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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsZurichSektor4 GmbH
Sektor4 GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of SEKTOR4 is lighting design and planning, particularly for architectural projects such as museums, restaurants, hotels and exhibition spaces. The company develops lighting concepts and designs, and offers manufacturer-independent consulting and planning services.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered7
Lighting planning
Lighting planning in architecture, from needs clarification through preliminary design and construction design to tendering, site supervision, lighting commissioning, and documentation.
Lighting concept
Lighting concepts with sketches, mood images, written descriptions, and a rough cost estimate as a basis for the next planning steps.
Lighting design
Lighting design as a partial service of the lighting concept, focusing on lighting atmosphere, emphasis of elements, materials and surfaces, as well as the visual impact.
Luminaire development
Luminaire development for project and special luminaires—decorative or technical luminaires—from design and engineering to optimisation for the lighting task.
Project and special luminaires
Project-related luminaires for architecture and spatial impact, matched to location, client, and the lighting concept; decorative or technical versions.
Client advisory
Client advisory including goal definition, process support, second opinion, analyses, and optimisation for lighting and design questions.
Expert assessments
Expert assessments, analyses, reports, and expert opinions on planned or existing lighting concepts and installations, including an independent second opinion.
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4.0/5

Sektor4 GmbH

Trust & reputation

ranQ Trust Score of Sektor4 GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Sektor4 GmbH scores 63.9 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.70.824%
  • 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.27.910%
  • 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.88.08%
Sektor4 GmbH scores 83.0 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.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%
Sektor4 GmbH 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%
Sektor4 GmbH scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Sektor4 GmbH 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 2 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Am Wasser 87
8049 Zurich
Opening hours
Mon
09:00 - 17:00
Tue
09:00 - 17:00
Wed
09:00 - 17:00
Thu
09:00 - 17:00
Fri
09:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-109.042.063
Founded
2001 · 25 years
Last commercial register change
September 7, 2023
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.
88.0
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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