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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryCrafts & TradesElectricianSt. GallenA. Lehmann Elektro AG
A. Lehmann Elektro AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

A. Lehmann Elektro AG plans, installs and maintains electrical systems and supplies building automation, ICT and telecommunications solutions as well as photovoltaic systems and e-mobility charging infrastructure. The company also performs periodic device testing, provides remote support and ongoing maintenance services.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Electrician
✓ Offered12
Building services
Planning, installation and maintenance of electrical building systems; solutions for residential and commercial buildings, as well as security, multimedia and telematics systems.
Building automation
Automated processes for home and workplace; planning and implementation of smart buildings and building automation.
Industrial automation
Consulting and tailored automation for industrial applications; planning and implementation of automated processes as required.
Active energy management
Solutions for efficient, environmentally friendly and cost-effective energy consumption, including battery storage and self-consumption optimization.
Photovoltaic systems
Planning and installation of PV systems on roofs; assessment of profitability using the solar calculator.
E-mobility
Home charging stations, public charging stations and charging services for electric vehicles; solutions for private customers, companies and organisations.
Electrical planning
Structured planning for electrical projects; from technical development to preparation of implementation.
Electrical installation
Professional execution of electrical installations in buildings; work for safety, function and use in the home.
Service and maintenance
24/7 service, maintenance and support for customer systems; monitoring during ongoing operations.
Equipment testing
Periodic testing of electrical devices, with support for questions relating to the legally required safety inspection.
ICT solutions
Design, build and maintenance of secure IT and telecommunications environments; connected infrastructure for businesses and households.
ICT products and services
Products and services for IT and telecommunications, including remote maintenance and support in case of problems.
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4.2/5

A. Lehmann Elektro AG

Trust & reputation

ranQ Trust Score of A. Lehmann Elektro AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of November 2026

A. Lehmann Elektro AG scores 72.7 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.80.624%
  • 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.55.910%
  • 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%
A. Lehmann Elektro AG scores 75.2 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.79.212%
  • 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%
A. Lehmann Elektro AG scores 88.3 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).88.322%
A. Lehmann Elektro AG scores 58.4 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 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.16.74%
Qualifications+0.00

A. Lehmann Elektro AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 8 customer reviews. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle58
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

July 4, 2025Media
12 Lernende – 12 erfolgreich – 12 bleiben im Betrieb!
gossau24.ch
July 8, 2024Media
Führungswechsel bei der «A. Lehmann Elektro AG»
appenzell24.ch
July 1, 2024Media
Führungswechsel bei A. Lehmann Elektro AG
gossau24.ch
August 14, 2019Media
Lehmann Elektro leitet Nachfolgeregelung ein
inside-it.ch

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Location

Schuppisstrasse 3
9016 St. Gallen
Opening hours
Mon
07:30 - 11:45, 13:00 - 17:00
Tue
07:30 - 11:45, 13:00 - 17:00
Wed
07:30 - 11:45, 13:00 - 17:00
Thu
07:30 - 11:45, 13:00 - 17:00
Fri
07:30 - 11:45, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-427.302.039
Founded
2018 · 8 years
Last commercial register change
July 13, 2018
Employees
11 to 20

Active in 1 of 26 cantons

  • SGSt. Gallen
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.
76.0
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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