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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryRetail & CommerceWholesale - Construction & Raw MaterialsVernierJÉROME SA
JÉROME SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

JÉROME SA supplies construction materials and tools for both structural and finishing trades, covering façades, carpentry, masonry, roofing, plastering, landscaping and floor/sanitary coverings. The company maintains stock, provides site delivery with its fleet of trucks and offers CNC machining and technical support for material processing.

AI-generated
Offering

Products & services

Industry:Wholesale - Construction & Raw Materials
✓ Offered7
Building materials
Complete range of building materials for structural work and finishing work, available from stock and deliverable to the jobsite.
Delivery service
Delivery of materials from stock in the canton of Geneva and surrounding areas, with trucks equipped with a crane or a hydraulic tailboard for unloading.
CNC machining
Machining of materials with a 4-axis CNC machine: cutting, drilling and milling of fibre-cement, compact panels, plaster, wood panels and fireproof boards.
Tools, PPE, signage
Tools for construction sites, personal protective equipment for employees, as well as fences and signage.
Roofing, waterproofing
Materials for flat roofs and pitched roofs: bituminous felt, PIR, EPS and XPS insulation boards, roof tiles, slates and accessories.
Civil engineering
Materials for roadworks and civil engineering projects: PVC, PE and PP pipes, glass fibre, geotextile, cast iron for roadworks, concrete pipes, channel drains and kerbstones.
Flooring and sanitary
Flooring and sanitary products, including tiles, parquet and sanitary installations, presented through the showroom and the warehouse linked to Planella SA.
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4.5/5

JÉROME SA

Trust & reputation

ranQ Trust Score of JÉROME SA: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

JÉROME SA scores 84.4 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.74.324%
  • 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.100.010%
  • 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.95.08%
JÉROME SA scores 92.3 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.82.07%
JÉROME 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%
JÉROME SA scores 60.0 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 35.60.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

JÉROME SA reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.5 out of 5 stars from 139 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
4.5
of 5

Aggregated from 139 reviews across all connected sources

Sources
GGoogle4.5139
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Hier entsteht die Karte
Chemin de la Croisette 5
1214 Vernier
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.821.036
Founded
2001 · 25 years
Last commercial register change
February 8, 2024
Employees
21 to 50
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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