What Implenia Spezialtiefbau GmbH - Spezialtiefbau does

Implenia Spezialtiefbau GmbH is the German legal entity of the Implenia AG Spezialtiefbau (Special Foundations) division, headquartered in Hamburg, Germany, and part of the publicly listed Implenia Group (SIX Swiss Exchange: IMPN) based in Glattpark (Opfikon), Switzerland. The division delivers complete foundation engineering solutions — excavation pits (Baugruben), earth retention structures (Stützbauwerke), deep foundations (Tiefgründungen), and noise barriers (Lärmschutzwände) — from planning through execution, with capabilities spanning bored piles (up to 1,200mm diameter), diaphragm wall construction (Schlitzwandbauweise) using modified rope excavators for confined working heights, micropiles, ground anchors, ground improvement (jet grouting, ground freezing), and the proprietary "bergmännische Deckelbauweise" (mining-style top-down construction method) pioneered on the Durchmesserlinie Zürich project. The division operates an in-house engineering office, a self-developed machinery fleet, and proprietary measurement and monitoring technology, combining approximately 160 years of group construction heritage with continuous process and equipment innovation.

The business operates on a project-based, B2B/enterprise/government sales model, with services won through competitive tendering and consortium (ARGE) arrangements. Pricing is per-project, structured as lump-sum or cost-plus contracts with multi-year billing cadences, and no standardized public pricing exists. The division serves four primary customer segments: infrastructure developers and general contractors, real estate developers (notably high-rise), railway operators and authorities (SBB, SYTRAL), and government transportation agencies (ASTRA, municipalities). Reference projects include the foundation pit for Roche Bau 2 (Switzerland's tallest building at 205m, ARGE with BAUER Schweiz AG at 75% share), the SYTRAL Lyon Metro Line B extension (ARGE with DEMATHIEU BARD, 2.5km TBM tunnel with variable density through permeable alluvium), the ASTRA Einhausung Schwamendingen (940m noise protection tunnel), and multiple SBB Immobilien developments. Revenue is reported only at the Implenia AG group level (CHF 3,475M in FY2025 with a CHF 8,467M order backlog); the standalone German GmbH has 34 employees.

Name

Implenia Spezialtiefbau GmbH - Spezialtiefbau

Legal name

Implenia AG

Website

https://spezialtiefbau.implenia.com

Company type

Public

Founded year

2006

Operating status

Operating

Headcount range

11–50 employees

Short description

Implenia Spezialtiefbau GmbH is the German subsidiary of Swiss-listed Implenia AG, providing specialized foundation engineering — excavation pits, deep foundations, diaphragm walls, and noise barriers — for infrastructure, rail, and high-rise construction projects across Europe, delivered through proprietary methods and consortium partnerships.

Ownership category

akta.pro rank

Product category

Special Foundation Engineering (Geotechnical Construction Services)

NAICS

Engineering Services (541330)

akta.pro primary industry

Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations) (EUAEADAA)

Keywords

• Special foundation engineering
• Geotechnical construction services
• Deep foundation solutions
• Excavation pit construction
• Retaining wall systems

Headquarters

HQ city

Glattpark (Opfikon)

HQ country

Switzerland

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction Services Revenue: Project-based revenue from specialized foundation construction services including excavation pits, retaining structures, deep foundations, and noise barriers. Revenue is earned through lump-sum contracts, cost-plus arrangements, and consortium partnerships on major infrastructure projects. The division operates as part of the broader Implenia Group infrastructure segment.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Implenia Spezialtiefbau GmbH is the German subsidiary of Implenia AG specializing in special foundation engineering (Spezialtiefbau). The company delivers geotechnical construction services including excavation pits, retaining structures, deep foundations, and noise barriers for infrastructure, real estate, and public-sector clients. It applies methods such as diaphragm walls, bored piles, micropiles, and ground anchors, alongside proprietary system solutions including the Suction Dredger, UHFB, and HS-EPS.

Product overview

Implenia Spezialtiefbau is the specialized foundation engineering division of Implenia AG, operating as an integrated construction services provider offering complete solutions for excavation pits (Baugruben), earth retention structures (Stützbauwerke), deep foundations (Tiefgründungen), and noise barriers (Lärmschutzwände) from planning through execution. The company leverages specialized expertise in measurement technology, equipment technology, and technical offices combined with extensive operational experience. Their core offerings include diaphragm wall construction (Schlitzwandbauweise), pile walls (Pfahlwand), bored piles (Bohrpfähle), micropiles (Mikropfähle), ground anchors (Ankertechnik), and earthworks (Erdarbeiten). They also operate system solutions including suction dredgers (Saugbagger) and advanced concrete technologies (UHFB and HS-EPS). The division maintains its own equipment fleet and conducts in-house development of facilities, equipment, and procedures.

