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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryArts, Culture & RecreationSports & Recreation InstructionAdliswilStark Jiu-Jitsu Zürich
Stark Jiu-Jitsu Zürich Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Stark Jiu-Jitsu is the training and instruction of Brazilian Jiu-Jitsu in a fitness studio in Zurich, Switzerland. The company offers training for all levels, from beginners to experienced practitioners, and focuses on a friendly and welcoming atmosphere.

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Products & services

Industry:Sports & Recreation Instruction
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4.3/5

Stark Jiu-Jitsu Zürich

✓ Offered
10
Brazilian Jiu-Jitsu classes
Brazilian Jiu-Jitsu classes for all levels, with Basics, Foundations, General, Gi and NoGi classes as well as open training and sparring.
Judo classes
Weekly judo classes for beginners and advanced students, focusing on stand-up skills and led by experienced judo black belts.
Kids Jiu-Jitsu classes
Kids classes for children aged 3–6 and 7–12, offered in collaboration with Vera Brazilian Jiu-Jitsu and coached by Coach Maksym.
Private coaching
Private training on request with available coaches, for female and male coaches from Purple Belt and higher.
Seminars
Seminars with guest coaches, longer than regular classes, open to beginners and advanced students; hosted regularly in the gym.
Women’s Open Mat
Women’s-only Open Mat for beginners and advanced students, with entry for female non-members for 5 CHF per class.
Open Mat
Open training times for members and visitors for sparring and drilling in Gi or NoGi; free on Friday evenings as well as on Saturdays and Sundays.
Memberships
Memberships with monthly, two-month, six-month and annual pricing for students and non-students, including Unlimited Training and an Intro Package.
Trial class
Free Trial Week with unlimited training for one week for new participants.
Vouchers
Vouchers for memberships or any cash amount of your choice as a gift.
Trust & reputation

ranQ Trust Score of Stark Jiu-Jitsu Zürich: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Stark Jiu-Jitsu Zürich scores 98.3 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.97.024%
  • 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.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%
Stark Jiu-Jitsu Zürich scores 58.3 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.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%
Stark Jiu-Jitsu Zürich 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%
Stark Jiu-Jitsu Zürich scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Stark Jiu-Jitsu Zürich reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 106 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 106 reviews across all connected sources

Sources
GGoogle5106
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Zelgstrasse 76
8134 Adliswil
Opening hours
Mon
11:45 - 13:45, 17:45 - 21:00
Tue
17:45 - 21:00
Wed
11:45 - 13:45, 17:45 - 21:00
Thu
17:45 - 21:00
Fri
11:45 - 13:45, 17:45 - 21:00
Sat
11:45 - 13:45
Sun
11:45 - 13:45

At a glance

Legal form
Association
UID
CHE-459.786.374
Founded
2023 · 3 years
Last commercial register change
September 30, 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.
73.0
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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