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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSustainability SectorZurichCleantech21 Foundation
Cleantech21 Foundation Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Cleantech21 Foundation (C21) is to promote environmental protection and sustainability through the development and implementation of Cleantech solutions, policy innovations, and technological advancements. The company focuses on the themes of Sustainable Development, Cleantech, Climate and Biodiversity Crisis, Sustainable Market Economy, Policy Innovation, and Technological Innovation. C21 engages in research, thought leadership, and project development aimed at driving the market for sustainable solutions. The company collaborates with partners to mobilize resources for project development and provides consulting and support services to companies and organizations committed to sustainability and environmental protection. The core activities of C21 include: * Research and development of Cleantech solutions * Policy innovation and lobbying for sustainable policies * Technological innovation and development of new technologies * Project development and implementation in the field of sustainability and environmental protection * Consulting and support services for companies and organizations in the field of sustainability and environmental protection.

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4.1/5

Cleantech21 Foundation

Offering

Products & services

Industry:Sustainability Sector
✓ Offered6
Initiatives
Long-term project initiatives for the climate and biodiversity crisis, focusing on regulatory and technological innovation as well as concrete, effective action.
Short-term advisory assignments
Speaking and advisory assignments with half-day or full-day workshops, presentations, review of the sustainability strategy, and inputs on trends and performance status.
Climate Policy Exchange (CPX)
Digitally networked global companies with local policy instruments and initiatives for climate protection and regulatory innovation.
International Climate Incentive Alliance (ICIA)
Advocates for intelligent pricing of greenhouse gas emissions and promotes corresponding climate policy approaches.
Hack4Climate (H4C)
Mobilizes tech talent to tackle major challenges with technological contributions and collaborative formats.
Thought leadership
Publications, inputs, and comments on climate, biodiversity, regulation, and technology topics, complemented by research and analyses.
Trust & reputation

ranQ Trust Score of Cleantech21 Foundation: 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.

Cleantech21 Foundation 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%
Cleantech21 Foundation scores 88.6 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%
Cleantech21 Foundation 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%
Cleantech21 Foundation scores 37.1 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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Cleantech21 Foundation 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

Reitergasse 11
8004 Zurich

At a glance

Legal form
Foundation
UID
CHE-113.966.792
Founded
2007 · 19 years
Last commercial register change
July 25, 2022
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.
97.0
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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