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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementNussbaumen AgA2Bauex GmbH
A2Bauex GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of A2 Bauex GmbH encompasses the execution of construction projects, including construction management, project management, renovation and refurbishment, as well as specific craft services such as plumbing, flat and pitched roof work, painting, flooring, plastering, façade work and core drilling. The company offers a comprehensive 'all-in-one' solution for builders, from planning and budgeting to execution and acceptance of construction projects.

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Products & services

Industry:Construction & Project Management
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A2Bauex GmbH

✓ Offered12
Construction site supervision
Coordination for new builds, conversions and fit-outs; neutral consulting, supervision of ongoing construction activities, monitoring construction progress, coordination with trades, authorities and architects.
Tendering and award documentation
Tender date schedule, detailed scope descriptions, coordination of interfaces, preparation of tender documents, collection of bids, price comparisons, bidder meetings and award proposals.
Schedule planning
Preparation and ongoing updating of schedules with risk buffers, target-vs-actual comparisons, appointment monitoring and countermeasures in case of deviations.
Conversion and renovation
Conversion and renovation work from a single source, including planning, budgeting, coordination of the trades and execution for house and apartment projects.
Sheet metal works
Gutters, pipes, wall copings, fascia/soffit sheets, wall junctions, precision sheet metal work, metal standing-seam technique, lightning protection and fall protection systems.
Flat and pitched roofing works
Roof waterproofing for flat and pitched roofs, thermal insulation, roof windows for roof surfaces and Velux windows, roofing coverings, Sarnafil and Contec waterproofing systems, solar installations.
Innovative roof maintenance
Roof cleaning and moss removal, inspection of fall protection systems for pitched and flat roofs, reading of leak sensors, inspection of sheet metal and roofing contractor work, photo documentation.
Painting works
Interior and exterior painting work, decorative painting, wallpapering, varnishing, mould remediation, facade cleaning and graffiti-protection surfaces.
Flooring works
Installation of laminate, vinyl, PVC, carpet, liquid plastic coatings, garden flooring, wooden floors and terrace tiles or fine porcelain tiles.
Plastering works
Plastering work of all kinds, dry-wall construction, crack repairs, white, smooth and structured plasters, as well as decorative plasters.
Facade works
External thermal insulation composite systems, render systems, facade coatings, ventilated rainscreen facade systems, renovation and protection systems, facade cladding.
Core drilling
Dry and wet core drilling in concrete, stone and masonry, at angles and overhead, for conduits, pipes, conduits/ducts, chimney pipes and service lines.
Trust & reputation

ranQ Trust Score of A2Bauex GmbH

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

A2Bauex 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.
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%
A2Bauex GmbH scores 65.0 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.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%
A2Bauex 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%
A2Bauex GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Haldenstrasse 20
5415 Nussbaumen Ag

At a glance

Legal form
Limited Liability Company
UID
CHE-279.423.146
Founded
2022 · 4 years
Last commercial register change
May 29, 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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