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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryIndustryElectrical IndustryZurichR. Tognella GmbH
R. Tognella GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

R. Tognella GmbH is an electrotechnical firm providing expertise, consulting and project management in areas such as network quality/EMC, lightning and surge protection, and electrical installations. Services include specialist planning and QA according to SIA 108, building services coordination, building automation, transformer stations, emergency power systems, energy distribution, CCTV/PBX/networks, troubleshooting and technical fire protection.

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Offering

Products & services

Industry:Electrical Industry
✓ Offered7
Expertise, advisory and project support
Expertise, advisory and project support for electrical engineering, with customer-specific and pragmatic solutions as well as project implementation.
Building services coordination
Project management, specialist designer coordination, TU coordination, matrix leadership on site, coordination with the client representative, as well as contract management, cost planning and controlling.
Electrical installations
Transformer substations, standby power systems, power distribution, CCTV, PBX and networks, as well as electrical specialist site supervision.
Specialist planning and QA mandates
All partial services according to SIA 108, ESTI plan submissions as well as EMC assessment and measurement technology.
Building automation
Coordination of building automation, monitoring of implementation, GLS and SLS systems, concept design and implementation, electrical specialist site supervision.
Technical fire protection
Fire detection systems, evacuation loudspeaker systems, complex RDA, RWA, NRWA and LRWA systems, as well as lightning protection systems and fire protection tasks.
Troubleshooting
Structured project work, pending-items and defects management, and reporting for handling issues in ongoing projects.
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R. Tognella GmbH

Trust & reputation

ranQ Trust Score of R. Tognella GmbH

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

R. Tognella 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.
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%
R. Tognella GmbH scores 83.0 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.55.07%
R. Tognella GmbH 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%
R. Tognella GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

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

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Location

Altwiesenstrasse 366
8051 Zurich

At a glance

Legal form
Limited Liability Company
UID
CHE-108.521.881
Founded
1996 · 30 years
Last commercial register change
August 10, 2011
Employees
1 to 10
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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