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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringRomanshornB3 Brühwiler AG
B3 Brühwiler AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

B3 Brühwiler AG is an engineering and consulting firm for the construction sector, providing services in civil engineering, structural and timber construction, and traffic and water engineering. Its offerings include general planning, construction management, digital building (BIM), sustainability consulting and expert assessments.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
✓ Offered10
Civil engineering and transport route construction
Transport route construction, town-centre developments, development of building land, utility line construction, municipal drainage and GEP; as well as bridge, footbridge and rail construction and construction surveying.
Structures and special deep foundations
Infrastructure projects in rail, road, civil engineering and water construction; underpasses, culverts, retaining structures, excavations and excavation closures, as well as structural engineering design and special deep construction.
Water engineering
Analysis, planning and implementation in water engineering and flood protection; brook rehabilitation, stream and river construction, protection of assets, hydraulic and hydrological analyses, renaturation and river corridor (Gewässerraum).
Transport and traffic planning
Operational and design concepts, traffic calming, pedestrian and cycle traffic, public transport stops, parking facilities, speed measurements, traffic counts and mobility concepts.
Overall planning
Planning services and project management from a single source for commercial and industrial buildings, parking structures, public space design for transport areas, and infrastructure, underpass and competition projects.
Construction management
Project and construction planning, schedule, cost and quality control, risk management, contract management, negotiations, site management, as well as acceptance and commissioning in building and civil engineering works.
Digital construction
BIM planning, Virtual Design & Construction, integrated collaboration, BIM to Field and BIM Consulting for design offices and contractors; use in planning and execution.
Sustainable construction
Sustainability analysis and consulting for construction projects, early development of measures, alignment with the SIA efficiency path for energy (SIA-Effizienzpfad Energie) and SNBS, as well as assessment of ecological, social and economic aspects.
Fire protection
Fire protection consulting, fire protection concepts, fire protection plans, object-specific assessments, negotiations with authorities, fire resistance proofs, quality assurance and expert reports.
Expert reports and consulting
Client support and representation, BIM consulting, overall site supervision, as well as expert reports, condition surveys, crack records, construction phase planning and expert mandates.
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4.1/5

B3 Brühwiler AG

Trust & reputation

ranQ Trust Score of B3 Brühwiler AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of October 2026

Without public customer reviews the score stays capped.

B3 Brühwiler 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%
B3 Brühwiler AG scores 82.7 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.89.612%
  • 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.82.07%
B3 Brühwiler AG scores 86.7 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).86.722%
B3 Brühwiler AG scores 44.8 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 35.82.94%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.6.74%
Qualifications+0.00

B3 Brühwiler AG 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 58%, 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.

Press

Media

May 30, 2024Media
Oberbüren: Strassensanierungsprojekt liegt öffentlich auf
nau.ch

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Location

Hafenstrasse 62
8590 Romanshorn

At a glance

Legal form
Branch
UID
CHE-170.564.840
Founded
2015 · 11 years
Last commercial register change
May 27, 2021
Employees
21 to 50
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.
76.0
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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