ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationChiassoFRATELLI GEROSA SA
FRATELLI GEROSA SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Fratelli Gerosa SA includes: 1. Installation and maintenance of electrical systems, 2. Installation and maintenance of telephone systems, 3. Sales and repair of electrical appliances of all kinds, 4. Telecommunication services, including LAN, WAN, telematics and Ethernet. The company thus offers a combination of electrical and telecommunication services, as well as the sale and repair of electrical appliances.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
✓ Offered5
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
4.2/5

FRATELLI GEROSA SA

Electrical installations
Electrical installations for homes and businesses, with consultation, implementation and technical assistance.
Telecommunications, telematics and telephony
Telecommunications LAN and WAN, telematics Ethernet and Internet, telephony and related technical installations.
Repair service
Repairs of household appliances of all kinds, with support for faults and technical interventions.
Technical office
Consulting and technical support for electrical installations, telecommunications and connected systems.
Alternative systems
Alternative technical solutions for installations and equipment, listed as part of the services offered.
Trust & reputation

ranQ Trust Score of FRATELLI GEROSA SA: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

FRATELLI GEROSA SA scores 74.1 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.77.024%
  • 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.70.510%
  • 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.70.08%
FRATELLI GEROSA SA scores 85.5 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%
FRATELLI GEROSA 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%
FRATELLI GEROSA SA 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

FRATELLI GEROSA SA reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 15 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
4.7
of 5

Aggregated from 15 reviews across all connected sources

Sources
GGoogle4.715
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once FRATELLI GEROSA SA has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

FRATELLI GEROSA SA in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank FRATELLI GEROSA SA by reviews, experience and specialisations.

Is this your company?

Claim the company profile of FRATELLI GEROSA SA to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Corso San Gottardo 117
6830 Chiasso
Opening hours
Mon
08:00 - 12:00, 14:00 - 18:30
Tue
08:00 - 12:00, 14:00 - 18:30
Wed
08:00 - 12:00, 14:00 - 18:30
Thu
08:00 - 12:00, 14:00 - 18:30
Fri
08:00 - 12:00, 14:00 - 18:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.881.742
Founded
1999 · 27 years
Last commercial register change
May 12, 2021
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.70.03%
    • Full methodology

    Similar companies

    SS
    Spinelli SA
    Chiasso
    EM
    Elettricità Mantegani SA
    Lugano
    ES
    Electrasim SA
    Balerna
    E3
    Elettro 3000 Sagl
    Gravesano
    PG
    PFS Global Solutions Sagl
    Agno
    L2
    Luce 2000 SA
    Camorino
    CS
    CONTROLTELEMATICA SA
    Lugano
    MS
    Matasci Sagl
    Gordola