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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitectSchlatt TgHayashi Allemann Kenchiku Atelier, Inhaber Kohei Hayashi
Hayashi Allemann Kenchiku Atelier, Inhaber Kohei Hayashi Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Hayashi Allemann Kenchiku Atelier, Inhaber Kohei Hayashi is an architecture practice with a Japanese influence. Its services include architectural design, building consultancy and renovation, as well as furniture and garden design and model making.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Architect
✓ Offered6
Architectural design
Architectural design for new builds, conversions and extensions; including houses, school buildings, kindergartens, sports halls, tea rooms and temples.
Construction consulting
Construction consulting for construction projects and developments; ongoing advisory on architecture, new build, conversions and building renovation.
Building renovation
Building renovation, including existing structures and special conversion or renovation projects such as the renovation of a tea room in a museum.
Furniture design
Furniture design for residential and project environments, tailored to architecture and Japanese-influenced design.
Garden design
Garden design for private homes and projects, including Japanese-inspired outdoor spaces and garden projects.
Scale model making
Scale model making for architecture and design development projects; supported by existing machines such as Laser Cutter and Styropor Cutter.
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3.8/5

Hayashi Allemann Kenchiku Atelier, Inhaber Kohei Hayashi

Trust & reputation

ranQ Trust Score of Hayashi Allemann Kenchiku Atelier, Inhaber Kohei Hayashi: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

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Data basis 54% · As of November 2026

Hayashi Allemann Kenchiku Atelier, Inhaber Kohei Hayashi 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%
Hayashi Allemann Kenchiku Atelier, Inhaber Kohei Hayashi scores 60.5 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.58.012%
  • 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%
Hayashi Allemann Kenchiku Atelier, Inhaber Kohei Hayashi 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%
Hayashi Allemann Kenchiku Atelier, Inhaber Kohei Hayashi scores 1.4 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 35.1.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Hayashi Allemann Kenchiku Atelier, Inhaber Kohei Hayashi reaches a ranQ Trust Score of 3.8 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 November 2026.

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

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Location

Frauenfelderstrasse 82
8252 Schlatt Tg

At a glance

Legal form
Sole proprietorship
UID
CHE-281.851.296
Founded
2022 · 4 years
Last commercial register change
December 3, 2024
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • TGSchlatt (TG)
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.67.06%
  • 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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