Technical Consulting & Engineering in
Sion
80 companies in Technical Consulting & Engineering based in Sion — name and year of registration from the commercial register.
50 of 80 companies
Serge Frochot & Daniel Pi, Bureau d'Ingénieurs Civils
Since 1978 · 21–50 empl.5.0(8)
Serge Frochot & Daniel Pi, Bureau d'Ingénieurs Civils is a civil engineering firm active in civil engineering, structures and water. The company also provides services in building energy, public infrastructure and mobility, project management assistance, and geology, geotechnics and natural hazards.
sd ingénierie sion sa
Since 1964 · 1–10 empl.5.0(8)
Transportplan Sion SA
Since 1986 · 1–10 empl.
The core activity of Transportplan Sion SA is to provide engineering services in the field of mobility and transport, particularly in the following areas: planning and studies in the field of public transport and soft mobility; traffic studies and modeling; planning and design of transport infrastructure, including parking facilities; consulting services for public and private clients on mobility and transport issues; and engineering services in the field of construction and infrastructure planning. The company thus offers a wide range of services aimed at planning, designing and optimizing mobility and transport in cities and regions.
Bureau d'Etudes Impact SA
Since 1986 · 1–10 empl.
Bureau d'Etudes Impact SA is a consultancy offering environmental impact assessments and environmental expertise. Its services include environmental studies and advice, site and demolition waste management, environmental management for large projects, heritage and historical-route studies, tourism and soft-mobility planning, and noise protection (SIA 181).
Sigma Ingénierie et Maintenance SA
Since 1989 · 1–10 empl.
The core activity of Sigma Ingénierie & Maintenance SA consists of two main areas: 1. **Engineering**: The company provides engineering services, particularly in the fields of: * Design and planning of technical installations in buildings (heating, air conditioning, ventilation, plumbing, water treatment) * Development of energy concepts (heat, electricity, cold) including solar and geothermal systems 2. **Maintenance**: The company provides maintenance and repair services, particularly in the fields of: * Remote monitoring and control of technical installations * Preventive and corrective maintenance of technical installations in buildings and large power plants The company thus offers a combination of engineering services and maintenance and repair services to plan, install and maintain technical installations in buildings and industrial facilities.
CSD Ingénieurs SA
Since 1992 · 101–500 empl.
CSD Ingénieurs SA provides engineering and consulting services, covering environmental engineering, water and wastewater management, energy and infrastructure planning, and contaminated-site remediation.
Geosat SA
Since 2001 · 11–20 empl.
Geosat SA is an engineering and official surveying firm (EPF/SIA) providing surveying, monitoring and geomatics services. Core activities include cadastral and parcel adjustments, geodetic monitoring of dams and infrastructure, technical surveys for major construction projects, 3D mapping with laser‑scan and LiDAR, drone and ground‑penetrating radar imagery, and research & development in laser‑scan, LiDAR, GPS and GPR technologies.
BPA Ingénieurs conseils Sàrl
Since 2004 · 1–10 empl.
The core activity of BPA Ingénieurs conseils Sàrl is the provision of engineering consulting services, particularly in the field of construction and building. This includes expertise for new and existing buildings, including parasismic qualifications, as well as problem-solving and project monitoring.
Ingénieur-conseils en électricité Yves Roduit Sàrl
Since 2006 · 1–10 empl.
The core activity of Yves Roduit Sàrl is the provision of engineering services in the field of electrical engineering and electromobility, particularly in the planning and implementation of electrical projects for buildings. The company offers consulting and planning services for electrical installations and systems and supports customers in the implementation of sustainable and efficient electrical projects.
Protech - Léger Laurent
Since 2008 · 1–10 empl.
The core activity of PROTECH - Ingénieurs - Conseils Sàrl is to provide engineering and consulting services in the field of electrical engineering, particularly in the following specialized areas: electrical engineering studies for industry and construction, technology for refrigeration and ripening systems, installation of photovoltaic systems, and control and expertise of construction costs. The company positions itself as a partner for sustainable development and offers its customers consulting and support in the planning and implementation of construction projects.
Physeos SA
Since 2011 · 1–10 empl.
The core activity of Physeos SA is consulting and expertise in the field of energy efficiency and building physics, particularly in optimizing energy consumption reduction, improving thermal comfort and reducing CO2 emissions. The company offers services such as thermal calculations, energy audits, consulting for building renovations and the development of energy efficiency solutions.
aquaTech Services SA
Since 2011 · 1–10 empl.
The core activity of Aquatech Services is to support and advise municipal waterworks and service providers in the safe and efficient management of drinking water, particularly in the area of ensuring drinking water supply and compliance with safety standards.
K Energy Sàrl
Since 2014 · 1–10 empl.
The core activity of K Energy is the provision of engineering services and consulting services in the field of technical building equipment, particularly in the areas of heating, ventilation, sanitary (water and wastewater supply), and electrical installations. The company specifically offers the following services: studies and planning of technical systems, consulting on the selection of energy-efficient solutions, project management and coordination of construction projects, creation of plans and technical specifications, and monitoring and control of construction projects. The company positions itself as a specialized engineering firm that supports customers in the planning, implementation, and maintenance of technical systems in buildings.
