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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringGenevaPSA - PERRIN, SPAETH & ASSOCIES - BUREAU D'INGENIEURS CONSEILS SA
PSA - PERRIN, SPAETH & ASSOCIES - BUREAU D'INGENIEURS CONSEILS SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

PSA (Perrin, Spaeth & Associés) is an engineering firm specializing in the planning and development of complex and innovative electrical installations. The company's core activity is the creation of studies and projects in the field of electrical engineering, particularly in the areas of high voltage, low voltage and renewable energies. The company works closely with architects and builders to develop customized solutions for their projects.

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Offering

Products & services

Industry:Technical Consulting & EngineeringElectrical Planning & Installation
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4.1/5

PSA - PERRIN, SPAETH & ASSOCIES - BUREAU D'INGENIEURS CONSEILS SA

✓ Offered12
Electrical engineering
Electrical installation studies for public and private buildings, sports centres, commercial and thermal facilities, industrial buildings, schools, restaurants and buildings of a medical nature.
Technical and energy audits
Technical and energy audits, with analysis of the technical, energy and economic aspects of installations and consideration of comfort and operating costs.
Building conversion and renovation
Studies and works for the conversion and renovation of buildings of all types, coordinating technical and architectural constraints.
Project coordination
Project coordination for sustainable construction, with a dedicated project team and a responsible project manager as the client’s main point of contact.
Preventive assessments and loss investigations
Preventive assessments and loss investigations for electrical installations and complex technical situations.
High- and low-voltage installations
Engineering of high- and low-voltage installations, including power supply for equipment, safety of premises and connectivity for communication systems.
Centralised building management and telecommunications
Centralised building management, telematics projects, telecommunications, multimedia and video conferencing for buildings and technical equipment.
Security for people and property
Design of security systems for buildings, including protection of people and property in public, private and technical contexts.
Design of lighting installations
Design of lighting installations for buildings and spaces, with integration of architectural constraints and operational comfort requirements.
Energy-saving studies and renewable energies
Studies on energy savings, renewable energies, managing consumption and the design of installations with high energy performance.
Design of RCP and micro-grid networks
Design of RCP networks (Regroupement de consommation Propre) and micro-grids for the distribution and optimization of site energy.
BIM coordination
BIM coordination for electrical engineering projects, supporting client needs and the management of complex projects.
Trust & reputation

ranQ Trust Score of PSA - PERRIN, SPAETH & ASSOCIES - BUREAU D'INGENIEURS CONSEILS SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

PSA - PERRIN, SPAETH & ASSOCIES - BUREAU D'INGENIEURS CONSEILS SA has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
PSA - PERRIN, SPAETH & ASSOCIES - BUREAU D'INGENIEURS CONSEILS SA scores 89.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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.70.07%
PSA - PERRIN, SPAETH & ASSOCIES - BUREAU D'INGENIEURS CONSEILS SA scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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).83.322%
PSA - PERRIN, SPAETH & ASSOCIES - BUREAU D'INGENIEURS CONSEILS SA scores 14.0 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 35.14.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

PSA - PERRIN, SPAETH & ASSOCIES - BUREAU D'INGENIEURS CONSEILS SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Rue de la Prairie 19
1202 Geneva

At a glance

Legal form
Corporation
UID
CHE-107.412.396
Founded
1992 · 34 years
Last commercial register change
December 19, 2022
Employees
11 to 20
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.100.06%
  • 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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