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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesOther Service IndustriesRümlingenSommerau Services AG
Sommerau Services AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Sommerau Services AG provides cross-sectional services to the institutions affiliated with Verein Sommerau and to external third parties. Core activities include financial and management accounting, HR and payroll administration, property and facility management, first‑level IT support, catering and housekeeping, as well as communication and project work.

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Offering

Products & services

Industry:Other Service Industries
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Sommerau Services AG

✓ Offered1
Services
Management, association administration, financial and operational bookkeeping, budgeting/controlling, personnel administration, payroll services, client administration, property management, IT support, gastronomy, facility services and communication.
Trust & reputation

ranQ Trust Score of Sommerau Services AG: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 88% · As of October 2026

Sommerau Services AG scores 44.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.46.424%
  • 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: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Sommerau Services AG scores 74.1 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.64.612%
  • 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%
Sommerau Services 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%
Sommerau Services AG scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Sommerau Services AG reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». The rating draws, among other things, on 3.0 out of 5 stars from 4 customer reviews. The data basis is 88%, 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
3
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle34
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Sommerau 41
4444 Rümlingen

At a glance

Legal form
Corporation
UID
CHE-476.361.716
Founded
2021 · 5 years
Last commercial register change
September 23, 2026
Employees
11 to 20
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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