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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryIndustryWatch IndustryChiassoTan SA
Tan SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of TAN SA is the development and production of watches, particularly the manufacture of private label watches and watch assembly. The company also offers services such as design development, technical fine-tuning and the production of custom-made watches. The watches are produced as "Swiss Made" and are characterized by the highest quality.

AI-generated
Offering

Products & services

Industry:Watch Industry
✓ Offered6
Private-label watch design and production
Design, development of prototypes, serial production and delivery of private-label watches; selection of components, movements and materials according to the client’s requirements.
Watch assembly
Assembly and finishing service T2 and T3 for watches with quartz or automatic movements, with technical tests and quality checks during the process.
Promotional watches
Customisation of small quantities of watches with the customer’s logo for marketing purposes, corporate events or promotional campaigns.
Quality control of the customer’s watches
Inspection and testing of watches in every stage of the production process, including with the customer’s direct presence or that of professionals they trust.
Storage of components and watches
Warehousing on behalf of the customer of components and finished watches in view of future production runs and subsequent operational phases.
After-sales support for watches
Technical after-sales support for customers, with support from TAN SA technicians at competitive prices.
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4.0/5

Tan SA

Trust & reputation

ranQ Trust Score of Tan SA: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Tan SA scores 56.8 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.73.124%
  • 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.35.310%
  • 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.35.08%
Tan SA scores 85.5 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%
Tan SA 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%
Tan SA scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Tan SA reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Piazza Boffalora 4
6830 Chiasso

At a glance

Legal form
Corporation
UID
CHE-108.041.492
Founded
1982 · 44 years
Last commercial register change
July 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.
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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