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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsSchwarzenburgPhilippe Steiner AG Architektur & Bauleitung
Philippe Steiner AG Architektur & Bauleitung Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Philippe Steiner AG is the provision of services in the field of architecture and construction management, including planning, construction management, cost control and construction accounting for construction projects.

AI-generated
Offering

Products & services

Industry:Architecture FirmsReal Estate Brokerage
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Philippe Steiner AG Architektur & Bauleitung

✓ Offered5
Architecture
Planning of building projects, feasibility studies, cost estimates, 3D drafting work, building submissions and detailed design for new builds and conversions.
Construction management
Management of construction projects including scheduling, contractor negotiations, contracts, cost control, final accounts, and support in all phases.
Building planning
Building planning for conversions and new builds, from cost estimates and tender submission through to detailed design and final accounts.
Real estate rentals
Letting of rental properties, including commercial halls and other properties with direct links to advertisements.
Real estate sales
Sale of projects and properties; currently no project is being offered for sale.
Trust & reputation

ranQ Trust Score of Philippe Steiner AG Architektur & Bauleitung: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

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Data basis 96% · As of October 2026

Philippe Steiner AG Architektur & Bauleitung scores 49.8 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.68.224%
  • 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.17.610%
  • 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%
Philippe Steiner AG Architektur & Bauleitung scores 82.3 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.92.512%
  • 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%
Philippe Steiner AG Architektur & Bauleitung 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%
Philippe Steiner AG Architektur & Bauleitung scores 2.9 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 35.2.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Philippe Steiner AG Architektur & Bauleitung reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Langenwilweg 28
3150 Schwarzenburg
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
Corporation
UID
CHE-432.470.168
Founded
2014 · 12 years
Last commercial register change
November 18, 2022
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.100.06%
  • 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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