Technical Consulting & Engineering in
Sion

77 companies in Technical Consulting & Engineering based in Sion — name and year of registration from the commercial register.

Companies

50 of 77 companies

Serge Frochot & Daniel Pi, Bureau d'Ingénieurs Civils

Since 1978

Civil engineeringStructures and fire protectionWater management

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Transportplan Sion SA

Since 1986

Soft mobility and public transportTraffic and parkingUrban development and civil engineering

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Bureau d'Etudes Impact SA

Since 1986

Environmental studies and consultingEnvironmental monitoring of construction sitesEnvironmental management for major projects

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Phitronic SA

Since 1987

Business matchmaking and international business developmentPrivate or public business representationEstablishing links and access to administrations and states

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Sigma Ingénierie et Maintenance SA

Since 1989

Engineering of building services installationsEnergy concepts and optimisation of energy efficiencyMaintenance of building services installations

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CSD Ingénieurs SA

Since 1992

Real estate, building engineering, civil engineering works of art and road and rail infrastructureEnergy efficiency and renewable energiesBiodiversity

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Géoval Ingénieurs-Géologues SA

Since 1992

GeotechnicsNatural hazardsHydrogeology

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Arcalpin, Thomas Ammann

Since 1999

Land use planning & construction lawRegional development & rural areasProject management & resource management

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Geosat SA

Since 2001

Official land surveyingTechnical surveying and geodetic monitoring3D mapping and laser surveys

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BPA Ingénieurs conseils Sàrl

Since 2004

Civil engineeringSeismic assessments and seismic strengtheningSpecial foundation and retaining works

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Enerconseil Sion SA

Since 2005

Energy consulting and energy rationalisationBuilding physics and acoustic comfortEnergy concept and renovations

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Ingénieur-conseils en électricité Yves Roduit Sàrl

Since 2006

Building electrical engineeringElectrical installation expertise and auditsStrong current

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Protech - Léger Laurent

Since 2008

Electrical studiesPhotovoltaic installationsRefrigeration technology and maturation

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VHTechnic Sàrl

Since 2011

Energy Consulting and Energy AssessmentsHeating Design and Technical SupportVentilation and Air-Conditioning Design

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Physeos SA

Since 2011

Building physicsbSol® professional toolsTraining

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aquaTech Services SA

Since 2011

Potable Water ManagementSelf-monitoring HACCP conceptDrinking Water Network Management

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K Energy Sàrl

Since 2014

CVSE engineering officeHeating studiesVentilation studies

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Ergitec Sàrl

Since 2016

Project study supportSupport to project managementConstruction economics consulting

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Sys-TechConcept Sàrl

Since 2018

VentilationAir conditioningMaintenance

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Aclimatech SA

Since 2018

Heating study servicesVentilation study servicesRefrigeration and air-conditioning study services

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Orbis360 SA

Since 2020

Mobile Mapping3D Web-PublishingDigital Twins

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Société de Contrôles SA

Since 2020

OIBT safety inspection of electrical installationsSafety inspection of heating installationsOIBT management and monitoring mandate

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Produbati Sàrl

Since 2021

Building pollutant diagnosticsSampling and analysis of pollutantsDecontamination site monitoring

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Emch+Berger SA Lausanne, succursale de Sion

Since 2021

InfrastructureBuilding construction worksEnergy and environment

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Skywatt SA

Since 2023

Photovoltaic installationSolar batteryCharging stations

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Lyseis GmbH

Since 2023

Engineering office for smart grid analysisAnalysis of smart meter data

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PROTECH - Ingénieurs-Conseils Sàrl

Since 2024

Electrical studiesPhotovoltaic installationsRefrigeration technology and maturation

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ELECTROSUR Sàrl

Since 2025

OIBT inspectionsElectrical studyEnergy study

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CAO-Concept Sàrl

Since 2017

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ARX Groupe SA

Since 2021

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COSFI SA

Since 2025

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geoformer igp AG

Since 2026

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sd ingénierie sion sa

Since 1964

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Betica SA

Since 1977

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Gapany Frères Ingénieurs E.P.F.Z.

Since 1978

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Ertec SA succursale de Sion

Since 1984

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Bureau de dessin technique, Schroeter et Evéquoz

Since 1986

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Paul Glassey Bureau d'ingénieurs SA

Since 1995

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Etude et Management de projets en géométrie et ingénierie - EMGI & Partenaires Sàrl

Since 1997

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PRIOD DAYER SARL

Since 2003

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Edmond SAUTHIER

Since 2004

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Lauener Georges

Since 2008

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W2B SA

Since 2010

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FGP Fugazza

Since 2010

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INTERNATIONAL MARITIME PROJECT MANAGEMENT S.A.

Since 2010

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Schibli-Tech

Since 2011

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Michelet Consulting

Since 2011

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DbonR Sàrl

Since 2015

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Sobali SA

Since 2015

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ARGYRIOS SIMOS DENIM ENGINEER CONSULTANT

Since 2016

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Technical Consulting & Engineering in Sion

77Technical Consulting & EngineeringCommercial register (Zefix) · as of September 23, 2026

2017Median year of registrationCommercial register (Zefix) · as of September 23, 2026

567in the Canton of ValaisCommercial register (Zefix) · as of September 23, 2026

15,543in SwitzerlandCommercial register (Zefix) · as of September 23, 2026

Locations

Technical Consulting & Engineering in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of September 23, 2026

Largest places

Martigny48 Visp31 Sierre30 Monthey30 Collombey16 Brig13 Crans-Montana11 Fully11 Glis9 Zermatt9

Industry axis

Technical Consulting & Engineering in other places

Technical Consulting & Engineering across Switzerland

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Place axis

Other industries in Sion

All companies in Sion

Real Estate Project Development381 Holding Companies321 Property Management212 Restaurants206 Real Estate Brokerage200 Architecture Firms116 IT Consulting & Services97 Management Consulting93 Fiduciary Offices79 Software Development74 General Contractors66 Advertising Agencies66 Automotive & Vehicle Trade59 Auto Repair Shops57 NGOs & NPOs54 Trade Fair & Event Organizers51 Hair Salons49 Financial Services42 Other Service Industries41 Facility Management & Cleaning41 Clubs, Bars & Event Venues40 Research & Development39 Coaching & Personal Development38 Plumbing & Building Services38 Building Maintenance36 Electrical Planning & Installation36 Retail - Textiles & Clothing36 Cultural & Educational Organizations35 Psychiatry & Psychotherapy35 Online Shops35 Construction & Project Management34 Logistics & Transport Companies34 Physiotherapy33 Recruitment & HR Consulting30 Continuing Education Institutes30 Insurance Brokerage & Consulting29 Medical Technology Industry29 Administrative Services28 Building Construction28 Painting & Plastering28 Retail - Food & Luxury Items28 Interior Design & Furnishing27 Sports & Recreation Instruction27 External Asset Management27 Viticulture26 Wholesale - General Specialty Trade26 Hotels26 Civil Engineering Firms25

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Technical Consulting & Engineering inSion

50 of 77 companies

Technical Consulting & Engineering in the region

Technical Consulting & Engineering in other places

Other industries in Sion

Technical Consulting & Engineering in
Sion