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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationBiascaTettamanti & Rodoni SA
Tettamanti & Rodoni SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of TETTAMANTI & RODONI -SA- BIASCA is the planning, implementation and automation of electrical systems, processes and systems, including telematics and switchgear, particularly in the industrial sector.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
✓ Offered8
Electrical installations for residential and industrial buildings
Complete electrical installations for multi-purpose buildings, homes, offices and commercial premises; new builds, renovations, private-customer and company installations.
Planning and project design for electrical systems
Planning of customised electrical systems, technical specifications, light calculations, electrical schematics and plans, and support through to execution.
Switchboard construction
Design, assembly, testing and certification of distribution and automation switchboards, as well as modifications and extensions of existing systems.
Building and industrial automation (PLC)
Programming and installation of SPS/PLC systems for industrial processes, control and monitoring systems, as well as maintenance and upgrades.
Telecommunications and data networks
Fibre optics, structured Cat. 6/7 cabling, company networks and telecommunication systems for residential and business customers.
Photovoltaics and EV charging infrastructure
Photovoltaic systems, charging stations for electric vehicles, energy storage, and advice on funding grants and subsidies.
Service, maintenance and repairs
Rapid fault rectification, repairs and replacement work, scheduled maintenance, and diagnosis and troubleshooting of electrical systems.
RaSi inspections and safety certificates
Final inspections, periodic tests, confirmation of compliance and advice on OIBT/NIBT requirements for electrical installations.
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4.2/5

Tettamanti & Rodoni SA

Trust & reputation

ranQ Trust Score of Tettamanti & Rodoni SA: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Tettamanti & Rodoni SA scores 72.9 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.78.324%
  • 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.78.08%
Tettamanti & Rodoni SA scores 87.1 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%
Tettamanti & Rodoni SA 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%
Tettamanti & Rodoni SA scores 3.7 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 35.3.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Tettamanti & Rodoni SA reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.9 out of 5 stars from 8 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
4.9
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle4.98
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Via Dragone 1
6710 Biasca

At a glance

Legal form
Corporation
UID
CHE-105.860.329
Founded
1974 · 52 years
Last commercial register change
January 26, 2026
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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.85.03%
    • Full methodology

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