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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsBaselDillier Architektur GmbH
Dillier Architektur GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Dillier Architektur GmbH is the provision of architectural services, including design, concept development, planning, project management, execution and coordination of construction projects, particularly in the area of residential and commercial buildings, as well as the implementation of renovations and conversions of existing buildings.

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Products & services

Industry:Architecture Firms
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Dillier Architektur GmbH

Design and concept development
Design and concept development for new builds, conversions and competitions; spatial concepts, material and colour concepts, studies and design solutions for a wide range of building requirements.
Planning
Planning of building projects, including building plans, building permits, construction and detail planning for residential buildings, conversions, studies and competitions.
Project management
Project management for architectural projects, from coordinating processes to supporting design, planning and implementation.
Execution and coordination
Execution and coordination of building projects, including coordinating stakeholders and supporting implementation through to completion.
Site supervision and aesthetic site supervision
Site supervision and aesthetic site supervision for building projects, with support during execution and control of the design implementation.
Feasibility studies
Feasibility studies for existing premises, including spatial concepts, material and colour concepts, lighting and furnishing.
Historic preservation survey and analysis
Historic preservation survey and analysis of settlements and inventories, including on-site recording, documentation, evaluation and a conclusion.
Trust & reputation

ranQ Trust Score of Dillier Architektur GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

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Data basis 54% · As of October 2026

Dillier Architektur 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%
Dillier Architektur GmbH scores 72.3 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.75.012%
  • 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%
Dillier Architektur GmbH scores 83.3 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).83.322%
Dillier Architektur GmbH scores 5.4 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 35.5.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Dillier Architektur 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.

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Location

Breisacherstrasse 66
4057 Basel

At a glance

Legal form
Limited Liability Company
UID
CHE-146.304.534
Founded
2019 · 7 years
Last commercial register change
January 30, 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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