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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryIT & CommunicationPR agencyZurichStefan Bannwart AG
Stefan Bannwart AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Stefan Bannwart AG advises companies and executives on corporate communication. Its services include communication strategy, crisis management, executive programmes and individual sparring for leaders.

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Service area

Offering

Products & services

Industry:PR agency
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4.1/5

Stefan Bannwart AG

✓ Offered3
Communication consulting
Advisory support in the development and implementation of communication strategies, crisis communication and in the traditional areas of corporate communication.
Executive Program "Authentic Leadership Communication"
Senior-executive programme for small groups or individuals for authentic communication, for linking personality and role, and for using strategic communication tools.
Sparring partner for executive communication
Coaching of executives in special situations or over longer periods, with input and candid feedback from an independent third-party perspective.
Trust & reputation

ranQ Trust Score of Stefan Bannwart AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Stefan Bannwart 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%
Stefan Bannwart 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%
Stefan Bannwart AG scores 85.0 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).85.022%
Stefan Bannwart AG scores 6.9 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 35.6.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Stefan Bannwart 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 November 2026.

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

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Location

Hornbachstrasse 66
8008 Zurich

At a glance

Legal form
Corporation
UID
CHE-114.040.420
Founded
2008 · 18 years
Last commercial register change
September 16, 2011
Employees
1 to 10

Active in 1 of 26 cantons

  • ZHZurich
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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