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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryReal EstateReal Estate BrokerageRapperswil SgZTH AG St. Gallische Immobilien-Gesellschaft
ZTH AG St. Gallische Immobilien-Gesellschaft Logo
Verified· 3 sourcesTrust Score
Summary

About the company

ZTH AG St. Gallische Immobilien-Gesellschaft is a real estate trustee that provides property management, construction trust services, property valuations, sales brokerage and accounting/trust services.

AI-generated
Offering

Products & services

Industry:Real Estate Brokerage
✓ Offered6
Real estate sales
Market-based sale of multi-family houses, single-family houses, apartments and commercial properties; documentation, pricing, market analysis, marketing activities, listing advertising, negotiations and administration up to contract signing.
Property management
Management of properties including letting, contract signings, terminations, key checks, apartment move-out inspections, assistance with the building caretaker, insurance administration, invoice monitoring and collection of rent and service charges.
Real estate valuation
Determination of the market value of houses and apartments; property inspection, sourcing and review of documents, and a detailed valuation report.
Trust services
Construction trust services and client advisory services for developers, including zoning and land-use regulations, market analyses, contacts with public authorities, project execution, tendering/quotations management, construction account handling and final project accounting.
First letting
Letting of newly built or newly renovated and re-let properties; letting documents, market analysis, rent price setting, letting and marketing concept, viewings and negotiations.
Renovations
Coordination of renovations and major maintenance work such as replacement of windows, façade renovation as well as replacement of kitchens and bathrooms; tenant information, tendering, coordination and renovation accounting.
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4.1/5

ZTH AG St. Gallische Immobilien-Gesellschaft

Trust & reputation

ranQ Trust Score of ZTH AG St. Gallische Immobilien-Gesellschaft: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

ZTH AG St. Gallische Immobilien-Gesellschaft scores 64.7 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.47.424%
  • 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.81.910%
  • 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.95.08%
ZTH AG St. Gallische Immobilien-Gesellschaft 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%
ZTH AG St. Gallische Immobilien-Gesellschaft 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%
ZTH AG St. Gallische Immobilien-Gesellschaft scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

ZTH AG St. Gallische Immobilien-Gesellschaft reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.8 out of 5 stars from 24 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
3.8
of 5

Aggregated from 24 reviews across all connected sources

Sources
GGoogle3.824
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Neue Jonastrasse 115
8640 Rapperswil Sg
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-115.582.103
Founded
2010 · 16 years
Last commercial register change
July 15, 2011
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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