Differentiator

Problem solved

Functional benefit

Products and services

• Excavation pit construction
• Retaining structures
• Deep foundations
• Noise barriers
• Diaphragm wall construction
• Bored pile construction
• Micropile construction
• Ground anchor installation
• Suction Dredger system solution
• UHFB (Ultra-High Performance Fiber Reinforced Concrete) system solution
• HS-EPS (High-Strength Expanded Polystyrene) system solution

Quantifiable outcome

• Completed pioneering projects including first-ever 'bergmännische Deckelbauweise' (top-down construction method) worldwide for Durchmesserlinie Zürich
• +1 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core and minor.

• BAUER Schweiz AGcoreStrategic or Co-development PartnerJoint venture partnership (ARGE Roche Bau 02) for foundation construction of Roche Bau 2, the tallest building in Switzerland. Implenia held 75% share and technical leadership of the consortium. Partnership for bored pile wall construction with 1,200mm diameter piles.
• DEMATHIEU BARDcoreStrategic or Co-development PartnerConsortium partner (ARGE IMPLENIA France - DEMATHIEU BARD - IMPLENIA Schweiz) for Lyon Metro Line B extension project. Partnership involves complex TBM tunneling with variable density through permeable alluvium geology.
• zigmo engineeringminorStrategic or Co-development PartnerGeneral planning partner (Generalplanung) integrated into Implenia's service offerings, particularly for German market projects.
• SBB ImmobiliencoreStrategic or Co-development PartnerLong-term partnership with Swiss Federal Railways real estate division for multiple construction projects including Andreasturm Zürich-Oerlikon, Pont Rouge, and Central Malley developments.
• ICASminorOthersExternal counseling center providing mental health support services to Implenia employees as part of occupational health management program.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• BAUER AG: German-headquartered specialist foundation engineering company offering bored piles, diaphragm walls, anchors, and ground improvement — Implenia Spezialtiefbau's most direct competitor and an active joint venture partner on the Roche Bau 2 consortium.
• Trevi Group: Italian geotechnical engineering group specializing in foundations, soil consolidation, and underground works — comparable in scope and pan-European footprint, often competing for the same complex urban foundation tenders.
• Soletanche Bachy: Vinci Construction's global foundation specialist offering diaphragm walls, bored piles, micropiles, and ground improvement — overlapping service portfolio and similar blue-chip public/private client base across European infrastructure projects.
• Ed. Züblin AG: STRABAG subsidiary active in tunneling, special foundations, and civil engineering across DACH — directly comparable in bored pile, diaphragm wall, and underpinning services for major German and Swiss infrastructure projects.
• Menard: Bachy Soletanche Group subsidiary focused on ground improvement and soil reinforcement — comparable niche offering within the foundation engineering value chain that Implenia Spezialtiefbau addresses.
• Keller Group plc: UK-listed global geotechnical contractor providing piling, ground improvement, and specialty foundation services — directly comparable in product mix (bored piles, diaphragm walls, ground anchors) and customer base of infrastructure and real estate developers.

Broad incumbents

• Hochtief AG: German-listed major construction group (ACS subsidiary) active across building, civil, and infrastructure projects in Europe, the Americas, and Asia-Pacific — broader portfolio but overlapping with Implenia Spezialtiefbau on complex foundation/civil scopes.
• STRABAG SE: Austrian-headquartered, publicly listed construction group covering transportation infrastructure, building construction, and civil engineering across Europe — broader portfolio than Implenia Spezialtiefbau but overlapping on tunneling and foundation scope.
• Skanska AB: Swedish-listed global construction and project development group with significant civil engineering and infrastructure operations in the Nordics, UK, and US — comparable as a large incumbent delivering complex public infrastructure projects.

Regional players

• NCC AB: Nordic construction and property development company with infrastructure, building, and ground engineering operations concentrated in Sweden, Norway, Finland, and Denmark — comparable in special foundations and civil engineering but focused on the Nordic market rather than DACH.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/impleniatweet
• YouTubeyoutube.com/ImpleniaTube
• Facebookfacebook.com/implenia
• LinkedInlinkedin.com/company/implenia-spezialtiefbau-gmbh---spezialtiefbau
• Instagraminstagram.com/impleniagram
• TikToktiktok.com/@implenia

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Implenia Spezialtiefbau GmbH - Spezialtiefbau