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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringMarin-EpagnierInfra Tunnel SA
Infra Tunnel SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Infra Tunnel SA is a construction company that builds and rehabilitates underground structures such as tunnels, galleries and caverns. The company also provides specialized civil-engineering works (retaining, pre-support, complex concreting), geotechnical surveys and rope-access work for difficult-to-reach sites.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
✓ Offered4
Underground works
Excavation in difficult or loose ground, blasting and roadheading, tunnel boring machine, shoring and pre-shoring, concreting and finishing of the structures.
Specialist civil engineering
Security and remediation works, emergency measures on operating structures, reconnaissance work, with support in complex environments.
Geotechnical surveys
Boreholes with an auger or a digging bucket, core drilling, piezometric measurements, pumping tests and inclinometer or extensometer measurements.
Rope access work
Access at height in difficult areas, inspections, securing works, maintenance, slope and cliff stabilisation, façade cleaning and interventions on structures.
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4.1/5

Infra Tunnel SA

Trust & reputation

ranQ Trust Score of Infra Tunnel SA: 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.

Infra Tunnel SA 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.
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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%
Infra Tunnel SA scores 90.9 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.70.07%
Infra Tunnel SA 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%
Infra Tunnel SA scores 60.0 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 35.60.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Infra Tunnel SA 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

Rue de la Gare 15c
2074 Marin-Epagnier

At a glance

Legal form
Corporation
UID
CHE-106.038.591
Founded
1988 · 38 years
Last commercial register change
May 8, 2026
Employees
11 to 20
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.85.03%
    • Full methodology

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