Aclimatech SA
Since 2018 · 1–10 empl.
The company aclimatech SA is an independent engineering firm specializing in the planning and implementation of technical installations in buildings. The core activities include the planning and installation of: heating systems, ventilation systems, air conditioning and refrigeration systems (industrial and commercial), sanitary technology, measurement, control and regulation technology (MCR), and building technology. The company offers engineering services for projects of all sizes, from planning to implementation, taking into account energy efficiency, environmental compatibility, and the needs of users.
Orbis360 SA
Since 2020 · 11–20 empl.
Orbis360 is primarily active in the fields of Mobile Mapping and 3D Web Publishing. The company offers services such as the creation of digital twins, 3D visualization and analysis, as well as the processing of large amounts of geodata. The core activity of the company is to support customers in the optimal use of their data by providing innovative solutions for the capture, processing and visualization of 3D data.
Emch+Berger SA Lausanne, succursale de Sion
Since 2021 · 21–50 empl.
Emch+Berger SA Lausanne, succursale de Sion provides planning, consulting and project management services for complex infrastructure, building, rail and underground works.
Géoval Ingénieurs-Géologues SA
Since 1992 · 11–20 empl.5.0(3)
The core activity of GéoVal - Ingénieurs Géologues SA encompasses the provision of services in the fields of geology, hydrogeology, geotechnics, natural hazards, geothermal energy, and contaminated sites. This includes, among others: geological and hydrogeological investigations, geotechnical analysis and consulting, risk assessment and management for natural hazards such as landslides, rockfalls, and floods, development of protection concepts and measures, investigation and remediation of contaminated sites, geothermal applications, creation of hazard maps and risk analyses, and consulting and planning in the field of geotechnics and hydrogeology for construction projects such as buildings, bridges, dams, and transportation routes.
Société de Contrôles SA
Since 2020 · 1–10 empl.
The core activity of SCSA (Société de contrôles SA) consists of carrying out technical inspections and safety checks on electrical and heating systems, including maintenance and repair of these systems. The company also provides consulting and guidance services to support customers in optimizing their safety, costs and environmental impact.
CAO-Concept Sàrl
Since 2017 · 1–10 empl.
Enerconseil Sion SA
Since 2005 · 11–20 empl.5.0(3)
The core activity of Enerconseil is to provide engineering and consulting services in the field of energy efficiency and building physics. This includes in particular the planning, simulation and optimization of buildings and their technical systems to achieve optimal energy consumption and comfort.
Skywatt SA
Since 2023 · 1–10 empl.5.0(9)
The core activity of Skywatt SA is the planning, installation and maintenance of solar systems, including photovoltaic systems, battery storage and charging stations for electric vehicles. The company also offers comprehensive services such as coordinating permit procedures, performing inspections and maintenance, and developing customized solutions for the energy transition.
VHTechnic Sàrl
Since 2011 · 1–10 empl.5.0(3)
The core activity of VHTechnic Sàrl is the provision of technical services and consulting in the field of building technology, particularly in the areas of: Heating: planning and implementation of energy-efficient heating systems; Sanitation: planning and implementation of sanitary facilities, including the installation of water and wastewater systems; Ventilation and air conditioning: planning and implementation of ventilation and air conditioning systems; Energy: conducting energy analyses and diagnostics, creating energy balances and supporting the acquisition of energy certifications such as Minergie. The company also provides comprehensive technical support in the planning, execution and monitoring of construction projects.
Sys-TechConcept Sàrl
Since 2018 · 1–10 empl.5.0(3)
The core activity of Sys-TechConcept Sàrl is to provide services in the field of air conditioning and ventilation technology, particularly in the areas of: Ventilation, Air conditioning, and Maintenance. The company thus offers services that focus on the planning, installation, maintenance and repair of ventilation and air conditioning systems.
ARX Groupe SA
Since 2021 · 51–100 empl.5.0(1)
Produbati Sàrl
Since 2021 · 21–50 empl.5.0(2)
The core activity of Produbati Sàrl is the diagnosis and decontamination of environmental pollutants in buildings, particularly in the detection and removal of asbestos, PCB, HAP and lead. The company offers services such as environmental analysis, sampling, construction site monitoring and consulting for the renovation of buildings. It also supports compliance with regulations and guidelines in the field of environmental protection and occupational safety.
Lyseis GmbH
Since 2023 · 1–10 empl.
Lyseis GmbH is an engineering firm that provides data analysis for smart grid applications and evaluation of smart meter data. The company delivers project services from planning to implementation and offers consulting and measurement-data analysis for energy stakeholders.
PROTECH - Ingénieurs-Conseils Sàrl
Since 2024 · 1–10 empl.
