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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryMechanical Engineering IndustryLengwilPureon AG
Pureon AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Pureon AG is a provider of surface finishing solutions and products. The company develops, manufactures and tests grinding, lapping and polishing consumables as well as CMP slurries, pads, cleaning agents and coolants, and offers process development and application testing for industries such as advanced optics, semiconductors, medtech and precision manufacturing.

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Offering

Products & services

Industry:Mechanical Engineering Industry
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Pureon AG

✓ Offered7
Grinding solutions
Grinding solutions for surface processing in manufacturing, with customer-specific solutions, process monitoring and support for reproducible results.
Lapping solutions
Lapping solutions for highly precise surfaces, with lapping slurries, lapping plates and process consulting for smooth, flat and precisely prepared surfaces.
Polishing solutions
Polishing solutions for high-tech materials, with application-specific solutions, nanometer fine finishing and support for decorative or functional surfaces.
Chemical Mechanical Polishing (CMP)
CMP solutions with process know-how and consumables for material-removing precision machining, including planarisation and applications for semiconductors and ceramics.
Pastes
Diamond pastes for manual and conventional polishing work, including soft and hard diamond compounds for machining metal, hard materials and molded parts.
Cleaning and rinsing
Aqueous cleaning agents for ultrasonic and megasonic cleaning, for removing organic residues and particles after grinding, sawing, lapping or polishing.
Wafers, cutting and wire sawing
Diamond suspensions, ingot cutting beams, mounting adhesives and saw blades for wafering, slicing and wire-sawing in high-performance applications.
Trust & reputation

ranQ Trust Score of Pureon AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of October 2026

Pureon AG scores 69.5 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.73.324%
  • 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.45.610%
  • 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.88.08%
Pureon 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%
Pureon 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%
Pureon AG scores 42.9 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 35.65.74%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.20.04%
Qualifications+0.00

Pureon AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 5 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.8
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.85
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

December 4, 2020Media
Microdiamant kauft in den USA zu
leaderdigital.ch
November 30, 2020Media
Ein Diamant verdoppelt sich: Die Thurgauer Firma Microdiamant setzt mit einer Akquisition zu einem Wachstumssprung an
tagblatt.ch

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Location

Kreuzlingerstrasse 1
8574 Lengwil
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.951.845
Founded
1995 · 31 years
Last commercial register change
January 17, 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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