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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryTourism & HospitalityRestaurantsZurichHoi Koi AG
Hoi Koi AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Hoi Koi is the hospitality of guests in a restaurant specializing in sushi and modern Japanese cuisine. The company offers a variety of food and beverages, including sushi, Japanese specialties, bento boxes, shabu shabu, and a selection of wines and sakes. It also provides take-away and delivery services.

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Offering

Products & services

Industry:Restaurants
✓ Offered6
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Hoi Koi AG

Sushi restaurant
Sushi and modern Japanese cuisine with fresh preparations, open kitchen service, seasonal creations and a selection of sushi and Japanese specialities.
Lunch offer
Lunch menus with a lunch menu and bento boxes, for a quick meal during the lunch break; plus an All You Can Eat sushi lunch.
Dinner
Evening service with a complete menu selection, sushi platters, seasonal specialities and shabu shabu in the colder season.
Drinks selection
Selection of sake, aperitifs and drinks, as well as a curated range of wines and sakes to accompany the dishes.
Table reservation
Table reservations via the online reservation system for visits to the restaurant.
Delivery
Delivery of meals via an external delivery service link for take-away orders.
Trust & reputation

ranQ Trust Score of Hoi Koi AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Hoi Koi AG scores 88.3 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.79.624%
  • 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%
Hoi Koi AG scores 64.1 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.50.012%
  • 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%
Hoi Koi AG scores 85.0 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).85.022%
Hoi Koi AG scores 14.3 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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Hoi Koi AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 328 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
4.6
of 5

Aggregated from 328 reviews across all connected sources

Sources
GGoogle4.6328
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Sihlfeldstrasse 56
8003 Zurich
Opening hours
Mon
Closed
Tue
11:30 - 14:30, 17:30 - 23:00
Wed
11:30 - 14:30, 17:30 - 23:00
Thu
11:30 - 14:30, 17:30 - 23:00
Fri
11:30 - 14:30, 17:30 - 23:30
Sat
12:00 - 23:30
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-234.072.168
Founded
2023 · 3 years
Last commercial register change
February 13, 2025
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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