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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryTourism & HospitalityRestaurantsSt. GallenZimmermann Gastronomie GmbH
Zimmermann Gastronomie GmbH Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of the company 'Wirtschaft zur alten Post' is gastronomy, specifically operating a restaurant with various rooms, including a champagne and coffee bar, a guest room and a Stübli, as well as a street café in the summer. The company offers food and beverages and has a kitchen that operates during specific opening hours.

AI-generated
Offering

Products & services

Industry:Restaurants
✓ Offered4
Restaurant operation
Kitchen with a menu and menu suggestions, St. Galler Gaststube, Krüsi Stübli and the champagne and coffee bar; in summer, additionally with a street café.
Wine selection
A carefully selected range of wines with wine list, cult wines, rare wines, specials and new releases; partly exclusive imports from wineries for Switzerland.
Event catering and private events
Tailor-made events at your chosen location, with offers such as «Book your Cook» and «Wine & Sein», based on cuisine or the wine cellar.
Sunday event «Simsala Sonntag»
Sunday event with Menu Surprise, offered on Sundays with separate kitchen opening hours.
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4.4/5

Zimmermann Gastronomie GmbH

Trust & reputation

ranQ Trust Score of Zimmermann Gastronomie GmbH: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 100% · As of October 2026

Zimmermann Gastronomie GmbH scores 91.1 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.84.524%
  • 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%
Zimmermann Gastronomie GmbH scores 83.0 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.100.012%
  • 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%
Zimmermann Gastronomie GmbH scores 86.7 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).86.722%
Zimmermann Gastronomie GmbH scores 28.4 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 35.40.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.16.74%
Qualifications+0.00

Zimmermann Gastronomie GmbH reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 431 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.7
of 5

Aggregated from 431 reviews across all connected sources

Sources
GGoogle4.7431
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

August 14, 2025Media
«Man muss nicht verrückt sein, aber es hilft»: Seit 25 Jahren führt Alexander Zimmermann die alte Post – eine der Erststockbeizen St.Gallens
tagblatt.ch

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Comparisons

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Location

Gallusstrasse 4
9000 St. Gallen
Opening hours
Mon
Closed
Tue
11:30 - 14:00, 17:30 - 00:00
Wed
11:30 - 14:00, 17:30 - 00:00
Thu
11:30 - 14:00, 17:30 - 00:00
Fri
11:30 - 14:00, 17:30 - 00:00
Sat
11:30 - 14:00, 17:30 - 00:00
Sun
11:30 - 14:00, 16:30 - 22:30

At a glance

Legal form
Limited Liability Company
UID
CHE-109.062.232
Founded
2001 · 25 years
Last commercial register change
November 2, 2018
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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