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DirectoryConstruction & ArchitectureExcavationZurichTerratech AG
Terratech AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Terratech AG plans and carries out excavation projects and construction work in civil and specialist foundation engineering. Its services include engineering, demolition, earthworks, excavation support and specialist foundations.

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Service area

Offering

Products & services

Industry:ExcavationSpecialist foundation engineering
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4.0/5

Terratech AG

✓ Offered7
Complete construction pits
Complete construction pits from one source, including demolition, earthworks, excavation pit shoring and special foundations.
Excavation pit shoring
Rühl and Nagel walls in various combinations, planned for each project and executed with our own staff and equipment.
Special foundations
Low-load piles for deep foundations for high loads or weak bearing ground conditions, including pile foundation works in existing buildings.
Building support and underpinning
Securing existing buildings during undermining by building supports or underpinning, if required with hydraulic presses to reduce settlement.
Earthworks
Execution of earthworks, mainly in technically demanding complete construction pits, with a versatile fleet of machines and robust earthmoving equipment.
Demolition works
Demolition of existing buildings prior to the complete construction pit or in combination with earthworks and special deep foundation works.
Engineering works
Optimize excavation pits, prepare the most cost-effective offers and develop technical solutions based on many years of engineering and planning experience.
Trust & reputation

ranQ Trust Score of Terratech AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 100% · As of November 2026

Terratech AG scores 55.8 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.45.024%
  • 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.55.910%
  • 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.88.08%
Terratech AG scores 89.3 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.70.07%
Terratech AG scores 88.3 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).88.322%
Terratech AG scores 26.5 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 35.42.94%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Terratech AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 3.4 out of 5 stars from 8 customer reviews. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
3.4
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle3.48
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

April 1, 2019Media
Effizientes Arbeiten bei geringer körperlicher Anstrengung
baublatt.ch

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Location

Oerlikonerstrasse 57
8057 Zurich
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
07:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.501.181
Founded
1989 · 37 years
Last commercial register change
June 1, 2026
Employees
11 to 20

Active in 1 of 26 cantons

  • ZHZurich
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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