What durlum group gmbh does

durlum Group GmbH is a privately held German manufacturer of architectural metal ceilings, integrated lighting, daylight, acoustic, climate-control, fire-protection, and cleanroom ceiling systems, headquartered in Schopfheim in the Black Forest and founded in 1967. The group operates three divisions — CEILING LIGHTING AMBIENCE (nine operating companies), METAL PROCESSING (ZI Jena GmbH, precision sheet metal acquired in 1991), and EMERGENCY LIGHTING (HUCO NOTLICHT AG, acquired in 1999) — for a total of 11 wholly-owned subsidiaries across Germany, Switzerland, Austria, France, the Netherlands, Poland, Turkey, Singapore, India, and the United States. Manufacturing runs from German sites in Schopfheim, Bexbach, and Jena, with regional sales and project-support subsidiaries handling specification, installation, and after-sales in each market.

The product portfolio is organised around three pillars: Metalldecken (metal ceilings, including classic systems such as RHOMBOS expanded metal and rectangular panels, design ceilings such as POLYLAM, LOOP, FLUID, TOMEO, BUBBLE, and DOMUS, and functional ceilings such as dur-SONIC acoustic absorbers, dur-COOLTEC water-based climate ceilings, dur-F30 fire protection, and dur-HYTEC cleanroom systems); Licht (lighting, including PUNKT point lights, LINIE linear lights, LUMEO surface lights, PUNTEO downlights, and the dur-TRONIC M control system unifying DALI and DMX); and Tageslicht (daylight systems, including LIGHT PIPE tubes and DIAMOND TUBE high-gloss aluminium reflective systems). Supporting technologies include powder coating and anodising, the DUROSATIN anti-static LED cover, DUROBOND acoustic fleece, and dur-GRAPHICS custom surface printing. Each product line is supported by published performance data, including acoustic absorption values up to αw = 1.00 and four EPDs (aluminium, steel, steel as climate ceiling, fire protection).

The business model is project-based and specification-driven. durlum sells through direct enterprise field sales, engaging architects, planners, and developers from concept to installation, with no public pricing — every quote is bespoke. Revenue is generated primarily through one-time product sales of metal ceilings and integrated lighting, plus custom project services. The company maintains ISO 9001, ISO 14001, and ISO 50001 certifications (TÜV, valid through April 2029), TAIM e.V. certifications, and four published EPDs, which position it for LEED-, DGNB-, and BREEAM-certified tenders across commercial offices, education, healthcare, aviation, rail, museums, automotive, banking, and research facilities. Marketing is multi-channel — website in seven languages, active social media on Facebook, Instagram, LinkedIn, and YouTube, trade shows (Architect@Work Vienna 2026, AIA San Diego 2026), newsletters, and detailed project case studies — anchored to named reference projects such as Changi Airport Terminal 3, Grand Egyptian Museum, AUDI Saragossa, Banco Popular Madrid, SBB Oerlikon, and Bharati Antarctica.

Name

durlum group gmbh

Legal name

durlum GmbH

Website

https://durlum.de

Company type

Private

Founded year

1967

Operating status

Operating

Short description

durlum Group GmbH manufactures architectural metal ceilings, integrated LED lighting, daylight systems, and acoustic/climate/fire-protection ceiling solutions. It serves architects, planners, and developers on specification-driven construction projects across commercial, healthcare, aviation, rail, education, and cultural sectors in Europe, Asia, and North America.

Ownership category

akta.pro rank

Product category

Architectural Metal Ceilings

NAICS

Architectural and Structural Metals Manufacturing (3323), Ornamental and Architectural Metal Products Manufacturing (33232), Sheet Metal Work Manufacturing (332322), Electric Lighting Equipment Manufacturing (3351)

SIC

Sheet Metal Work (3444), Electric Lighting & Wiring Equipment (3640), Miscellaneous Fabricated Metal Products (3490)

akta.pro primary industry

Metal Roofing & Wall Panels (Architectural/Structural) (IMADACAG)

akta.pro secondary industries

Metal Cladding, Soffits & Trim (Non-Panel Components) (IMADACAM), Lighting Controls & Building Integration (Drivers, sensors, dimming, lighting control panels, networked lighting) (IMAGAIAI)

