Soletanche Freyssinet

What Soletanche Freyssinet does

Soletanche Freyssinet is a French specialty construction and engineering group operating as a wholly-owned subsidiary of VINCI Construction, with headquarters in Rueil-Malmaison, France, and 10,000+ employees. The group is organized into six subsidiary brands — Soletanche Bachy (soil engineering and foundations), Menard (ground improvement), Geoquest (reinforced earth and retaining structures), Freyssinet (structural engineering, post-tensioning, cable-stayed systems), Nuvia (nuclear services), and Sixense (digital monitoring) — delivering four core business activities: Soils, Structures, Nuclear, and Digital. Technical capabilities rest on proprietary methods such as Reinforced Earth® walls (Terre Armée), underground cut-off walls for dam integrity, underwater nuclear diving operations for decontamination and dismantling, cable-stayed roof systems for large stadiums, and digital sensor-based monitoring for infrastructure.

The company's go-to-market is enterprise field sales and project-based engagement with government and large infrastructure clients, including agencies such as the U.S. Army Corps of Engineers, the City of Paris, and nuclear power operators across at least 17 countries. Revenue is generated through custom-quoted specialty construction contracts, long-term maintenance engagements, and engineering services, with no public pricing disclosure. The group maintains a global footprint across Europe, North America, South Asia, Southeast Asia, and Eastern Europe, and continues to extend capabilities through targeted acquisitions (Marsein in 2025; Carpi and ConeTec in 2017) and the build-out of its Sixense digital vertical.

Name

Soletanche Freyssinet

Legal name

Soletanche Freyssinet

Website

https://soletanchefreyssinet.com

Company type

Private

Founded year

1956

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Soletanche Freyssinet is a French specialty construction and engineering group, wholly-owned by VINCI Construction, delivering foundation, structural, nuclear, and digital-monitoring services through six subsidiary brands for government and enterprise infrastructure clients globally.

Ownership category

akta.pro rank

Product category

Specialty Construction and Engineering

NAICS

Foundation, Structure, and Building Exterior Contractors (2381), Nonresidential Building Construction (2362)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Piling & Deep Foundations (Driven, Bored, CFA, Micropiles) (IMAFAOAA)

Keywords

• Specialty construction services
• Geotechnical engineering solutions
• Foundation engineering services
• Nuclear engineering services
• Structural engineering solutions

Headquarters

HQ city

Rueil-malmaison

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Specialty Construction Services: Project-based specialty construction services for soil improvement, structural repair, nuclear services, and digital engineering. Revenue generated through long-term infrastructure projects, maintenance contracts, and engineering services.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Soletanche Freyssinet is a specialty construction and engineering group that delivers soil, structural, nuclear, and digital engineering services through six subsidiary brands. The group builds foundations, improves ground conditions, executes structural repair and cable-stayed roof systems, provides nuclear diving, decontamination and decommissioning services, and offers digital monitoring and instrumentation for infrastructure projects worldwide.

Product overview

Soletanche Freyssinet operates as a unified construction and engineering group offering specialized services through six subsidiary brands organized into four core business activities: Soils (Soletanche Bachy, Menard, Geoquest), Structures (Geoquest, Freyssinet), Nuclear (Nuvia), and Digital (Sixense). The group functions as an integrated specialty construction platform rather than a single product, delivering technical excellence across foundation engineering, structural work, nuclear services, and digital monitoring solutions for infrastructure projects worldwide.

Differentiator

Problem solved

Functional benefit

Brands

• Soletanche Bachy: Soil engineering, foundation construction, and geotechnical works subsidiary
• Menard
• Geoquest
• Freyssinet
• Nuvia
• Sixense

Quantifiable outcome

• Processed over 100 tonnes of stainless-steel scrap immersed in alpha-contaminated environment for nuclear fuel pool dismantling
• +1 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles3 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Two partnerships are on record, tiered core and acquisition.

• VINCI ConstructioncoreStrategic or Co-development Partner · 4 November 2025Soletanche Freyssinet is a subsidiary of VINCI Construction, which strengthens the group's position in the global nuclear services market. Nuvia, a Soletanche Freyssinet subsidiary, operates as part of VINCI Construction's portfolio, providing nuclear services across 17 countries in nuclear energy, defense, nuclear medicine, and environmental sectors.
• MarseinacquisitionOthers · 4 November 2025Nuvia (subsidiary of Soletanche Freyssinet, part of VINCI Construction) acquired Marsein, a long-established Spanish nuclear services company with nearly 40 years of experience. Marsein provides maintenance, decontamination, radiological protection, and decommissioning services across Spain's nuclear facilities.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Emerging players

• AECOM: Global engineering, design, and construction services firm with infrastructure and nuclear-adjacent project work. Comparable in scope of professional engineering services and infrastructure project delivery, overlapping with Sixense and Freyssinet design activities.
• Arcadis NV: Dutch design, engineering, and consulting firm with significant infrastructure and water/dam engineering practices. Comparable in engineering services overlap and infrastructure monitoring/digital capabilities adjacent to Sixense.

Direct peers

• Bauer AG: German foundation specialist providing piling, diaphragm walls, ground improvement, and specialist foundation engineering. Directly comparable to Soletanche Bachy's core piling and cut-off wall offerings across global infrastructure projects.
• Keller Group plc: UK-listed global geotechnical and ground engineering specialist offering piling, ground improvement, and foundation services. Most direct competitor to Soletanche Bachy and Menard with comparable specialty foundation scope and similar government/infrastructure client mix.
• Trevi Group: Italian specialty contractor focused on geotechnical engineering, foundation works, and underground construction. Comparable niche positioning to Soletanche Bachy/Menard with similar dam, bridge, and infrastructure customer base.

Broad incumbents

• Skanska AB: Swedish multinational construction and infrastructure developer active across civil engineering, transportation, and energy infrastructure. Comparable broad incumbent competing for the same stadium, bridge, and nuclear-adjacent infrastructure scopes.
• NCC AB: Nordic diversified construction group covering civil infrastructure, foundation works, and building projects. Comparable European specialty and general infrastructure peer with overlapping foundation and ground engineering scope.
• Strabag SE: Austrian-headquartered European construction group with significant geotechnical, tunneling, and infrastructure work. Comparable scale and customer base across European public infrastructure tenders.
• Bouygues Construction: French diversified construction group covering buildings, civil works, and energy infrastructure. Comparable broad incumbent in the same geography offering competing bids on large nonresidential and infrastructure projects.
• VINCI Construction: Parent entity and broader French construction incumbent operating across civil engineering, building, and concessions. Provides group-level context for Soletanche Freyssinet's positioning within the broader construction value chain.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCN7TUj5G8DNQeoG2ry0vdHA
• Facebookfacebook.com/soletanchefreyssinet.group
• LinkedInlinkedin.com/company/soletanche-freyssinet
• Instagraminstagram.com/soletanchefreyssinetgroup
• Xx.com/soletanchef

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries6 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 Soletanche Freyssinet