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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsRorschachschwarz & partner ag, bauunterstützung
schwarz & partner ag, bauunterstützung Logo
Verified· 2 sourcesTrust Score
Summary

About the company

schwarz & partner ag, bauunterstützung provides construction support services including project management, site supervision and general planning. Its services also include advisory work, project optimisation, client representation, architecture and execution planning for small to medium-sized building projects.

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Products & services

Industry:Civil Engineering Firms
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4.0/5

schwarz & partner ag, bauunterstützung

6
Project management
Project management for construction projects from planning to completion; coordination of specialist planners, bringing specialists together and efficient control of project execution.
General planning
General planning with overall responsibility for construction projects; coordination of all project phases, a single point of contact from start to finish, and smooth implementation until completion.
Architecture
Architecture for small and medium-sized building projects; architectural management, detailed design, coordination with the client and consideration of functional and sustainable aspects.
Site supervision
Site supervision for the construction site; coordination of all specialist trades on site, guiding execution and implementing project objectives up to handover.
Project optimisation
Project optimisation with an external second opinion for ongoing construction projects; identification of optimisation potential and development of simple, rational solutions.
Client representation
Client representation with authorities and planners; advisory support, second opinion and representation of the client throughout the project.
Trust & reputation

ranQ Trust Score of schwarz & partner ag, bauunterstützung: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

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Data basis 54% · As of October 2026

schwarz & partner ag, bauunterstützung 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%
schwarz & partner ag, bauunterstützung scores 67.5 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.58.012%
  • 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.55.07%
schwarz & partner ag, bauunterstützung 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%
schwarz & partner ag, bauunterstützung scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

schwarz & partner ag, bauunterstützung reaches a ranQ Trust Score of 4.0 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

Pestalozzistrasse 11
9400 Rorschach

At a glance

Legal form
Corporation
UID
CHE-232.094.130
Founded
2022 · 4 years
Last commercial register change
August 13, 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.100.06%
  • 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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