INGELUX

What INGELUX does

INGELUX (legal name Ingélux S.A.R.L.) is a French lighting engineering consultancy founded in 2001 as a spin-off of the CNRS DGCB laboratory at the National School of Public Works of the State (ENTPE) in Lyon. The firm designs daylight and artificial lighting for buildings and urban environments, serving architects, engineering firms, municipalities, manufacturers, and public research laboratories. Its service portfolio is organized around four mission types: light design (calculations, simulations, prototypes), diagnostics and expertise (on-site measurement, glare and energy audits, certification support for BREEAM/HQE/LEED/WELL), measurements (photometric characterization up to 1.2m luminaires, IES files, CRI, spectral distribution), and research and innovation (software development, blind control systems, LED standardization).

The firm's proprietary technology stack includes the MultiPoro multilayer system modeling tool (developed for Matelys), the Diasol solar diagnostic tool for managing urban and shading masks, the Everlite Daylighting Software for viewing simulated light environments, and the Esperopolis tool for measuring and prioritizing light pollution contributions. INGELUX pairs these tools with calibrated on-site measurement instruments (luxmeters, luminance meters, chromameters, spectrophotometers). The company has participated in more than 15 collaborative research programs (ANR, ADEME, European, IEA, CIE) and has coordinated six of them, including leadership of the LED Standardization WorkPackage within the Horizon 2020 Delphi4LED project and convener role for CIE Technical Committee TC2-84.

INGELUX generates revenue through professional services delivered on a project basis, structured as a S.A.R.L. with 10 employees as of 2016. Pricing is not publicly disclosed and engagements are scoped per project. The firm operates across 10+ horizontal use-case segments, including museums and cultural institutions (Musée du Louvre Paris and Abu Dhabi, Van Gogh Museum Arles, Louis Vuitton Foundation, Picasso Museum, Petit Palais), urban landmarks (Eiffel Tower, Shanghai Expo 2010, City of Dunkerque), transportation infrastructure (Aéroports de Paris, RATP), automotive (Renault, Renault Trucks), corporate offices (Vinci, Groupama), retail (Unibail-Rodamco), leisure (Center Parcs), and healthcare. Marketing is driven by project reputation, research participation, and industry awards rather than traditional sales channels. The firm is founder-managed by Bernard Fieux (Gérant), Christophe Marty, and Laurent Escaffre (Directeurs Associés), and shows no evidence of external venture capital or private equity investment.

Name

INGELUX

Legal name

Ingélux S.A.R.L.

Website

https://ingelux.com

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

1–10 employees

Short description

INGELUX is a French lighting engineering consultancy (S.A.R.L., founded 2001, ~10 employees) spun off from CNRS, designing daylight and artificial lighting for museums, transport, urban landmarks, offices, healthcare, and industry on a project basis.

Ownership category

akta.pro rank

Product category

Lighting Engineering Consultancy

NAICS

Architectural Services (541310)

SIC

Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Lighting Design Services (BPAHAKAJ)

Keywords

• Lighting design consultancy
• Daylighting engineering services
• Artificial light design
• Lighting diagnostics expertise
• Photometric measurement services

Headquarters

HQ city

Vaulx-en-Velin, Auvergne-Rhône-Alpes

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Lighting Engineering Consultancy Services: INGELUX generates revenue through professional services as a lighting design and engineering consultancy. The company provides services including daylighting design, artificial lighting design, diagnostics and expertise, measurements, and research and innovation consulting. The company is structured as a S.A.R.L. (French limited liability company) and works in partnership with clients, architects, and engineers on project-based engagements.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

INGELUX is a lighting design engineering consultancy that delivers scientific and architectural lighting design services for daylight and artificial light in buildings and urban environments. The firm operates through four mission pillars: Light Design (calculations, simulations, prototypes, demonstrators), Diagnostics & Expertise (on-site evaluation of light ambiances and certification support), Measurements (calibrated photometric characterization on-site and of luminaires), and Research & Innovation (collaborative R&D and software tool development). The consultancy also develops proprietary software tools for daylighting simulation and material optical modeling, and holds in-house photometric measurement capabilities.

Product overview

INGELUX is a lighting design engineering consultancy founded in 2001 as a spin-off from CNRS. The company offers a portfolio of core services including Light Design, Diagnostics & Expertise, Measurements, and Research & Innovation. These services are delivered through scientific and sensitive approaches to natural and artificial lighting for buildings, urban spaces, and specialized environments. INGELUX also develops proprietary software tools including Everlite Daylighting Software, MultiPoro (for Matelys), Diasol, and Esperopolis. The company focuses on high-quality luminous environments with minimal environmental impact, working across sectors including museums, hospitals, airports, offices, and urban landscapes.

Differentiator

Problem solved

Functional benefit

Products and services

• Light Design Services Lighting design services including calculations, simulations, prototypes and demonstrators. Covers daylight and artificial light design for buildings, urban spaces, and architectural illumination, delivered as project-based consulting engagements to enterprise clients and public-sector project owners alongside architects and engineers.
• Diagnostics and Expertise Services On-site evaluation of light ambiances through measurements and simulation tools to identify uncomfortable or critical situations including disability glare. Includes energy efficiency evaluation and justification of certification criteria for BREEAM/HQE/LEED/WELL.
• Measurements Services On-site characterization of daylight and artificial light using calibrated tools including luxmeters, luminance meters, chromameters, and spectrophotometers. Includes photometric characterization of luminaires up to 1.2m length (IES files, total stabilized flux, CRI, spectral distribution).
• Research and Innovation Services Participation in and coordination of collaborative research projects on daylight and artificial light, including software development, blind control systems, and LED standardization work coordinated through CIE Technical Committees (e.g., TC 2-84).
• MultiPoro Software Software for modeling and simulation of multilayer systems with single and double porosity. Developed for Matelys Company to simulate absorption coefficient, transmittance, reflectance, and surface impedance of materials, with applications in building acoustics and lighting research.
• Diasol Diagnostic Software Diagnostic software tool for solar loads of windows, with an interface specifically designed for managing masks from urban or shading elements. Supports lighting design and daylighting diagnostics engagements.
• Everlite Daylighting Software Daylighting software developed for viewing and simulating light environments using Everlite translucent polycarbonate building materials, created in collaboration with ENTPE-CNRS as part of the SUPERISO program.
• Online Lighting Calculation Tool Software designed and developed (2007-2008) to support the study of lighting via web or standalone environments, expanding INGELUX's digital tooling for daylight and artificial light studies.
• Esperopolis Light Pollution Tool Tool for measuring light distribution emitted toward the city sky, identifying, describing and prioritizing light pollution contributions of individual sources. Presented at the Pollutec Exhibition in December 2014.

