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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryIndustryMedical technology manufacturerDiepoldsauZünd Präzisionsoptik AG
Zünd Präzisionsoptik AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Zünd Präzisionsoptik AG develops and manufactures custom planar optical components, including compact and microprisms as well as other prism types. Its services also include cementing and assembling optical components into modules.

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Service area

Offering

Products & services

Industry:Medical technology manufacturer
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4.1/5

Zünd Präzisionsoptik AG

✓ Offered2
Plan optics
Micro-optics, plan optics up to 50 mm, prisms, filters, mirrors and special optics made of optical glass or quartz, from prototype through to series production.
Bonding of optical components
UV bonding and assembly of optical components into customer-specific assemblies, including support with bonding issues of optical components.
Trust & reputation

ranQ Trust Score of Zünd Präzisionsoptik AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of November 2026

Zünd Präzisionsoptik AG scores 65.0 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.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.78.08%
Zünd Präzisionsoptik 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%
Zünd Präzisionsoptik AG scores 88.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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).88.322%
Zünd Präzisionsoptik AG scores 41.9 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 35.77.14%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.6.74%
Qualifications+0.00

Zünd Präzisionsoptik AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 customer reviews. As of November 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.

Press

Media

December 8, 2018Media
Mit Präzisionsoptik im Hoch
rheintaler.ch

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Location

Prismastrasse 5
9444 Diepoldsau
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.793.218
Founded
1975 · 51 years
Last commercial register change
March 26, 2026
Employees
1 to 10

Active in 1 of 26 cantons

  • 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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