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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesOther Service IndustriesZurichKarin Keller - abcwerk
Karin Keller - abcwerk Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Karin Keller - abcwerk provides copywriting, communication consulting and writing support, producing audience‑oriented texts for websites, blogs, magazines and brochures and developing communication concepts. Services include editing, writing coaching and website checks, with clients such as non‑profit organisations, educational institutions, SMEs, associations, housing cooperatives and publishers.

AI-generated
Offering

Products & services

Industry:Other Service Industries
✓ Offered3
Texts
Texts for websites and publications, revision of drafts, formulation of messages and content for clear, understandable communication.
Communication
Communication strategy, formulation of content and support to make topics visible and convey messages in an understandable way.
Writing assistance
Writing support, copyediting, website check, review/analysis and text consultation for people who want to write and improve their texts themselves.
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4.0/5

Karin Keller - abcwerk

Trust & reputation

ranQ Trust Score of Karin Keller - abcwerk: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Karin Keller - abcwerk scores 63.1 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.78.124%
  • 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.49.510%
  • 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.35.08%
Karin Keller - abcwerk scores 74.0 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.89.612%
  • 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%
Karin Keller - abcwerk 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%
Karin Keller - abcwerk scores 74.3 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 35.74.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Karin Keller - abcwerk reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 6 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle56
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Stüssistrasse 35
8006 Zurich
Opening hours
Mon
09:00 - 18:00
Tue
09:00 - 18:00
Wed
09:00 - 18:00
Thu
09:00 - 18:00
Fri
09:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-400.998.258
Founded
2015 · 11 years
Last commercial register change
June 4, 2021
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.
67.0
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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