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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringLucernetrüb & klar AG
trüb & klar AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of trüb & klar AG is the planning, consulting and implementation of projects in the field of water development and rehabilitation, particularly the renaturation of streams and rivers, as well as the prevention and control of natural hazards such as floods. The company offers services such as consulting, basic studies, design, execution and monitoring of water projects, with the aim of creating and maintaining near-natural waters.

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Products & services

Industry:Technical Consulting & Engineering
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trüb & klar AG

✓ Offered12
Advisory & fundamentals
Advisory in water-related matters and collection of fundamentals such as watercourse structures, substrate composition, watercourse geometry, terrain elevations, structures, water levels, flood marks, and bedload and floating-timber loads.
Studies & concepts
Development of condition analyses, measures concepts, morphology and hydrology studies, as well as feasibility and alternative studies for revitalisations, stream re-openings, longitudinal connectivity and rehabilitation concepts.
Event analysis & hazard assessment
Mapping and documentation of damage, inundation areas and deposits, reconstruction of flood discharges, and assessment of flood, surface runoff and debris-flow hazards using hazard maps and object protection reports.
Planning & execution
Preliminary and construction projects, approval (public submission) projects, tendering, detailed execution projects, as well as site management and technical construction supervision for revitalisation, flood protection and maintenance projects in river and water engineering.
Modelling & dimensioning
Numerical model calculations of flow conditions and bedload transport to assess watercourse development, and hydraulic dimensioning of riverbeds, banks, protective structures, bridges, culverts and water intakes.
Monitoring & control
Monitoring of watercourses and success checks of revitalisation measures to assess bed level, bedload sediment regime, watercourse structures, channel shape, bed material composition and the condition of protective structures.
Morphology
Development of morphological fundamentals and assessment of changes in watercourse shape, watercourse width, as well as bed and bank structures, including analysis of historical watercourse maps.
Water
Hydrological and hydraulic fundamentals for low to high flow discharges, including calculation and assessment of water levels, flow velocities and wave action on lakes.
Solids
Determination of bedload, suspended solids and floating-timber loads, assessment of the bedload sediment regime, transport capacities and the stability of the watercourse bed.
Renaturalisation
Planning of revitalisations of rivers and lake shores, as well as measures to restore a natural flow regime and bedload sediment regime.
Natural hazards
Hazard maps, object protection reports and dimensioning of protective measures against flooding, surface runoff and debris flows.
Maintenance
Mapping of existing protective structures, planning and execution of maintenance measures, deconstruction of protective structures no longer required, and close-to-nature long-term rehabilitations.
Trust & reputation

ranQ Trust Score of trüb & klar AG

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

trüb & klar AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
trüb & klar AG scores 67.5 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.58.012%
  • 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%
trüb & klar AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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).85.022%
trüb & klar AG scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

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

Knowledge

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Location

Murbacherstrasse 19
6003 Lucerne
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-232.274.749
Founded
2022 · 4 years
Last commercial register change
December 12, 2022
Employees
1 to 10
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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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