Ingenieurbüro Dr. Lehners + Wittorf

What Ingenieurbüro Dr. Lehners + Wittorf does

Ingenieurbüro Dr. Lehners + Wittorf (operating as L+W Ingenieure) is a German engineering partnership founded in 1994 that provides geotechnical consulting, planning, and quality assurance services for construction and infrastructure projects. The firm operates from its headquarters in Lübeck and a branch office in Hamburg (Barsbüttel), serving both private and public-sector clients across northern Germany's Schleswig-Holstein and Hamburg metropolitan region. Its service portfolio spans geotechnics, hydraulic engineering and water management, surveying and 3D modeling, quality assurance for earthworks and road construction, environmental soil protection, infrastructure planning, landfill technology, and an in-house soil mechanics laboratory. Core deliverables include Baugrundgutachten (ground condition reports), quality assurance and construction monitoring for earth and road works, and the planning and realization of engineering structures including foundations, dams, dikes, flood protection, hydraulic works, and transportation routes.

The company is structured as a Partnerschaftsgesellschaft mbB under the legal name Dr. Lehners + Wittorf Beratende Ingenieure Partnerschaftsgesellschaft mbB, with ownership implied to rest with the founding partners. Headcount is reported as 11-50 employees. The firm generates revenue exclusively through project-based engineering consulting engagements, with public-sector projects typically won through tendering and private-sector work sourced via direct client relationships. Pricing is project-specific and quote-based, with no standardized tiers. Distribution is direct: services are delivered from the two German offices, with no intermediaries, resellers, or digital channels; client acquisition relies on a professional website, direct phone/email contact, and the firm's 30-year regional reputation.

Operationally, L+W positions itself on interdisciplinary project planning that leverages synergy effects across its specialist departments, an in-house soil mechanics laboratory enabling comprehensive material testing, and a focus on optimized, resource-conserving construction methods. The technology stack is conventional for a German engineering consultancy of this scale (geotechnical investigation, surveying, soil laboratory testing) and shows no public evidence of AI, software-as-a-service, or platform-based delivery. The firm has no disclosed funding, no parent company, no M&A history, no patents or trademarks, no publicly identified awards, and no partnerships, indicating an owner-operated, regionally focused professional services model.

Name

Ingenieurbüro Dr. Lehners + Wittorf

Legal name

Dr. Lehners + Wittorf Beratende Ingenieure Partnerschaftsgesellschaft mbB

Website

https://geo-technik.com

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

11–50 employees

Short description

Ingenieurbüro Dr. Lehners + Wittorf (L+W Ingenieure) is a German engineering partnership founded in 1994 that provides geotechnical consulting, soil and water investigations, surveying, quality assurance, and infrastructure planning for private and public-sector clients in northern Germany.

Ownership category

akta.pro rank

Product category

Geotechnical Engineering Services

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Geotechnical & Subsurface Engineering Consulting (BPAHAIAB)

akta.pro secondary industries

Water, Wastewater & Hydraulics Engineering Consulting (BPAHAIAD), Geotechnical Design, Engineering & Consulting (Analysis, Design, Peer Review) (IMAFAOAK), Civil & Structural Engineering Consulting (BPAHAIAA)

Keywords

• Geotechnical consulting
• Soil investigation services
• Hydraulic engineering
• Construction quality assurance
• Environmental soil protection

Headquarters

HQ city

Lübeck

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure

Revenue model

1. Engineering Consulting Services: Project-based consulting fees for geotechnical investigations, soil reports, quality assurance services, and engineering planning. Revenue is generated through one-time project engagements for both private and public sector clients.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

The firm provides geotechnical consulting, ground investigation reports (Baugrundgutachten), quality assurance and monitoring services for earthworks and road construction, and planning of engineering structures including foundations, dams, dikes, flood protection, hydraulic engineering, and traffic route infrastructure. It also operates an in-house soil mechanics laboratory for physical and chemical analysis of soil samples and offers surveying and 3D modeling, environmental soil protection, landfill technology, and infrastructure planning services.

Product overview

Ingenieurbüro Dr. Lehners + Wittorf (L+W Ingenieure) is a geotechnical engineering consulting firm offering a unified suite of engineering services. The company operates primarily through its specialist departments (Fachbereiche) which include Geotechnik, Wasserbau/-wirtschaft, Vermessung/Modellierung, Qualitätssicherung, Umwelt Bodenschutz, Infrastruktur, Deponietechnik, and a Bodenmechanisches Labor (soil mechanics laboratory). Core offerings include Baugrundgutachten (ground condition reports) for private and public clients, quality assurance and monitoring services for earth and road construction, and the planning and realization of engineering structures in foundation engineering, dam construction, flood protection, hydraulic engineering, and traffic route construction. The firm has been operating for 30 years with offices in Lübeck (headquarters) and Hamburg (Barsbüttel branch).

Differentiator

Problem solved

Functional benefit

Products and services

• Geotechnik Geotechnical engineering services including ground investigations, soil analysis, and foundation engineering for construction projects.
• Wasserbau / -wirtschaft Hydraulic engineering and water management services including dam construction, flood protection, and waterway infrastructure planning.
• Vermessung / Modellierung Surveying and 3D modeling services for construction sites and infrastructure projects.
• Qualitätssicherung Quality assurance and monitoring services for earth and road construction projects, including inspection and consulting.
• Umwelt Bodenschutz Environmental soil protection services including soil analysis and environmental assessments.
• Infrastruktur Infrastructure planning and engineering services for transportation and municipal infrastructure.
• Deponietechnik Landfill technology services including planning and consulting for waste disposal facilities.
• Bodenmechanisches Labor Soil mechanics laboratory providing physical and chemical analysis of soil samples for construction and environmental projects.
• Baugrundgutachten Ground condition reports and expert opinions for private and public clients, assessing soil suitability for construction.
• Ingenieurbauwerke Engineering structure design and realization services covering foundation engineering, dam construction, flood protection, hydraulic engineering, and traffic route construction.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators1 record

Recent moves3 records

Expansion highlights3 records

Market position

Competitive moat2 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

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 Ingenieurbüro Dr. Lehners + Wittorf