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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSealing & InsulationLangenbruckMartin Lienhard
Martin Lienhard Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Martin Lienhard is a consulting practice for building and room acoustics and noise protection. It provides measurements, calculations, planning, reports and expert assessments on sound insulation, room acoustics and environmental or industrial noise, including type testing and sound power measurements.

AI-generated
Offering

Products & services

Industry:Sealing & Insulation
✓ Offered7
Building acoustics
Measurements, calculations, planning, expert reports and expert assessments for sound insulation of partition walls, ceilings and facades in buildings.
Room acoustics
Acoustic design of halls, churches, museums, school buildings, offices and industrial halls.
Noise protection
Investigations and expert reports on road, rail, air, commercial and industrial noise, sports facilities, as well as sound power measurements and workplaces.
Noise reports and noise studies
Expert reports and studies on construction noise, traffic noise, noise sensitivity levels, new builds and conversions, as well as UVPs.
Aircraft type testing
Type testing (noise) of propeller-driven aircraft up to 9,000 kg for BAZL.
Noise emission measurements for machines
Sound power measurements and noise emission measurements on machines.
Acoustic workplace design
Acoustic design of workplaces in various companies.
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Martin Lienhard

Trust & reputation

ranQ Trust Score of Martin Lienhard: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Martin Lienhard 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%
Martin Lienhard scores 78.5 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.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%
Martin Lienhard scores 83.3 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).83.322%
Martin Lienhard scores 1.7 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 35.1.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Martin Lienhard reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of October 2026.

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

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Location

Hausmattstrasse 11
4438 Langenbruck

At a glance

Legal form
Sole proprietorship
UID
CHE-107.695.679
Founded
2003 · 23 years
Last commercial register change
December 16, 2003
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.
67.0
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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