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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsSchlierenDZ Ingenieure GmbH
DZ Ingenieure GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of DZ Ingenieure GmbH is the planning and realization of civil engineering projects, particularly in the field of infrastructure projects such as road construction, utility line construction, property drainage, trenchless pipe laying, district heating planning and maintenance measures. The company offers comprehensive services from planning to realization and positions itself as a planning and construction management office for civil engineering projects.

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Products & services

Industry:Civil Engineering Firms
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3.6/5

DZ Ingenieure GmbH

✓ Offered11
Site utility network construction
Planning and execution of water, gas, sewer, electrical and telecommunications lines as well as property drainage and district heating and district cooling systems.
Road construction
Planning of road construction projects, kerb edging and bus stops to shape mobility, infrastructure and road safety.
Trenchless utility pipe laying
Trenchless installation of water, gas, telecommunications and electrical lines using methods such as HDD fluid drilling, directional pressing, Berstlining, Inliner and Erdrakete.
District heating planning
Planning of district heating and district cooling networks, energy hubs, main pipeline networks, service connections and indoor installations, as well as support with funding contributions.
Client support during construction
Support for construction projects for municipalities, utility operators and permitting authorities; coordination, review of building permit applications, quality assurance and representation of interests during the construction process.
Apprentice training
Training of apprentices in civil engineering and building construction with support for qualification exams and instruction in technical knowledge.
Project and construction management
Project and construction management for construction projects from planning through to implementation, including coordination and execution.
CAD drafting
CAD-supported drafting work with detailed plans for various construction projects.
Review of building permit applications
Professional review of building permit applications for legal requirements and building standards on behalf of permitting authorities.
NPK-based scope of work documents
Preparation of scope of work documents according to NPK for tenders and for comparing works, materials and services.
Quantity takeoffs
Calculation of material requirements and costs as a precise basis for planning and execution.
Trust & reputation

ranQ Trust Score of DZ Ingenieure GmbH: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

x

Data basis 96% · As of October 2026

DZ Ingenieure GmbH scores 50.4 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.41.924%
  • 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.35.310%
  • 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%
DZ Ingenieure GmbH scores 65.3 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.50.012%
  • 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%
DZ Ingenieure GmbH 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%
DZ Ingenieure GmbH scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

DZ Ingenieure GmbH reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». The rating draws, among other things, on 2.3 out of 5 stars from 3 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
2.3
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle2.33
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Zürcherstrasse 109
8952 Schlieren
Opening hours
Mon
08:30 - 12:00, 13:30 - 17:00
Tue
08:30 - 12:00, 13:30 - 17:00
Wed
08:30 - 12:00, 13:30 - 17:00
Thu
08:30 - 12:00, 13:30 - 17:00
Fri
08:30 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-185.781.932
Founded
2023 · 3 years
Last commercial register change
May 19, 2026
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.
88.0
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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