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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsZurichIngenieurbureau Heierli AG
Ingenieurbureau Heierli AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The company's core activity is civil engineering, particularly in the areas of transportation/infrastructure, structural engineering/special foundation engineering, railway construction and risk/protection. The company offers services such as design, construction management, expert opinions and consulting, and develops technically sophisticated and economically viable overall solutions for public and private clients.

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Products & services

Industry:Civil Engineering Firms
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Ingenieurbureau Heierli AG

7
Traffic / Civil Engineering
Design, site management and delivery of transport infrastructures, roads, drainage systems, utility lines, noise protection and flight operation areas; including maintenance, asset preservation, surveying and expert reports.
Structural Engineering / Special Foundations
Structural design, site management and delivery for building and industrial construction, bridges, bridge refurbishments, special deep construction, geotechnics, excavation support, earthquake analyses, condition assessments and fire protection planning.
Railway Construction
Planning and delivery of railway infrastructures, slab track, ballasted track, turnout design, construction logistics while operations continue, vibration protection, structural monitoring and track-area renewals.
Risk / Protection
Risk assessments, hazard analyses, safety consulting, protection concepts and measures planning against natural hazards, sabotage, terrorism, armed conflicts as well as floodwater and slope stabilization.
Owner Advisory
Advisory for project owners in the design, delivery and preservation of infrastructure facilities as well as for complex tasks in civil engineering, building construction and special deep construction.
Testing Engineer & Expert Services
Structural inspection mandates, expert assignments and reports in road, civil and railway engineering and in structural engineering as well as for earthquakes, load-bearing structures and condition of structures.
Structural Monitoring and Measurement Technology
Condition assessments, crack logs, monitoring measurements, vibration measurements, setting-out, terrain surveys and measurements of the vibration behaviour of structures and railway facilities.
Trust & reputation

ranQ Trust Score of Ingenieurbureau Heierli AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Ingenieurbureau Heierli AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Ingenieurbureau Heierli AG scores 94.3 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.90.07%
Ingenieurbureau Heierli AG scores 83.3 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).83.322%
Ingenieurbureau Heierli AG scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ingenieurbureau Heierli AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Culmannstrasse 56
8006 Zurich

At a glance

Legal form
Corporation
UID
CHE-105.960.505
Founded
1975 · 51 years
Last commercial register change
July 5, 2024
Employees
51 to 100
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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