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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionGrub ArThomas Merz GmbH
Thomas Merz GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is carpentry, particularly interior finishing and window construction, including the manufacture, renovation and installation of wooden components such as furniture, doors, windows, stairs and floors.

AI-generated
Offering

Products & services

Industry:Interior Construction
✓ Offered5
Interior fit-out
Interior fit-out with wood for tables, bench seating, chairs, floors, staircases, doors, cabinets, shelves and sideboards; for new builds, conversions and renovations.
Window construction
Window construction for new windows and repairs of existing windows made of wood, wood-metal or plastic, including work on heritage-listed windows.
Joinery
Joinery for custom woodworking to suit your preferences, including furniture, built-in fittings and well-designed living elements, based on consultation and planning.
Renovation
Renovation of wooden structural components and interior fit-out work during conversions and renovations, complemented by repairs and adjustments to existing elements.
Installation
Installation of wooden and interior fit-out components, from new or existing structural parts to professional on-site implementation.
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3.7/5

Thomas Merz GmbH

Trust & reputation

ranQ Trust Score of Thomas Merz GmbH: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 96% · As of October 2026

Thomas Merz GmbH scores 51.1 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.58.124%
  • 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.35.310%
  • 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%
Thomas Merz GmbH scores 70.2 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.70.212%
  • 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.55.07%
Thomas Merz GmbH 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%
Thomas Merz GmbH scores 14.3 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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Thomas Merz GmbH reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». The rating draws, among other things, on 3.7 out of 5 stars from 3 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
3.7
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle3.73
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Frauenrüti 336
9035 Grub Ar

At a glance

Legal form
Limited Liability Company
UID
CHE-150.004.615
Founded
2020 · 6 years
Last commercial register change
March 26, 2020
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.
88.0
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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