R. Kohlhauer

What R. Kohlhauer does

R. KOHLHAUER GmbH is a German manufacturer of multifunctional noise protection systems headquartered in Gaggenau, Baden-Württemberg, with operations spanning approximately 30 years and a presence in 44 countries. The company designs, produces, and sells noise barriers for road, rail, urban, and industrial infrastructure, serving municipalities, public authorities, highway and railway operators (including Deutsche Bahn), construction firms, architects, and engineering offices via direct enterprise sales, public tenders, and an international partner network.

Its product portfolio consists of eight branded, trademarked lines built on materials-science engineering: KOHLHAUER SCORSA® (transparent noise barriers), ALUFERA® (aluminum lattice damping), PLANTA® (modular greened stone-wool walls), VOLTA® (photovoltaic-integrated noise walls), ALUMNA® (industrial-design aluminum elements), LIGNA® (natural wood systems), TAP-RAIL (rail-specific transparent solutions), and URBAN PROTECTION SHIELD. The core technological proposition is the integration of acoustic absorption with secondary utility — renewable energy generation, ecological greening, transparency/visibility, and aesthetic urban integration — distinguishing the offering from conventional single-function barriers.

The business model is sales-led B2B / B2G, with revenue generated from one-time sales of customized systems and components plus associated design, consultation, and installation-support services. Pricing is project-specific (no list price); sales occur through a dedicated field sales team, public tenders, and channel partners. A wholly-owned Polish subsidiary, ALFA BOND KOHLHAUER (established 2006, relocated to Warsaw in 2022), executes Polish projects, and partnerships (e.g., LYCOM in France) support West European delivery. The company is an owner-managed family business undergoing a smooth transition to second-generation leadership, with no disclosed external investors, public listing, or revenue figures.

Name

R. Kohlhauer

Legal name

R. KOHLHAUER GmbH

Website

https://kohlhauer.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

11–50 employees

Short description

R. KOHLHAUER GmbH is a German manufacturer of multifunctional noise protection systems for road and rail infrastructure, serving municipalities, public authorities, architects, and construction firms across 44 countries with eight branded product lines.

Ownership category

akta.pro rank

Product category

Noise Protection Systems

akta.pro primary industry

Vibration Control & Anti-Vibration Products (Mounts, Bushings, Isolators) (IMANALAD)

akta.pro secondary industry

Soundproofing & Acoustic Insulation (Walls/Ceilings) (HSAPAFAH)

Keywords

• Noise protection systems
• Noise barrier manufacturing
• Acoustic infrastructure solutions
• Highway noise barriers
• Railway noise protection

Headquarters

HQ city

Gaggenau

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Noise protection system sales: KOHLHAUER generates revenue through the manufacture and sale of noise protection systems and components, sold directly to municipalities, public authorities, construction companies, and infrastructure operators. Products are offered as complete systems or individual elements with project-specific customization. The company also provides associated services including project consultation, design support, and installation guidance.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

R. KOHLHAUER GmbH manufactures multifunctional noise protection systems for highways, railways, and urban environments. The company's portfolio includes transparent noise barriers (SCORSA®), aluminum lattice systems (ALUFERA®), plantable walls (PLANTA®), PV-integrated noise barriers (VOLTA®), aluminum industrial elements (ALUMNA®), wood systems (LIGNA®), railway solutions (TAP-RAIL), and urban protection shields. These engineered physical products combine acoustic performance with secondary functions such as solar energy generation, greening, and aesthetics.

Product overview

R. Kohlhauer GmbH is a manufacturer of noise protection systems and environmental protection technology. The product portfolio consists of eight core product lines organized around different materials and functions: transparent noise barriers (SCORSA®), aluminum lattice systems (ALUFERA®), plantable/greened walls (PLANTA®), integrated photovoltaic noise barriers (VOLTA®), aluminum industrial elements (ALUMNA®), natural wood systems (LIGNA®), railway-specific solutions (TAP-RAIL), and urban protection systems (URBAN PROTECTION SHIELD). These products address both transparent and opaque (blickdicht) noise protection needs across road, rail, industrial, and urban applications. The company positions itself as offering multifunctional solutions that combine noise protection with additional benefits such as energy generation, greening, and aesthetic integration.

Differentiator

Problem solved

Functional benefit

Brands

• KOHLHAUER SCORSA®: Transparent noise protection in standard format.
• KOHLHAUER ALUFERA®
• KOHLHAUER PLANTA®
• KOHLHAUER VOLTA®
• KOHLHAUER ALUMNA®
• KOHLHAUER LIGNA®
• TAP-RAIL
• URBAN PROTECTION SHIELD

Products and services

• SCORSA®

Quantifiable outcome

• 65 kWp photovoltaic capacity from a single 234m noise barrier installation (Neuötting project, 2016), generating ~30,000 kg CO2 savings per year
• +4 more outcomes

Named customers12 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Eight partnerships are on record, tiered core and supporting.

