SLVI INGENIERIE

What SLVI INGENIERIE does

SLVI Ingénierie (Sud Loire Vendée Ingénierie) is a privately held French building fluids engineering consultancy founded in 1998 and headquartered in Haute-Goulaine, south of Nantes, with two additional offices in Vendée (Saint-Philbert de Bouaine and Mouilleron Le Captif). The firm operates as a Maîtrise d'Œuvre (MOE) engineering bureau, providing end-to-end project delivery — from feasibility diagnostics through Avant-Projet, PRO/DCE design, VISA/DET construction supervision, to AOR final acceptance — for plumbing, HVAC, thermal, electrical, and fire safety (SSI) systems.

Its service portfolio spans four technical domains (Plomberie/Génie climatique, Thermique du bâtiment, Électricité courants forts et faibles, and Coordination SSI) supported by specialized offerings including BIM (Revit) 3D modeling, regulatory thermal studies under RE2020/RT2012, energy audits for Décret Tertiaire compliance, and SSI coordination for ERP/ERT/ICPE establishments. Tooling is conventional engineering software: Revit (BIM), Perrenoud and Izuba Energies (thermal simulation), Caneco BT (electrical calculation), and Dialux (lighting). SLVI holds OPQIBI and RGE certifications, which are mandatory qualifications for bidding on French public tenders and for clients to access government energy renovation subsidies.

Revenue is generated exclusively through project-based professional services fees (engineering studies and MOE contracts), with no disclosed recurring or subscription pricing. The firm employs approximately 15 collaborators distributed across the plumbing-climate-thermal, electrical, and SSI poles, led by Daniel Sauvaget (Gérant). Customers span local government, departmental/regional authorities, social and private housing developers, healthcare/EHPAD operators, industrial manufacturers, and IT/tertiary corporates — primarily across Pays de la Loire, Bretagne, and broader France, sourced via direct engagement, public tenders, and long-term professional relationships built on 25+ years of regional references.

Name

SLVI INGENIERIE

Legal name

SLVI

Website

https://slvi.fr

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

1–10 employees

Short description

SLVI Ingénierie is a French building fluids engineering consultancy (MOE) based near Nantes, providing plumbing, HVAC, electrical, thermal, and fire safety engineering services across Pays de la Loire and broader France for public and private clients.

Ownership category

akta.pro rank

Product category

Building Engineering Services

NAICS

Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Hard Services (MEP/HVAC, Electrical, Plumbing) (BPABAAAA)

akta.pro secondary industry

Plumbing & Utility Systems (Potable/Non-Potable Water, Sanitary, Storm, Sewage Lift) (EUAEAFAF)

Keywords

• Building fluids engineering
• HVAC engineering services
• Fire safety coordination
• Energy audit consulting
• Thermal studies consulting

Headquarters

HQ city

Haute-Goulaine

HQ country

France

HQ region

Europe

Offices3 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 Studies & Maîtrise d'Œuvre (MOE): SLVI provides full-cycle engineering studies and MOE services for building fluids (plumbing, HVAC, electrical, fire safety). Revenue is generated through project-based consulting fees for studies, design, and construction supervision across various building types.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

SLVI provides Maîtrise d'Œuvre (MOE) engineering services for building fluids, covering the full project lifecycle from feasibility analysis and design through construction supervision to final acceptance. The firm operates across four integrated technical domains — plumbing/HVAC, building thermal studies, electrical systems (strong and weak current), and fire safety (SSI) coordination — supported by BIM-based 3D design, regulatory thermal compliance studies (RE2020/RT2012), and energy audits. Services are sold on a project-by-project basis to building owners, architects, and public authorities in France.

