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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil engineerPorrentruyBUCHS & PLUMEY SA
BUCHS & PLUMEY SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

BUCHS & PLUMEY SA is an engineering consultancy working in structural engineering, civil engineering and infrastructure projects. Its services also include spatial planning and mobility and transport planning.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Civil engineer
✓ Offered4
Structural engineering
Design and structural analysis (sizing) of load-bearing structures for new or converted buildings, as well as bridges, footbridges, tunnels and covered trenches.
Civil engineering
Design, construction, operation and rehabilitation of road, motorway, rail and underground infrastructures, including tendering, coordination and site management.
Spatial planning
Master plans, local development plans, opportunity reports, special plans and special infrastructure plans for territorial development.
Mobility and transport
Traffic surveys, transport planning, parking management, safety audits, traffic control during construction and company mobility plans.
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4.2/5

BUCHS & PLUMEY SA

Trust & reputation

ranQ Trust Score of BUCHS & PLUMEY SA: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of November 2026

BUCHS & PLUMEY SA scores 60.4 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.70.824%
  • 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.27.910%
  • 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.70.08%
BUCHS & PLUMEY 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%
BUCHS & PLUMEY SA scores 86.7 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).86.722%
BUCHS & PLUMEY SA scores 80.0 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 35.80.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BUCHS & PLUMEY SA reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 2 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

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Location

La Rochette 9
2900 Porrentruy

At a glance

Legal form
Corporation
UID
CHE-113.018.895
Founded
2006 · 20 years
Last commercial register change
June 24, 2026
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

    Active in 1 of 26 cantons · 50 municipalities

    • District de Delémont
    • District de Porrentruy
    • District des Franches-Montagnes

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