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

About the company

The core activity of RaumUnion AG is the planning and realization of construction projects, particularly in the fields of architecture and construction management. The company offers comprehensive services, including project development, general planning, general and total contractor services, as well as project and construction management. It supports various target groups, such as institutional investors, real estate funds, private investors, the public sector, foundations, and cooperatives, in the realization of construction projects.

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Products & services

Industry:Construction & Project Management
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RaumUnion Support AG

✓ Offered8
Construction management
Construction management for new builds and renovations of multi-family houses, housing developments, hotels, hospital and healthcare buildings, as well as industrial, commercial and office complexes.
General contractor and total contractor services
General contractor and total contractor services for construction projects, including implementation according to the project-related model and coordination of the construction execution.
Project and construction management
Project and construction management for construction projects, with coordination of processes and support of the client regarding quality, costs and schedules.
General planning
General planning for construction projects, tailored to full or partial services and adapted to the respective project model.
Architecture
Architecture for new builds and renovations, with project-specific solutions for residential, hotel, healthcare, industrial, commercial and office projects.
Project development
Project development for construction projects, from analysis and space planning to development and implementation of the project.
Space planning
Space planning as part of project analysis and development for construction projects and site development projects.
Brokerage and securing of land
Brokerage and securing of land as a preliminary service for building and development projects.
Trust & reputation

ranQ Trust Score of RaumUnion Support AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

RaumUnion Support AG 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%
RaumUnion Support AG scores 85.5 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.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.55.07%
RaumUnion Support AG 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%
RaumUnion Support AG scores 71.4 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 35.71.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

RaumUnion Support AG 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

Säntisblickstrasse 2
8580 Amriswil

At a glance

Legal form
Corporation
UID
CHE-105.179.361
Founded
1999 · 27 years
Last commercial register change
June 19, 2023
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.
100.0
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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