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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionWallbachBirchmeier Bau AG
Birchmeier Bau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Birchmeier Bau AG is a construction company that carries out building, civil and specialist foundation works and provides services such as demolition, earthworks and infrastructure construction.

AI-generated
Offering

Products & services

Industry:Building Construction
✓ Offered4
Building construction
Building construction for residential construction, commercial and industrial construction, as well as infrastructure construction; conversion and refurbishments for multi-family homes, single-family homes, historic buildings, and drilling, milling and concrete repairs.
Civil engineering
Civil engineering for demolition, earthworks, infrastructure construction, site works and water engineering; in infrastructure construction: traffic routes, pipeline construction, trenchless pipeline construction and civil deep-excavation engineering.
Special foundation engineering
Special foundation engineering with complete construction excavations, excavation closures, pile foundations, water engineering and special drilling; if required, as full or partial services including engineering services.
Timber construction
Timber construction with prefabricated element construction, everything for the roof, interior fit-out and staircases, timber facades and timber terraces; system solutions with prefabricated elements and custom craftsmanship.
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3.9/5

Birchmeier Bau AG

Trust & reputation

ranQ Trust Score of Birchmeier Bau AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Birchmeier Bau AG scores 47.1 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
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.54.224%
  • 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.27.910%
  • 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.50.08%
Birchmeier Bau AG scores 80.2 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.79.212%
  • 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.90.07%
Birchmeier Bau AG 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%
Birchmeier Bau AG scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Birchmeier Bau AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 3.0 out of 5 stars from 2 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
3
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle32
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Kapellenstrasse 1
4323 Wallbach
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:30
Tue
07:30 - 12:00, 13:00 - 17:30
Wed
07:30 - 12:00, 13:00 - 17:30
Thu
07:30 - 12:00, 13:00 - 17:30
Fri
07:30 - 12:00, 13:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-395.032.336
Founded
2018 · 8 years
Last commercial register change
December 28, 2018
Employees
51 to 100
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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