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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsGenevaAtelier Oleg Calame
Atelier Oleg Calame Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Atelier Oleg Calame is an architectural practice that carries out design studies and project work for housing, single‑family houses, renovations and conversions, as well as urban‑planning studies and competition entries.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered5
Architect EPFL, SIA
Architecture for residential housing, individual houses, conversions-renovations and urban planning; studies, projects, realisations, competitions and mandates for residential buildings and public spaces.
Residential buildings
Residential buildings, subsidised housing, student housing and mixed-use buildings with retail, offices and garages.
Individual houses
Projects and builds of individual villas and semi-detached villas, with pool, pool house and garage.
Conversions and renovations
Renovations and transformations of buildings, villas, village houses and apartment blocks; extensions, storey additions and arrangements of terraces and roofs.
Urban development planning
Studies and realisations of development for courtyards, squares, streets and housing districts; feasibility, redevelopment and semi-public spaces.
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4.1/5

Atelier Oleg Calame

Trust & reputation

ranQ Trust Score of Atelier Oleg Calame: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Atelier Oleg Calame 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.
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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%
Atelier Oleg Calame scores 85.2 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.82.07%
Atelier Oleg Calame 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%
Atelier Oleg Calame scores 1.1 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.1.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Atelier Oleg Calame 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 de Miremont 8 C
1206 Geneva

At a glance

Legal form
Sole proprietorship
UID
CHE-110.185.166
Founded
2003 · 23 years
Last commercial register change
February 9, 2021
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.
67.0
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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