SIXIEME SENS INGENIERIE

What SIXIEME SENS INGENIERIE does

Sixième Sens Ingénierie is a privately held French building engineering consultancy headquartered in Montbonnot-Saint-Martin, Isère, in the Auvergne-Rhône-Alpes region. Founded by Rémy Rossillon, the firm operates as a maître d'œuvr, providing full or partial project management of building technical equipment across electrical (strong and weak currents, lighting, security, IT, building automation), climate engineering (HVAC, ventilation, odorization, process), and sanitary/fluid transport (water treatment, compressed air, wastewater). Services span the entire project lifecycle — preliminary design (APS/APD), tendering, construction supervision, commissioning, and maintenance specification — supplemented by specialized audits and ventilation projects for parking, kitchens, and performance venues.

The firm's commercial model is professional services engagement, billed through engineering contracts with building owners, property managers, and municipal authorities. It deliberately avoids equity, institutional investment, or partnership with equipment manufacturers, installers, or operators, positioning itself as a neutral advisor to clients. To deliver full scope without owning adjacent capabilities, it relies on a partnered ecosystem of electrical and structural engineering firms, architects, interior designers, decorators, and control bureaus. Its customer base is regionally concentrated and project-based, with reference projects spanning municipal sports facilities, hospitality, retail, aviation ground operations, residential developments, and historic sites. The firm is small, founder-led, and operates with a low digital footprint — a basic professional website with a client portal and a downloadable PDF brochure are the only documented marketing channels.

Name

SIXIEME SENS INGENIERIE

Legal name

SIXIEME SENS INGENIERIE

Website

https://sixiemesens-ing.com

Company type

Private

Operating status

Operating

Short description

Sixième Sens Ingénierie is a privately held French building engineering consultancy in Montbonnot-Saint-Martin that provides maître d'œuvre services for HVAC, electrical, plumbing, and building automation systems to building owners, operators, and municipalities in the Rhône-Alpes region.

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

HVAC & Refrigeration Contracting (IMAFALAB)

akta.pro secondary industry

Building Automation & Controls (BAS/BMS) Contracting (IMAFALAE)

Keywords

• Building engineering consulting
• HVAC engineering services
• Electrical engineering design
• Plumbing fluid transport
• Building technical audits

Headquarters

HQ city

Montbonnot-saint-martin

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Engineering Consulting Services: Full or partial master contractor (maîtrise d'œuvre) services for building technical equipment projects, from pre-project studies (APS, APD) through construction supervision, acceptance, and maintenance specification. Services include specialized audits, feasibility studies, and specialized ventilation projects.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Sixième Sens Ingénierie is a French engineering consulting firm providing maître d'œuvre (master contractor) services for building technical equipment, including HVAC/climate engineering, electrical systems (strong and weak currents, building automation/GTB), and sanitary/fluid transport. Services span pre-project studies (APS, APD), consultation documents, works contract assistance, construction supervision, commissioning assistance, user training, and maintenance specification, with additional specialized missions in district heating, audits, and specialized ventilation.

Product overview

Sixième Sens Ingénierie is an engineering consulting firm, not a software product company. The company offers professional engineering services for building systems including: (1) Electrical engineering for strong and weak currents covering lighting, power distribution, access control, fire/intrusion alarms, IT/telephone networks, and building automation (GTB); (2) Climate engineering (HVAC) including heating, air conditioning, ventilation, odorization, and process systems; (3) Sanitary and fluid transport services including well water systems, industrial water treatment, domestic hot/cold water, fire suppression (RIA), compressed air, and wastewater management. The company also provides full project lifecycle services from preliminary design through construction supervision, commissioning assistance, and maintenance specification writing. No branded software products or modules were identified in the source material.

Differentiator

Problem solved

Functional benefit

Products and services

• HVAC/Climate Engineering Services (Génie Climatique)

Named customers8 records

Segments2 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Five partnerships are on record, tiered minor.

• Bureaux d'Etudes (Electrical and Structural Engineering Firms)minorStrategic or Co-development PartnerPartnership with specialized engineering firms for electrical and structural engineering aspects of building projects. These partnerships enable comprehensive project delivery while Sixième Sens maintains its primary focus on HVAC, plumbing, and building technical systems.
• Agenceurs (Interior Designers)minorStrategic or Co-development PartnerCollaboration with interior design professionals to ensure building technical systems integrate aesthetically with interior design requirements.
• Bureaux de Contrôle (Inspection/Control Bureaus)minorStrategic or Co-development PartnerWorking relationship with control bureaus for regulatory compliance verification and quality assurance on building projects.
• Décorateurs (Decorators)minorStrategic or Co-development PartnerCollaboration with decorators to achieve aesthetic integration of technical building systems, supporting the company's philosophy of artistic, customized installations.
• Architectes (Architects)minorStrategic or Co-development PartnerPartnership with architects for building projects requiring comprehensive engineering integration with architectural design and specifications.

Scale indicators1 record

Recent moves3 records

Expansion highlights3 records

Broad incumbents

• Egis: Major French engineering group offering HVAC, electrical, structural, and building systems design across infrastructure, buildings, and energy. Significantly larger and broader portfolio than Sixième Sens but directly comparable in maître d'œuvre/building engineering services.
• WSP France: Global engineering professional services firm with a substantial French building services practice covering HVAC, electrical, and plumbing. Comparable technical engineering offering but embedded within a global consultancy with significantly more resources.
• Setec Bâtiment: Setec's building division delivers HVAC, electrical, plumbing, and structural engineering for French real estate and infrastructure projects. Highly comparable maître d'œuvre profile but at group scale with multiple specialized subsidiaries.
• Assystem: French engineering and project management firm with significant energy and building infrastructure practices. Overlaps with Sixième Sens on technical building equipment consulting, especially for industrial and energy-sector clients.
• Stantec France: International design and engineering consultancy with French building services teams delivering HVAC, electrical, and sustainability consulting. Direct overlap in maître d'œuvre / building technical equipment engineering but at multinational scale.
• Artelia: Large French independent engineering consultancy with strong building MEP/HVAC, energy, and construction supervision practices. Comparable core activity in building technical equipment engineering, though at much larger scale and with broader sector coverage.
• Tractebel (ENGIE): International engineering consultancy under ENGIE providing HVAC, energy, and building systems design. Comparable engineering services for technical building equipment but at multinational scale with global delivery.

Others

• Bureau Veritas Construction: French construction control bureau working in partnership with maître d'œuvre firms on regulatory verification and quality assurance. Adjacent rather than competing — Sixième Sens explicitly partners with bureaux de contrôle — but relevant benchmark for technical building services in France.

Emerging players

• ALTEREA: French energy and environmental engineering consultancy focused on building energy performance, HVAC retrofit, and fluid systems. More specialized in energy efficiency audits and renewable heat, but directly comparable maître d'œuvre activity for building HVAC/climate works.

Regional players

• Burgeap (Ginkgo): French environmental and energy engineering consultancy with building energy/HVAC expertise. Comparable technical engineering service profile for building systems, with similar French SME-style operating model though broader environmental scope.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

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 SIXIEME SENS INGENIERIE