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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsHenauTrunz Wirth AG
Trunz Wirth AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Trunz Wirth AG is the provision of services in the field of architecture and construction management. This includes the planning, consulting and implementation of construction projects, including the renovation and conversion of buildings, as well as the realization of new buildings. The company offers its customers individual solutions and supports them in implementing their visions and ideas.

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Offering

Products & services

Industry:Architecture Firms
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4.2/5

Trunz Wirth AG

✓ Offered8
Architecture
Architecture for residential buildings, public facilities, commercial properties and industrial buildings; planning with direct exchange, a transparent planning process and cost-effective implementation.
Construction management
Construction management from the first cost estimate and tendering through construction management to final invoicing; as an alternative to the general contractor for clients and competition architects.
School space planning and school construction
School space planning and development, advice, as well as architecture and construction management for school buildings, gymnasiums, kindergartens and educational facilities.
Renovation, conversion and extension
Architecture and construction management for conversion, renovation and extension of residential, school, commercial and administrative buildings.
Industrial and utility buildings
Architecture, planning and construction management for industrial buildings, logistics centres, service depots and other utility buildings.
Heritage-protected buildings
Renovation of buildings and houses under heritage protection, including architectural planning and construction implementation.
Barrier-free buildings
Architecture for social institutions and care facilities with barrier-free buildings and functional spatial solutions.
Residential buildings
Architecture for single-family houses, multi-family houses and residential developments; new construction, conversion and renovation of residential buildings.
Trust & reputation

ranQ Trust Score of Trunz Wirth AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of October 2026

Trunz Wirth AG scores 69.7 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.78.124%
  • 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.49.510%
  • 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.70.08%
Trunz Wirth AG scores 89.3 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.100.012%
  • 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.70.07%
Trunz Wirth 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%
Trunz Wirth AG scores 32.2 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 35.54.34%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Trunz Wirth AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 6 customer reviews. 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 6 reviews across all connected sources

Sources
GGoogle56
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

August 19, 2017Media
HENAU: Neuer Elan in altem Kraftwerk
tagblatt.ch

Knowledge

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Location

Felseggstrasse
9247 Henau
Opening hours
Mon
07:30 - 18:00
Tue
07:30 - 18:00
Wed
07:30 - 18:00
Thu
07:30 - 18:00
Fri
07:30 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-100.631.336
Founded
1991 · 35 years
Last commercial register change
May 3, 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.
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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