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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryIT & CommunicationAdvertising AgenciesZurichdesignSIA Annatina Sidler
designSIA Annatina Sidler Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company 'designsia' is the provision of services in the field of communication and web design. Specifically, this includes the development of communication concepts, the design of corporate identity (CI/CD), the creation of print media such as business cards, letterheads, flyers and brochures, as well as the conception and implementation of websites using the Joomla content management system.

AI-generated
Offering

Products & services

Industry:Advertising Agencies
✓ Offered3
Web design
Web concept, customised web design, website programming, CMS Joomla, support and maintenance, search engine optimisation, online marketing, newsletter.
Integrated communication
Communication concept, mission statement and wording guide, annual measures planning, copywriting and text editing, internal communication, media and public relations, online communication.
Corporate Publishing
Logo, business cards and letterhead, CI/CD manual and image worlds, direct mailings, flyers and brochures, annual reports, publications and text editing.
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4.2/5

designSIA Annatina Sidler

Trust & reputation

ranQ Trust Score of designSIA Annatina Sidler: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

designSIA Annatina Sidler scores 67.5 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.79.424%
  • 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.52.910%
  • 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.50.08%
designSIA Annatina Sidler scores 78.5 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%
designSIA Annatina Sidler 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%
designSIA Annatina Sidler scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

designSIA Annatina Sidler reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 7 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 7 reviews across all connected sources

Sources
GGoogle57
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Buchholzstrasse 149
8053 Zurich
Opening hours
Mon
09:00 - 17:30
Tue
09:00 - 17:30
Wed
09:00 - 17:30
Thu
09:00 - 17:30
Fri
09:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-114.989.235
Founded
2009 · 17 years
Last commercial register change
August 3, 2026
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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