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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryReal EstateReal Estate Project DevelopmentFrickTIERSTEIN AG
TIERSTEIN AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Tierstein AG is the development of real estate, particularly the planning and realization of residential, industrial and commercial property projects in Northwestern Switzerland.

AI-generated
Offering

Products & services

Industry:Real Estate Project Development
✓ Offered3
Real estate development
Development of residential and commercial real estate, land parcels and mid-sized to larger projects in north-west Switzerland; also construction, refurbishment and revitalisation.
Property management
Management of the company’s own real estate portfolio, where meaningful and feasible; property management of residential and commercial real estate in connection with existing holdings.
Disposal of development projects
Sale of developed real estate and land-parcel projects after development; alternatively, acquisition for the company’s own portfolio.
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4.1/5

TIERSTEIN AG

Trust & reputation

ranQ Trust Score of TIERSTEIN AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

TIERSTEIN AG scores 70.0 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.53.524%
  • 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.89.710%
  • 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%
TIERSTEIN AG scores 80.4 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.79.212%
  • 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.70.07%
TIERSTEIN AG scores 86.7 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).86.722%
TIERSTEIN AG scores 27.8 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 35.8.94%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.46.74%
Qualifications+0.00

TIERSTEIN AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 33 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4
of 5

Aggregated from 33 reviews across all connected sources

Sources
GGoogle433
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

July 30, 2026Media
Rheinfelden: Tierstein AG räumt Fehler beim Baustart am Gottesackerweg ein
aargauerzeitung.ch
July 27, 2026Media
Gipf-Oberfrick: Tierstein AG plant fünf Mehrfamilienhäuser auf der Breitmatt
aargauerzeitung.ch
July 1, 2026Media
Ehrendingen begrenzt Coop-Ladenfläche – Tierstein AG wehrt sich
badenertagblatt.ch
March 12, 2026Media
Neues Leben für das «Studer-Areal»
nfz.ch
March 11, 2026Media
Neue Zukunft fürs Studer-Areal in Frick: Diese Firmen ziehen auf das Industriegelände
aargauerzeitung.ch
June 24, 2025Media
«Wir wollen die Altstadt nicht konkurrenzieren»
reussbote.ch

Knowledge

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Location

Hauptstrasse 41
5070 Frick
Opening hours
Mon
14:00 - 16:00
Tue
09:00 - 11:00
Wed
09:00 - 11:00
Thu
09:00 - 11:00
Fri
09:00 - 11:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-319.859.701
Founded
2018 · 8 years
Last commercial register change
September 25, 2025
Employees
11 to 20
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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