Opus Ingenierie

What Opus Ingenierie does

Opus Ingénierie is a French building engineering consultancy founded in April 2021 by Corinne Nouveau and headquartered in Fleurville, Saône-et-Loire (Burgundy region). The firm delivers three integrated service lines for building renovation: BET Réemploi (mandatory PEMD diagnostics under the French Loi AGEC framework, covering waste assessment and material reuse strategy), BET Fluides (technical design of HVAC, plumbing, and electrical systems, including DPGF/DCE documentation and construction site supervision), and Rénovation Énergétique (OPQIBI RGE-certified energy audits and thermal renovation studies for residential and tertiary buildings). Opus holds OPQIBI RGE and CSTB Paris CDIAG5-Diagnostic PEMD certifications, which qualify its deliverables for subsidy applications and regulatory compliance.

The firm serves two customer segments — professional maîtres d'ouvrage (public and private building owners, contractors, and property managers) and individual homeowners (particuliers) — primarily within the Auvergne-Rhône-Alpes region, using direct engagement with no intermediaries, resellers, or marketplace channels. Its go-to-market is sales-led, relying on the founder's 30 years of building engineering experience, direct phone and email contact, and a structured website as the main marketing surface.

The business model is straightforward professional services: project-based consulting fees for diagnostic, design, and supervision engagements, with no publicly disclosed pricing. There is no external investment, no parent company, no subsidiaries, no disclosed headcount beyond the founder, and no partnerships, indicating a solo-practitioner or very small team structure with correspondingly modest revenue scale.

Name

Opus Ingenierie

Legal name

OPUS INGÉNIERIE

Website

https://ingenierie-opus.fr

Company type

Private

Founded year

2021

Operating status

Operating

Short description

Opus Ingénierie is a French building engineering consultancy founded in 2021 that delivers material reuse diagnostics (PEMD), HVAC and fluids design, and energy audits for renovation projects, serving professional building owners and individual homeowners primarily in the Auvergne-Rhône-Alpes region.

Ownership category

akta.pro rank

Product category

Building Engineering Consulting

NAICS

Engineering Services (541330), Architectural Services (541310), Architectural, Engineering, and Related Services (5413)

SIC

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

akta.pro primary industry

Architectural Reconfiguration & Structural Alterations (HSAPAEAB)

akta.pro secondary industry

Whole-Home Interior Renovation (Non-Structural) (HSAPAEAC)

Keywords

• Building engineering consulting
• PEMD diagnostics services
• HVAC engineering design
• Energy audit consulting
• Material reuse advisory

Headquarters

HQ city

Fleurville

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional services revenue generated through consulting engagements in building renovation. Services include PEMD diagnostics, energy audits, HVAC engineering design, and construction site monitoring for both public and private clients.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels1 record

Core offering

Opus Ingénierie is a building engineering consultancy that designs and supervises ecological renovation projects. Its services cover material reuse diagnostics (PEMD diagnostics mandated by French AGEC law), HVAC/plumbing/electrical engineering design studies, and energy audits with thermal renovation studies for both individual houses and collective or tertiary buildings.

Product overview

Opus Ingénierie is a single-product engineering consulting firm offering three integrated service lines centered on ecological building renovation. The core offering consists of BET RÉEMPLOI (material reuse diagnostics and circular economy consulting, including mandatory PEMD diagnostics under French AGEC law), BET FLUIDES (technical engineering studies for HVAC/plumbing/electrical systems including design, bid analysis, and construction supervision), and RÉNOVATION ÉNERGÉTIQUE (energy audits and thermal renovation consulting for both residential and commercial clients). All services are delivered by founder Corinne Nouveau and are connected through a unified commitment to waste reduction, material reuse, and energy efficiency across renovation projects.

Differentiator

Problem solved

Functional benefit

Products and services

• BET RÉEMPLOI (Material Reuse Engineering) Diagnostic and consulting service for material reuse in construction, including mandatory PEMD (Produits, Matériaux, Déchets) diagnostics required by French AGEC law, and assistance to project owners in implementing material reuse strategies for public and private building renovation and demolition projects.
• BET FLUIDES (HVAC and Technical Lot Engineering) Technical engineering studies for HVAC (CVC), plumbing, and electrical systems covering design studies, bid analysis (analyse d'offres), and construction site monitoring (suivi de chantier) for public and private maîtres d'ouvrage, with proper sizing and compliance documentation (DPGF, DCE).
• RÉNOVATION ÉNERGÉTIQUE (Energy Renovation Consulting) Energy renovation consulting comprising OPQIBI RGE-certified energy audits for individual houses, collective housing, and tertiary buildings, thermal renovation studies (études thermiques rénovation), and construction monitoring services for both individual homeowners and professional property owners.

Quantifiable outcome

• Up to 50% savings on construction costs through material reuse
• +1 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators4 records

Recent moves4 records

Expansion highlights3 records

Direct peers

• ALTEREA: ALTEREA is a French independent engineering firm focused on energy renovation, building energy performance, and sustainable construction consulting — a direct peer to Opus Ingénierie's energy audit and ecological renovation practice.
• Enertech: Enertech is a French energy and environmental engineering consultancy that performs energy audits, thermal studies, and renewable energy assessments — overlapping directly with Opus's RÉNOVATION ÉNERGÉTIQUE offering.

Broad incumbents

• Burgeap: Burgeap (an ENGIE subsidiary) is a French environmental and building engineering consultancy providing energy audits, environmental diagnostics, and circular-economy advisory services — comparable to Opus's energy and material reuse practice but with national reach.
• Ingérop: Ingérop is a large French independent engineering firm active in building energy performance, HVAC engineering, and infrastructure — a broad incumbent competing for the same types of BET mandates as Opus.
• Egis: Egis is a major French engineering group with extensive building, energy, and environmental engineering capabilities, routinely competing for public and private renovation project mandates across France.
• TPF Ingénierie: TPF Ingénierie is a French engineering firm with a building and energy performance practice covering HVAC design, thermal renovation, and energy audits — comparable to Opus's BET FLUIDES and energy renovation services.
• ARTELIA: ARTELIA is one of France's largest independent engineering groups, with a broad building, energy, and environment practice that competes for the same renovation and BET Fluides mandates as Opus at significantly greater scale.
• Setec: Setec is a major French multidisciplinary engineering group with a building and energy practice that performs HVAC design, thermal studies, and renovation engineering, overlapping with Opus's full service line at much larger scale.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance2 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 Opus Ingenierie