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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryTransport & LogisticsMobility ServicesRabiusGreinaBus GmbH
GreinaBus GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of GreinaBus GmbH is the provision of passenger transport services, in particular: * Call taxi services in the regions of Surselva, Val Sumvitg, Val Russein and other Alpine valleys * Organization and implementation of hiking and mountain tours, including hut and mountain services * Student transportation and scheduled services (local bus + call bus Sumvitg) on behalf of PostAuto AG * Special transport services such as snow tour bus and Lukmanier pass traffic.

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Offering

Products & services

Industry:Mobility Services
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4.1/5

GreinaBus GmbH

✓ Offered8
RUF-TAXI Service Surselva
RUF-TAXI rides in Surselva, available year-round; with regional connections and telephone booking.
BusAlpin Val Sumvitg
Alpine taxi and summer transport in Val Sumvitg; connection for excursions and trips in the Greina region.
RUF-TAXI Val Russein
RUF-TAXI rides in Val Russein with published fares and regional transport connections.
RUF-TAXI to Alp Glivers, Alp Naustgel and Alp da Schlans
RUF-TAXI connections to Alp Glivers, Alp Naustgel and Alp da Schlans with published fares.
Hut service to SAC huts
Transport to the SAC huts Terri, Cavardiras, Punteglias and Medelser with published fares.
Snow tour bus Lukmanierpass
Seasonal snow tour bus to the Lukmanierpass for winter tours and transfers.
School transport
School transport for regional passenger services in the catchment area of Sumvitg and Surselva.
Line 90.474 (Local bus + on-call bus Sumvitg) for PostAuto AG
Local bus and on-call bus operation on line 90.474 on behalf of PostAuto AG.
Trust & reputation

ranQ Trust Score of GreinaBus GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

GreinaBus GmbH scores 70.7 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.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.95.08%
GreinaBus GmbH scores 67.8 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.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.55.07%
GreinaBus GmbH 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%
GreinaBus GmbH 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

GreinaBus GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «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

Via Surrein 34
7172 Rabius

At a glance

Legal form
Limited Liability Company
UID
CHE-346.768.768
Founded
2021 · 5 years
Last commercial register change
September 24, 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.
88.0
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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