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

About the company

Welz AG is a joinery firm that also provides planning and interior-architecture services, delivering bespoke carpentry, interior fit-outs and custom furniture. The company handles project planning, construction supervision and execution for renovations, replacement-buildings and shopfitting, and offers services for kitchens, bathrooms and maintenance.

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Offering

Products & services

Industry:Interior Construction
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Welz AG

✓ Offered12
Interior fit-out
Custom interior fit-out for living spaces, offices and retail premises; bespoke design, planning and execution for harmonious rooms and furniture solutions.
Renovation
Renovation of living spaces, offices and retail premises; planning, construction management and end-to-end implementation for private clients and project partners.
Custom kitchens
Custom kitchens, from planning to installation; functional and comfortable cooking environments for private projects.
Custom bathrooms
Custom bathrooms, planned and implemented for individual needs; solutions for functional and suitable bathroom spaces.
Shopfitting
Shopfitting for sales areas, offices and specialist shops; design, planning and execution for functional presentation and working spaces.
Custom furniture
Made-to-measure furniture for living and working environments; design and construction of individual pieces or series as required.
On-site service
Joinery service with rapid response on site; repairs and smaller jobs by experienced professionals with well-equipped vehicles.
Interior design
Interior design for residential spaces, shops, practice rooms and furniture; concept, design and implementation of room and furniture solutions.
Design
Design of spaces and coherent environments; layout of interiors with coordinated colours, shapes and functions.
Development
Development and realisation of ideas for kitchens, bathrooms, retail premises and offices; project development from idea to implementation.
Construction supervision
Construction supervision with planning, organisation and coordination of complete projects; support through realisation and handover of keys.
Execution
Execution of individual pieces, series, kitchens, bathrooms and custom interior fit-out; realisation of the requested works by the craft.
Trust & reputation

ranQ Trust Score of Welz AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 100% · As of October 2026

Welz AG scores 82.1 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.87.024%
  • 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.73.510%
  • 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.78.08%
Welz AG scores 95.0 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.82.07%
Welz 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%
Welz AG scores 22.2 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 35.34.34%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Welz AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 17 customer reviews. 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 17 reviews across all connected sources

Sources
GGoogle517
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

July 1, 2026Media
AMAG präsentiert Finalisten des Family Business Award 2026
punkt4.info
July 1, 2026Media
AMAG präsentiert Finalisten im Family Business Award 2026
punkt4.info
May 5, 2023Media
«Die Firma war immer Teil meines Lebens»: Generationenwechsel bei der Welz AG
appenzellerzeitung.ch

Knowledge

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Location

Bühlerstrasse 10
9043 Trogen
Opening hours
Mon
07:00 - 17:30
Tue
07:00 - 17:30
Wed
07:00 - 17:30
Thu
07:00 - 17:30
Fri
07:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.065.573
Founded
1989 · 37 years
Last commercial register change
December 14, 2022
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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.95.03%
    • Full methodology

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