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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,837 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureOwner's RepresentativeAarwangenT + B Treuhand & Bauleistungen GmbH
T + B Treuhand & Bauleistungen GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

T + B Treuhand & Bauleistungen GmbH provides construction management and fiduciary services, performing site supervision, construction administration, permit submissions, tendering, cost control and scheduling. The company also offers client representation, condition surveys and real-estate advisory services.

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T + B Treuhand & Bauleistungen GmbH

✓ Offered11
Construction management
Management of construction projects from planning to completion, coordination between clients, architects and specialist planners, monitoring schedules, budgets and execution.
Site supervision
Coordination and management of the construction site, work and safety inspections, construction accounting and site logbook, management of warranty work.
Construction execution
Construction execution for general contractors, invoicing in the SORBA construction software, coordination of subcontractors.
Building permit application
Advisory, building permit application forms, site and permit plans, and support through to the building approval.
Tendering
Tenders with Messerli, obtain bids, compare and review bids, contract negotiations up to the contract for work.
Cost planning and control
Cost estimates and preliminary costings, systematic construction cost tracking, accounting and control of contractors' invoices, quantities and documentation.
Schedule planning
Planning of work sequences, schedule coordination and graphical display of planning and construction progress.
Construction consulting / Client representation
Advisory on contracts for work and site supervision, second opinions for clients.
Condition inspection
Inspection of the structural substance of real estate, preparation of real estate documentation, documentation of individual building components.
Calculation for general contractor work
Cost calculation and bill of quantities for the general contractor trade, settlement of general contractor costs.
Trust / Real estate consulting
Expert reports and building valuations, overall offers as a general contractor (GU) offer, advice for buying and selling real estate including the plot.
Trust & reputation

ranQ Trust Score of T + B Treuhand & Bauleistungen GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

T + B Treuhand & Bauleistungen GmbH scores 53.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.70.824%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.27.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
T + B Treuhand & Bauleistungen GmbH scores 75.7 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.83.012%
  • 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%
T + B Treuhand & Bauleistungen GmbH scores 85.0 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).85.022%
T + B Treuhand & Bauleistungen GmbH scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

T + B Treuhand & Bauleistungen GmbH reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Weierweg 3
4912 Aarwangen
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-148.979.275
Founded
2017 · 9 years
Last commercial register change
September 22, 2017
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.88.06%
  • 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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