Product overview

SLVI Ingénierie is a building fluids engineering consultancy offering integrated services centered around a Master Contractor (MOE) approach. The core offering encompasses four technical domains: Plomberie/Génie Climatique (plumbing and climate engineering), Thermique du Bâtiment (building thermal services), Électricité Courants Forts et Faibles (electrical systems), and Système de Sécurité Incendie (fire safety coordination). These are supported by specialized services including BIM 3D modeling technology, regulatory thermal studies (RE2020/RT Rénovation), energy audits, and SSI coordination. The company serves diverse sectors including education, healthcare, sports facilities, commercial offices, industry, and residential properties.

Differentiator

Problem solved

Functional benefit

Products and services

• Maîtrise d'Œuvre (MOE) Engineering Services Full-lifecycle project management and engineering oversight covering all stages of building fluids and electrical projects from initial feasibility analysis through design, construction supervision, and final acceptance. Sold to building owners, public authorities, and developers as project-based consulting contracts.
• Energy Audit (Audit Énergétique) Energy performance assessment for buildings that establishes the current state of energy efficiency, identifies improvement areas, and prioritizes work to meet Tertiary Decree (Décret Tertiaire) compliance requirements. Sold to building owners and operators seeking energy renovation roadmaps.
• Regulatory Thermal Studies (Études Thermiques RE2020 / RT2012) Thermal regulatory studies ensuring building compliance with French energy consumption standards for new builds and renovations, including RE2020 environmental assessment, RT Rénovation studies, and Dynamic Thermal Simulation (STD). Sold to project owners and architects requiring regulatory thermal compliance certificates.
• Fire Safety System Coordination (Coordination SSI) Fire Safety System (Système de Sécurité Incendie / SSI) coordination for new and existing buildings classified as ERP, ERT, and ICPE, including needs assessment, specification development, and technical acceptance. Sold to building owners and contractors requiring fire safety compliance.

Quantifiable outcome

• Energy savings of 50% achieved in thermal rehabilitation projects (e.g., Residence La Razée achieved Class C energy rating)
• +1 more outcomes

Named customers15 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• OPQIBIminorOthersSLVI holds OPQIBI (Organisme de Qualification de l'Ingénierie) qualification, a recognized French certification for engineering bureaus demonstrating competence and quality standards for public and private project engagements.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Egis: Large French engineering and project management group active in buildings, transport, energy and environment. Overlaps with SLVI on building engineering services and competes for large public-sector framework agreements.
• Setec: French independent engineering group covering infrastructure, buildings, energy and environment. Overlaps with SLVI on MEP/fluids engineering and competes for major public-sector building projects.
• Ingerop: French independent engineering group providing building, infrastructure, energy and environmental engineering services. Competes with SLVI on multidisciplinary building projects (fluids, electricity, SSI) at a national scale.
• Ginger Group: French engineering group active in buildings, environment, geotechnical and infrastructure. Competes with SLVI on building engineering mandates, particularly for public clients in western France.
• Artelia: Major French engineering group offering multidisciplinary building, infrastructure and energy services including MEP, thermal and fire-safety engineering. Significantly larger than SLVI but overlaps directly on building fluids MOE for public and private clients across France.

Direct peers

• BTP Consultants: French building technical consultancy providing construction economics, project management and engineering services. Overlaps with SLVI on building MOE and public-sector framework contracts.
• Alterea: French building engineering consultancy specialized in energy renovation, thermal studies and building fluids. Closely comparable to SLVI on RE2020/energy audit/renovation scope and on the public/social-housing client base.
• EODD Ingénieurs Conseils: French independent engineering consultancy covering building fluids, energy and environment. Comparable to SLVI on integrated MOE for tertiary, healthcare and residential projects.
• OTE Ingénierie: Independent French BET fluides providing MEP, thermal and electrical engineering for buildings. Closely comparable to SLVI on service offering, project scale and public-sector client mix.

Others

• Bureau Veritas: Global testing, inspection and certification group. Adjacent rather than directly competitive with SLVI but relevant given that OPQIBI/RGE-style certification-driven GTM is core to SLVI's market access.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/slvi-ingenierie

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 SLVI INGENIERIE