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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesEngineerBaselGraf Ingenieure AG
Graf Ingenieure AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Graf Ingenieure AG is an engineering consultancy specialising in energy and building services. It plans heating, ventilation, air-conditioning and cooling systems, coordinates building disciplines, and provides advice and calculations in thermal building physics.

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Presence

Service area

Offering

Products & services

Industry:Engineer
✓ Offered3
Heating / Ventilation / Air Conditioning / Refrigeration Design & Planning
Design and planning of building services systems across all SIA planning phases, from preliminary studies and competition through tendering, detailed design and acceptance.
Spatial and specialist coordination
Coordination of functions and planning documents of the specialist planners involved, so that systems work in a well-coordinated manner and are integrated cleanly into the planning.
Thermal building physics
Advice on thermal insulation, summer heat protection and thermal comfort, as well as preparation of the required calculations and supporting documents.
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4.0/5

Graf Ingenieure AG

Trust & reputation

ranQ Trust Score of Graf Ingenieure AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 54% · As of November 2026

Graf Ingenieure AG 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%
Graf Ingenieure AG scores 67.5 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.58.012%
  • 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%
Graf Ingenieure AG 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%
Graf Ingenieure AG scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Graf Ingenieure AG 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 November 2026.

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

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Location

Adlerstrasse 23
4052 Basel

At a glance

Legal form
Corporation
UID
CHE-351.420.147
Founded
2022 · 4 years
Last commercial register change
July 4, 2022
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • BSBasel
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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