ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Partner program
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceWil SgBau-AC Fellner GmbH
Bau-AC Fellner GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Bau AC – Fellner GmbH is the provision of services in the construction industry, particularly in the following specialized areas: masonry and building in accordance with the Accord, formwork (wall and ceiling formwork), exposed masonry, renovations and conversions (kitchen, bathroom, tile work), and concrete restoration. The company offers its services as a general contractor or subcontractor for construction companies and carries out both new constructions and renovations and conversions.

AI-generated
Offering

Products & services

Industry:Building MaintenanceMasonry Work
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
3.9/5

Bau-AC Fellner GmbH

✓ Offered3
Masonry
Masonry for construction companies, qualified personnel and know-how in piecework, flexible and punctual execution on construction projects.
Formwork
Ceiling formwork with long-standing experience, tailor-made solutions and, if required, provision of the equipment.
Facing brickwork
Facing brickwork for large and small projects, carried out by specialized employees as part of construction work.
Trust & reputation

ranQ Trust Score of Bau-AC Fellner GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Bau-AC Fellner GmbH scores 53.8 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.70.824%
  • 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.35.08%
Bau-AC Fellner GmbH scores 86.7 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.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.70.07%
Bau-AC Fellner GmbH scores 83.3 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).83.322%
Bau-AC Fellner GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bau-AC Fellner GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 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
5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once Bau-AC Fellner GmbH has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Bau-AC Fellner GmbH in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Bau-AC Fellner GmbH by reviews, experience and specialisations.

Is this your company?

Claim the company profile of Bau-AC Fellner GmbH to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Erlenstrasse 5
9500 Wil Sg

At a glance

Legal form
Limited Liability Company
UID
CHE-107.595.084
Founded
1997 · 29 years
Last commercial register change
May 10, 2024
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.
88.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Similar companies

    TR
    Top Rohbau GmbH
    Wil Sg
    AM
    Anderegg Mauerentfeuchtung GmbH
    St. Gallen
    GB
    Gahlinger Bau & Gestaltung (GBG)
    Oberbüren
    GB
    Gätzi Bau GmbH
    Oberterzen
    MB
    MK Bau GmbH
    Niederwil Sg
    UB
    Ulmann Bau
    Hinterforst
    RB
    Rupp Bau AG
    Plons
    MA
    Moser AG Baugeschäft
    Niederwil Sg