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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementRorschachLOG4 GmbH
LOG4 GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

LOG4 GmbH provides owner-representation, planning and realization services in the construction sector. The company delivers consulting, execution and project management, including assembling and comparing heating, ventilation and sanitary (HLS) offers and coordinating trades.

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Offering

Products & services

Industry:Construction & Project ManagementOwner's Representative
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3.7/5

LOG4 GmbH

✓ Offered5
Client advisory
Client advisory for conversions, new builds and renovations; neutral guidance, support from initial planning through to implementation, assistance with selecting materials and products.
Planning and realisation
Planning and realisation of building projects in building and interior fit-out; tailor-made solutions for bathrooms, kitchens, complete renovations and modernisation.
Construction expertise
Technical support for architects, general contractors, insurers and institutional clients; preparation of the required documents and support for complex construction projects.
Carrying out construction work
Organisation and coordination of trades firms to ensure work is carried out properly in accordance with current regulations, standards and project-specific requirements.
Project management
Project management for heating, ventilation and sanitary projects; obtaining, comparing and optimising quotations, as well as neutral advisory support for project implementation.
Trust & reputation

ranQ Trust Score of LOG4 GmbH: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 54% · As of October 2026

LOG4 GmbH 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%
LOG4 GmbH scores 57.1 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.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%
LOG4 GmbH scores 83.3 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).83.322%
LOG4 GmbH scores 1.1 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 35.1.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

LOG4 GmbH reaches a ranQ Trust Score of 3.7 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

Hauptstrasse 43
9400 Rorschach

At a glance

Legal form
Limited Liability Company
UID
CHE-264.034.741
Founded
2024 · 2 years
Last commercial register change
April 16, 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.
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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