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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionNussbaumen AgFrunz Bauunternehmung AG
Frunz Bauunternehmung AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Frunz Bauunternehmung AG encompasses the planning and execution of construction projects in various areas, particularly: * Building construction: Erection of buildings and structures * Civil engineering: Execution of terrain adjustments, excavation, creation of forecourts and rainwater basins, as well as engineering civil engineering projects * Additions and renovations: Renovation and refurbishment of existing buildings and structures * Customer masonry/renovation: Execution of masonry work and renovations for customers * Hazardous substance remediation: Remediation of buildings and structures contaminated with hazardous substances * Crane work: Execution of crane work for construction projects * Snow removal: Execution of snow removal work * Fire compartmentalization: Execution of fire compartmentalization work The company also offers real estate services and has its own hazardous substance remediation company.

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Offering

Products & services

Industry:Building Construction
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Frunz Bauunternehmung AG

Building Maintenance
Civil Engineering
✓ Offered6
Building construction
Building construction for residential developments, single- and multi-family houses, commercial buildings and agricultural buildings; exposed concrete, modern architecture and support with renovations, extensions, alterations and masonry work.
Civil engineering
Civil engineering with terrain adjustments, trench excavation, smaller forecourts, rainwater basins, underground engineering structures as well as sewerage works and repairs; advice from planning through to implementation.
Renovation
Exterior and interior renovations, façade renovation, renovating bathrooms, converting kitchens, as well as planning and coordination with tradespeople; on request also demolition work and visualisation.
Masonry work for clients
Masonry work for renovation projects and smaller building jobs; general masonry work in connection with extensions, alterations and renovation.
Concrete restoration
Planning and execution of concrete restoration works; assessment, treatment or removal of corroded reinforcement steel and reprofiling of surfaces to restore durability.
Hazardous substance remediation
Hazardous substance remediation in connection with construction and renovation work, in particular asbestos remediation and accompanying demolition work.
Trust & reputation

ranQ Trust Score of Frunz Bauunternehmung 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.

Frunz Bauunternehmung 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%
Frunz Bauunternehmung AG scores 86.1 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.92.512%
  • 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.70.07%
Frunz Bauunternehmung 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%
Frunz Bauunternehmung AG scores 42.9 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 35.42.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Frunz Bauunternehmung 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.

Knowledge

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Location

Landstrasse 170
5415 Nussbaumen Ag

At a glance

Legal form
Corporation
UID
CHE-418.361.385
Founded
2014 · 12 years
Last commercial register change
January 21, 2022
Employees
11 to 20
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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