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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryCrafts & TradesElectricianMessenLuminum GmbH
Luminum GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Luminum GmbH is an independent, product-neutral lighting design office focused on outdoor lighting systems. It plans lighting for public spaces, sports facilities, industrial sites and rail transport, supporting projects from concept through implementation; it also provides consulting, expert assessments and rental of measuring equipment.

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Service area

Offering

Products & services

Industry:Electrician
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Luminum GmbH

✓ Offered9
Outdoor lighting design
Lighting design for outdoor lighting systems, from initialisation and concept through project engineering to procurement, execution support and commissioning.
Public lighting
Planning, project engineering, procurement and construction support for lighting systems in public spaces, including consideration of design, safety, perception, biodiversity and light emissions.
Sports facility lighting
Planning and implementation of new or refurbished sports field lighting for outdoor areas, indoor facilities and stadiums.
Lighting for industry and rail traffic
Lighting planning for industrial sites, halls, stabling halls, underpasses as well as rail-traffic facilities with stations, platforms, ramps and shunting areas.
Light design and object lighting
Design of light for architecture and materials, enhancement of the cityscape and targeted staging of prominent objects.
Product design and development
Development or adaptation of products for individual projects when standard products do not achieve the desired result.
Expert opinions and assessments
Independent testing and assessment of implemented lighting systems using measuring equipment, including a second opinion and clarification of glare or light emissions.
Consulting
On-site consultations, presentations at events, staff training and general information on lighting topics.
Rental of measuring instruments
Rental of measuring instruments such as a luminance meter, spectrometer, luminance measurement camera, lux meter and laser distance measuring device with CAD recording.
Trust & reputation

ranQ Trust Score of Luminum GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of November 2026

Luminum GmbH 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%
Luminum GmbH scores 77.2 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.86.512%
  • 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%
Luminum GmbH scores 88.3 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).88.322%
Luminum GmbH scores 22.9 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 35.45.74%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Luminum GmbH 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 58%, so the score is backed by part of the criteria. As of November 2026.

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

Press

Media

May 23, 2026Media
Altstadtbeleuchtung Burgdorf Luminum GmbH
world-architects.com
May 10, 2026Media
Marktlaube Burgdorf Luminum GmbH
swiss-architects.com

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Location

Bernweg 101
3254 Messen
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-256.907.137
Founded
2016 · 10 years
Last commercial register change
November 13, 2025
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • SOMessen
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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