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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsOltengrünwerk1 landschaftsarchitekten ag
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Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of grünwerk1 landschaftsarchitekten ag is landscape architecture, particularly in the design of open spaces, playgrounds and sports facilities, garden design and landscape design. The company offers services such as planning, design and development of public and private open spaces, parks, gardens and sports facilities.

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Products & services

Industry:Architecture Firms
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grünwerk1 landschaftsarchitekten ag

Landscape architecture
Landscape architecture for projects in the urban space, for developments, schools and public facilities; from planning through to design support.
Open-space design
Open-space design for residential, school and public outdoor areas; development of concepts, design approaches and spatial solutions for outdoor facilities.
Design plans and framework plans
Design plans and framework plans as well as operational and design concepts for sites, street spaces and other planning tasks.
Operational and design concepts
Operational and design concepts for sites and outdoor spaces; combining spatial planning with functional requirements and conceptual coordination.
Play and sports facility planning
Planning of play and sports facilities; needs assessment, concepts, refurbishments, new builds as well as tendering, detailed design and site management.
Renovation of play and sports facilities
Renovation of play and sports facilities, including concepts, planning, detailed design, tendering and site management for existing facilities.
Garden architecture
Garden architecture for new and refurbishment projects of private gardens; development of garden concepts and design solutions.
Garden design
Garden design for new and refurbishment of gardens; implementation of individual outdoor spaces in the private setting.
Competition preparation
Preparation of competitions for school buildings, residential developments, public squares and other construction projects in a landscape-architectural context.
Trust & reputation

ranQ Trust Score of grünwerk1 landschaftsarchitekten ag: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

grünwerk1 landschaftsarchitekten ag scores 49.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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%
grünwerk1 landschaftsarchitekten ag 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%
grünwerk1 landschaftsarchitekten ag 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%
grünwerk1 landschaftsarchitekten ag scores 6.3 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 35.6.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

grünwerk1 landschaftsarchitekten ag 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

Leberngasse 15
4600 Olten
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:30
Tue
08:00 - 12:00, 13:30 - 17:30
Wed
08:00 - 12:00, 13:30 - 17:30
Thu
08:00 - 12:00, 13:30 - 17:30
Fri
08:00 - 12:00, 13:30 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-287.683.436
Founded
2014 · 12 years
Last commercial register change
June 30, 2014
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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