PraderLosinger
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.
- Company typePrivate
- Founded1925
- HeadquartersSion, Switzerland
- Headcount251–500
- GTM typeB2B
- OfferingServices
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.
PraderLosinger firmographics
Firmographics- 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
PraderLosinger industry classification
Industry- 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
Where PraderLosinger is headquartered
LocationHeadquarters
- HQ city
- Sion
- HQ country
- Switzerland
- HQ region
- Europe
Offices3 records
Markets served
PraderLosinger business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Infrastructure, Operations, Technology or R&D, Marketing or Sales
Revenue model
- 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
PraderLosinger product offering
Product offeringCore 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
Companies that use PraderLosinger
Customer profileNamed customers10 records
Segments3 records
Ideal customer profiles1 record
PraderLosinger technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
PraderLosinger partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core and minor.
- Cogeis SpAcoreConsortium partner for the Grand-Saint-Bernard Tunnel modernization project (2023-2026), involving demolition and replacement of the intermediate slab.
- Walpen AGcoreConsortium partner (30% share) for the Tunnel de Lachat renovation project (2020), involving railway tunnel rehabilitation for improved passenger safety.
- Rhomberg Bau AGcoreConsortium 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 AGminorConsortium partner (15% share) for the Simplon Tunnel renovation project
- Dénériaz SAminorConsortium partner (7.5% share) for the Simplon Tunnel renovation project
- Evequoz SAminorConsortium partner (7.5% share) for the Simplon Tunnel renovation project
- Volken AGcoreConsortium partner for the Grand-Saint-Bernard Tunnel modernization project (2023-2026)
- GVH-Sollertia-BGcoreEngineering consortium for the CFF bridge over the Vièze river project (2023-2026)
- Camandona SAminorProject partner for CFF bridge construction over the Vièze river
- Epiney Construction SAminorProject partner for CFF bridge construction over the Vièze river
- Amberg Engineering AGcoreEngineering and works direction for the Riedberg Tunnel project (2017-2025)
Scale indicators3 records
Recent moves8 records
Expansion highlights5 records
PraderLosinger competitors and assessment
Company assessmentDirect 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
PraderLosinger social profiles
Digital presencePraderLosinger financial estimates
Financial estimateRevenue estimate
Valuation estimate
PraderLosinger leadership team
Management profileNumber of profiles
Profiles4 records
PraderLosinger funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
PraderLosinger M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about PraderLosinger
What does PraderLosinger do?
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.
Is PraderLosinger a public or private company?
PraderLosinger is a private company. It is classified as corporate owned and is currently operating.
When was PraderLosinger founded?
PraderLosinger was founded in 1925. It employs 251 to 500 people.
Where is PraderLosinger based?
PraderLosinger is headquartered in Sion, Switzerland, in the Europe region.
How does PraderLosinger make money?
One revenue line is on record: construction Project Revenue.
Who are PraderLosinger's main competitors?
Direct peers on record are Marti Group, Rhomberg Bau AG, Frutiger AG, Walo Bertschinger AG, Ulrich Imboden AG, Dénériaz SA, Evequoz SA and Walpen AG. Broad incumbents are Implenia AG and Bouygues Construction.
Does PraderLosinger have an API?
No public API is recorded for PraderLosinger.
What industry is PraderLosinger in?
PraderLosinger's product category is Civil Engineering & Infrastructure Construction. Its primary akta.pro industry code is IMAFAAAG, Public Works General Contracting, with a secondary code of IMAFAKAI, Temporary Works & Shoring (Sheeting, Bracing, Cofferdams). Its NAICS code is 23891 and its SIC code is 1600.