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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringOpfikonARNOLD Engineering und Beratung AG für EMV und Blitzschutz
ARNOLD Engineering und Beratung AG für EMV und Blitzschutz Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of ARNOLD Engineering and Consulting is consulting, conception, measurement, analysis, support, control, investigation, testing and information in the fields of Electromagnetic Compatibility (EMC) and Lightning Protection, particularly in the areas of: Installation technical services in the field of EMC, NIS field measurements, NIS simulations, network analyses and interference analyses, Plant design, expert opinions, system checks, lightning and overvoltage protection consulting, Training and control of electrical low-voltage installations according to NIV, Measurement of conducted disturbances and network quality analyses in the low-voltage network up to 1000V.

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Offering

Products & services

Industry:Technical Consulting & Engineering
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4.1/5

ARNOLD Engineering und Beratung AG für EMV und Blitzschutz

✓ Offered5
EMC consultancy and services
Consulting and support for EMC problems, installation and network assessment, fault analysis, identification of noise sources, system review, system optimization, NIS simulation and standards consulting.
Lightning protection consultancy and design
Consulting and support for external and internal lightning protection measures, design of lightning protection systems, on-site execution support, coordination, periodic inspections, consulting on surge protection and damage analysis.
Measurements and network analysis
Measurements in low- and high-frequency ranges, emission measurements, network quality analyses, troubleshooting, field measurements, shielding attenuation and earthing measurements, as well as customer-specific measurement campaigns.
EMC and lightning protection concepts
Concepts for fault- and emission-reduced electrical installations, surge protection, earthing, EMC in data centers, equipotential bonding, switchgear combinations, tender and execution specifications.
EMC and lightning protection training
Training sessions and workshops on earthing and equipotential bonding, external and internal lightning protection, EMC for office, commercial and industrial buildings, frequency converters and electrical installations.
Trust & reputation

ranQ Trust Score of ARNOLD Engineering und Beratung AG für EMV und Blitzschutz: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 96% · As of October 2026

ARNOLD Engineering und Beratung AG für EMV und Blitzschutz scores 61.4 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.76.724%
  • 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.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.35.08%
ARNOLD Engineering und Beratung AG für EMV und Blitzschutz scores 89.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
ARNOLD Engineering und Beratung AG für EMV und Blitzschutz 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%
ARNOLD Engineering und Beratung AG für EMV und Blitzschutz scores 31.4 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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

ARNOLD Engineering und Beratung AG für EMV und Blitzschutz reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 5 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 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Wallisellerstrasse 75
8152 Opfikon
Opening hours
Mon
07:30 - 12:00, 13:00 - 16:45
Tue
07:30 - 12:00, 13:00 - 16:45
Wed
07:30 - 12:00, 13:00 - 16:45
Thu
07:30 - 12:00, 13:00 - 16:45
Fri
07:30 - 12:00, 13:00 - 16:45
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-244.369.339
Founded
2011 · 15 years
Last commercial register change
November 5, 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.100.06%
  • 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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