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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryTourism & HospitalityRestaurantsWinterthurRestaurant zur Sonne AG Winterthur
Restaurant zur Sonne AG Winterthur Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company "Restaurant Zur Sonne" is a gastronomic establishment whose core activity is to offer traditional Swiss cuisine with fresh regional products. The restaurant offers a variety of dishes, including Rösti, Cordon Bleu, Züri-Gschnätzlets and other Swiss specialties, both for on-site consumption and for take-away sales. Additionally, the company provides rooms for private events and functions.

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Offering

Products & services

Industry:Restaurants
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4.3/5

Restaurant zur Sonne AG Winterthur

✓ Offered5
Restaurant
Swiss cuisine with fresh regional produce, traditional recipes, rösti specialities, Zürcher Gschnätzlets, veal liver, Cordon Bleu and other dishes.
Rösti d'Gass
Rösti and spätzli boxes for takeaway, with a selection of different rösti varieties; order by phone, pick up on site or via delivery and ordering platforms.
Banquets and events
Rooms for special events with Swiss cuisine, menu suggestions from about 15 people, separate menus for vegetarians or allergy sufferers, banqueting menu card.
Reservation
Online reservation as well as reservation requests by e-mail or phone; seats in the restaurant, Säli and on the terrace.
Wine list
Selection of wines for the restaurant visit, available as a separate card in PDF format.
Trust & reputation

ranQ Trust Score of Restaurant zur Sonne AG Winterthur: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

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Data basis 96% · As of October 2026

Restaurant zur Sonne AG Winterthur scores 82.8 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.69.924%
  • 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.100.010%
  • 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.100.08%
Restaurant zur Sonne AG Winterthur scores 78.3 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.83.012%
  • 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%
Restaurant zur Sonne AG Winterthur 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%
Restaurant zur Sonne AG Winterthur scores 14.3 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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Restaurant zur Sonne AG Winterthur reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.4 out of 5 stars from 741 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
4.4
of 5

Aggregated from 741 reviews across all connected sources

Sources
GGoogle4.4741
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Marktgasse 13/15
8400 Winterthur
Opening hours
Mon
Closed
Tue
Closed
Wed
11:00 - 14:30, 17:00 - 23:00
Thu
11:00 - 14:30, 17:00 - 23:00
Fri
11:00 - 14:30, 17:00 - 23:00
Sat
11:00 - 14:30, 17:00 - 23:00
Sun
11:00 - 14:30, 17:00 - 23:00

At a glance

Legal form
Corporation
UID
CHE-220.113.677
Founded
2017 · 9 years
Last commercial register change
February 2, 2017
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.100.06%
  • 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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