Quantifiable outcome

• BREEAM Excellent certification achieved for multiple projects including Eiffel Mall (2012) and Aeroville shopping center
• +8 more outcomes

Named customers18 records

Segments10 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Nine partnerships are on record, tiered core and key.

• Delphi4LED Consortium (European Project)coreStrategic or Co-development Partner · 1 June 2016Horizon 2020 – Ecsel 2015 European project aiming to create a physical model of LED behavior including thermal, electronic, and optical domains. INGELUX is task leader of WorkPackage 4 (LED Standardization) and coordinates the creation of CIE Technical Committee TC2-84 'Recommendations on LED package test data reporting'. Duration: 36 months from June 2016.
• Cluster LumièrecoreStrategic or Co-development Partner · 1 January 2008French lighting cluster. INGELUX has been a member since its creation in 2008 and serves as secretary of the association since 2011.
• Everlite (SUPERISO Program)keyTechnology or Integration · 1 January 2006SUPERISO program (2006-2008) with Everlite and ENTPE-CNRS. Evaluation and demonstration of building solutions using translucent polycarbonate material with controllable transmission and high thermal insulation.
• Ecco-Build ConsortiumkeyStrategic or Co-development Partner · 1 January 2003European project with Fraunhofer Institute Freiburg, EPFL-Lausanne, Servidan-DK, and Hueppe-Germany. Development of blind control with visual comfort. INGELUX participated in this collaborative research project.
• CNRS-DGCB Laboratory (National School of Public Works, Lyon)coreStrategic or Co-development PartnerFormal partnership agreement with the CNRS-DGCB research laboratory of the National School of Public Works of the State (ENTPE) in Lyon. The aim is to mutualize resources and share technical and scientific information. INGELUX was originally created as a spin-off of this laboratory.
• INSERM Lyon (Institut National de la Santé et de la Recherche Médicale)keyTechnology or IntegrationCollaboration in R&D programs on light and health. INSERM brings medical research expertise on human health and light relationships.
• CEA-LETI GrenoblekeyTechnology or IntegrationCollaboration on LED and semiconductor innovation in the context of R&D programs.
• CSTB (Centre Scientifique et Technique du Bâtiment)keyTechnology or IntegrationCollaboration on qualification of new LED light sources in the context of R&D programs.
• Fraunhofer Institute (Freiburg, Germany)keyTechnology or IntegrationCollaboration on blind controls and visual comfort in buildings, specifically in the Ecco-Build European project (2003-2007).

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Zumtobel Group: Austrian lighting manufacturer and solution provider with design services and a strong architectural lighting portfolio. Overlaps with INGELUX in specifying/managing lighting for European cultural and commercial projects, but operates from the manufacturer side of the value chain.
• AECOM: Global infrastructure consultancy with architectural lighting capabilities within its Buildings + Places business. Addresses the same museums, transport, urban and workplace segments as INGELUX but at significantly greater scale and with broader cross-discipline offerings.
• WSP: Global professional services firm with a Lighting Design practice embedded in its Property & Buildings business. Comparable end-markets (transport, cultural, workplaces) but typically delivered through integrated multi-discipline teams rather than as a standalone specialist.
• Arup: Global engineering consultancy with a dedicated Lighting Design practice covering museums, transport, workplaces and urban realm. Offers lighting as part of a much broader multidisciplinary portfolio, creating both partnership opportunity and competitive pressure for specialist firms like INGELUX.
• Buro Happold: International engineering consultancy with a lighting design team delivering cultural, educational and infrastructure projects. Competes with INGELUX in lighting design but bundles it with wider MEP, structural and sustainability services.
• Cundall: Multi-disciplinary engineering consultancy with an established lighting design practice serving offices, healthcare, education and retail in Europe and APAC. Provides INGELUX's specialist scope within a broader engineering delivery model.

Regional players

• Les Éclairagistes Associés: Long-established French lighting design consultancy active in museums, heritage and urban projects. Direct geographic overlap with INGELUX in France, addressing similar cultural and architectural clients within the same domestic market.

Direct peers

• L'Observatoire International: NYC-based independent lighting design consultancy serving museums, retail, hospitality and cultural institutions globally. Highly comparable specialist positioning to INGELUX, focused on architectural and exhibition lighting for high-prestige cultural clients.
• Speirs + Major (Integral Group): Specialist architectural lighting design practice (now part of Integral Group) with global reach across cultural, transport, urban and workplace projects. Closely aligned service offering and project mix to INGELUX, with larger international footprint.
• Bartenbach Lichtlabor: Austria-based lighting research and design consultancy with a similar academic/research DNA, working on daylight and artificial light for buildings. INGELUX is listed as a research partner, and the firms address overlapping segments (museums, offices, urban) with comparable scientific methodology.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/ingelux

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 INGELUX