PraderLosinger

What PraderLosinger does

PraderLosinger SA is a Valais-based Swiss construction firm founded in 1925 and currently organized under four operational domains: Travaux souterrains (Underground Works — road, highway, railway tunnels and galleries), Génie civil (Civil Engineering — roads, bridges, railways, energy and industrial infrastructure), Travaux spéciaux (Special Works — sheet pile driving, watertight excavation enclosures, groundwater table lowering), and Électromécanique (Electromechanical Services — low/high-voltage installations, switchboards, automation, lighting/heating/ventilation, water treatment, and custom metal fabrication). Technically, the company operates specialized equipment including vibrofoncers, high-performance piling hammers and adapted dewatering pumps for complex Alpine geotechnical conditions, and maintains an in-house technical bureau for design support and works direction. Its core technology base is therefore heavy-craft and equipment-driven rather than digital.

The company serves primarily public-sector and regulated-infrastructure clients in French-speaking Switzerland, anchored by Canton du Valais, CFF (Swiss Federal Railways), Swissgrid, communes in Valais (Sion, Crans-Montana, Champéry, Fully), industrial counterparties in chemical and energy (CIMO, OIKEN), and infrastructure concession holders such as TGSB SA (Grand-Saint-Bernard). The revenue model is one-time, project-based construction contracting: PraderLosinger acquires work via direct negotiation, public tenders, and consortium arrangements with engineering firms and peer contractors (e.g., Rhomberg Bau, Walpen, Cogeis, Volken) for major tunnel and railway rehabilitation programs. Pricing is not publicly disclosed and is set per project based on scope, complexity, materials and duration.

PraderLosinger SA was created in 2004 through the merger of Prader AG and Losinger Sion SA, both of which had been acquired by French conglomerate Bouygues SA in 1991; the entity therefore operates as a wholly-owned subsidiary within the Bouygues group, retaining its own management (Director Marc Bocqueraz, Deputy Director Pierre-André Michelet) and Valais-based regional agencies in Massongex and Vétroz. Headcount is 251–500 employees and revenue is not publicly disclosed. The company holds ISO 9001, ISO 14001 and ISO 45001 certifications, the Entreprise Citoyenne label, and the Entreprise Formatrice vocational-training label.

Name

PraderLosinger

Legal name

PraderLosinger SA

Website

https://praderlosinger.ch

Company type

Private

Founded year

1925

Operating status

Operating

Headcount range

251–500 employees

Short description

PraderLosinger SA is a Sion-based Swiss construction firm (founded 1925, 251–500 employees, wholly-owned by Bouygues SA) that delivers underground works, civil engineering, special works and electromechanical services for cantonal, municipal, railway and industrial clients across French-speaking Switzerland.

Ownership category

akta.pro rank

Product category

Civil Engineering & Infrastructure Construction

NAICS

Site Preparation Contractors (23891), Nonresidential Building Construction (2362)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Construction - Special Trade Contractors (1700)

akta.pro primary industry

Public Works General Contracting (IMAFAAAG)

akta.pro secondary industry

Temporary Works & Shoring (Sheeting, Bracing, Cofferdams) (IMAFAKAI)

Keywords

• Underground construction works
• Civil engineering services
• Tunnel construction renovation
• Electromechanical installations
• Ground stabilization works

Headquarters

HQ city

Sion

HQ country

Switzerland

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction Project Revenue: PraderLosinger generates revenue through one-time project-based construction contracts for underground works (tunnels, galleries), civil engineering (roads, railways, bridges), special works (pile driving, waterproofing, dewatering), and electromechanical services. Projects range from new construction to renovation and rehabilitation of existing infrastructure.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

PraderLosinger SA is a Swiss construction company that delivers infrastructure projects across four operational domains: underground works (tunnel construction and renovation), civil engineering (roads, railways, bridges, energy and industrial infrastructure), special works (pile driving, watertight excavation enclosures, groundwater lowering for terrain stabilization), and electro-mechanical services (electrical installations, switchboards, automation, and metal fabrication). The company targets government entities, transportation and energy operators, and industrial clients primarily in French-speaking Switzerland.

