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DirectoryBusiness & Technical ServicesEngineerZurichMagma AG für Geologie, Umwelt und Planung
Magma AG für Geologie, Umwelt und Planung Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Magma AG für Geologie, Umwelt und Planung is a consultancy specialising in geology, hydrogeology, geotechnical engineering and environmental planning. Its services include investigations and remediation of contaminated sites, ground investigations, building-material hazard assessments, environmental impact assessments, noise protection, and GIS and environmental data solutions.

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Products & services

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4.1/5

Magma AG für Geologie, Umwelt und Planung

✓ Offered12
Contaminated site investigations
Historical and technical investigations of contaminated sites, specifications, contaminant assessments, groundwater and soil investigations, monitoring, remediation projects and excavation and disposal concepts.
Asbestos and building demolition
Building contaminant surveys prior to refurbishment or demolition, asbestos assessments, contaminant findings plans, short reports, demolition concepts and private inspections for strip-out and remediation.
Geotechnical site investigations
Geotechnical investigations for new builds, conversions and replacement buildings, geotechnical reports, driven and core boreholes, statements on foundations, excavation pits, dewatering, slope stabilisation and infiltration.
Soil
Soil investigations and soil-science construction monitoring, soil samples according to VBBo, assessment of contaminant loads, soil movement, soil protection concepts, re-cultivation and soil management.
Gas safety
Gas concepts, gas monitoring and construction-based gas protection for buildings over landfills, supervision of pile and construction works, as well as radon measurements and radon remediation proposals.
Geology
Geological mapping, supervision of boreholes, petrographic and sedimentological investigations, hydrogeological fundamentals, spring and groundwater assessments, and geological reports.
Geothermal energy
Feasibility studies and support for ground heat probe and groundwater heat use, borehole monitoring, pumping tests, hydrogeological assessments and concession checks.
GIS and databases
GIS-supported analyses, geodata processing, maps and modelling, database solutions for environmental and site data, as well as digital specialist applications and websites.
Hydrogeology and hydrochemistry
Hydrogeological investigations, pumping tests, spring and groundwater monitoring, infiltration tests, concession applications, assessments of protection and use, and hydrochemical analyses.
Noise
Noise reports, noise assessments and acoustic protection documentation for road, rail, operational and facility noise, outdoor catering areas, heat pumps, shooting ranges and new-build projects.
Private review of operational environmental protection (BUS)
Review of project documents and construction projects for requirements of operational environmental protection, including drainage, storage of substances hazardous to water and permit documents.
Environmental construction supervision (ECS)
Environmental construction supervision during construction projects, protection of soil, waters and natural values, measures plans, site inspections and final reports.
Trust & reputation

ranQ Trust Score of Magma AG für Geologie, Umwelt und Planung: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of November 2026

Magma AG für Geologie, Umwelt und Planung scores 61.4 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.76.724%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.45.610%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Magma AG für Geologie, Umwelt und Planung scores 88.8 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Magma AG für Geologie, Umwelt und Planung scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).86.722%
Magma AG für Geologie, Umwelt und Planung scores 31.4 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Magma AG für Geologie, Umwelt und Planung reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 5 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Josefstrasse 92
8005 Zurich
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.838.284
Founded
1998 · 28 years
Last commercial register change
September 1, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZHZurich
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.100.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.100.03%
    • Full methodology

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