PROTECH - Ingénieurs-Conseils Sàrl is an electrotechnical engineering consultancy that performs electrical studies and design for industrial and building projects. Its services include refrigeration and maturation technology, photovoltaic installations, and construction cost controls and expertise.
ELECTROSUR Sàrl
Since 2025 · 1–10 empl.5.0(3)
The core activity of ELECTROSUR is to provide services in the field of electrical engineering, particularly in conducting inspections and studies for electrical installations to ensure their safety, conformity and energy efficiency. This includes, among other things: OIBT control (inspections of electrical installations), electrical studies and planning, electrical expertise and consulting, and optimization of energy efficiency and performance of electrical installations. The company offers its customers a comprehensive service, ranging from consulting and planning to conducting inspections and studies, to ensure the safety and conformity of their electrical installations.
RTMV.CH SA
Since 2025 · 1–10 empl.
RTMV.CH SA is an electrical engineering and installation company. It plans and delivers projects in building services, lighting, energy, telecommunications, IT, safety, and photovoltaic systems.
Arcalpin, Thomas Ammann
Since 1999 · 1–10 empl.3.0(2)
The core activity of Arc Alpin is planning and consulting in the field of territorial development and resource management, particularly in mountainous regions. This includes: territorial planning and construction law, regional development and rural space, project management and resource management, as well as agronomy and soil management. The company provides consulting services to public and private clients to promote sustainable development in mountainous regions. This also includes accompanying projects that have an impact on the environment, such as planning energy projects, managing water resources, and rehabilitating contaminated sites.
Techno Metal Post VD Sàrl
Since 2026 · 1–10 empl.
Techno Metal Post VD Sàrl provides screw piles and foundation solutions for construction projects. The company supports residential, commercial, and industrial projects with engineering services, technical documents, and certified installation partners.
Gruner Stucky AG
Since 2026 · 1–10 empl.
Gruner Stucky AG is an engineering and design company serving private and public clients in the building construction, infrastructure and energy sectors. Its services include structural design, geotechnical engineering, building services, environmental and safety engineering, infrastructure planning and digital engineering solutions.
geoformer igp AG
Since 2026 · 21–50 empl.
geoformer igp AG is an interdisciplinary engineering and consulting company focused on natural hazards, geology, environment/forestry and civil engineering. It provides assessments, consulting, planning and construction management for projects involving gravitational and hydrological risks, protective structures, risk management and renaturation.
Gil Sequeira - Aetherys Etudes CVCS
Since 2025 · 1–10 empl.
Gil Sequeira - Aetherys Etudes CVCS is an engineering office for HVAC and sanitary planning and consulting. The company develops studies and concepts for heating, ventilation, air conditioning, plumbing, and building services, and supports projects from design through execution.
Phitronic SA
Since 1987 · 1–10 empl.
The core activity of Phitronic & Partners is to support startups and small to medium-sized enterprises (SMEs) in their international expansion. To this end, the company offers specialized services, such as establishing contacts in difficult markets, representing companies in politically unstable regions, and organizing high-level business relationships. Phitronic & Partners acts as a platform that supports companies in opening up new markets and diversifying their activities.
Ergitec Sàrl
Since 2016 · 1–10 empl.
Ergitec Sàrl provides consulting and specialist engineering services focused on the geotechnical aspects of construction projects. Services include project study support, tender assistance, technical support, site supervision as a specialist, contract management and technical expertise including concrete production consulting and material valorization.
Bucheli Energy Solutions
Since 2025 · 1–10 empl.
Bucheli Energy Solutions provides engineering and consulting services related to the energy transition, with a focus on electric mobility, renewable energy integration, and system integration. The company supports private customers, condominium associations, and SMEs from analysis and planning through commissioning and operation.
Swiss International Medical Planning Sàrl
Since 2026 · 1–10 empl.
Swiss International Medical Planning Sàrl is an engineering firm specialized in hospital planning and medical technology. The company supports clients through analysis, concept development, tendering, execution planning, and commissioning of medical facilities.
COSFI SA
Since 2025 · 1–10 empl.
Betica SA
Since 1977 · 1–10 empl.
Gapany Frères Ingénieurs E.P.F.Z.
Since 1978 · 1–10 empl.
Bureau de dessin technique, Schroeter et Evéquoz
Since 1986 · 1–10 empl.
Paul Glassey Bureau d'ingénieurs SA
Since 1995 · 1–10 empl.
Etude et Management de projets en géométrie et ingénierie - EMGI & Partenaires Sàrl
Since 1997 · 1–10 empl.
PRIOD DAYER SARL
Since 2003 · 1–10 empl.
Edmond SAUTHIER
Since 2004 · 1–10 empl.
Lauener Georges
Since 2008 · 1–10 empl.
W2B SA
Since 2010 · 1–10 empl.
FGP Fugazza
Since 2010 · 1–10 empl.
INTERNATIONAL MARITIME PROJECT MANAGEMENT S.A.
Since 2010 · 1–10 empl.
Technical Consulting & Engineering in Sion
Technical Consulting & Engineering in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of October 10, 2026
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