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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsLausanneAL30 architectes Sàrl
AL30 architectes Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

AL30 architectes Sàrl is an architectural practice providing design, project and construction management services and participation in competitions. The firm works on private and institutional commissions and handles projects from concept to execution, including housing, renovations and public or commercial buildings.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered8
Architecture
Design and delivery of architectural projects, with end-to-end project management from A to Z, including design, execution, site supervision and coordination as a general or total contractor.
Architecture competitions
Participation in architecture and MEP competitions for housing schemes, school facilities, urban redevelopments and institutional projects.
Building transformations
Transformation of farmhouses, homes, offices, museums and other existing buildings, adapting spaces and densifying plots while preserving the existing built structure.
Energy retrofitting
Energy retrofitting of buildings, with energy renovation and improvement of the envelope or performance of existing properties.
Vertical extension
Vertical extension of buildings and adaptation of built volumes to create new housing or increase a building’s usable capacity.
Collective housing and PPE
Projects for collective housing, PPE dwellings, subsidised or open-market homes, including residential districts and urban densification.
School buildings and public facilities
Design and transformation of schools, day-care centres, libraries, sports halls, school refectories and other shared facilities.
Offices and retail
Fit-out and transformation of offices, workshops, retail outlets and coworking spaces, sometimes integrated into mixed-use projects.
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4.1/5

AL30 architectes Sàrl

Trust & reputation

ranQ Trust Score of AL30 architectes Sàrl: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

AL30 architectes Sàrl scores 67.0 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.68.324%
  • 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.77.410%
  • 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.50.08%
AL30 architectes Sàrl scores 86.7 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.70.07%
AL30 architectes 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%
AL30 architectes Sàrl scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

AL30 architectes Sàrl reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.4 out of 5 stars from 20 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
4.4
of 5

Aggregated from 20 reviews across all connected sources

Sources
GGoogle4.420
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Avenue d'Ouchy 7
1006 Lausanne
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-114.524.942
Founded
2008 · 18 years
Last commercial register change
August 20, 2010
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.
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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