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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryRetail & CommerceOpticianSt. GallenGross Optik AG
Gross Optik AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Gross Optik AG is an optical practice offering vision assessments and personalised vision solutions. Its services include eyeglasses and contact lenses, fitting and adjustment, and advice on eye health and visual comfort.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Optician
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Gross Optik AG

Vision analysis and eye health check
Vision analysis to determine prescription, create a sight profile and advise on glasses or contact lenses; with optional eye health check, intraocular pressure measurement and OCT.
Glasses and visual solutions
Glasses advice and selection of visual solutions, including progressive, sun, sport, children’s, workplace, single-vision, digital and biometric lenses, plus music glasses.
Contact lens fitting and supply
Fitting, checks and supply of contact lenses, including custom, rigid, multifocal, overnight, daily and monthly lenses, plus medical lenses and myopia management.
Safety glasses
Prescription safety glasses for work and everyday use, protecting against particles, dust and chemicals; offered with Uvex and Unico models certified to EN 166.
Eyewear collections
Selected eyewear collections from independent designer labels, including frames for everyday wear, style, sport and work; with personal advice for the right glasses.
Eye health optometry
Certified eye health optometry with personal, professional advice, modern technical equipment, continuous training and independent quality checks.
Trust & reputation

ranQ Trust Score of Gross Optik AG: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of November 2026

Gross Optik AG scores 95.0 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.91.224%
  • 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%
Gross Optik AG 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%
Gross Optik AG scores 86.7 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).86.722%
Gross Optik AG scores 12.0 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 35.12.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gross Optik AG 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 68 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 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 68 reviews across all connected sources

Sources
GGoogle4.968
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Rorschacher Strasse 152
9000 St. Gallen
Opening hours
Mon
Closed
Tue
08:30 - 12:00, 13:00 - 18:30
Wed
08:30 - 12:00, 13:00 - 18:30
Thu
08:30 - 12:00, 13:00 - 18:30
Fri
08:30 - 12:00, 13:00 - 18:30
Sat
08:30 - 14:00
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-114.892.156
Founded
2009 · 17 years
Last commercial register change
October 1, 2010
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • SGSt. Gallen
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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