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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesResearch & DevelopmentDietikonContrec AG
Contrec AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of CONTREC AG is the development, manufacture and distribution of measuring instruments and systems for the analysis of gases, particles and aerosols in various environments, including immission and emission measurements, workplace hygiene and environmental monitoring. The company offers a wide range of products, including gas meters, fine dust meters, aerosol generators, gas warning devices and mass flow controllers, which are used in various industries such as industry, environment and research.

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Offering

Products & services

Industry:Research & DevelopmentMechanical Engineering Industry
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3.9/5

Contrec AG

✓ Offered5
Environmental monitoring
Immission and emission gas measurement systems, fine dust measuring devices, instruments for measuring nanoparticles and black carbon, as well as portable and mobile dust measurement instruments.
Gas detectors and gas warning systems
Single- and multi-gas measuring instruments, VOC measuring devices, stationary gas sensors for industrial plants and heating systems, alarm control units, and equipment for occupational hygiene.
Gas flow control
Mass Flow Controllers for gases and Reference Gas Flow Meters for the control and reference measurement of gas flows.
Kjeldahl nitrogen determination
Kjeldahl analytics, Autosampler KjelROC, and consumables for nitrogen determination in analytical laboratories.
Service and maintenance
On-site repairs, maintenance and calibrations, service contracts for measuring instruments and measurement networks, as well as software installation, configuration and maintenance.
Trust & reputation

ranQ Trust Score of Contrec AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Contrec AG scores 51.1 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.60.724%
  • 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.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.35.08%
Contrec 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%
Contrec 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%
Contrec AG scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Contrec AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 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
4
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle44
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Riedstrasse 6
8953 Dietikon
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-107.591.057
Founded
1994 · 32 years
Last commercial register change
September 29, 2025
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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