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DirectoryIT & CommunicationRadio & TV BroadcastersWinterthurRadio Stadtfilter AG
Radio Stadtfilter AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Radio Stadtfilter AG operates an alternative community radio and manages the station's broadcast operations on behalf of the Radio Stadtfilter association. Its programming focuses on local and cultural content, providing a platform for volunteer producers and voices that are underrepresented in commercial and public media.

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Products & services

Industry:Radio & TV Broadcasters
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4.3/5

Radio Stadtfilter AG

✓ Offered
7
Local radio operation
Local community radio for Winterthur and the surrounding area with a daily 24-hour schedule, editorial programmes, music, culture, politics and society topics, and live broadcasts.
Radiotheque and broadcast archive
Radiotheque for listening back as well as a broadcast archive with current contributions, repeated programmes and archived programme content.
Programme with editorial and free broadcasts
Weekly schedule with programmes managed by the editorial team, music programmes, special broadcasts, formats in foreign languages and repeats.
Internship and basic radio training
Internship positions with basic radio training during day-to-day operations; each year, several interns complete the training programme.
Event and community engagement
A place for committed listeners and local culture enthusiasts, with presence at events, theme weeks, concerts and live broadcasts.
Membership in the association
Membership to financially support broadcasting operations, co-design of the association’s general meeting, the option to moderate one’s own broadcast, and access to discounts.
Partnerships and sponsorship
Partnerships and sponsorship to finance broadcasting operations and to collaborate with companies, foundations and public authorities.
Trust & reputation

ranQ Trust Score of Radio Stadtfilter AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 100% · As of October 2026

Radio Stadtfilter AG scores 69.8 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.80.424%
  • 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.72.110%
  • 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%
Radio Stadtfilter AG scores 92.3 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.82.07%
Radio Stadtfilter AG scores 86.7 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).86.722%
Radio Stadtfilter AG scores 55.0 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: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Radio Stadtfilter AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 16 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.8
of 5

Aggregated from 16 reviews across all connected sources

Sources
GGoogle4.816
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

March 2, 2019Media
Liebe auf den zweiten Ton
tagesanzeiger.ch

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Location

Turnerstrasse 1
8400 Winterthur
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
12:00 - 16:00
Sun
12:00 - 16:00

At a glance

Legal form
Corporation
UID
CHE-114.534.981
Founded
2008 · 18 years
Last commercial register change
July 16, 2026
Employees
21 to 50
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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