Technical Consulting & Engineering in
Sion

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

Companies

50 of 52 companies

Serge Frochot & Daniel Pi, Bureau d'Ingénieurs Civils

Since 1978

Civil engineeringStructures and fire protectionWater management

View profile5(7)

Transportplan Sion SA

Since 1986

Soft mobility and public transportTraffic and parkingUrban development and civil engineering

View profile

Bureau d'Etudes Impact SA

Since 1986

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

View profile

Phitronic SA

Since 1987

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

View profile

Sigma Ingénierie et Maintenance SA

Since 1989

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

View profile

Géoval Ingénieurs-Géologues SA

Since 1992

GeotechnicsNatural hazardsHydrogeology

View profile5(3)

Arcalpin, Thomas Ammann

Since 1999

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

View profile3(2)

Geosat SA

Since 2001

Official land surveyingTechnical surveying and geodetic monitoring3D mapping and laser surveys

View profile

BPA Ingénieurs conseils Sàrl

Since 2004

Civil engineeringSeismic assessments and seismic strengtheningSpecial foundation and retaining works

View profile

Enerconseil Sion SA

Since 2005

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

View profile5(3)

Ingénieur-conseils en électricité Yves Roduit Sàrl

Since 2006

Building electrical engineeringElectrical installation expertise and auditsStrong current

View profile

Protech - Léger Laurent

Since 2008

Electrical studiesPhotovoltaic installationsRefrigeration technology and maturation

View profile

Physeos SA

Since 2011

Building physicsbSol® professional toolsTraining

View profile

aquaTech Services SA

Since 2011

Potable Water ManagementSelf-monitoring HACCP conceptDrinking Water Network Management

View profile

K Energy Sàrl

Since 2014

CVSE engineering officeHeating studiesVentilation studies

View profile

Ergitec Sàrl

Since 2016

Project study supportSupport to project managementConstruction economics consulting

View profile

Sys-TechConcept Sàrl

Since 2018

VentilationAir conditioningMaintenance

View profile5(2)

Aclimatech SA

Since 2018

Heating study servicesVentilation study servicesRefrigeration and air-conditioning study services

View profile

CSD Ingénieurs SA

Since 2019

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

View profile

Société de Contrôles SA

Since 2020

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

View profile

Emch+Berger SA Lausanne, succursale de Sion

Since 2021

InfrastructureBuilding construction worksEnergy and environment

View profile

Produbati Sàrl

Since 2023

Building pollutant diagnosticsSampling and analysis of pollutantsDecontamination site monitoring

View profile5(2)

Lyseis GmbH

Since 2023

Engineering office for smart grid analysisAnalysis of smart meter data

View profile

Skywatt SA

Since 2023

Photovoltaic installationSolar batteryCharging stations

View profile5(9)

PROTECH - Ingénieurs-Conseils Sàrl

Since 2024

Electrical studiesPhotovoltaic installationsRefrigeration technology and maturation

View profile

Orbis360 SA

Since 2024

Mobile Mapping3D Web-PublishingDigital Twins

View profile

ELECTROSUR Sàrl

Since 2025

OIBT inspectionsElectrical studyEnergy study

View profile

VHTechnic Sàrl

Since 2011

View profile5(3)

ARX Groupe SA

Since 2021

View profile5(1)

CAO-Concept Sàrl

Since 2023

View profile

COSFI SA

Since 2025

View profile

sd ingénierie sion sa

Since 1964

View profile5(7)

Gapany Frères Ingénieurs E.P.F.Z.

Since 1978

View profile

Bureau de dessin technique, Schroeter et Evéquoz

Since 1986

View profile

Paul Glassey Bureau d'ingénieurs SA

Since 1995

View profile

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

Since 1997

View profile

Lauener Georges

Since 2008

View profile

INTERNATIONAL MARITIME PROJECT MANAGEMENT S.A.

Since 2010

View profile

DbonR Sàrl

Since 2015

View profile

Sobali SA

Since 2015

View profile

ARGYRIOS SIMOS DENIM ENGINEER CONSULTANT

Since 2016

View profile

Carruzzo-Assainimmob

Since 2016

View profile

HG Engineering SARL

Since 2019

View profile

Schibli-Tech

Since 2020

View profile

Sinnoren SA

Since 2022

View profile

B5 Consulting Sàrl

Since 2023

View profile

AC-INGENIUM Sàrl

Since 2024

View profile

Betec Haklaj

Since 2024

View profile

CERT-infra Sàrl

Since 2025

View profile

SecurConcept, Morgado

Since 2025

View profile

Show 38 more companies

Technical Consulting & Engineering in Sion

52Technical Consulting & EngineeringCommercial register (Zefix) · as of August 26, 2026

2016Median year of registrationCommercial register (Zefix) · as of August 26, 2026

405in the Canton of ValaisCommercial register (Zefix) · as of August 26, 2026

10,440in SwitzerlandCommercial register (Zefix) · as of August 26, 2026

Locations

Technical Consulting & Engineering in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of August 26, 2026

Largest places

Martigny35 Visp25 Monthey25 Sierre21 Collombey12 Brig11 Glis9 Fully8 St-Maurice8 Zermatt6

Place axis

Other industries in Sion

All companies in Sion

Real Estate Project Development338 Restaurants170 Holding Companies143 Real Estate Brokerage141 Property Management119 Architecture Firms100 IT Consulting & Services71 Fiduciary Offices69 Management Consulting56 General Contractors56 Auto Repair Shops54 Software Development52 Automotive & Vehicle Trade50 Advertising Agencies46 Hair Salons44 NGOs & NPOs34 Plumbing & Building Services33 Retail - Textiles & Clothing32 Other Service Industries30 Electrical Planning & Installation30 Psychiatry & Psychotherapy30 Facility Management & Cleaning30 Physiotherapy29 Clubs, Bars & Event Venues28 Coaching & Personal Development27 Financial Services27 Logistics & Transport Companies27 Viticulture26 Cultural & Educational Organizations26 Online Shops26 Recruitment & HR Consulting25 Research & Development24 Trade Fair & Event Organizers24 Insurance Brokerage & Consulting24 Printing Companies24 Interior Design & Furnishing23 Painting & Plastering23 Sports & Recreation Instruction23 Dental Clinics23 Hotels23 Continuing Education Institutes22 Civil Engineering Firms21 Wellness & SPA Facilities21 External Asset Management20 Building Construction19 Medical Technology Industry19 Wholesale - Beverages & Spirits19 Interior Construction18

Show all

Technical Consulting & Engineering inSion

50 of 52 companies

Technical Consulting & Engineering in the region

Technical Consulting & Engineering in other places

Other industries in Sion

Technical Consulting & Engineering in
Sion