Keywords

• Metal ceiling systems
• Architectural lighting solutions
• Daylight systems
• Acoustic ceiling systems
• Metal wall cladding

Headquarters

HQ city

Schopfheim

HQ country

Germany

HQ region

Europe

Offices14 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Metal Ceiling Systems Sales: Manufacture and sale of metal ceiling systems including classic metal ceilings, design ceilings, and functional ceilings. Revenue generated through project-based custom orders and standard product sales.
2. Lighting and Daylight Systems: Sale of integrated lighting solutions including LED luminaires, light management systems, and daylight harvesting systems.
3. Custom Project Solutions: Custom light solutions development and integration services for architectural projects, working with construction teams from initial concept to completed installation.
4. Surface Treatment and Finishing: Powder coating, anodizing, and surface enhancement services for metal ceilings including standard RAL colors and custom finishes.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

durlum designs, manufactures, and supplies architectural metal ceiling systems, integrated LED lighting, and daylight harvesting solutions for commercial, public, and infrastructure projects. Its portfolio spans classic metal ceilings (raft, panel, RHOMBOS expanded metal, cassette, baffle), design ceilings (POLYLAM, LOOP, FLUID, TOMEO, BUBBLE, DOMUS), functional ceilings (dur-COOLTEC heating/cooling, dur-F30 fire protection, dur-SONIC acoustic, dur-HYTEC cleanroom), lighting (PUNKT, LINIE, LUMEO), dur-TRONIC M building control, LIGHT PIPE and DIAMOND TUBE daylight systems, PAREA daylight simulation, DUROSATIN LED covers, and metal wall cladding, with custom project engineering delivered through 11 subsidiaries.

Product overview

durlum Group GmbH is a manufacturer of metal ceilings, lighting systems, and daylight solutions for modern architecture. Founded in 1967 in Schopfheim, Germany, the company operates as a group with 11 subsidiaries across Europe and Asia. The product portfolio is organized into three core divisions: Metalldecken (Metal Ceilings), Licht (Lighting Systems), and Tageslicht (Daylight Systems). Metal ceilings include classic systems (raft ceilings, rectangular panels, expanded metal RHOMBOS, open-cell ceilings, metal tiles), design ceilings (PULSA, POLYLAM, LOOP, BUBBLE, FLUID, DOMUS), and functional ceilings (dur-F30 fire protection, dur-HYTEC cleanroom, dur-SONIC acoustic systems, dur-COOLTEC cooling ceilings). Lighting products encompass point lights (PUNKT), line lights (LINIE), surface/area lights (LUMEO series, PAREA), and the dur-TRONIC M control system combining DALI and DMX. Daylight solutions include LIGHT PIPE and DIAMOND TUBE systems. Additional offerings include wall cladding, ceiling-light integrations, DUROSATIN LED cover material, and custom project solutions. The products serve sectors including mobility, education, retail, office, healthcare, culture, outdoor, and leisure.

Differentiator

Problem solved

Functional benefit

Brands

• durlum Group: Corporate group brand for ceiling, lighting, and ambience solutions
• RHOMBOS
• dur-SONIC
• dur-SOLO
• dur-COOLTEC
• dur-F30
• dur-HYTEC
• dur-TRONIC
• DUROSATIN
• dur-GRAPHICS
• dur-TOMEO
• dur-BUBBLE
• dur-FLUID
• dur-DOMUS
• POLYLAM
• LUMEO
• PUNTEO
• LIGHT PIPE
• DIAMOND TUBE
• PAREA
• OMEGA
• LIVA
• GEO
• QUADRA
• TICELL
• STARLAM
• STARMAX
• LOOP
• OPEN SKY
• C625
• DUROBOND
• DEFEO

