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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesMachine repairHergiswil NwWinterberg & Mac Kay Powerservice AG
Winterberg & Mac Kay Powerservice AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Winterberg & Mac Kay Powerservice AG provides gas turbine maintenance services, including inspections, repairs and on-site support. The company also offers maintenance consulting and training for Alstom GT24/26 turbines.

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Service area

Offering

Products & services

Industry:Machine repair
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4.1/5

Winterberg & Mac Kay Powerservice AG

✓ Offered2
Gas Turbine Services
A and B inspections as well as C inspections on gas turbines, outage management, mechanical support, lead supervision, advisory, consulting and quality management.
On-Site Support
Advisory and on-site support for C inspections, A/B inspections, repairs on a shut-down unit and consulting on gas turbine services, also for Alstom legacy GT24/26.
Trust & reputation

ranQ Trust Score of Winterberg & Mac Kay Powerservice AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Winterberg & Mac Kay Powerservice AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Winterberg & Mac Kay Powerservice AG scores 83.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.95.212%
  • 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.55.07%
Winterberg & Mac Kay Powerservice AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Winterberg & Mac Kay Powerservice AG scores 6.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.6.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Winterberg & Mac Kay Powerservice AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Seestrasse 129
6052 Hergiswil Nw

At a glance

Legal form
Corporation
UID
CHE-346.083.044
Founded
2013 · 13 years
Last commercial register change
December 6, 2022
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • NWHergiswil (NW)
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.100.06%
  • 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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