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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryIT & CommunicationPublishingMagdenZ-PRODUCTIONS Gregor Spörri
Z-PRODUCTIONS Gregor Spörri Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Z-Productions encompasses several areas: Publishing and Bookselling: Z-Productions publishes books, particularly novels and thrillers, and offers them through an online shop. Club and Event Design: The company designs thematic interior architecture and technical equipment for clubs and discos. Research and Authorship: Founder Gregor Spörri conducts research and writes books, particularly science fiction novels, and publishes them through his own publishing house. Sound and Light Design: Z-Productions also offers services in the field of sound and light design. Overall, the core activity of the company can be described as a combination of creative industries, publishing, and event design.

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Offering

Products & services

Industry:Publishing
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4.1/5

Z-PRODUCTIONS Gregor Spörri

5
Publishing and Books
Publishing and books around “Lost God: Das Jüngste Gericht”, with ordering options for booksellers and end customers as well as signed copies.
Event Concepts and Event Equipment
Event concepts for parties and events, sourcing party DJs and show acts, plus rental or brokerage of sound, lighting and decor equipment.
Sound Design for Audio Systems
Sound concepts and loudspeaker design using columns, walls, furniture, room elements, wall art or decor as enclosures for loudspeaker systems.
Club Design and Modernization
Club design for discotheques with laser, DJ, techno and lighting concepts, plus support for new installations and modernizations.
Mystery Research
Research on mysteries, myths and reports about giants, with articles on Giza, the Great Pyramid, the Osiris tomb and the Bir Hooker relic.
Trust & reputation

ranQ Trust Score of Z-PRODUCTIONS Gregor Spörri: 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.

Z-PRODUCTIONS Gregor Spörri 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%
Z-PRODUCTIONS Gregor Spörri 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%
Z-PRODUCTIONS Gregor Spörri scores 83.3 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).83.322%
Z-PRODUCTIONS Gregor Spörri scores 60.0 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 35.60.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Z-PRODUCTIONS Gregor Spörri 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.

Knowledge

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Location

Weiere 5
4312 Magden

At a glance

Legal form
Sole proprietorship
UID
CHE-102.154.229
Founded
1994 · 32 years
Last commercial register change
September 12, 2017
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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