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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesMetal ConstructionPrattelnAerni AG
Aerni AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Aerni AG manufactures plant and apparatus components and provides sheet-metal processing and contract machining. It supplies pressure- and barrier-system solutions, bioreactors and other process equipment, and offers wine storage systems and bespoke fabrication for chemical, pharmaceutical, cosmetic and food sectors.

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Offering

Products & services

Industry:Metal Construction
✓ Offered5
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4.2/5

Aerni AG

Plant and equipment construction
Pressure vessels, bioreactors, kneading reactors, mixing vessel tanks and heat exchangers according to customer specifications; development, 3D design, fabrication and approval testing for chemical, pharma, cosmetics and food.
Contract manufacturing
Sheet metal processing, mechanical machining, welding and grinding; shearing, laser cutting, bending, rolling, turning, milling, as well as individual parts and series production.
Barrier pressure systems
Barrier pressure vessels, chemical containers, sterile vessels, customer-specific containers, seal supply systems and manual refilling pump for the chemical, pharma, bio, food and cosmetics industries.
Wine storage systems
Wine storage racks, table models, special versions, racks with drawers and pull-out shelves, LED lighting, wine coolers and display racks for wine shops, restaurants and wine cellars.
Rental of premises
Production and office areas in the commercial building from 200 m2 to max. 500 m2.
Trust & reputation

ranQ Trust Score of Aerni AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of October 2026

Aerni AG scores 72.0 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.67.924%
  • 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.68.910%
  • 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.88.08%
Aerni AG scores 92.3 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.82.07%
Aerni AG scores 86.7 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).86.722%
Aerni AG scores 26.2 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 35.45.74%
  • 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

Aerni AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.4 out of 5 stars from 14 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.4
of 5

Aggregated from 14 reviews across all connected sources

Sources
GGoogle4.414
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

April 9, 2024Media
«Extreme Positionen erhalten zu viel Gewicht»
primenews.ch

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Location

Dürrenhübelstrasse 9
4133 Pratteln
Opening hours
Mon
07:30 - 12:00, 13:30 - 16:00
Tue
07:30 - 12:00, 13:30 - 16:00
Wed
07:30 - 12:00, 13:30 - 16:00
Thu
07:30 - 12:00, 13:30 - 16:00
Fri
07:30 - 13:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.998.377
Founded
1965 · 61 years
Last commercial register change
November 9, 2022
Employees
21 to 50
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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