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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialized Construction ActivitiesGlattbruggE. Kessler AG
E. Kessler AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

E. Kessler AG is an electrical services provider offering electrical installations, maintenance, communication and IT systems, and automation solutions such as KNX and PLC (SPS) controls. Its services also include switchgear construction and household-appliance service and sales within the Elektrobaer Group.

AI-generated
Offering

Products & services

Industry:Specialized Construction Activities
✓ Offered8
Electrical installations
Electrical installations for new builds, conversions and renovations; strong and weak current, switchgear, fault rectification after inspections.
24h Electric service & on-call duty
Troubleshooting, repairs and maintenance work on electrical installations; luminaire installation, lighting service, intercom systems and emergency on-call duty outside office hours.
Communication & telematics
Universal building cabling, fibre optic technology, WLAN solutions and rack construction; VoIP phone systems, intercom systems, video telephony as well as support and service.
Switchgear construction
Planning and manufacture of main and sub-distribution boards, control panel construction as well as engineering and schematic drawing; installation, connection and testing of switchgear.
Building automation
PLC controllers for building services and complex building systems; cross-discipline logic, visualisation and operational data acquisition.
Smart home solutions
KNX-based home control for lighting, shading, heating, climate and security; visualisation via smartphone, tablet or wall panel, integration of PV and e-mobility.
E-mobility
Planning, installation and maintenance of wallboxes and charging infrastructure for single-family homes, multi-family houses, underground garages and commercial sites; load management and grid operator registration.
Electrical inspections (SiNa)
Periodic inspections, acceptance inspections, fault rectification and issuing of the safety certificate (SiNa) for electrical installations.
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4.2/5

E. Kessler AG

Trust & reputation

ranQ Trust Score of E. Kessler AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

E. Kessler AG scores 68.5 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.67.924%
  • 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.68.910%
  • 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.70.08%
E. Kessler AG scores 90.9 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%
E. Kessler 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%
E. Kessler AG scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

E. Kessler AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.4 out of 5 stars from 14 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
4.4
of 5

Aggregated from 14 reviews across all connected sources

Sources
GGoogle4.414
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Wallisellerstrasse 19
8152 Glattbrugg
Opening hours
Mon
07:30 - 12:00, 13:00 - 16:30
Tue
07:30 - 12:00, 13:00 - 16:30
Wed
07:30 - 12:00, 13:00 - 16:30
Thu
07:30 - 12:00, 13:30 - 16:30
Fri
07:30 - 12:00, 13:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.941.696
Founded
1981 · 45 years
Last commercial register change
November 26, 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.85.03%
    • Full methodology

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