gbm Gesellschaft für Baugeologie und -meßtechnik mbH - Baugrundinstitut

What gbm Gesellschaft für Baugeologie und -meßtechnik mbH - Baugrundinstitut does

gbm Gesellschaft für Baugeologie und -meßtechnik mbH (gbm Baugrundinstitut) is a privately held German geotechnical engineering and construction geology consultancy founded as an interdisciplinary working group (gbm-Verbund) of geoscientists and civil engineers. The firm, headquartered in Ettlingen with 55 employees distributed across 6 offices in Germany and Switzerland, delivers specialized services across the full infrastructure lifecycle: site investigation (boreholes, soundings, field tests), laboratory analysis via its subsidiary gbm Labor GmbH, geotechnical and hydrogeological consulting, 3D subsurface modeling, groundwater flow simulation, BIM-integrated planning, construction supervision, and EBA-recognized expert witness services. Its primary customer base comprises railway and transportation infrastructure owners and operators, most notably DB Netz AG and the Eisenbahn-Bundesamt (EBA), along with civil engineering contractors, real estate developers, and public infrastructure authorities.

The company operates a technology stack combining proprietary and third-party engineering software: FEFLOW, Mudflow, and MODFLOW for groundwater flow and transport modeling; GGU, DC, Sofistik, and Plaxis for FEM-based geotechnical calculations; Leapfrog WORKS for 3D geological modeling; GIS and BIM platforms (with buildingSMART-certified staff); and UAV-based drone surveying. A proprietary tunnel bestandsdatenbank software, developed in cooperation with DB Netz AG, has been deployed as the standard condition evaluation tool across all 7 DB Netz AG regional areas, representing the firm's most distinct productized asset. The group structure includes three wholly-owned operating entities: the parent in Ettlingen, gbm Labor GmbH (laboratory analyses), GFP Ingenieurbüro für Geotechnik und Umweltplanung GmbH (Duisburg, environmental planning), and Baugrundinstitut Schweiz (Möhlin, Switzerland).

Revenue is generated on a project-based, fee-for-service professional services model, with engagements scoped per project and initiated through direct client RFQ, long-term relationships, or referrals. The go-to-market is enterprise field sales targeting infrastructure owners, railway operators, construction companies, and public authorities, with no digital or self-serve channel. Three managing directors lead the firm (Michael Schlebusch and Ingo Kessel as Technical Managing Directors, Markus Henninger as Commercial Managing Director). The firm holds ESG and TÜV SÜD certifications, conducts training seminars for EBA and DB AG engineers, teaches at FH Karlsruhe, and maintains memberships in STUVA, DGGT, and vpi-EBA professional associations.

Name

gbm Gesellschaft für Baugeologie und -meßtechnik mbH - Baugrundinstitut

Legal name

gbm Gesellschaft für Baugeologie und -meßtechnik mbH Baugrundinstitut

Website

https://gbm-baugrundinstitut.de

Company type

Private

Operating status

Operating

Headcount range

51–100 employees

Short description

gbm Baugrundinstitut is a 55-employee German geotechnical engineering consultancy headquartered in Ettlingen with 6 offices in Germany and Switzerland, delivering site investigation, tunnel engineering, hydrogeology, BIM planning, and EBA-recognized expert witness services primarily to railway and infrastructure operators.

Ownership category

akta.pro rank

Product category

Geotechnical Engineering Services

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413), Geophysical Surveying and Mapping Services (54136)

akta.pro primary industry

Geotechnical & Subsurface Engineering Consulting (BPAHAIAB)

akta.pro secondary industries

Geotechnical Instrumentation & Monitoring (Settlement, Inclinometers, Piezometers) (IMAFAOAH), Geotechnical, Hydrogeological & Seismic Engineering (Slope Stability, Ground Support, Dewatering) (IMAKAOAN)

Keywords

• Geotechnical engineering services
• Tunnel construction consulting
• Hydrogeology investigations
• Foundation engineering
• Construction supervision

Headquarters

HQ city

Ettlingen

HQ country

Germany

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Geotechnical Consulting and Engineering Services: Project-based consulting and engineering fees for geotechnical investigations, geological and hydrogeological assessments, construction supervision, expert witness services, and planning. Revenue is generated through fee-for-service engagements with infrastructure clients, railway operators, construction companies, and public-sector entities. Services are scoped and priced per project, with offerings spanning investigation, design, supervision, and certification.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

gbm Gesellschaft für Baugeologie und -meßtechnik mbH is a German geotechnical engineering and construction geology consultancy providing site investigations, earthwork and foundation engineering, special underground construction, tunnel engineering, hydrogeology, expert witness services, BIM-based geoinformatics, and construction supervision for infrastructure projects. The firm delivers integrated services across all HOAI phases for railway, road, and building projects, with recognized EBA expert certifications.

