing residential and educational components of the ambitious urban renewal program.
• Eiffage Construction et ImmobiliermajorStrategic or Co-development PartnerEiffage is a key partner for B27, having entrusted the technical studies (structure, fluids, eco-TCE, VRD) for the Cité Internationale de la Gastronomie et du Vin in Dijon - an eco-district of 600+ housing units. Eiffage subsequently awarded additional projects to B27 including their future regional headquarters within the CIGV complex.
• Chambaud Architectes / Studio MustardstandardStrategic or Co-development PartnerB27 collaborated with Chambaud Architectes and Studio Mustard as architects on the Cité Internationale de la Gastronomie et du Vin project in Dijon, providing technical studies including structure, fluids, eco-TCE, VRD, access control, and SSI coordination.
• Atelier Cattani ArchitectesstandardStrategic or Co-development PartnerAtelier Cattani Architectes partnered with B27 on the UGC cinema expansion project at Palais des Congrès de la Porte Maillot (12 new screens, 1,144 seats). B27 provided 13 technical engineering lots in support of the architect's design.
• In'Li (Groupe Action Logement)majorStrategic or Co-development PartnerIn'Li, a subsidiary of Groupe Action Logement dedicated to intermediate housing, selected B27 for the heavy rehabilitation of 341 housing units in Reuilly, Paris. Project involves collective hot water, plumbing, electrical modernization, and complete bathroom renovations.
• Dijon Métropole Smart EnergymajorStrategic or Co-development PartnerB27 supports Dijon Métropole Smart Energy on hydrogen infrastructure missions, providing electrical engineering, strong/weak current SSI, and VRD missions for a hydrogen refueling station serving buses and waste collection trucks of the agglomeration.
• Dijon MétropolemajorStrategic or Co-development PartnerDijon Métropole commissioned B27 for the Station H2 Nord hydrogen refueling station project - an installation open to the public (IOP) with 440kg/day production capacity (1MW power).

Scale indicators9 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Bureau Veritas: Global testing, inspection, and certification (TICx) firm with French construction-related services. Overlaps with B27's ICPE and construction compliance work but with fundamentally different TICx business model and global scale.
• WSP in France: Global professional services firm with French engineering operations covering property, transport, and environment. Comparable transdisciplinary engineering offerings but at global scale, with stronger international mobility and mega-project capacity.
• Tractebel (ENGIE): Global engineering consultancy owned by ENGIE, covering energy, water, infrastructure, and buildings. Overlaps with B27's hydrogen and energy transition engineering capabilities but operates at materially larger scale with broader geographic and sector coverage.
• Arcadis: Global design, engineering, and consulting firm with significant French operations. Overlaps with B27's sustainable construction and BIM-led engineering capabilities but at much greater scale and international breadth.

Emerging players

• AIA Life Designers: French architect-engineer combining architectural design with engineering specialties for healthcare, education, and mixed-use projects. Comparable to B27's architect-supportive transdisciplinary model but with stronger architectural integration and sector-specific focus.

Direct peers

• Ingérop: Independent French engineering firm covering construction, infrastructure, energy, and environment disciplines. Closely comparable to B27's transdisciplinary BET model serving French property developers and public sector clients, at similar mid-tier scale.
• Egis: French engineering and consulting group providing services across construction, infrastructure, energy, and environment. Directly comparable in multi-specialist engineering delivery for French property developers, public authorities, and architects, with broader geographic reach.
• setec: French independent engineering group providing construction, infrastructure, and project management services. Comparable multi-specialist BET model and French market focus, with similar transdisciplinary service range covering structure, MEP, and project management.
• Artelia: French-headquartered multi-specialist engineering group offering construction, energy, environment, and infrastructure engineering services. Closely comparable to B27 in transdisciplinary engineering model and customer segments (developers, architects, public clients), but materially larger scale and international footprint.
• Assystem: French engineering services firm specializing in energy, infrastructure, and industrial projects. Comparable in delivering complex multi-disciplinary engineering mandates, though with stronger tilt toward industrial and nuclear clients than B27's developer/architect focus.

Market position

Strengths5 records

Weaknesses5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/b27fr
• YouTubevimeo.com/470890224
• LinkedInlinkedin.com/company/b27
• Facebookfacebook.com/B27.fr

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries2 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 B27