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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationBaarThomas Lüem Partner AG
Thomas Lüem Partner AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Thomas Lüem Partner AG is an engineering firm for building services providing electrical and overall planning, building automation, and technical coordination and consultancy. Services also include fire-protection testing and quality assurance, photovoltaics and electromobility solutions, plus expert reports and testing.

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Products & services

Industry:Electrical Planning & Installation
✓ Offered
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Thomas Lüem Partner AG

9
Electrical planning
Comprehensive engineering services for power and low-current systems, communications and security technology, as well as artificial lighting design.
Building automation
Conceptual design and planning of building automation as the interface of all technical trades, with solutions for easy operation and reliable performance.
Fire protection
Technical and structural fire protection, fire protection planning, as well as QSS fire protection with in-house specialist planning and advice for external clients.
Energy consulting
Concept and implementation of photovoltaic power plants, battery storage systems, site networks, charging parks, and backup power systems.
BIM planning
BIM planning and consulting with clear objectives, compliance with BIM requirements, and digital foundations for design, construction and operation.
Client representation
Client representation, expert reports, project reviews, and quality assurance for technical trades.
Lighting design
Artificial lighting design as part of electrical engineering work for demanding architecture and technical installations.
E-mobility & charging infrastructure
Planning of charging infrastructures for passenger cars and trucks, as well as charging parks, within the scope of energy consulting.
Photovoltaic systems
Concept and implementation of photovoltaic power plants and PV systems as part of energy consulting.
Trust & reputation

ranQ Trust Score of Thomas Lüem Partner AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Thomas Lüem Partner AG scores 59.3 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.75.024%
  • 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.40.910%
  • 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.35.08%
Thomas Lüem Partner AG scores 95.5 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.82.07%
Thomas Lüem Partner 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%
Thomas Lüem Partner AG scores 80.0 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 35.80.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Thomas Lüem Partner 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 4 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 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Blegistrasse 3
6340 Baar
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-109.075.418
Founded
2001 · 25 years
Last commercial register change
July 24, 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.100.03%
    • Full methodology

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