LÄRMKONTOR

What LÄRMKONTOR does

LÄRMKONTOR GmbH is a privately held Hamburg-based engineering consultancy founded in 1991, specializing in immission protection (noise, air pollutants, light immissions, odors, dust, and shading) and building physics (building acoustics, room acoustics, thermal protection). The firm operates six integrated service areas — Immissionsschutz, Bauphysik, Messungen, Umgebungslärm, Forschung & IT, and Kommunikation — delivered through project-based consulting engagements. It is an accredited measurement station under DIN EN ISO/IEC 17025:2018 (D-PL-19943-01-00) and an officially notified testing body under §29b BImSchG for Group V (Determination of Noise), giving it the regulatory standing to perform measurements and expert opinions required for German and EU permitting processes.

The company serves four primary customer segments: government authorities and municipalities (noise mapping, action planning, regulatory compliance), construction and real estate developers (building permits, sound insulation, thermal performance), industrial and commercial operators (TA Lärm/TA Luft compliance, permit support), and research institutions (federally funded research on noise effects and air pollution). Go-to-market is enterprise field sales through direct consulting engagements, public tenders, and project-based contracts, anchored in Hamburg and Northern Germany with some national and European-level research work.

The technical foundation rests on third-party specialized software (MISKAM, AUSTAL, SoundPLAN, Insul, ZUB Helena) combined with proprietary in-house tools including an Interactive Noise Map (Interaktive Lärmkarte), BEM/FEM acoustic simulation pipelines, custom GIS extensions, and a Baulärm-Monitoring system that captures continuous audio and publishes visualizations online. The firm has completed over 5,000 projects since inception and maintains an interdisciplinary team of approximately 30 professionals spanning environmental engineering, geography, physics, civil engineering, and computer science. Revenue is project-based professional services fees; specific pricing is not publicly disclosed, and the firm is founder/management-owned with no external investment.

Name

LÄRMKONTOR

Legal name

LÄRMKONTOR GmbH

Website

https://laermkontor.de

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

11–50 employees

Short description

LÄRMKONTOR GmbH is a Hamburg-based environmental engineering consultancy, founded in 1991, providing noise, air quality, and building physics consulting, accredited measurements, and research services to municipalities, developers, and industrial operators in Germany.

Ownership category

akta.pro rank

Headquarters

HQ city

Hamburg

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Project-based engineering consulting services for noise protection, immission control, and building physics. Services include expert opinions, feasibility studies, measurements, monitoring, and expert testimony for planning approvals, building permits, and regulatory compliance.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

LÄRMKONTOR GmbH is a Hamburg-based engineering consultancy that delivers environmental immission control, building physics, and accredited environmental measurement services. The firm provides noise protection assessments, air quality modeling, building and room acoustics, vibration and light immission measurements, strategic noise mapping, and custom software/research support for government authorities, municipalities, construction developers, and industrial operators. Services are delivered through project-based consulting engagements primarily in Germany.

Product overview

LÄRMKONTOR GmbH is a Hamburg-based engineering consultancy founded in 1991 specializing in immission protection and building physics. The company operates as a single integrated service organization offering six core service areas: Immissionsschutz (noise, air pollutants, light, odors, dust), Bauphysik (building/room acoustics, thermal protection), Messungen (accredited measurement station under §29b BImSchG), Umgebungslärm (strategic noise mapping and action planning), Forschung & IT (research and custom software development including the interactive noise map), and Kommunikation (conferences, exhibitions, information systems). The portfolio is structured as a unified consultancy offering rather than a software platform with modules.

Differentiator

Problem solved

Functional benefit

Products and services

• Immissionsschutz (Immission Protection Services) Consulting services covering noise protection, air pollutants, light immissions, odors, dust, and shading. Includes traffic noise (road, rail, ship, air), industrial/commercial noise, construction noise, sports and recreation noise, and renewable energy noise assessments for government authorities, project developers, and industrial operators.
• Bauphysik (Building Physics Services) Building physics consulting encompassing building acoustics, room acoustics, technical acoustics, and thermal protection. Services include sound insulation calculations and measurements, reverberation time measurements, HVAC noise assessment, thermal performance calculations, and lifecycle analysis (LCA) for buildings, aimed at construction companies and real estate developers.
• Messungen (Measurement Services) Accredited measurement station according to DIN EN ISO/IEC 17025:2018 and notified body under §29b BImSchG for Group V – Determination of Noise. Services include sound level measurements, construction and room acoustics measurements, vibration measurements, light measurements, building noise monitoring, and statistical pass-by (SPB) measurements for road surfaces.
• Umgebungslärm (Environmental Noise Services) Strategic noise mapping and noise action planning services under the EU Environmental Noise Directive. Includes noise mapping using CNOSSOS calculation methods, action planning with hotspot identification (LärmKennZiffer method), and public participation facilitation for municipalities and public authorities.
• Forschung & IT (Research & IT) Research and development in noise prediction methods, noise effects, and noise protection. Develops custom software solutions, database-supported propagation and evaluation models, interactive noise maps, GIS extensions, and information systems for acoustic and air quality applications for research institutions and public bodies.
• Kommunikation (Communication Services) Conferences, congresses, seminars, exhibitions, audiovisual media, brochures, reports, and information transfer services. Organizes events from working groups (10 persons) to congresses with several hundred participants for industry clients and public bodies.

