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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringSempachdefors GmbH
defors GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of defors GmbH is in building technology, particularly in the areas of: Water Engineering: planning and design of drinking water and wastewater systems, including ensuring drinking water hygiene and integrating energy-efficient solutions. Fire protection and building technology: developing sustainable solutions for building technology, including planning and design of fire protection systems and HVAC systems. Heat treatment plants (RWB): planning and design of heat treatment plants. Consulting and training: the company offers consulting services to customers and conducts training programs for professionals in building technology. The company is also active in standardization and guideline work and has employees who work as technical lecturers and members of working groups of SIA and DIE PLANER, SWKI.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
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4.0/5

defors GmbH

✓ Offered2
Accredited inspections for fire protection systems
Accredited inspection tests for smoke and heat exhaust systems, smoke control pressure systems, purge ventilation systems, fire brigade lifts and fire alarm systems, including acceptance and periodic checks.
Continuing education courses in building services and energy
Continuing education courses for building services and energy, especially the Planning Aids for Building Services and Energy course and the CAS in Integrated Building Services and Energy.
Trust & reputation

ranQ Trust Score of defors GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

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Data basis 54% · As of October 2026

defors 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.
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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%
defors GmbH scores 71.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.64.612%
  • 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.70.07%
defors GmbH scores 85.0 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).85.022%
defors GmbH scores 4.9 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.4.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

defors GmbH reaches a ranQ Trust Score of 4.0 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

Seesatz 45
6204 Sempach

At a glance

Legal form
Limited Liability Company
UID
CHE-342.869.672
Founded
2021 · 5 years
Last commercial register change
February 10, 2023
Employees
11 to 20
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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