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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsSierreBL Ingénieurs SA
BL Ingénieurs SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of B Ingénieurs SA is engineering services in the construction sector, particularly in the following areas: structural engineering, civil engineering (such as bridges, tunnels, and roads), transformation and renovation of buildings, seismic engineering, expertise and consulting for construction projects, and project management and optimization. The company thus offers a wide range of engineering services for construction projects, from planning and construction to renovation and modernization of existing buildings.

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Products & services

Industry:Civil Engineering Firms
✓ Offered6
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BL Ingénieurs SA

Structural engineering
Projects in reinforced concrete, steel and timber; design and execution of structures for buildings, infrastructure works, bridges and architectural structures.
Civil engineering
Planning and execution of infrastructure; pipe and energy networks, infiltration of stormwater, retention basins, treatment of industrial wastewater and civil engineering structures.
Infrastructure rehabilitation
Rehabilitation of roads and networks, structures, retaining walls and concrete works; removal of elements containing asbestos.
Seismic engineering
Strengthening of existing buildings and design of new structures with integration of seismic safety and protection standards against earthquakes.
Structural assessment
Assessment of the condition of buildings, analysis and evaluation of damage, expertise on construction defects, with diagnosis and recommendations for solutions.
Project management and optimisations
Delegate of the client, principal representative, construction management and optimisation of structures to coordinate, supervise and improve construction projects.
Trust & reputation

ranQ Trust Score of BL Ingénieurs 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.

BL Ingénieurs 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%
BL Ingénieurs SA scores 76.5 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.70.212%
  • 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%
BL Ingénieurs 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%
BL Ingénieurs SA scores 10.9 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 35.10.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BL Ingénieurs 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.

Knowledge

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Location

Avenue Mercier-de-Molin 5
3960 Sierre
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-473.227.808
Founded
2020 · 6 years
Last commercial register change
September 9, 2020
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.70.03%
    • Full methodology

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