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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryReal EstateProperty ManagementBirsfeldenDr. Carlos Keller Immobilien AG
Dr. Carlos Keller Immobilien AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Dr. Carlos Keller Immobilien AG is professional real estate management and administration, including the management of condominium ownerships, rental and sale of properties, as well as the administration of residential buildings and settlements. The company offers holistic solutions and individual support for private individuals and investors to achieve optimal solutions for the preservation and enhancement of property values.

AI-generated
Offering

Products & services

Industry:Property ManagementReal Estate Brokerage
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4.2/5

Dr. Carlos Keller Immobilien AG

✓ Offered6
Real estate management and asset management
Management and asset management of residential buildings, settlements and commercial properties as well as income-generating properties and property portfolios; including regular and extraordinary maintenance.
Condominium management
Management and administration of condominium owners’ associations, professional support from A to Z, as well as establishment of condominium ownership.
Property letting
Initial and renewed lettings of properties as well as brokerage of current rental units via the Homegate platform.
Property sales and brokerage
Buying and selling properties, sales support before, during and after the sales process, as well as brokerage and sales and letting concepts.
Property valuations
Valuation of properties as a basis for sale, letting and further decisions.
Renovation and conversion concepts
Planning and implementation of complex conversions and renovations within the scope of property management.
Trust & reputation

ranQ Trust Score of Dr. Carlos Keller Immobilien AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Dr. Carlos Keller Immobilien AG scores 74.1 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.77.024%
  • 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.70.510%
  • 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%
Dr. Carlos Keller Immobilien 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%
Dr. Carlos Keller 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.
x
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%
Dr. Carlos Keller Immobilien AG scores 13.4 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 35.13.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Dr. Carlos Keller Immobilien AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 15 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
4.7
of 5

Aggregated from 15 reviews across all connected sources

Sources
GGoogle4.715
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Schillerstrasse 2
4127 Birsfelden
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, 13:30 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.988.880
Founded
1981 · 45 years
Last commercial register change
February 15, 2019
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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