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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsBernB + S AG
B + S AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

B + S AG provides comprehensive planning and engineering services in the business areas of transport infrastructure, sites and buildings, and environment, energy and water, and offers single-discipline solutions across approximately 30 specialist fields. The company supports projects from development through planning to realization and operates a management system certified to ISO 9001.

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Products & services

Industry:Civil Engineering Firms
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B + S AG

4
Transport and traffic infrastructure
Development, planning and implementation of infrastructure projects and mobility concepts for rail and road traffic; new and expansion, maintenance, engineering structures, underground structures, utility lines, equipment and ancillary facilities.
Sites and buildings
Overall concepts and projects for the use and development of sites and plots; new builds, change of use and renovations of buildings, load-bearing systems, structural implementation and energy-efficient preservation.
Environment, energy and water
Advisory and support from the concept to the execution phase for energy-related facilities, supply and waste management infrastructure, near-natural waters, ecological connectivity, protection and land-use planning, and wildlife protection.
Specialist expertise
Individual solutions in around 30 specialist fields, including contaminated sites, asbestos and building pollutants, railway construction, building physics, preservation of structures, BIM, geotechnics, bridge construction, tunnel construction, transport planning and water engineering.
Trust & reputation

ranQ Trust Score of B + S AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

B + S AG scores 56.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.73.124%
  • 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.35.310%
  • 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%
B + S AG scores 97.4 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.96.07%
B + S AG scores 85.0 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).85.022%
B + S AG scores 88.6 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 35.88.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

B + S AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 3 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Weltpoststrasse 5
3015 Bern

At a glance

Legal form
Corporation
UID
CHE-105.973.324
Founded
1997 · 29 years
Last commercial register change
July 27, 2026
Employees
101 to 500
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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