What Cumulux does

Cumulux is a French SAS founded in 2017 that designs, manufactures, and sells LED-based luminous ceilings (plafonds lumineux) and virtual windows (fenêtres virtuelles) intended to simulate natural daylight and outdoor views in interior spaces without windows or natural light access. Its core technology pairs high-resolution photographic prints of French landscapes and skies with backlit LED panels; two product families exist — a Classique line with fixed 6000°K cool white illumination, and an Evolution circadian line that dynamically varies color temperature between 2700°K and 6500°K using third-party Libu technology achieving a melanopic ratio of 0.29 to 1.07 to target melanopic photoreceptors. Formats span 60x60 cm and 60x120 cm panels up to 120x120 cm XL ceilings and suspended Cube and Disque luminaires, with compatibility for T15/T24 suspended ceilings and BA13 plasterboard.

The company sells through a sales-led motion combining direct enterprise sales, an inbound quote-request form, a by-appointment Paris showroom, and free demo-module lending. Installation is delivered through the customer's own electrician or certified installation partners such as Tertio Engineering. Pricing is quote-based and not publicly disclosed; revenue is generated primarily through one-time hardware sales (5-year warranty for professionals, 2-year for individuals) rather than recurring contracts.

Cumulux serves three verticals: Healthcare (hospitals, clinics, EHPAD nursing homes, imaging centers), Enterprise and Corporate Workspaces (ministries, transportation operators, corporate headquarters), and Individual Consumers. Named reference customers include APHP, SNCF, RATP, Louis Vuitton Fondation, Bouygues Construction, Generali, Carrefour, Sanofi, Renault, Siemens Healthineers, General Electric Healthcare, La Poste, multiple EHPAD operators (Korian, Domusvi), and various ministries. Geographic operations are concentrated in France, with referenced international installations in the Netherlands and Switzerland. The company is privately held with no disclosed external funding and founder-led, with Vincent Maréchal as founder and Wazim Tagauly as Director General.

Name

Cumulux

Legal name

Cumulux

Website

https://cumulux.fr

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

1–10 employees

Short description

Cumulux is a French company, founded in 2017, that designs and sells LED luminous ceilings and virtual windows combining HD photographic imagery with circadian lighting for healthcare facilities, corporate workspaces, and individual consumers in windowless interior spaces.

Ownership category

akta.pro rank

Product category

Architectural LED Lighting

NAICS

Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing (335132), Residential Electric Lighting Fixture Manufacturing (335131)

SIC

Electric Lighting & Wiring Equipment (3640)

akta.pro primary industry

Skylights, Roof Windows & Daylighting (IMADAFAL)

akta.pro secondary industries

Lighting Controls & Smart Lighting Systems (BPABAGAC), Windows (IMADAIAC)

Keywords

• LED luminous ceilings
• Virtual skylight windows
• Circadian lighting systems
• Biophilic architectural lighting
• Wellness lighting solutions

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. LED Lighting Hardware Sales: Cumulux generates revenue primarily through one-time sales of LED lighting hardware products, including luminous ceilings, virtual windows, and suspended luminaires. Products are sold with a 5-year warranty for professionals and 2-year warranty for individuals. The company also provides professional installation services through certified partners.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

Cumulux designs, manufactures, and sells LED-based luminous ceilings and wall-mounted virtual windows that combine high-resolution French landscape photography with LED backlighting. Its product range includes classical luminous ceilings, circadian (Evolution) ceilings that mimic natural daylight cycles to support biological rhythm regulation, suspended luminaires, and virtual windows for healthcare, enterprise, and residential spaces lacking natural light. The company serves both professional buyers (hospitals, clinics, EHPADs, offices) with a 5-year warranty and certified installers, and individual consumers with a 2-year warranty and modular plug-and-play installation.

Product overview

Cumulux offers a portfolio of LED-based luminous ceilings (plafonds lumineux) and virtual windows (fenêtres virtuelles) designed to create visual openings in spaces lacking natural light. The product line is organized into two main families: standard LED products (Classique) with fixed 6000°K illumination, and circadian rhythm products (Evolution) with dynamic color temperature (2700°K to 6500°K). Products are available in various formats including 60x60 cm, 60x120 cm, and 120x120 cm, plus suspended luminaires (Le Cube and Le Disque). Both ceiling panels and wall-mounted virtual windows feature high-resolution French landscape photography to create realistic sky and outdoor views.