Products and services

• Metal Ceilings (Metalldecken) Core product line of metal ceiling systems in steel and aluminum covering classic ceilings (rectangular panels, raft ceilings, expanded metal, open-cell, cassette, linear baffles), design ceilings (CHARACTER line), and functional ceilings (acoustic, fire protection, cleanroom, heating/cooling) for architectural applications.
• RHOMBOS Expanded Metal Ceilings Expanded metal ceiling systems (S1, S4, S5, S5.1, S7, S10H, FS variants) ideal for large free ceiling cross-sections, with neutral acoustic properties and flexible design options; combined with DUROBOND acoustic fleece achieves sound absorption up to αw = 0.95-1.00.
• POLYLAM Vertical Baffle System Linear, open vertical lamel/baffle system offering high design flexibility for diverse architectural applications, with a variant available with low-frequency acoustic absorption (POLYLAM dur-SONIC).
• dur-COOLTEC Heating and Cooling Ceilings Metal ceiling systems integrated with water-based tempered water circulation for silent, draft-free, and hygienic heating and cooling; includes STARLAM 9 COOLTEC and STARMAX 15 COOLTEC linear raster variants.
• dur-F30 Fire Protection Ceilings Fire-resistant metal ceilings meeting structural fire protection requirements with 30-minute fire resistance; includes the dur-F30 310.30 Easy-click variant with easy-click mechanism for corridor applications and easy revisability.
• dur-SONIC Acoustic Absorption Systems Metal ceiling elements that optimize room acoustics, including the dur-SONIC CUBE broadband absorber (αw up to 0.85) and dur-SONIC QUAD low-frequency absorber (αw 0.85-1.00 depending on configuration).
• dur-HYTEC Cleanroom Ceiling Metal cassette ceiling system (dur-HYTEC S5-C1) developed for rooms with special environmental cleanliness requirements such as laboratories and cleanrooms.
• Lighting Systems (Licht) Comprehensive architectural lighting product line covering point lights (PUNKT), line lights (LINIE), surface and area lights (LUMEO series, PAREA), and the dur-TRONIC M building control system for architectural illumination and lighting management.
• PUNKT Point Lights Point luminaires (PUNTEO-N, PUNTEO-J60, PUNTEO-Q50) that can be integrated into durlum ceilings or used as general, wall, accent, or facade lighting in architectural projects.
• LINIE Line Lights Continuous, shadow-free linear lighting and light channel systems for precise linear illumination in architectural applications.
• LUMEO Surface Lights Surface-mounted and recessed LED luminaires (LUMEO-R round, LUMEO-C recessed, FLUID-C) for homogeneous illumination, optionally integrated with DUROSATIN cover material; LUMEO-R can be quickly adapter-mounted into LOOP Typ 2 design ceilings.
• dur-TRONIC M Control System Building control system that unifies DALI and DMX protocols in one cost-effective system, particularly suited for lighting projects of medium complexity.
• Daylight Systems (Tageslicht) Natural daylight solutions including light tubes, reflective tube systems, and daylight simulation products for bringing daylight into interior spaces.
• LIGHT PIPE Daylight System Light tube system that directs natural daylight into interior spaces using a simple tube-based approach.
• DIAMOND TUBE Daylight System Daylight system composed of numerous equilateral triangular elements made of high-gloss aluminum that effectively direct incoming daylight into interior spaces.
• PAREA Daylight Simulation Illuminated luminous wall particularly suitable for simulating daylight in rooms without access to natural light sources.
• Ceiling & Light Integration (Decke & Licht) Combined ceiling and lighting solutions integrating durlum metal ceilings with luminaires for harmonious architectural design across styles, including combinations such as POLYLAM+PUNKT, LOOP+PUNKT, and FLUID-C+LUMEO-R.
• Metal Wall Cladding Metal wall panels and claddings available with various surface treatments including powder coating and anodizing for architectural wall applications.
• Custom Project Solutions Individual, tailored custom light solutions and bespoke metal ceiling configurations developed jointly with project partners from concept through installation, combining function and design for unique architectural projects.
• DUROSATIN LED Cover Material Flexible, anti-static, heavy flame-resistant (B1), easy-to-clean and health-safe architectural cover material for LUMEO LED surface-mounted luminaires, with custom pattern printing capability.

