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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceJonenFischer Bau AG
Fischer Bau AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Fischer Bau AG is a construction company providing building and civil engineering services, including renovations, and acting as a general contractor for development projects. The firm also develops and markets its own real estate projects and offers land, apartments and houses for sale.

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Offering

Products & services

Industry:Building MaintenanceReal Estate Project Development
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Fischer Bau AG

✓ Offered4
Building construction
Building-construction projects for single-family homes, multi-family houses, schools, municipal and commercial buildings, as well as developments and residential complexes.
Civil engineering
Civil-engineering projects such as culverts for streams, bridge widening, bridge reconstruction, retaining walls, paving and redesigns in outdoor areas.
Refurbishment & Renovations
Refurbishments and renovations of schools, wine cellars, restaurants, company buildings and bridges, as well as conversions and lift installations.
Real estate
Purchase properties and rental properties with in-house real-estate offerings, including apartments and single-family houses.
Trust & reputation

ranQ Trust Score of Fischer Bau AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 100% · As of October 2026

Fischer Bau AG scores 47.2 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.63.624%
  • 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.17.610%
  • 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%
Fischer Bau AG scores 85.5 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.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.55.07%
Fischer Bau 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%
Fischer Bau AG scores 31.5 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 35.42.94%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.20.04%
Qualifications+0.00

Fischer Bau AG reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 1 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle41
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

December 12, 2025Media
Das sind die Pläne für die Wohnsiedlung am Joner Dorfrand
aargauerzeitung.ch

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Location

Pfäfflerstrasse 2
8916 Jonen

At a glance

Legal form
Corporation
UID
CHE-105.783.433
Founded
1974 · 52 years
Last commercial register change
March 17, 2021
Employees
1 to 10
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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