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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsGelterkindenkustermartin & co. gmbh
kustermartin & co. gmbh Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Kustermartin & Co. is timber construction and architecture, particularly the planning and realization of construction projects with a focus on sustainability and environmental friendliness. The company offers services in the areas of timber construction, architecture, and carpentry, and has specialized in designing living spaces with care, honesty, and sustainability.

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Products & services

Industry:Architecture FirmsInterior Construction
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4.1/5

kustermartin & co. gmbh

Timber Construction & Carpentry
✓ Offered8
Timber construction + architecture
Pre-project, planning and construction management for building projects; timber element construction, carpentry work, roof renovation, interior fit-out and kitchen construction.
Preliminary design and planning
Sketching projects based on wishes, needs and framework conditions; detailed planning and preparation of the documents for the building permit application.
Construction management
Coordination of the construction process and ensuring the quality requirements; they usually take over construction management for their own projects.
Timber element construction
Manufacturing of timber elements in the workshop and fast, dry shell construction on site.
Carpentry work
Classic carpentry work such as roof trusses, wooden facades, solid-wood floors and staircase construction.
Roof renovation
Renovation and re-insulation of roofs, including insulation with Isofloc cellulose as well as installation of solar and photovoltaic systems.
Interior fit-out
Walls, ceilings and floors with paneling, parquet or clay construction boards; planning, designing and building fitted furniture and solid-wood furniture.
Kitchen construction
Custom kitchens, planned, engineered and built.
Trust & reputation

ranQ Trust Score of kustermartin & co. gmbh: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

kustermartin & co. gmbh scores 65.9 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.75.024%
  • 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.40.910%
  • 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.70.08%
kustermartin & co. gmbh scores 84.7 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.95.212%
  • 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.70.07%
kustermartin & co. gmbh scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
kustermartin & co. gmbh scores 7.7 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 35.7.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

kustermartin & co. gmbh reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 4 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 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Bündtenweg 5
4460 Gelterkinden

At a glance

Legal form
Limited Liability Company
UID
CHE-321.556.262
Founded
2013 · 13 years
Last commercial register change
May 1, 2026
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

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