Quantifiable outcome

• dur-SONIC CUBE broadband absorber achieves sound absorption values up to αw = 0.85 depending on occupancy density
• +3 more outcomes

Named customers17 records

Segments9 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature9 records

Partnerships

Three partnerships are on record, tiered core and minor.

• durlum Group GmbHcoreOthers · 1 January 2008Parent holding company founded in 2008 to manage affiliated companies. Divides operations into three main areas: CEILING LIGHTING AMBIENCE (9 companies), METAL PROCESSING (ZI Jena GmbH), and EMERGENCY LIGHTING (HUCO NOTLICHT AG).
• HUCO NOTLICHT AGminorOthers · 1 January 1999Swiss emergency and safety lighting manufacturer acquired by durlum Group in 1999, originally traded as HUCO AG. Located in Münchwilen, Switzerland.
• Georg Haag AGminorOthers · 1 January 1967Swiss shelving and store fitting company located in Beromünster, Switzerland. Part of the durlum Group ecosystem.

Scale indicators4 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Knauf Ceiling Solutions: Knauf Ceiling Solutions (formerly Armstrong Ceiling Solutions) is a global manufacturer of metal and mineral fiber ceiling systems for commercial interiors. Directly competes with durlum across classic, design and functional ceiling categories, including acoustic and integrated lighting solutions, and operates at a much larger global scale.
• Saint-Gobain Ecophon: Saint-Gobain Ecophon manufactures acoustic ceiling and wall solutions for offices, healthcare, education and other commercial interiors. Competes directly with durlum's dur-SONIC acoustic ceiling and integrated ceiling-light offerings, and benefits from Saint-Gobain's broader distribution and sustainability resources.
• Rockfon (Rockwool): Rockfon, a brand of the Rockwool Group, manufactures stone-wool acoustic ceiling panels and metal ceiling systems for architectural applications. Directly comparable to durlum across acoustic ceiling categories, with comparable performance data and overlapping target segments in education, healthcare and offices.
• Hunter Douglas Architectural: Hunter Douglas Architectural is a global manufacturer of architectural metal ceilings, wall systems and sun-control solutions. Directly comparable to durlum in metal ceiling panels and custom architectural metalwork, serving similar commercial and public-building projects.
• Lindner Group: Lindner Group is a German family-owned manufacturer and contractor of interior fit-out products including metal ceilings, raised floors and partition systems. Directly comparable to durlum in the German and European architectural interiors market, with similar vertical integration across ceiling and lighting.
• USG Corporation (Knauf): USG Corporation, now part of Knauf, manufactures ceiling grids, panels and integrated lighting systems for commercial interiors. Competes with durlum in the integrated ceiling-and-lighting category with comparable Donn/AXCEED grid and panel product lines.

Regional players

• Odenwald Faserplattenwerk: Odenwald is a German manufacturer of architectural ceiling, wall and acoustics products serving primarily the German and European market. Comparable to durlum as a regional specialty manufacturer focused on acoustic and architectural ceiling systems, but smaller and less internationally diversified.

Broad incumbents

• Zumtobel Group: Zumtobel Group is an Austrian-listed manufacturer of professional lighting and lighting management systems with the Zumtobel, Thorn and Tridonic brands. Comparable to durlum on the integrated ceiling-lighting and DALI/DMX control side (dur-TRONIC M), but operates as a broader lighting incumbent rather than a ceiling specialist.
• Fagerhult Group: Fagerhult Group is a Swedish-listed lighting company owning Fagerhult, iGuzzini, LED Linear and other premium architectural lighting brands. Comparable to durlum in the project-based architectural lighting category that frequently co-specifies with metal ceilings, though without the metal ceiling manufacturing base.

Others

• TROX GmbH: TROX is a German family-owned manufacturer of ventilation, air-conditioning and fire-protection components for commercial buildings. Comparable to durlum as an adjacent German specialty manufacturer in the building-envelope ecosystem, with related activity in climate-controlled ceilings and architectural indoor environments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCBL99u8vELpTiMFZjwI_-wA
• Facebookfacebook.com/durlum
• LinkedInlinkedin.com/company/durlum
• Instagraminstagram.com/durlum.gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries13 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 durlum group gmbh