Perreten & Milleret Sa

What Perreten & Milleret Sa does

Perreten & Milleret SA is a Geneva-based Swiss consulting engineering firm founded in 1955 and headquartered in Carouge, Switzerland. The firm delivers multidisciplinary engineering services across four core sectors: structural and civil engineering (concrete, steel, wood, bridges, roads, underground structures), environmental engineering (asbestos/PCB/PAH/lead diagnostics, decontamination, ground pollution assessment, life cycle assessments), geotechnical engineering (soil and rock analysis, foundation design, waterproofing and drainage), and since 2022, Conseil Maître d'Ouvrage (owner's representative and AMO advisory). Services span the full project lifecycle — feasibility studies, preliminary design, final project, tendering, and site supervision — for cantonal and municipal government agencies, public transport and hospital authorities, and private developers in the Geneva region and broader Switzerland.

The firm operates with approximately 40 staff, including 14 civil engineers, 5 environmental engineers, 10 draughtsmen, 3 site supervisors, and 3 managing partners, supported by an OFPC-certified apprenticeship program. Technical differentiators include seismic design per SIA standards, concrete carbonation assessment (the subject of co-authored research by partner Erik Langlo), hazardous material detection under ASCA certification, and ISO 9001 (since 1997) and ISO 14001 (since 2003) certifications. Notable project references include CERN building extensions, UEFA headquarters in Nyon, the Patek Philippe manufacture at Plan-les-Ouates, the ALLIANZ Suisse headquarters conversion, Geneva University Hospitals (HUG) maternity projects, TPG tram/bus maintenance depot, MSC Mediterranean Shipping Company offices, and the CEVA Lot 6 Eaux-Vives railway station and tunnel.

Revenue is generated through professional services fees on a project-by-project basis, with no public pricing disclosed. The firm is a privately held Swiss Société Anonyme owned by its four associates (Erik Langlo, Julien Treleani, Marc Lachenal, and Philippe Edder as of December 2023), with no external investors or parent company. Go-to-market is sales-led and reputation-based, leveraging 67+ years of track record, EPFL/ETH-educated partners, ASCA-certified specialists, and a portfolio of marquee projects concentrated in the Geneva regional market. The firm maintains no digital platform, public API, or disclosed AI/ML capabilities.

Name

Perreten & Milleret Sa

Legal name

Perreten & Milleret SA

Website

https://pmsa.ch

Company type

Private

Founded year

1955

Operating status

Operating

Headcount range

11–50 employees

Short description

Perreten & Milleret SA is a Geneva-based Swiss consulting engineering firm, founded in 1955, providing structural, environmental, geotechnical, and owner's representative services across the full project lifecycle to public agencies and private developers in the Geneva region.

Ownership category

akta.pro rank

Product category

Civil Engineering Consulting

NAICS

Engineering Services (541330), Environmental Consulting Services (54162)

SIC

Services-Engineering Services (8711)

akta.pro industry

PRIMARYBPAHAIAA

Civil & Structural Engineering Consulting

Business & Public Services/Professional Services (Legal, Accounting, Consulting)/Engineering & Technical Consulting

SECONDARYBPAHACAK

Sustainability & ESG Consulting

Business & Public Services/Professional Services (Legal, Accounting, Consulting)/Management Consulting

Keywords

• Civil engineering consulting
• Structural engineering services
• Environmental engineering
• Geotechnical engineering
• Construction project management

Headquarters

HQ city

Carouge

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Others

Revenue model

1. Engineering Consulting Services: Professional consulting engineering services provided across the entire project lifecycle including identification and feasibility studies, preliminary design, final project, tendering, and site supervision. Services span structural engineering, civil engineering, geotechnical engineering, and environmental engineering.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Perreten & Milleret SA provides consulting engineering services across the full project lifecycle — from feasibility studies and preliminary design through detailed design, tendering, and site supervision — in four integrated sectors: structural/civil engineering, environmental engineering, geotechnical engineering, and owner's representative services (CMO/AMO). The firm serves public sector clients (municipalities, cantons, public transport, hospitals) and private developers across the Geneva region and Switzerland, delivering multidisciplinary expertise supported by ISO 9001 and ISO 14001 certifications.

Product overview

Perreten & Milleret SA is a consulting engineering firm offering comprehensive services across four core domains: structural and civil engineering, environmental engineering, geotechnical engineering, and owner's representative services (CMO/AMO). The firm provides a full project lifecycle service from initial consulting and feasibility studies through preliminary design, final projects, tendering, and site supervision. Specialized offerings include earthquake-resistant construction, concrete carbonation assessment, hazardous material detection, comprehensive building audits, demolition services, and recycled materials consulting. The company holds ISO 9001 and ISO 14001 certifications and operates from Carouge, Geneva.