• Deutscher Verband für Lärmschutz (DVLV)coreStrategic or Co-development Partner · 18 November 2024KOHLHAUER is a founding member of DVLV (German Association for Noise Protection on Transport Routes). The company participates actively in this association to advance expertise and advocacy in noise protection, contributing to industry standards development and policy influence.
• LYCOMcoreStrategic or Co-development Partner · 27 August 2024LYCOM is KOHLHAUER's French partner for the Paris 2024 Olympic Athletes' Village noise protection project. The partnership combined KOHLHAUER's product expertise with LYCOM's local market knowledge and execution capability to deliver noise protection at Olympic scale.
• ALFA BOND KOHLHAUER (Polish Subsidiary)coreOthers · 1 January 2006ALFA BOND KOHLHAUER is KOHLHAUER's wholly-owned Polish subsidiary, established in 2006 and headquartered in Warsaw since 2022. The subsidiary handles noise protection projects across Poland, including highway bypasses (Wrocław) and urban tunnels (Ursynów), operating independently while maintaining brand alignment.
• Forschungsgesellschaft für Straßen- und Verkehrswesen (FGSV)coreStrategic or Co-development PartnerKOHLHAUER is a member of FGSV (Research Society for Roads and Traffic), participating in research committees that shape standards and technical guidelines for road and traffic infrastructure, including noise protection.
• European Noise Barrier Federation (ENBF)coreStrategic or Co-development PartnerKOHLHAUER is a member of ENBF, contributing to the European-level dialogue and standards development for noise barrier technology across the continent.
• SER (Syndicat des Équipements de la Route)supportingStrategic or Co-development PartnerKOHLHAUER is a member of SER (Association for Road Equipment), participating in the French road equipment industry association for knowledge sharing and market presence.
• Elektromobilität Süd-WestsupportingStrategic or Co-development PartnerKOHLHAUER is a member of the Elektromobilität Süd-West cluster, contributing to the advancement of electromobility and sustainable transportation solutions in southwest Germany.
• Bundesverband Solarwirtschaft (BSW)supportingStrategic or Co-development PartnerKOHLHAUER is a member of BSW (Federal Association of Solar Industry), reflecting its integration of photovoltaic technology into noise protection products (VOLTA® series) and commitment to renewable energy.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Knauf: German-headquartered global building-materials group producing plasterboard, insulation and acoustic systems including sound-control boards. Comparable in materials and acoustic-product overlap with KOHLHAUER, but Knauf operates as a broad diversified incumbent across many construction categories.
• Saint-Gobain Ecophon: Saint-Gobain's acoustic-systems brand producing sound absorbers, ceilings and wall panels for indoor environments. Shares the broader acoustics category with KOHLHAUER, though Ecophon is interior-focused while KOHLHAUER is exterior infrastructure-focused.
• Rockwool International: Danish global leader in stone wool insulation that produces stone-wool-based acoustic and noise-barrier products for transport infrastructure. Directly comparable to KOHLHAUER's PLANTA® and broader stone-wool barrier portfolio, but operates at vastly larger scale across multiple building-product categories.

Direct peers

• Echo Barrier: UK-based specialist in temporary and portable noise barrier systems used on construction sites and events. Comparable to KOHLHAUER in core acoustics expertise but focused on the temporary/portable end of the market rather than permanent transport infrastructure.
• Kinetics Noise Control: US manufacturer of noise and vibration control products including barrier walls, isolators and architectural acoustic products. Closely aligned with KOHLHAUER's noise-and-vibration-control positioning, though serving primarily the North American market.
• Industrial Acoustics Company (IAC Acoustics): Global manufacturer of noise control and acoustic products including barrier walls, absorbers and enclosures for industrial, transport and power-generation applications. Closely comparable to KOHLHAUER in product scope and customer base, though with a heavier industrial-noise emphasis.
• Gramm Barrier Systems: UK-based manufacturer of acoustic barriers and noise walls for road, rail and industrial applications. Comparable to KOHLHAUER's core permanent-transport-infrastructure noise-barrier business, primarily serving UK and select international markets.
• Heras: European perimeter protection specialist (fencing, gates) that also markets integrated noise-barrier fencing solutions. Comparable to KOHLHAUER in serving European municipal and infrastructure customers with engineered outdoor boundary systems.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/R.KohlhauerGmbH
• LinkedInlinkedin.com/company/r.-kohlhauer-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 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 R. Kohlhauer