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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryCrafts & TradesElectricianSt. MoritzPaul Koller St. Moritz AG
Paul Koller St. Moritz AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Paul Koller St. Moritz AG provides electrical installation and multimedia services, including high- and low-voltage systems, electrical planning, switchboard construction and smart-home solutions. Additional services include safety inspections and certification, lighting design, professional audio/video and event technology, telecommunications and a Miele CompetenceCenter with related service offerings.

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Products & services

Industry:Electrician
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Paul Koller St. Moritz AG

Electrical installations
Electrical installations for construction sites, service locations and customer orders in St. Moritz, Pontresina, Samedan and Poschiavo.
Service and on-call duty
Service calls and on-call duty for faults and short-notice assignments at the locations St. Moritz, Pontresina, Samedan and Poschiavo.
Electrical planning
Design of electrical systems as part of the range of skills, alongside electrical installations, smart home, control panel construction and lighting design.
Smart home
Smart home solutions in the field of electrical installations and building technology, together with other skills such as lighting design and multimedia.
Control panel construction
Control panel construction for electrical installations and systems, complemented by inspection, safety and electrical planning.
Lighting design
Lighting design for residential buildings, commercial premises, hotels and public buildings.
Multimedia
Multimedia installations as well as audio and video technology for private and business customers.
Telecommunications
Telecommunications solutions as part of the range of skills for installations and service work.
Trust & reputation

ranQ Trust Score of Paul Koller St. Moritz AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of November 2026

Paul Koller St. Moritz AG scores 69.3 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.73.224%
  • 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.52.910%
  • 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.78.08%
Paul Koller St. Moritz AG scores 85.5 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.55.07%
Paul Koller St. Moritz 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%
Paul Koller St. Moritz AG scores 71.4 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 35.71.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Paul Koller St. Moritz AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 7 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.7
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.77
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Via dal Bagn 22
7500 St. Moritz
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.767.262
Founded
1963 · 63 years
Last commercial register change
January 16, 2025
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • GRSt. Moritz
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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