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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialized Construction ActivitiesNyonProma S.A.
Proma S.A. Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Proma SA consists of the manufacture, installation and maintenance of sun protection systems, interior blinds and insect screens for various types of buildings, including residential homes, office buildings, hotels and industrial facilities.

AI-generated
Offering

Products & services

Industry:Specialized Construction Activities
✓ Offered5
Outdoor sun protection
Custom sun protection for houses, apartment buildings, hotels, retail, industry and offices; canvas awnings, basket awnings, pergolas, parasols, shutters and louvered shutters.
Indoor sun protection
Custom indoor sun protection for furnishing spaces; Japanese panels, vertical band curtains, Venetian blinds, roller blinds, American blinds and pleated blinds.
Insect screens
Custom insect screens for protection against insects; roll-up, pleated, hinged door, sliding door and fixed frame versions.
Motorisation and automation
Motorisation and automation for all types of blinds and awnings, with systems geared towards comfort, modernity and new technologies.
Service, maintenance and repair
Service, advice, maintenance and repair for all types of installations, including measurements, free quotation and intervention on existing installations.
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3.8/5

Proma S.A.

Trust & reputation

ranQ Trust Score of Proma S.A.: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Proma S.A. scores 46.9 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.17.624%
  • 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.78.610%
  • 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%
Proma S.A. 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%
Proma S.A. 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%
Proma S.A. scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Proma S.A. reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 2.9 out of 5 stars from 21 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
2.9
of 5

Aggregated from 21 reviews across all connected sources

Sources
GGoogle2.921
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Chemin des Vignes 3
1260 Nyon
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:30 - 12:00, 13:30 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.751.760
Founded
1976 · 50 years
Last commercial register change
July 1, 2024
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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