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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesOther Service IndustriesEglisauGroupstema AG
Groupstema AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Groupstema AG operates the MotorMaster brand and supplies new, refurbished and used engines, transmissions and ancillary parts for cars, trucks and buses. The company also offers engine overhauls, tested replacement engines and solutions with warranty.

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Products & services

Industry:Other Service IndustriesTechnical Consulting & Engineering
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Groupstema AG

Automotive & Vehicle Trade
Wholesale - Machinery & Technical Equipment
✓ Offered3
Engine and Transmission Solutions
Replacement engines, remanufactured and tested used engines plus transmissions and ancillary parts for cars, trucks and buses, with delivery throughout Switzerland.
Engine Reconditioning
Engine reconditioning for cars, trucks and buses with cylinder honing, new valves and pistons, checked valve guides, renewed seals, timing chain and oil pump.
Warranty and Replacement Service
Warranty on used, new and reconditioned parts; in case of a defect, free equivalent replacement including delivery within the agreed warranty period.
Trust & reputation

ranQ Trust Score of Groupstema AG

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Website authority, Media authority

Data basis 50% · As of October 2026

Groupstema 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.
x
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%
Groupstema AG scores 53.4 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.25.012%
  • 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%
Groupstema AG scores 83.3 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).83.322%
Groupstema AG has no value in the Visibility area of the ranQ Trust Score because no data is available. The area carries 8% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Website authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 50%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Website authority, Media authority. As of October 2026.

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

Knowledge

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Location

Stampfistrasse 7
8193 Eglisau

At a glance

Legal form
Corporation
UID
CHE-426.570.465
Founded
2025 · 1 year
Last commercial register change
April 16, 2026
Employees
1 to 10
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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