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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryReal EstateReal Estate BrokerageMuttenzSTEFAN THUMMEL IMMOBILIEN AG
STEFAN THUMMEL IMMOBILIEN AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Stefan Thummel Immobilien AG is the brokerage and marketing of real estate, particularly in the area of buying and selling residential and multi-family houses, single-family homes, row houses and apartments. The company also offers services such as market value determination, consulting and all-round service for buyers and sellers of real estate.

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Offering

Products & services

Industry:Real Estate Brokerage
✓ Offered
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4.2/5

STEFAN THUMMEL IMMOBILIEN AG

4
Property sales
Property sales with market valuation, sales documentation, marketing, viewings, negotiations, authority checks, financing coordination and notarial support through to completion.
Market valuation
Detailed market valuation for properties based on location, condition, renovations, expansion potential and regional market knowledge; free when mandated.
Buyer representation with search profile
Buyer representation with search profile, advance notice of matching properties before market publication and checked sales documentation for realistic property comparisons.
Comprehensive real estate support service
Comprehensive support for property purchase and sale with financing and insurance advice, renovation and conversion advice, move and clearance organisation, final cleaning and capital gains tax calculation.
Trust & reputation

ranQ Trust Score of STEFAN THUMMEL IMMOBILIEN AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

STEFAN THUMMEL IMMOBILIEN AG scores 82.2 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.80.424%
  • 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.72.110%
  • 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.100.08%
STEFAN THUMMEL IMMOBILIEN AG scores 72.8 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.70.212%
  • 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%
STEFAN THUMMEL IMMOBILIEN 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%
STEFAN THUMMEL IMMOBILIEN AG scores 12.3 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 35.12.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

STEFAN THUMMEL IMMOBILIEN AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 16 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
4.8
of 5

Aggregated from 16 reviews across all connected sources

Sources
GGoogle4.816
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Fichtenhagstrasse 4
4132 Muttenz
Opening hours
Mon
09:00 - 12:00, 14:00 - 18:00
Tue
09:00 - 12:00, 14:00 - 18:00
Wed
09:00 - 12:00, 14:00 - 18:00
Thu
09:00 - 12:00, 14:00 - 18:00
Fri
09:00 - 12:00, 14:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-409.336.170
Founded
2020 · 6 years
Last commercial register change
May 18, 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.
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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