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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringOltenNabla Ingenieure GmbH
Nabla Ingenieure GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The company "nabla engineering" provides engineering services for the planning, development, and safety of transportation and infrastructure facilities, particularly underground and above-ground installations. The core activities include: risk and safety analyses, ventilation planning, accompaniment and operation of facilities, and development and application of specific tools (nablaTOOLS) for the planning and simulation of facilities. The company positions itself as a partner for customers in solving challenges in the field of transportation and infrastructure planning, offering innovative and object-specific solutions.

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Offering

Products & services

Industry:Technical Consulting & Engineering
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4.1/5

Nabla Ingenieure GmbH

✓ Offered7
Tunnel ventilation
Services covering tunnel ventilation in road, rail and energy-supply duct tunnel sectors, as well as the planning of the associated HVAC systems for central facilities.
Risk & Safety
Safety-related issues, safety assessments, safety expert reports, safety analyses, incident prevention and risk considerations for road and railway tunnels as well as special fields.
Support for operations
Support after project implementation with operating concepts, a role as safety officer, a safety culture, and assistance in optimising tunnel operations.
nabla CONTROL
Digital tunnel model in Matlab Simulink for planning through operation of tunnel ventilation systems, real-time simulation, control development and coupling with PLC control.
nabla RISK
Risk analyses for road traffic tunnels according to Swiss and German requirements, as well as assessment of the permissibility of hazardous goods transport.
nabla DIGITALTWIN
Digital tunnel twin for coupling to automation, as a test tool for PLC programming and as a training tool for tunnel operators.
nablaTHERM
Calculation of flow and temperature fields in energy-supply duct tunnels to clarify environmental engineering questions and develop ventilation strategies.
Trust & reputation

ranQ Trust Score of Nabla Ingenieure GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Nabla Ingenieure GmbH 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.
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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%
Nabla Ingenieure GmbH scores 82.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.89.612%
  • 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%
Nabla Ingenieure GmbH scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Nabla Ingenieure GmbH scores 22.9 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Nabla Ingenieure GmbH 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

Salzhüsliweg 4
4600 Olten

At a glance

Legal form
Limited Liability Company
UID
CHE-300.058.018
Founded
2015 · 11 years
Last commercial register change
April 1, 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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