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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationWabernLemon Group AG
Lemon Group AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Walther & Fankhauser AG is the planning and execution of electrical installations, including high and low voltage installations, telematics and building automation.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
✓ Offered7
Electrical design
Careful planning of electrical installations for new-build and renovation projects, with advice on current and future needs and solutions for safety and cost-effectiveness.
Electrical installation
Installation of electrical systems in residential, industrial and commercial properties as well as in new-build and renovation projects, including repairs and small installations by customer service.
Telematics
Consulting and installation of telematics solutions that link telephony and IT and are designed for the facility's future needs.
Building automation
Building automation for smart living, controlling lighting, heating and shutters via a touch panel or mobile, with easy reprogramming when changes are made.
Lighting
Planning and implementation of lighting for indoor rooms and outdoor areas using different luminaires and technologies, taking into account needs and energy efficiency.
Event electrical installations
Electrical installations for events of all kinds, from small garden parties to major festivals, with readily available solutions for increased power requirements.
Shop for electrical supplies
Sale of electrical supplies such as light sources, batteries, extension cables and installation materials, as well as acceptance of defective luminaires for repair.
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4.4/5

Lemon Group AG

Trust & reputation

ranQ Trust Score of Lemon Group AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

Lemon Group AG scores 77.8 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.71.824%
  • 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.78.610%
  • 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.95.08%
Lemon Group 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%
Lemon Group 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%
Lemon Group AG scores 34.3 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 35.34.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Lemon Group AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 21 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
4.5
of 5

Aggregated from 21 reviews across all connected sources

Sources
GGoogle4.521
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Seftigenstrasse 300
3084 Wabern
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.148.199
Founded
1988 · 38 years
Last commercial register change
June 8, 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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