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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureOwner's RepresentativeRichterswilTanner Verwaltungen GmbH
Tanner Verwaltungen GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Tanner Verwaltungen GmbH provides owner construction consultancy, construction trust services (Bautreuhand) and property management including leasing. Services include control of construction accounts, monitoring of construction schedules through handover, tenant placement and retention, technical maintenance, accounting and debt collection.

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Offering

Products & services

Industry:Owner's RepresentativeProperty Management
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3.9/5

Tanner Verwaltungen GmbH

✓ Offered3
Client advisory services for building projects
Advisory support for building projects, representation on the construction site and at specialist planning meetings, assistance with selecting materials and tradespeople, and control of execution quality.
Construction trusteeship
Review and control of construction invoices and accounts, adherence to costs and construction schedules up to project acceptance.
Property management
Initial, new and re-letting, tenant care, caretaking services, technical support, accounting, debt collection, and advice on preserving property value.
Trust & reputation

ranQ Trust Score of Tanner Verwaltungen GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

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Data basis 96% · As of October 2026

Tanner Verwaltungen GmbH scores 56.5 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.70.08%
Tanner Verwaltungen GmbH scores 83.0 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
Tanner Verwaltungen GmbH 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%
Tanner Verwaltungen GmbH scores 9.1 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 35.9.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Tanner Verwaltungen GmbH reaches a ranQ Trust Score of 3.9 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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Comparisons

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Location

Zugerstrasse 65
8805 Richterswil

At a glance

Legal form
Limited Liability Company
UID
CHE-116.324.880
Founded
2010 · 16 years
Last commercial register change
June 8, 2026
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.
88.0
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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