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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringLausannePerenzia Ingénieurs Sàrl
Perenzia Ingénieurs Sàrl Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Perenzia is the provision of engineering services in the field of building physics, energy and biodiversity. Specifically, this includes: building physics, including natural and hybrid ventilation; energy management and monitoring; ecology and renaturation of territories, rivers and lake shores; biodiversity and construction; and hydraulic engineering. The company thus offers a wide range of services aimed at designing and developing buildings and territories in a sustainable and environmentally friendly manner.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
✓ Offered5
Building physics
Building physics studies, focusing on natural ventilation, low-tech solutions and energy monitoring.
AMO territorial ecology
Owner’s project management advisory in territorial ecology, to integrate environmental issues into projects and territories.
River and lake shoreline renaturation
Studies and support for the renaturation of rivers and the renaturation of lake shorelines.
Biodiversity and construction
Advice and studies on integrating biodiversity into construction projects.
Water engineering
Engineering services related to water engineering, linked to renaturation and development projects.
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4.1/5

Perenzia Ingénieurs Sàrl

Trust & reputation

ranQ Trust Score of Perenzia Ingénieurs Sàrl: 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.

Perenzia Ingénieurs Sàrl 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%
Perenzia Ingénieurs Sàrl scores 79.8 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.92.512%
  • 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%
Perenzia Ingénieurs Sàrl 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%
Perenzia Ingénieurs Sàrl scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Perenzia Ingénieurs Sàrl 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

Avenue Edouard-Dapples 17
1006 Lausanne
Opening hours
Mon
09:00 - 17:00
Tue
09:00 - 17:00
Wed
09:00 - 17:00
Thu
09:00 - 17:00
Fri
Closed
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-454.472.017
Founded
2014 · 12 years
Last commercial register change
November 8, 2022
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.
88.0
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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