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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryPublic Administration & EducationContinuing Education InstitutesLuganoTESL Sagl
TESL Sagl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is the implementation of language courses, particularly English, German, French and Spanish courses, tailored to the specific needs of companies and their employees. The courses focus on real work situations and aim to help participants improve their communication skills in a professional context. The company also offers language assessments, translations and language consulting.

AI-generated
Offering

Products & services

Industry:Continuing Education Institutes
✓ Offered5
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4.3/5

TESL Sagl

Language courses
English, German and French courses online and in person, private or group lessons for children, teenagers, adults and companies, also with native-speaking teachers.
Cambridge exam preparation
Preparation courses and mock exams for Cambridge English tests, including exam registration and handling at the official centre in Ticino.
IELTS test preparation
IELTS test preparation courses to certify English proficiency, with one-to-one or group lessons for all ages.
Language stays
Study trips and language stays abroad in English-, German- and French-speaking countries, with full immersion and on-site courses.
Language courses and services for businesses
English, French, German and Spanish lessons for businesses, with translation services and language consulting in numerous languages.
Trust & reputation

ranQ Trust Score of TESL Sagl: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

TESL Sagl scores 87.0 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.80.724%
  • 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.91.810%
  • 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%
TESL Sagl scores 70.2 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.70.212%
  • 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%
TESL Sagl 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%
TESL Sagl scores 34.3 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 35.34.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

TESL Sagl reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 36 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
4.7
of 5

Aggregated from 36 reviews across all connected sources

Sources
GGoogle4.736
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Via Carlo Maderno 9
6900 Lugano
Opening hours
Mon
09:00 - 18:00
Tue
09:00 - 18:00
Wed
09:00 - 18:00
Thu
09:00 - 18:00
Fri
09:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-182.684.876
Founded
2020 · 6 years
Last commercial register change
May 23, 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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