Environmental engineer in
Sierre

7 companies in Environmental engineer based in Sierre — name and year of registration from the commercial register. The list below shows them all.

Companies

All 7 companies in Sierre

BISA - Bureau d'Ingénieurs SA Logo

BISA - Bureau d'Ingénieurs SA

Since 1969 · 1–10 empl.4.8(12)

BISA - Bureau d'Ingénieurs SA is a civil engineering firm. Its services include planning and consulting in road and transport engineering, structures, spatial planning, environment and mobility, as well as safety and fire protection.

Civil engineerCivil engineeringStructures and seismic engineeringSpatial planning
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #1
ALPGEO Sàrl Logo

ALPGEO Sàrl

Since 2002 · 1–10 empl.

ALPGEO Sàrl is a geoscience consultancy working in hydrogeology, geology, geothermal energy, geotechnical engineering and environmental matters. Its services include studies and modelling, groundwater resource assessments, natural hazard evaluations and advice on contaminated sites.

Environmental engineerHydrogeologyShallow geothermal energyEnvironment and contaminated sites
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #2
ERM Swiss GmbH Logo

ERM Swiss GmbH

Since 2012 · 21–50 empl.

ERM Swiss GmbH advises organizations on sustainability and environmental, health and safety (EHS) matters. Its services combine strategic advisory and technical delivery, including EHS management, auditing, ESG advisory, sustainable finance and remediation.

Management consultantStrategy & TransformationClimate & Net ZeroReporting & Disclosure
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
géau environnements SA Logo

géau environnements SA

Since 2012 · 1–10 empl.

géau environnements SA is an engineering consultancy working on water resources, aquatic ecology and environmental issues. Its services include hydrological hazard studies, river restoration planning, environmental assessments and support for water-related permitting procedures.

Environmental engineerWatercourse and Water Management EngineeringEnvironmental and Natural Hazard Studies for Alpine AreasRiver Ecology and Renaturation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #4
Planet Horizons Technologies SA Logo

Planet Horizons Technologies SA

Since 2004 · 11–20 empl.

The core activity of AQUA4D is the development and implementation of water-efficient solutions for agriculture, lawn irrigation and building construction. The company offers services such as the assessment and analysis of water resources, the development of measurement protocols and monitoring processes, as well as the implementation of technologies to improve water efficiency.

Environmental engineer
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #5
RWB Valais SA, succursale de Sierre Logo

RWB Valais SA, succursale de Sierre

Since 2018 · 11–20 empl.5.0(3)

RWB Valais SA, succursale de Sierre is an engineering consultancy working in spatial planning, water, energy, the environment, geology, geotechnics, metrology, civil engineering and information systems. It advises public authorities and private clients and supports projects across these fields.

Civil engineerCivil engineeringSpatial planningWater
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #6
RemeO SA Logo

RemeO SA

Since 2026 · 1–10 empl.

RemeO SA develops water-treatment solutions focused on removing PFAS. Its services include mobile treatment systems, the design of new installations, pilot trials and analytical studies for construction-site water, groundwater, and industrial and landfill effluents.

EngineerPFAS Water TreatmentMobile PFAS Treatment SystemsPFAS Treatment Plant Design
ranQ Trust Score 3.5 out of 5.0, rated Solid, Rank #7

Environmental engineer in Sierre

7Environmental engineerCommercial register (Zefix) · as of November 15, 2026
2012Median year of registrationCommercial register (Zefix) · as of November 15, 2026
97in the Canton of ValaisCommercial register (Zefix) · as of November 15, 2026
1,361in SwitzerlandCommercial register (Zefix) · as of November 15, 2026
Locations

Environmental engineer in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 15, 2026