Product overview

PraderLosinger SA is a Swiss construction company founded in 1925, offering specialized services organized across four distinct operational domains: Travaux souterrains (Underground Works), Génie civil (Civil Engineering), Travaux spéciaux (Special Works), and Service d'électromécanique (Electro-mechanical Services). The company operates as a service-oriented construction firm rather than a software platform, delivering infrastructure projects for transport (tunnels, bridges, railways, roads), energy (hydroelectric facilities, electrical substations, district heating), and industrial clients throughout French-speaking Switzerland.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• 100 years of continuous operation and project delivery since 1925
• +1 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• Cogeis SpAcoreStrategic or Co-development Partner · 1 October 2023Consortium partner for the Grand-Saint-Bernard Tunnel modernization project (2023-2026), involving demolition and replacement of the intermediate slab.
• Walpen AGcoreStrategic or Co-development Partner · 1 January 2020Consortium partner (30% share) for the Tunnel de Lachat renovation project (2020), involving railway tunnel rehabilitation for improved passenger safety.
• Rhomberg Bau AGcoreStrategic or Co-development Partner · 1 March 2012Consortium partner (45% share) for the Simplon Tunnel renovation project (2012-2015), a major railway tunnel safety improvement and rehabilitation undertaking. The project involved renovation of both 20km tunnel tubes.
• Ulrich Imboden AGminorStrategic or Co-development PartnerConsortium partner (15% share) for the Simplon Tunnel renovation project
• Dénériaz SAminorStrategic or Co-development PartnerConsortium partner (7.5% share) for the Simplon Tunnel renovation project
• Evequoz SAminorStrategic or Co-development PartnerConsortium partner (7.5% share) for the Simplon Tunnel renovation project
• Volken AGcoreStrategic or Co-development PartnerConsortium partner for the Grand-Saint-Bernard Tunnel modernization project (2023-2026)
• GVH-Sollertia-BGcoreImplementation/ SI/ Consulting PartnerEngineering consortium for the CFF bridge over the Vièze river project (2023-2026)
• Camandona SAminorImplementation/ SI/ Consulting PartnerProject partner for CFF bridge construction over the Vièze river
• Epiney Construction SAminorImplementation/ SI/ Consulting PartnerProject partner for CFF bridge construction over the Vièze river
• Amberg Engineering AGcoreImplementation/ SI/ Consulting PartnerEngineering and works direction for the Riedberg Tunnel project (2017-2025)

Scale indicators3 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Marti Group: Swiss family-owned construction group with strong tunneling and civil engineering divisions; competes directly for Alpine infrastructure tenders and is a recognized specialist in underground works.
• Rhomberg Bau AG: Swiss construction firm specialized in civil engineering, tunneling, and railway infrastructure; was PraderLosinger's 45% consortium partner on the Simplon tunnel renovation (2012-2015). Directly comparable in scope, Alpine specialty, and customer base.
• Frutiger AG: Swiss construction company active in civil engineering, tunneling, and special foundations; comparable mid-sized peer serving similar public and private clients in French- and German-speaking Switzerland.
• Walo Bertschinger AG: Long-established Swiss civil engineering and construction contractor; competes on infrastructure, road, and tunneling projects across Switzerland with comparable customer mix of public and private clients.
• Ulrich Imboden AG: Valais-based construction company specializing in civil engineering and underground works; was PraderLosinger's 15% consortium partner on the Simplon tunnel and competes for similar Alpine projects.
• Dénériaz SA: Swiss construction firm active in civil engineering and tunneling; Simplon tunnel consortium partner (7.5% share), serving the same Western Swiss public-sector customer base.
• Evequoz SA: Valais-based construction and civil engineering company; also a Simplon tunnel consortium partner (7.5% share) with overlapping specialty in underground and infrastructure works.
• Walpen AG: Swiss construction firm involved in tunneling and civil engineering; was PraderLosinger's 30% consortium partner on the Tunnel de Lachat renovation (2020), with comparable project profile.

Broad incumbents

• Implenia AG: Switzerland's largest construction and real-estate services company, active in tunneling, civil engineering, and buildings across the country. Broad incumbent with overlapping capabilities in underground works and infrastructure, but at significantly larger scale.
• Bouygues Construction: French parent-group construction arm of Bouygues SA, the ultimate owner of PraderLosinger. Operates globally across civil engineering, building, and energy infrastructure; comparable in capabilities though far broader in scope and geography than PraderLosinger.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks4 records

Key highlights7 records

Customer concentration

• Xlinkedin.com/company/praderlosinger-sa
• YouTubeyoutube.com/watch?v=SQ7wwdWKhRc
• LinkedInlinkedin.com/company/praderlosinger-sa

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 PraderLosinger