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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTesting & Inspection CentersKilchberg ZhPERGAM-SUISSE AG
PERGAM-SUISSE AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

PERGAM-SUISSE AG develops and manufactures equipment and provides services for detecting natural gas (methane) leaks. Its product range includes stationary, handheld, vehicle-mounted and airborne laser methane detectors using TDLAS technology, and it offers inspection services such as aerial gas pipeline and powerline inspections.

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Offering

Products & services

Industry:Testing & Inspection Centers
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3.9/5

PERGAM-SUISSE AG

Mechanical Engineering Industry
✓ Offered7
Gas Leak Detectors
Stationary, vehicle-based, aircraft-based, UAV and handheld laser detectors for methane; LMS, SELMA, ALMA, LMC/LMF, LMA and portable sniffers for remote measurement and leak detection.
Gas Pipeline Inspection Service
Airborne inspection of gas pipelines for methane leak detection with the ALMA detector, including mission planning, flight along the approved route and a graphic report with GPS reference.
Power Line Inspection Service
Airborne inspection of high-voltage power lines and substations in UV, infrared and visible spectrum with a gyro-stabilized platform and a photographic, GPS-supported report.
Landfill Methane Inspection Service
UAV inspection of landfills to capture anthropogenic methane emissions with the LMC laser detector, planned flight route and a graphic report with GPS references and timestamps.
OGI Cameras
Optical gas imaging cameras for automatic detection, colour visualisation and quantification of methane, SF6 and other industrial gases as stationary or handheld systems.
Smart laser methane detector
Compact, portable methane detector with camera, cloud data transmission, self-check and automatic calibration for recurring leak inspections.
Laser Methane Ammonia
Portable ammonia detector for indoor and outdoor inspections with TDLAS technology, measuring range up to 50,000 ppm•m, automatic calibration and battery operation.
Trust & reputation

ranQ Trust Score of PERGAM-SUISSE AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

PERGAM-SUISSE AG scores 49.8 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.68.224%
  • 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.17.610%
  • 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.35.08%
PERGAM-SUISSE AG scores 85.5 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.55.07%
PERGAM-SUISSE AG scores 83.3 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).83.322%
PERGAM-SUISSE AG scores 91.4 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 35.91.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

PERGAM-SUISSE AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Dorfstrasse 7
8802 Kilchberg Zh
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-109.951.014
Founded
2002 · 24 years
Last commercial register change
December 18, 2024
Employees
1 to 10
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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