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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialized Construction ActivitiesEschenbach SgA. Diem AG
A. Diem AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of A. Diem AG is the powder coating, painting and processing of metal parts for various industries such as industry, construction and private customers. This also includes sandblasting and the application of paints and coatings on different materials.

AI-generated
Offering

Products & services

Industry:Specialized Construction Activities
✓ Offered6
Powder coating
Powder coatings for industry, construction and private customers; for railings, machine parts, rims, chassis, posts and hot-dip galvanized workpieces, in RAL, NCS and special effects.
Sandblasting
Sandblasting for cleaning production residues and old paint coatings, and as pretreatment for powder coating or painting; for individual parts and series.
Industrial paintwork
Wet paint coatings for series and individual parts when parts are not suitable for powder coating due to temperature or size; for indoor and outdoor use.
Workpiece pretreatment
Chemical pretreatments for indoor and outdoor use, as well as pretreatment by wet paint, including for aluminium profiles, doors, frames, façade sheet metal and steel sheet metal.
Spray galvanizing
Spray galvanizing in combination with blasting and paint for exterior structural components such as railings, U-beams and fire-protection frames.
Sweepen surface preparation
Sweepen using a centrifugal-wheel system as surface preparation for railings, beams, steel sheet metal and similar workpieces.
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4.3/5

A. Diem AG

Trust & reputation

ranQ Trust Score of A. Diem AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

A. Diem AG scores 77.5 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.65.024%
  • 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.89.710%
  • 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.100.08%
A. Diem AG scores 89.3 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%
A. Diem AG 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%
A. Diem AG scores 9.1 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 35.9.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

A. Diem AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.3 out of 5 stars from 33 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
4.3
of 5

Aggregated from 33 reviews across all connected sources

Sources
GGoogle4.333
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Gublenstrasse 4
8733 Eschenbach Sg
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.287.484
Founded
1995 · 31 years
Last commercial register change
July 16, 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.
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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