Vivien

What Vivien does

VIVIEN (legal name VIVIEN, also operating as Bureau d'études VIVIEN) is a privately held, family-owned French engineering consultancy (bureau d'études) founded circa 1982 in Mérignac, near Bordeaux. The firm employs 34 specialized engineers and technicians organized across five integrated expertise poles: Fluides CVCP (HVAC and plumbing design), Electricité (electrical systems), Energie (energy auditing and performance monitoring), Environnement (environmental certification and low-carbon approaches), and BIM (Building Information Modeling coordination). It delivers design, optimization, and project management services for new construction and renovation projects, with active certifications expertise across HQE, BREEAM, BBCA, NF Habitat, and the French RE2020 regulatory framework.

The firm operates two offices — Mérignac (Bordeaux HQ, opened with the firm) and Paris (3 rue Hautefeuille, established 2020) — and serves four horizontal segments: Residential (logements), Tertiary (offices and institutional buildings), Viti-vini (winery facilities including chais, caves, and châteaux), and Industrial buildings with advanced energy systems. Notable named engagements include residential developments for Crédit Agricole Immobilier (€9.5M works envelope) and Legendre Immobilier (€6M works envelope), a municipal residence for Ville de Mios (€10.7M), a photovoltaic installation at Château Lafon Rochet (€12M works envelope), a day-hospital at Centre Hospitalier de Cadillac (€950K), and a New European Bauhaus prize-winning leisure center for Commune de L'Étang-la-Ville.

VIVIEN's go-to-market is sales-led B2B, targeting maîtres d'ouvrage (property developers, municipalities, institutions), architects, and general contractors, with project-based, quote-driven pricing (no public pricing) and multi-year contract cadences. Distribution is direct, supported by an internal sales/Business development hire, content marketing through a topic-focused blog and LinkedIn presence, and active participation in industry events (SIBCA, Forum Bois Construction, BIM DAY GVA, EnerJ-meeting) and professional workshops (matinales). Strategic technology partnerships include a core relationship with Time To Beem for early-phase carbon estimation. Leadership is stable and family-anchored: Thomas Garatain serves as co-gérant (co-managing partner), with Camille Vivien representing the founding family and Mathieu Lavesque and Rémi Favre-Bonvin acting as regional directors and associates.

Name

Vivien

Legal name

VIVIEN

Website

https://be-vivien.fr

Company type

Private

Founded year

1982

Operating status

Operating

Headcount range

11–50 employees

Short description

VIVIEN is a French family-owned engineering consultancy founded circa 1982, employing 34 specialists across five expertise poles (HVAC, electrical, energy, environment, BIM) to deliver building design, renovation, and environmental certification services to residential, tertiary, viti-vini, and industrial clients across France.

Ownership category

akta.pro rank

Product category

Building Engineering Services

NAICS

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

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Systems Engineering & Technical Program Management (BPAHAIAI)

akta.pro secondary industry

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

Keywords

• Building engineering consulting
• HVAC system design
• BIM coordination services
• Thermal energy auditing
• Environmental certification

Headquarters

HQ city

Mérignac

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Studies Services: Professional services for building fluid, thermal, and environmental engineering including design, consultancy, and project management for construction and renovation projects

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Vivien is a French building engineering consultancy (bureau d'études techniques) that designs, simulates and coordinates the technical building systems for new-build and renovation projects. Its core offerings span five integrated disciplines — HVAC/plumbing (Fluides CVCP), high- and low-current electrical (Electricité CFO/CFA), energy performance, environmental certification, and BIM coordination — delivered to property developers, architects, public-sector clients and specialized industries (wine, healthcare, industry, retail). The firm operates as a project-based technical partner from offices in Mérignac (Bordeaux) and Paris, with 40+ years of track record across roughly 30 French departments.