Differentiator

Problem solved

Functional benefit

Products and services

• Structural and Civil Engineering Services Engineering services for structures including concrete, steel, wood and glass construction, building projects, bridges, roads, underground car parks and civil/railway engineering, including seismic analysis. Delivered to public agencies and private developers across Switzerland.
• Environmental Engineering Services Environmental specialist services including asbestos/PCB/PAH/lead diagnosis, decontamination planning and monitoring, ground pollution assessment, solid waste management, on-site environmental monitoring, energy audits, life cycle assessments, and wastewater management. Serves property owners, developers and public clients requiring environmental compliance for construction projects.
• Geotechnical Engineering Services Geotechnical engineering services covering soil and rock property analysis, stability and durability studies, foundation design, earthwork, waterproofing, drainage, and groundwater management. Aimed at construction projects on complex urban sites requiring soil-structure interaction analysis.
• Owner's Representative Services (Conseil Maître d'Ouvrage - CMO) Owner's Representative and Assistance (CMO/AMO) services including project strategy and governance, project definition, financial management, project organization, schedule and quality control, and agile iterative front-end phases. Serves public and private project owners who need an independent advisor across the project lifecycle.
• Detection of Dangerous Substances Identification and assessment of hazardous materials including asbestos, polychlorinated biphenyls (PCB), polycyclic aromatic hydrocarbons (PAH) and lead in existing buildings, with diagnosis reports and remediation planning performed by ASCA-certified staff. For property owners, renovators and demolition clients needing Swiss-legislative compliance.
• Comprehensive Building Audits Global building audit services including pollutant detection, structural rehabilitation diagnosis, carbonation assessments, static compliance checks, thermal envelope quality, and life cycle assessment of construction materials. For owners and managers needing a single integrated condition report on existing buildings.
• Demolition Services Demolition consulting including dangerous material assessment, demolition permit applications, feasibility studies for material recovery, site waste management plans, tendering, demolition monitoring, and final reports. For project owners and contractors executing demolition of existing buildings.
• Earthquake Resistant Construction Seismic engineering services including structural calculations, design of earthquake-resistant structures, secondary element securing, and construction detailing per Swiss SIA construction standards. For public and private clients needing seismic verification of new and existing buildings.
• Concrete Carbonation Assessment Analysis of concrete carbonation effects on reinforcement corrosion, preventive measures, monitoring of concrete pouring, and bar cover recommendations. For building owners and managers dealing with facade degradation from air pollution and de-icing salts.
• Recycled Materials Consulting Advisory services for incorporating recycled materials in construction, including stabilized excavated materials, recycled gravel for road sub-base, and recycled mineral materials for concrete and asphalt. For developers and contractors pursuing sustainable construction practices.

Quantifiable outcome

• 67+ years of continuous operation since 1955 with sustained business development
• +1 more outcomes

Named customers12 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• SIA – Société suisse des ingénieurs et des architectescoreOthersProfessional membership in Swiss Society of Engineers and Architects for standards, professional development, and industry networking.
• USIC – Union Suisse des Ingénieurs-ConseilscoreOthersMembership in Swiss Union of Consulting Engineers for industry representation and professional interests.
• AGI – Association Genevoise des IngénieurscoreOthersLocal Geneva association of engineers for professional networking and industry representation in the Geneva region.
• VSS – Association suisse des professionnels de la route et des transportsminorOthersMembership for road and transport engineering standards and best practices.
• AIPC – Association Internationale des Ponts et CharpentesminorOthersInternational Association of Bridge and Structural Engineering for knowledge sharing and technical advancement.
• ASCA – Association suisse des consultants en amiantecoreOthersMembership in Swiss Association of Asbestos Consultants. Staff members are ASCA-certified for asbestos detection services.
• VSA – Association suisse des professionnels de la protection des eauxminorOthersSwiss Association for Water Protection professionals for environmental engineering standards.
• ARPEA – Association romande pour la protection des eaux et de l'airminorOthersRomandie association for water and air protection, representing environmental engineering interests in French-speaking Switzerland.
• ASEP – Association suisse des professionnels de l'environnementminorOthersSwiss association of environmental professionals for environmental engineering standards and best practices.

Scale indicators3 records

Recent moves18 records

Expansion highlights5 records

Broad incumbents

• Basler & Hofmann: Major Swiss engineering firm with broad structural, civil, environmental, and planning practices across German- and French-speaking Switzerland. Comparable in services portfolio but significantly larger and more diversified as an incumbent competitor for public tenders.
• AFRY (formerly Pöyry): Global engineering and design consultancy with Swiss presence providing infrastructure, environmental, and energy services. Comparable as a broader incumbent competing for the same Swiss public infrastructure and environmental mandates at greater scale.
• Arup: Global engineering consultancy with deep structural, civil, and sustainability practices active in Switzerland on major infrastructure and buildings. Comparable as a global incumbent whose Swiss engagements compete with PMSA on flagship structural work.
• WSP in Switzerland: Global professional services firm with Swiss structural, civil, and environmental engineering practices. Comparable for overlap in buildings, transit, and environmental engineering services, though operating at vastly greater scale.

Direct peers

• Holinger AG: Swiss engineering consultancy focused on water, environment, infrastructure, and buildings, with deep environmental diagnostics and remediation capabilities. Comparable for the environmental engineering services component of PMSA's portfolio.
• CSD Ingénieurs SA: Swiss engineering firm with strong environmental, geotechnical, and infrastructure practices across multiple cantons including Geneva. Comparable for overlap in environmental engineering, geotechnics, and infrastructure project delivery.
• Lombardi SA: Swiss engineering consultancy specializing in structural, civil, and geotechnical engineering with strong tunneling and infrastructure credentials. Directly comparable for project portfolio overlap, though larger in scale and global footprint.
• T-Ingénierie SA: Geneva-based structural and civil engineering consulting firm with comparable size and scope across buildings, infrastructure, and environmental projects. Directly comparable as a mid-sized Geneva structural engineering consultancy serving public and private clients.
• INGPHI SA: Lausanne-based structural engineering consultancy known for complex buildings and bridges in French-speaking Switzerland. Directly comparable as a peer-sized Swiss Romandie structural engineering firm working on cultural, institutional, and infrastructure projects.

Regional players

• Norconsult: Nordic multidisciplinary engineering consultancy with growing European presence. Comparable as a peer in the European multi-disciplinary engineering services space, though operating in different primary geographies.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/perreten-&-milleret-sa

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Perreten & Milleret Sa