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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureEnvironmental engineerHerisauGreen AG
Green AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Green AG works in renewable energy and provides environmental assessments, cleanup of contaminated sites and land rehabilitation. Its services range from site assessments and planning to implementation, and it describes a proprietary gasification process for generating electricity.

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Offering

Products & services

Industry:Environmental engineerEnergy producer
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Green AG

Waste disposal
✓ Offered5
Environmental analyses
Environmental analyses for sites, as a basis for planning, remediation and restoration.
Decontamination and remediation
Cleanup and remediation of contaminated sites, military bases, airports, refineries, wood-processing plants, as well as accident and damage locations worldwide.
Environmental rehabilitation
Rehabilitation of land and beaches, restoration of the original condition and cleaning of water after remediation.
Waste treatment with gasification system
Waste treatment with the proprietary High Temperature Gasification System for combustion in the reactor and use of the syngas for electricity generation.
Electricity generation from syngas
Electricity generation with gas turbines operated with the syngas produced during gasification.
Trust & reputation

ranQ Trust Score of Green AG

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of November 2026

Green AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Green 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%
Green 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%
Green AG scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of November 2026.

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

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Location

Kasernenstrasse 9a
9100 Herisau
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
08:00 - 12:00
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-102.024.561
Founded
2001 · 25 years
Last commercial register change
March 9, 2018
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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