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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryArts, Culture & RecreationSports & Recreation InstructionLucerneKSI Luzern GmbH
KSI Luzern GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company is the operation of a karate school, where children and adults can receive karate lessons. The school offers various courses, including Pre-Bonsai Karate for children from 3 years old, Bonsai Karate for children aged 4-6, Karate for children aged 7-13, Karate for young people aged 14-17, and Karate for adults from 18 years old. Additionally, special courses such as Fit4All, children's birthday parties, self-care courses, and violence prevention courses are also offered.

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Products & services

Industry:Sports & Recreation Instruction
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4.5/5

KSI Luzern GmbH

7
Karate for Adults
Karate courses for adults, with beginner courses, a flexible schedule, a free trial session and private lessons by arrangement.
Karate for Youth
Karate courses for youth from 14 years old, with beginner courses, a flexible schedule, a free trial session and private lessons by arrangement.
Karate for Children
Karate courses for children from 7 years old, with beginner courses, a flexible schedule, a free trial session and private lessons by arrangement.
Pre-Bonsai Karate
Parent-child karate from age 3, playful movements and body postures, shared karate practice, promoting concentration, physical coordination, self-confidence and social behaviour.
Bonsai Karate
Karate for children aged 4 to 6, playful introduction to basic techniques, rituals and respect; topics such as behaviour in road traffic and conflicts are covered.
Fit4All
Fitness classes for women of all ages and fitness levels, with dumbbells, kettlebells, resistance bands, steppers and bodyweight exercises.
Violence Prevention
Violence prevention courses for children and students, with goals such as setting boundaries, acting with confidence, recognizing dangerous situations and helping others.
Trust & reputation

ranQ Trust Score of KSI Luzern GmbH: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

KSI Luzern GmbH scores 96.2 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.93.424%
  • 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%
KSI Luzern 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%
KSI Luzern GmbH 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%
KSI Luzern GmbH scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

KSI Luzern GmbH reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.9 out of 5 stars from 174 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
4.9
of 5

Aggregated from 174 reviews across all connected sources

Sources
GGoogle4.9174
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Eisfeldstrasse 2a
6005 Lucerne
Opening hours
Mon
16:00 - 21:30
Tue
14:00 - 21:30
Wed
16:00 - 21:30
Thu
14:00 - 21:30
Fri
14:00 - 21:30
Sat
08:30 - 12:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-115.468.039
Founded
2010 · 16 years
Last commercial register change
November 29, 2024
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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