ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Partner program
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil EngineeringBaselIsen Tiefbau AG
Isen Tiefbau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Isen Tiefbau AG is a civil engineering company providing project planning, construction management and a range of earthworks and utility installation services. Its services include pipe laying, utility and sewer construction, cable pulling and fiber‑optic installations and splicing, core drilling, paving works, and supplying and installing shafts and distribution cabinets.

AI-generated
Offering

Products & services

Industry:Civil Engineering
✓ Offered2
Telecom & Network Construction
Complete telecommunications and network infrastructure projects, from the initial project idea to commissioning.
Civil Engineering
Services for underground pipeline construction for infrastructure projects and district heating, from project execution to on-time commissioning.
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
4.1/5

Isen Tiefbau AG

Trust & reputation

ranQ Trust Score of Isen Tiefbau AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Isen Tiefbau AG scores 65.2 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.53.024%
  • 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.95.08%
Isen Tiefbau AG scores 87.1 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.82.07%
Isen Tiefbau 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%
Isen Tiefbau AG scores 13.7 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 35.13.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Isen Tiefbau AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.9 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
3.9
of 5

Aggregated from 15 reviews across all connected sources

Sources
GGoogle3.915
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once Isen Tiefbau AG has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Isen Tiefbau AG in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Isen Tiefbau AG by reviews, experience and specialisations.

Is this your company?

Claim the company profile of Isen Tiefbau AG to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Münchensteinerstr. 270
4053 Basel
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-326.451.570
Founded
2010 · 16 years
Last commercial register change
December 2, 2024
Employees
21 to 50
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.
76.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Similar companies

    BA
    Bertschmann AG
    Basel
    EF
    Ernst Frey AG, Filiale Basel
    Basel
    GU
    Grund- und Tiefbau AG Basel
    Basel
    M+
    Morath + Crottaz AG Bauunternehmung
    Basel
    GH
    Gut Hoch- und Tiefbau GmbH
    Basel
    BB
    Bistra Bau AG
    Basel
    BG
    Bauwelt Group AG
    Basel
    AS
    ALM Schweiz GmbH
    Basel