Differentiator

Problem solved

Functional benefit

Products and services

• Plafond Lumineux Classique Classic LED luminous ceiling panel combining high-resolution French landscape photography with LED backlighting, designed for healthcare, enterprise, and residential spaces lacking natural light. Available in standard 600x600mm and 625x625mm formats compatible with T-bar suspended ceilings.
• Plafond Lumineux XL Extra-large LED luminous ceiling panel from the classic line, using the same HD French landscape photography and LED backlighting technology but in an expanded format for larger surface coverage.
• Plafond Circadien (Evolution Ciel) Circadian LED luminous ceiling that varies color temperature between 2700K and 6500K and melanopic ratio from 0.29 to 1.07 across the day to support biological rhythm regulation. Designed for healthcare facilities (hospitals, clinics, EHPADs) and enterprises seeking well-being lighting aligned with natural daylight cycles.
• Plafond Circadien Eco (Evolution Eco) Economy version of the circadian luminous ceiling, providing entry-level biodynamic lighting with circadian color temperature variation for healthcare, enterprise, and residential customers seeking well-being benefits at a lower price point.
• Le Cube (Suspended Luminaire) Cube-shaped suspended LED luminaire that hangs from the ceiling to provide both illumination and decorative appeal using Cumulux's HD landscape photography and LED technology.
• Le Disque (Suspended Luminaire) Disc-shaped suspended LED luminaire that hangs from the ceiling to provide both illumination and decorative appeal using Cumulux's HD landscape photography and LED technology.
• Plafond Lumineux Pro Dedicated B2B professional offer for luminous ceilings, featuring a 5-year warranty and professional installation by Cumulux's certified national network of installers, targeted at healthcare facilities and enterprise workspaces.
• Module de Démonstration Offert Free demonstration module offered to professional buyers (healthcare and enterprise) to allow hands-on evaluation of Cumulux luminous ceilings and circadian technology before committing to a full project quote.

Quantifiable outcome

• Reduces patient stress by more than 50% in clinical waiting areas through biophilic visual stimulation
• +6 more outcomes

Named customers35 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Three partnerships are on record, tiered minor and core.

• Start-way MaraisminorOthersCumulux houses its showroom within the Start-way Marais coworking space in Paris (64 rue de Saintonge, 75003). The showroom occupies a basement room of 15m² that demonstrates circadian lighting products in a real-world context — a windowless underground space that showcases the transformative effect of Cumulux products. The partnership provides Cumulux with a prime location to receive prospective clients and demonstrate products.
• Tertio EngineeringminorImplementation/ SI/ Consulting PartnerTertio Engineering is referenced as the installation partner responsible for installing Cumulux products at the Louis Vuitton headquarters cafeteria project. They handled the physical installation of luminous ceilings in the underground employee restaurant. Cumulux provides the products and technical specifications while Tertio executes the installation.
• LibucoreTechnology or IntegrationLibu provides the proprietary circadian lighting technology integrated into Cumulux Evolution products. The Libu technology enables a wide melanopic ratio (MR) range from 0.29 to 1.07, which allows Cumulux Evolution luminaires to effectively stimulate or suppress melanopic photoreceptors in the eye to regulate and resynchronize the human biological clock. This is a core technology component of Cumulux's circadian product line.

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Lutron Electronics: Lutron (US) is the dominant lighting-controls manufacturer whose DALI/wireless dimming ecosystem Cumulux integrates with. Adjacent incumbent shaping the smart-lighting control infrastructure on which Cumulux's Evolution products depend.
• Signify (Philips Lighting): Signify (Netherlands), owner of the Philips lighting brand, is the global lighting-equipment incumbent with its own circadian/well-being portfolio (NatureDynamics, Tunable White) and broad distribution into healthcare and corporate customers where Cumulux also sells.
• Zumtobel Group: Zumtobel (Austria) is a major European professional-lighting manufacturer with a strong bio-spatial/circadian active-light product line and existing healthcare/channel relationships that overlap with Cumulux's addressable market.
• Trilux Group: Trilux (Germany) is a mid-size professional European lighting manufacturer serving offices, education, healthcare, and industry with an active bio-spatial/circadian product family analogous to Cumulux's Evolution range.
• Waldmann Lighting: Waldmann (Germany) makes architectural and healthcare lighting, including circadian solutions (e.g., LightLine) for nursing homes and hospitals — direct overlap with Cumulux's EHPAD and healthcare-customer use cases across Europe.
• Legrand: Legrand (France) is a major French-headquartered electrical and digital-building infrastructure company. Operating in the same domestic market as Cumulux, with potential to bundle well-being lighting into smart-building solutions.
• Acuity Brands: Acuity Brands (US) is a large North American lighting-and-controls conglomerate with circadian/biophilic offerings; broader portfolio but indicative of where incumbent capital is flowing in the well-being-lighting category.

Direct peers

• The Sky Factory: The Sky Factory (US) designs and manufactures virtual skylights and virtual windows with photographic imagery backlit by LEDs. Direct US-based peer in the same biophilic-illusion segment, primarily serving healthcare and corporate interiors.
• Feelux: Feelux (Korea) makes circadian-rhythm lighting systems targeting commercial interiors. Closest peer to Cumulux's Evolution circadian line, with comparable melanopic-ratio tunability and product form factor.
• CoeLux: CoeLux (Italy) manufactures artificial skylights using proprietary LED+nanotechnology stacks to replicate the sun and sky. Most direct head-to-head competitor to Cumulux's luminous ceilings, serving healthcare, retail, and premium real-estate verticals with a similar high-end hardware product.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCQx5IgBID2AAbsjD1BApd4A
• Facebookfacebook.com/cumuluxfr
• LinkedInlinkedin.com/company/cumulux-fr
• Instagraminstagram.com/cumulux

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Cumulux