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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureGeneral ContractorsSt. Margrethen Sgi+R Industrie- & Gewerbebau AG
i+R Industrie- & Gewerbebau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

i+R Industrie- & Gewerbebau AG is a construction company that serves as a total and general contractor for industrial and commercial buildings. Its services include building and civil engineering, specialist deep foundation work, timber construction and related construction services.

AI-generated
Offering

Products & services

Industry:General Contractors
✓ Offered12
Total and general contracting
Total and general contracting for building projects, from project development and planning to coordination and turnkey handover with a dedicated point of contact.
Industrial construction
Industrial construction for production sites, logistics centres and specialised commercial buildings, aligned with operational processes, cost-effective implementation and long-term use.
Commercial construction
Commercial construction for companies focused on architecture, material selection and building identity, implemented as a construction project with i+R as partner.
Hotel construction
Hotel construction with support for investors and developers, including planning, execution, clear processes and turnkey delivery.
Existing building work
Existing building work for conversion, expansion and change of use of existing buildings, with enhancements for future use.
Municipal construction
Municipal construction for public buildings with robust construction methods, good usability and architecture for long-term use in the municipal context.
Residential construction
Residential construction projects for investors, municipalities and property holders as general contractor, total contractor or developer, implemented turnkey and in a structured manner.
Building & civil engineering
Building and civil engineering with execution quality and compliance with costs and deadlines for construction projects of varying size.
Special deep foundation work
Special deep foundation work with pile foundations, excavation support and sprayed concrete sealing, accompanied from planning through acceptance.
Small construction sites
Small construction sites for smaller building contracts such as shell construction for single-family homes or the construction of retaining walls.
Ground-source heat & well drilling
Ground-source heat and well drilling for heating or cooling, using geothermal energy as the energy source.
Timber construction
Timber construction for industrial, hall, special-purpose, residential and municipal buildings, with planning, structural calculations, in-house production and assembly.
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4.1/5

i+R Industrie- & Gewerbebau AG

Trust & reputation

ranQ Trust Score of i+R Industrie- & Gewerbebau AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of October 2026

Without public customer reviews the score stays capped.

i+R Industrie- & Gewerbebau 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.
x
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%
i+R Industrie- & Gewerbebau AG scores 92.3 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.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%
i+R Industrie- & Gewerbebau AG scores 85.0 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).85.022%
i+R Industrie- & Gewerbebau AG scores 52.2 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 35.94.34%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

i+R Industrie- & Gewerbebau 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 58%, 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.

Press

Media

March 22, 2023Media
i+R baut neuen Firmensitz für Stadler Blechtechnik
leaderdigital.ch

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Location

Bahnhofstrasse 9
9430 St. Margrethen Sg

At a glance

Legal form
Corporation
UID
CHE-116.154.626
Founded
2010 · 16 years
Last commercial register change
April 22, 2025
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.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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