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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsBaselBuchner Bründler Planer AG
Buchner Bründler Planer AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Buchner Bründler Planer AG is an architectural practice delivering planning and project execution for residential, public and cultural buildings, including renovations, extensions and competition entries. The firm documents its work through a project portfolio, publications and exhibitions, with examples ranging from housing developments to museums and hotel conversions.

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4.0/5

Buchner Bründler Planer AG

✓ Offered
6
Architectural services
Conceptual work on the room programme, design development and detailed execution planning for residential buildings, conversions, new builds and alterations; coordination with specialist planners, contractors and authorities.
Competition projects and study mandates
Participation in architecture competitions and study mandates for residential buildings, public buildings, educational buildings and mixed-use areas; sometimes documented with awards and rankings.
Renovation and refurbishment of existing buildings
Conversion, extension and reorganisation of existing buildings such as residential houses, hotels, warehouses and historic structures; often with a focus on further building and careful interventions.
Residential construction
Planning of single-family houses, multi-family houses, residential developments and housing estates; from compact detached homes to cooperative and community-oriented housing complexes.
Buildings for public and cultural use
Planning and conversion of art houses, museums, educational and community buildings as well as other public buildings; including exhibition, gathering and circulation spaces.
Service and workplace buildings
Planning of administrative, office and service buildings, including new administrative builds, headquarters and service-oriented buildings with work areas and public zones.
Trust & reputation

ranQ Trust Score of Buchner Bründler Planer AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 100% · As of October 2026

Buchner Bründler Planer AG scores 57.5 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.70.024%
  • 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.45.610%
  • 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.35.08%
Buchner Bründler Planer AG scores 83.5 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.95.212%
  • 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%
Buchner Bründler Planer AG scores 86.7 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).86.722%
Buchner Bründler Planer AG scores 50.0 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 35.100.04%
  • 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

Buchner Bründler Planer AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.6 out of 5 stars from 5 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.6
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.65
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

September 22, 2016Media
Garden Tower
swiss-architects.com

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Location

Utengasse 19
4058 Basel

At a glance

Legal form
Corporation
UID
CHE-220.390.722
Founded
2013 · 13 years
Last commercial register change
March 26, 2021
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.
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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