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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsLausanneRoman Schirmer - SEA - Sustainably Engineering Architecture
Roman Schirmer - SEA - Sustainably Engineering Architecture Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The company SEA - Engineering Architecture primarily focuses on architecture and engineering, particularly on the planning, development, and implementation of construction projects. The core activities include: Architecture and engineering, Project management and development, Technical planning and implementation of complex projects, Sustainable building and energy efficiency (energy, comfort, and climate), Specialized services such as high-performance insulation and direct solar radiation, Digital engineering and transdisciplinary approaches, Development of furniture prototypes and models. The company also offers consulting and services for professionals and has a strong focus on sustainability and innovative materials.

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Products & services

Industry:Architecture Firms
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3.6/5

Roman Schirmer - SEA - Sustainably Engineering Architecture

✓ Offered4
Architecture and Engineering
Architecture, civil engineering and technical development of building projects and works of art; design phases, technical refinement, construction drawings and BIM.
Project Management & Methods
Project management and methods for technical mandates, including fatigue-damage analysis, calculations according to Eurocode and support for infrastructure projects.
Furniture Design
Design of furniture and interior fittings, in particular tables, lamps, shelving units and individual or series pieces.
Prototypes and Models
Production of prototypes and mock-ups for the formal, structural and constructive exploration of projects.
Trust & reputation

ranQ Trust Score of Roman Schirmer - SEA - Sustainably Engineering Architecture: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

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Data basis 54% · As of October 2026

Roman Schirmer - SEA - Sustainably Engineering Architecture 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%
Roman Schirmer - SEA - Sustainably Engineering Architecture scores 52.6 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.39.612%
  • 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%
Roman Schirmer - SEA - Sustainably Engineering Architecture 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%
Roman Schirmer - SEA - Sustainably Engineering Architecture scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Roman Schirmer - SEA - Sustainably Engineering Architecture reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». 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

Chemin des Avelines 12
1004 Lausanne

At a glance

Legal form
Sole proprietorship
UID
CHE-432.313.439
Founded
2024 · 2 years
Last commercial register change
November 28, 2024
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.67.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
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