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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryReal EstateReal Estate Project DevelopmentSchönholzerswilenKoller Immo Ostschweiz AG
Koller Immo Ostschweiz AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Koller Immo Ostschweiz AG acquires, develops and sells land and properties and provides services for project development, property sales and interior fit-outs. The company advises clients from land selection to project delivery and cooperates with Koller Bauunternehmung AG for construction and site management.

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Products & services

Industry:Real Estate Project Development
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4.1/5

Koller Immo Ostschweiz AG

✓ Offered5
Property development
Development of building land and existing properties, including options with a sale to Koller Immo, development by Koller Immo, or construction carried out by a third party.
Real estate sales
Intermediation and sale of single-family homes, multi-family houses, condominiums, office buildings as well as commercial and industrial properties in Eastern Switzerland.
Planning, construction and advisory
Advisory from start to finish, from land purchase to move-in, including selection of the building plot, construction method, interior fittings, as well as coordination of quotations and tradespeople.
Interior fit-out
Consulting and coordination for interior fit-out, including material selection, plastering, windows, kitchen and bathroom furnishings, as well as areas such as flooring, painting work, carpets and staircases.
Show homes
No classic show homes, but houses tailored individually to customer wishes; viewings of homes that have already been sold are possible.
Trust & reputation

ranQ Trust Score of Koller Immo Ostschweiz AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Koller Immo Ostschweiz AG 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.
x
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%
Koller Immo Ostschweiz AG scores 85.5 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.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.55.07%
Koller Immo Ostschweiz AG scores 83.3 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).83.322%
Koller Immo Ostschweiz AG scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Koller Immo Ostschweiz AG reaches a ranQ Trust Score of 4.1 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 October 2026.

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

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Location

Weiblingen 1
8577 Schönholzerswilen

At a glance

Legal form
Corporation
UID
CHE-184.405.225
Founded
2011 · 15 years
Last commercial register change
September 5, 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.
100.0
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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