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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesManagement ConsultingAppenzellPerpetuum AG
Perpetuum AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of perpetuum AG is the conception and implementation of environmental solutions for companies, particularly in the development of sustainability concepts and the creation of project outlines to achieve these goals.

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Offering

Products & services

Industry:Management ConsultingTechnical Consulting & Engineering
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4.1/5

Perpetuum AG

✓ Offered5
Sustainability strategy and reporting
Sustainability concepts, implementation of Doughnut Economics in sustainability reporting, and development of sustainability concepts with a focus on nature and culture.
Net-zero roadmap
Tailored net-zero roadmaps for companies, including milestones, progress towards targets, communication and support with CO2 agreements with the Federal Government.
Energy consulting and energy efficiency
Analysis of the building envelope, energy losses and technical components; preliminary concepts, energy-efficiency projects, implementation and performance monitoring.
Aquatic ecology and landscape ecology
Services in the field of aquatic ecology, complemented by landscape-ecology consulting, renaturation, ecomorphology, habitat connectivity and environmental assessments.
Environmental solutions for companies
Development and implementation of environmental solutions for companies, from initial ideas through precise concepts to feasible, on-time execution.
Trust & reputation

ranQ Trust Score of Perpetuum AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Perpetuum 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.
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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%
Perpetuum AG scores 85.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
Perpetuum AG scores 83.3 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).83.322%
Perpetuum AG scores 4.9 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 35.4.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Perpetuum AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Blumenrainstrasse 34
9050 Appenzell

At a glance

Legal form
Corporation
UID
CHE-110.116.283
Founded
2003 · 23 years
Last commercial register change
May 6, 2022
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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