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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryMetal IndustryGrenchenKaltbrunner AG
Kaltbrunner AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Kaltbrunner AG is the development and application of surface treatments and coatings for various industrial sectors, particularly using PVD processes (Physical Vapor Deposition), painting, matting and plasma cleaning. The company's products and services include, among others, PVD metallization, EMV shielding, decorative hard coatings, wear protection coatings, mirroring and painting. These surface treatments and coatings are offered for various industries such as automotive, aerospace, electronics, building technology, consumer goods, measurement technology, sensor technology, medical technology, reflectors, solar, watches and jewelry.

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Products & services

Industry:Metal Industry
✓ Offered8
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Kaltbrunner AG

PVD metallisation of plastics
PVD coatings for finishing plastics for utility and decorative articles; metallic effects from high gloss to matte, in gold, chrome, silver and other colours.
EMC shielding on plastics
Shielding coatings against electromagnetic interference and electrostatic discharge on plastics; also for glass, using conductive paints and PVD solutions.
Decorative hard coatings
Hard and wear-resistant coatings for metal finishing; suitable for stainless steel, titanium and treated brass and nickel-silver surfaces, in different colours.
Wear-resistant coatings
PVD hard coatings to reduce tool wear and extend service life; used for stamping, forming and injection-moulding tools.
Mirror coating
Mirror coating of reflectors made of glass, plastic or metal; fully reflective and partially transparent systems for lamps, vehicle headlights, LEDs and infrared applications.
Lacquering
Lacquer coatings for decorative finishing of plastics and metals; applicable to full surfaces or partial areas.
Matting
Matting processes to reduce unwanted reflections; creates structured surfaces from matt to satin-matt on stainless steel, titanium, plastics and glass.
Plasma cleaning
Plasma cleaning for ultra-fine pretreatment before coating, printing, bonding or lacquering; removes organic residues such as fingerprints.
Trust & reputation

ranQ Trust Score of Kaltbrunner AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Kaltbrunner AG scores 60.9 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.71.724%
  • 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.55.910%
  • 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%
Kaltbrunner AG scores 92.3 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.82.07%
Kaltbrunner AG scores 85.0 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).85.022%
Kaltbrunner AG scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Kaltbrunner AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.6 out of 5 stars from 8 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
4.6
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle4.68
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Sportstrasse 1
2540 Grenchen
Opening hours
Mon
07:30 - 11:45, 13:30 - 16:30
Tue
07:30 - 11:45, 13:30 - 16:30
Wed
07:30 - 11:45, 13:30 - 16:30
Thu
07:30 - 11:45, 13:30 - 16:30
Fri
07:30 - 11:45, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.506.596
Founded
1974 · 52 years
Last commercial register change
April 23, 2025
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.70.03%
    • Full methodology

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