Quantifiable outcome

• Over 5,000 projects successfully completed since 1991

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core, supporting and minor.

• LK Argus KasselcoreStrategic or Co-development PartnerTraffic planning office that LÄRMKONTOR works with in close cooperation for noise action planning projects. Collaboration involves joint project execution combining traffic planning expertise with noise assessment capabilities.
• konsalt GmbHsupportingStrategic or Co-development PartnerCollaboration partner for online citizen participation and execution of larger events in the context of noise action planning and public participation processes.
• 1und1minorOthersWeb hosting provider for LÄRMKONTOR's website. Statistical analysis of visitor access uses the WordPress plugin 'Count Per Day' with anonymized data stored on 1und1's servers in Germany.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Wölfel Engineering: Wölfel Engineering is a German engineering consultancy specializing in vibration, structural dynamics, and immission protection — directly comparable to LÄRMKONTOR's vibration measurements and industrial immission assessments. Both firms serve German industrial operators, plant operators, and public authorities with measurement-driven engineering services.
• ITA Ingenieurgesellschaft für Technische Akustik: ITA is a German specialist consultancy focused on technical acoustics, building acoustics, and immission protection, serving industrial clients, planners, and public authorities. Its service mix and target segments substantially overlap with LÄRMKONTOR's Immissionsschutz, Bauphysik, and Messungen offerings.
• Graner + Partner Ingenieure: Graner + Partner is a German engineering consultancy covering building physics (thermal, acoustic, fire), noise protection, and measurement services. Like LÄRMKONTOR, it combines Bauphysik and Immissionsschutz under one roof for construction and industrial clients in Germany.
• Peutz Consult: Peutz is a Dutch-headquartered consultancy with a German practice offering building acoustics, noise control, and environmental noise services. It is directly comparable to LÄRMKONTOR's Bauphysik and Umgebungslärm lines and competes for the same building-physics and EU Environmental Noise Directive mandates across the DACH region.
• Müller-BBM Group: Müller-BBM is one of Germany's largest acoustic, building-physics and immission-control consultancies with a near-identical service portfolio (noise, vibrations, building physics, air quality). LÄRMKONTOR competes head-to-head for German municipal and industrial noise-mapping, immission assessments, and accredited measurement work; Müller-BBM simply operates at national/international scale from Munich.

Broad incumbents

• AFRY (formerly Pöyry): AFRY is a large international engineering, design, and advisory firm with environmental, acoustics, and building-physics practices. It overlaps with LÄRMKONTOR's services but offers them as part of a much broader infrastructure and energy portfolio, typically winning large multi-disciplinary tenders that smaller specialists like LÄRMKONTOR cannot fully cover alone.
• WSP: WSP is a global engineering professional services firm with environment, acoustics, and building-physics capabilities. It competes with LÄRMKONTOR for large public-sector and developer-driven mandates where multi-country delivery and integrated infrastructure advisory are required.
• Ramboll: Ramboll is an international engineering consultancy with a sizable environment and acoustics practice serving both public authorities and industrial clients. It addresses the same EU Environmental Noise Directive and immission-control briefs as LÄRMKONTOR but operates at pan-European scale with much larger teams.

Others

• SoundPLAN GmbH: SoundPLAN is the dominant vendor of noise-prediction software used across the industry, including by LÄRMKONTOR. It is not a direct competitor for consulting services but is an ecosystem enabler/tool supplier that shapes the technical standards LÄRMKONTOR works within.

Regional players

• LK Argus Kassel: LK Argus is a traffic-planning consultancy that LÄRMKONTOR already partners with on noise action planning projects. It is comparable on the traffic-noise and action-planning side of the business and would be a regional alternative for clients seeking combined traffic-planning + acoustics delivery outside Hamburg.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 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 LÄRMKONTOR