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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryRetail & CommerceWholesale - Machinery & Technical EquipmentWattwilParticle Measuring Systems AG
Particle Measuring Systems AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company is a provider of precision measurement instruments and services for various industries such as pharmaceuticals, semiconductors, aerospace, cosmetics, and food. The core activity is to support customers through advanced instruments, software, and services to improve processes, quality, and yield, and to shorten the time-to-market.

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Products & services

Industry:Wholesale - Machinery & Technical Equipment
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4.2/5

Particle Measuring Systems AG

12
Contamination monitoring solutions
Contamination monitoring for cleanrooms and production environments with air, liquid, microbial, gas and molecular measurement systems, as well as associated software.
Pharmaceutical monitoring
Flexible, modular and turnkey cleanroom monitoring with particle and microbiological detection, data acquisition, reporting and data management in accordance with 21 CFR Part 11.
PMS® Service: Repair & Calibration
Calibration, verification/validation, reset to factory standards, calibration certificates, preventive maintenance, technical and software support, as well as inspections and on-site services.
CAS Clean-Air Services
Cleanroom qualification, thermal process validation, flow visualization, and calibration of anemometers and volumetric flow measurement hoods, supplemented by documentation according to applicable requirements.
PMS™ Project Team
Project support from conception to completion with risk assessment, equipment monitoring, design specifications, validation, project management, user training and application support.
PMS™ Training
Training and coaching for contamination control with basic and advanced courses, on-site trainings, in-company seminars and one-on-one coaching on cleanroom, sterility and laboratory topics.
Consulting and training services
Consulting and coaching for contamination control, quality risk management, sterility assurance, manufacturing procedures, documentation, operating workflow and the microbiology laboratory.
Particle counters for air
Cleanroom particle counters, condensation particle counters, 0.1-micrometer air particle counters, handheld particle counters, aerosol splitters and particle counting software for air monitoring and certification.
Particle counters for liquids
DI-water and chemical particle counters, highly sensitive liquid particle counters, sample collectors, solution for USP 788 and related analysis software for liquid monitoring.
Microbial contamination monitors
Air spore samplers and active microbiological sample collectors for cleanroom and environmental monitoring, including mobile and remotely operated systems, as well as software.
Particle counters for compressed gas
Particle and contamination monitoring for process gases with a high-pressure diffuser, compressed gas adapters and a high-pressure gas sensor system for ultra-pure gases.
Software / data management
Software for particle counting, liquid particle counters and environmental monitoring with data analysis, automatic report generation, real-time and historical data, and data integrity.
Trust & reputation

ranQ Trust Score of Particle Measuring Systems AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Particle Measuring Systems AG scores 63.9 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.70.824%
  • 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.27.910%
  • 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.88.08%
Particle Measuring Systems 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%
Particle Measuring Systems 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%
Particle Measuring Systems AG scores 62.9 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 35.62.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Particle Measuring Systems AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 2 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Reinluftweg 1
9630 Wattwil

At a glance

Legal form
Corporation
UID
CHE-106.406.281
Founded
1989 · 37 years
Last commercial register change
April 29, 2026
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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