Product overview

VIVIEN is a French engineering consultancy (bureau d'études) offering integrated services across five core areas: Fluides CVCP (HVAC and plumbing), Electricité (electrical systems), Energie (energy auditing), Environnement (environmental certifications), and BIM (building information modeling). With offices in Bordeaux and Paris, the firm serves residential, tertiary, viticultural, and industrial building projects throughout France. The company operates across multiple sectors including social housing, hotels, healthcare facilities, educational institutions, and wine estates, providing both assistance to project management and full design engineering services. Their approach emphasizes energy performance, environmental certifications (HQE, BREEAM, BBCA, NF Habitat), and sustainable building practices aligned with French regulations such as RE2020 and RT2012.

Differentiator

Problem solved

Functional benefit

Products and services

• Fluides CVCP (HVAC & Plumbing) engineering End-to-end CVCP (Chauffage, Ventilation, Climatisation, Plomberie) engineering studies — design, sizing, supervision and commissioning — delivered to property developers, architects, public sector clients and wine/healthcare specialists from the Bordeaux and Paris agencies.
• Electricité CFO/CFA (High- and low-current electrical engineering) Design of high-current (CFO) and low-current (CFA) electrical installations for buildings, covering power distribution, lighting, security and ICT systems, delivered to the same developer, architect and public-sector client base.
• Energie (Energy performance studies) Energy performance engineering studies including thermal simulation, regulatory energy audits (RT/Cep), and energy optimization for new-build and renovation projects across all served sectors.
• Environnement (Environmental consulting and certification) Environmental studies, life-cycle and carbon (Bilan Carbone / equivalent) assessments, and certification support across NF HQE, E+C-, BBCA, BREEAM, LEED and ISO 14001 frameworks, for developers, public clients and industrial accounts.
• BIM (Building Information Modeling coordination) BIM coordination services, including IFC/Revit modeling management, BIM Manager mandates and digital coordination across the five technical disciplines, for developers, architects and contractors running multi-party projects.

Named customers6 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Time To BeemcoreTechnology or IntegrationVIVIEN serves as partner and technical ambassador for Time To Beem's carbon estimation module, integrating it into early project phases for rapid carbon impact assessment
• BLAXminorImplementation/ SI/ Consulting PartnerBLAX team, particularly Jim Agbo, supported VIVIEN in installing EV charging stations powered by their own photovoltaic panels
• Elles du DésertminorGTM or Marketing PartnerVIVIEN sponsors the 2026 Trophée Roses des Sables desert rally, supporting crew 209 Elles du Désert

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• ARTELIA: Large French engineering group with a substantial building division covering HVAC/electrical/environmental engineering for residential, tertiary, and industrial projects. Direct overlap with VIVIEN's five-pole offering but at national/international scale.
• Egis: Major French engineering and consultancy group with extensive building services and energy/environmental practices. Competes with VIVIEN on French construction projects, particularly tertiary and infrastructure-adjacent mandates.
• INGEROP: Independent French engineering firm with strong building, infrastructure, and environmental practices. Provides comparable bureau d'études services at greater national scale than VIVIEN.

Direct peers

• Setec: French engineering consultancy with building, energy, and environmental practices delivering integrated design services across multiple disciplines. Highly comparable multi-pole model to VIVIEN with national coverage.
• Elithis: French engineering firm with strong focus on energy performance and sustainable building design — closely aligned with VIVIEN's HQE/BREEAM/BBCA/RE2020 positioning and carbon-oriented service offering.
• Altereo: French engineering group with environmental, water, and sustainable-construction practices that overlap with VIVIEN's Environnement pole and life-cycle assessment (ACV) capabilities.

Emerging players

• Nobatek/INEF4: French R&D and engineering center dedicated to sustainable buildings; competes in the same low-carbon/RE2020 consulting space with a stronger innovation/research profile but similar end-customers.
• Alter&: Smaller French sustainable-building engineering consultancy focused on environmental and energy performance for construction, with overlap to VIVIEN's Environnement and Energie poles.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/be-vivien
• Xx.com/be_vivien

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Vivien