Environmental engineer in
Sion

WSP Ingénieurs Conseils SA

Since 2008 · 21–50 empl.·4.2(22)

WSP Ingénieurs Conseils SA is an engineering and professional services firm working on projects in buildings, transport infrastructure, water and the environment, energy, industry, and sustainable cities and regions.

Bureau d'Etudes Impact SA

Since 1986 · 1–10 empl.

Bureau d'Etudes Impact SA is a consultancy and study office specializing in environmental impact assessments and expertise. Its activities include managing natural resources, energy and waste, environmental monitoring of construction sites, and the tourism and heritage value of territories.

CSD Ingénieurs SA

Since 1992 · 101–500 empl.

CSD Ingénieurs SA is an engineering company providing services in environmental engineering, geology, water, energy and construction. Its work includes contaminated-site remediation, transport and infrastructure projects, and planning for buildings and open spaces.

Drosera Ecologie Appliquée SA

Since 1995 · 11–20 empl.

Drosera Ecologie Appliquée SA is an environmental planning and consultancy firm working in ecology, nature and landscape management. Its services include environmental impact assessments, construction monitoring, and projects concerning forests, waterways, soils and terrestrial and aquatic ecosystems.

BEES Sàrl

Since 2019 · 1–10 empl.

BEES Sàrl is an environmental research and consultancy firm focused on biodiversity and the conservation of natural and cultural heritage. Its activities include environmental impact studies, invasive alien plants, urban biodiversity and agroecology.

Hygiactive Sàrl

Since 2008 · 11–20 empl.·5.0(3)

Hygiactive Sàrl designs and implements solutions for treating air, water and surfaces. Its services include indoor air quality monitoring, microbiological and toxicological analysis, consultancy, audits, filtration and bio-decontamination.

HSE Conseils SA, succursale Valais

Since 2013 · 1–10 empl.·5.0(1)

HSE Conseils SA, succursale Valais provides consulting and diagnostic services related to construction pollutants, environmental management and occupational safety. Its services include construction-site monitoring, laboratory analyses, waste and water management support, and training.

Produbati Sàrl

Since 2021 · 21–50 empl.·5.0(2)

Produbati Sàrl provides building pollutant assessments, including inspections for asbestos, lead, PCBs and PAHs. Its services also include sampling, monitoring of remediation work, radon measurements, building energy certificates and advice on energy renovations.

geoformer igp AG

Since 2026 · 21–50 empl.

geoformer igp AG is an interdisciplinary engineering firm working in natural hazards, geology, the environment and civil engineering. It provides assessments and advice, and plans and oversees projects, with a core focus on gravitational and hydrological hazards and related risk management.

Valestim Sàrl

Since 2017 · 1–10 empl.·4.0(1)

The core activity of Valestim Sàrl is to provide services in the field of real estate valuation, expertise and consulting, particularly in the Valais region of Switzerland. This includes the valuation of various types of properties, such as residential homes, commercial properties, industrial and commercial buildings, mountain residences, hospitality and hotel properties, as well as historic buildings. The company also offers specialized services such as land valuation, determination of property values in the context of inheritances, financing or divorces, and the application of specialized valuation methods such as the Discounted Cash Flow (DCF) method.

Monitron SA

Since 2026 · 1–10 empl.

Monitron SA designs, implements, operates and maintains measurement and monitoring systems. Its services cover water, geotechnics, the environment, natural hazards, buildings and infrastructure, including data management and analysis.

biol conseils sa, succursale de Sion

Since 2012 · 1–10 empl.