Product overview

gbm Gesellschaft für Baugeologie und -meßtechnik mbH is a geotechnical engineering and construction geology consultancy offering an integrated portfolio of services for infrastructure projects. The core offerings include geotechnical site investigations, earthwork and foundation engineering, special underground construction, tunnel engineering, engineering geology, hydrogeology, expert witness services, waste management, and BIM-based geoinformatics. The company provides services spanning investigation, planning, construction supervision, and expert assessment across all HOAI phases. Subsidiaries include gbm Labor GmbH for laboratory analyses and GFP Ingenieurbüro for geotechnical and environmental planning in Duisburg.

Differentiator

Problem solved

Functional benefit

Products and services

• Erdbau und Grundbau und Spezialtiefbau (Earthworks, Foundation Engineering, and Special Underground Construction) Geotechnical investigations, construction soil assessment, foundation consulting, and special underground construction services including pile foundations, diaphragm walls, and ground improvement for construction and infrastructure projects.
• Geoinformatik (Geoinformatics) Digital geoinformatics services including GIS, 3D geological modeling, BIM planning, groundwater modeling, and drone-based surveying for construction site and geological assessments.
• Felsbau und Tunnelbau (Rock Engineering and Tunnel Construction) New tunnel construction, tunnel renovation, and rehabilitation services including geotechnical investigations, structural planning, and construction supervision for road and rail tunnels.
• Objektplanung und Fachplanung (Object and Specialist Planning) Object and specialist planning for infrastructure engineering structures including structural engineering, tunnel construction, special foundation engineering, and construction supervision services.
• Ingenieurgeologie und Hydrogeologie (Engineering Geology and Hydrogeology) Engineering geology and hydrogeology services including slope stability assessments, groundwater modeling, aquifer characterization, and field testing for construction projects.
• Gutachtertätigkeit und Sachverständigentätigkeit (Expert Witness and Specialist Assessment Services) Expert opinions and specialist assessments including geotechnical expert witness services, structural safety evaluations, and EBA-certified testing and approval services for infrastructure projects.
• Abfallmanagement (Waste Management) Waste management including waste classification, disposal organization, hazardous building material assessment, and contaminated site investigation and remediation.
• Lehre, Publikationen, Engagement (Academic Teaching, Publications, and Professional Engagement) Academic teaching, publications, and professional engagement including lectures at FH Karlsruhe and seminars for the Federal Railway Authority (EBA) on earth and tunnel construction.

Quantifiable outcome

• Tunnel condition assessment software used as standard evaluation tool across all 7 regional areas of DB Netz AG
• +2 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators2 records

Recent moves6 records

Expansion highlights7 records

Direct peers

• WSP (including Golder): Global engineering platform whose 2021 acquisition of Golder created the world's largest dedicated geotechnical consultancy. Overlaps directly with gbm on tunnel, rail, BIM-enabled subsurface, and contaminated-site work, but competes at much larger project scale.
• Fugro: Dutch-headquartered global leader in geotechnical site investigation, groundwater characterization, and geotechnical consulting. Direct overlap with gbm in subsurface investigation, FEM/groundwater modelling, and infrastructure owner services; differs by global scale and offshore/downstream oil & gas exposure.
• Dr. Spang Ingenieurgesellschaft: German specialist geotechnical and hydrological engineering consultancy with comparable service portfolio (site investigation, groundwater modelling, foundation and tunnel engineering, expert opinion work). Closest like-for-like mid-sized DACH peer to gbm.
• Lombardi Engineering Group: Swiss geotechnical, tunnel and hydrogeology consultancy with comparable Swiss/Cross-Alpine project footprint to gbm's Baugrundinstitut Schweiz subsidiary. Highly comparable in service mix (rock mechanics, tunnelling, hydrogeology) and similar specialized firm size.

Broad incumbents

• Arup: Global engineering consultancy with deep tunnelling, geotechnical and rail expertise. Overlaps with gbm on tunnel/rail expert witness, BIM and subsurface modelling but as part of a broader infrastructure, building and energy portfolio.
• Ramboll: Large Nordic engineering consultancy with a significant geotechnical, tunnel and rail practice across Northern Europe. Comparable services (site investigation, BIM, environmental) but ships as part of a much broader engineering portfolio.
• AFRY (formerly ÅF / Pöyry): European engineering consultancy with active geotechnical, rail and tunnel practices serving public infrastructure owners in Germany/Switzerland. Comparable on tunnelling and rail geotechnics, broader in industrial and energy infrastructure.
• Arcadis: Global design and consultancy firm with a sizable geotechnical, environment and rail practice in Germany/DACH. Overlaps on geotechnical site investigation, BIM, and contaminated-land work, but operates as a full multi-disciplinary platform.
• Tractebel (Engie): Belgian-headquartered engineering consultancy with strong geotechnical, tunnel and hydrogeology practices and active DACH presence. Overlaps directly with gbm on rail, tunnel and groundwater work but at much larger scale.

Emerging players

• Keller Group: World's largest specialist geotechnical contractor focused on foundations, ground improvement and earthworks; adjacent to gbm's Erdbau/Grundbau/Spezialtiefbau offering but executes as a contractor rather than as an engineering consultant/Prüfsachverständiger.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries2 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 gbm Gesellschaft für Baugeologie und -meßtechnik mbH - Baugrundinstitut