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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryChemical IndustryBischofszellCorpac AG
Corpac AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Corpac AG is corrosion protection through the development, production and application of VpCI products (Volatile Corrosion Inhibitors), particularly based on Cortec VpCI products. The company offers comprehensive solutions for corrosion protection, including consulting, production, manufacturing, seminars, packaging support, analysis and diagnostic services.

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Products & services

Industry:Chemical Industry
✓ Offered6
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4.1/5

Corpac AG

VpCI corrosion protection solutions
VpCI corrosion protection solutions for packaging, internal manufacturing processes, surface preparation and cleaning, preservation, storage, export shipment, as well as repair and maintenance.
Consulting
Consulting on selecting suitable VpCI products and on correct application, based on customer information, by phone and, if needed, in person on site.
Packaging support
Process support and packaging instructions for VpCI applications, including product selection, application, on-site training, test materials and documented packaging procedures.
Analysis & diagnosis
Analysis of the current condition and diagnosis of sources of error in corrosion protection, including support for production, storage and shipping processes, as well as suitable VpCI products.
Production – Custom conversion
Small batches and customer-specific custom conversion of VpCI films, VpCI papers, VpCI foam, crate covers and cut-to-size pieces in individual formats.
Seminars
Seminars and courses on VpCI basics, how it works, products, correct application, surface preparation, preservation, packaging and individual solution approaches.
Trust & reputation

ranQ Trust Score of Corpac AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Corpac AG scores 63.1 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.78.124%
  • 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.49.510%
  • 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%
Corpac AG scores 89.3 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.70.07%
Corpac AG 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%
Corpac AG scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Corpac 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 6 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 6 reviews across all connected sources

Sources
GGoogle56
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Fabrikstrasse 26
9220 Bischofszell
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.428.106
Founded
1996 · 30 years
Last commercial register change
July 25, 2016
Employees
11 to 20
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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