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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,888 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementLyssHänzi Bauleitungen GmbH
Hänzi Bauleitungen GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Hänzi Bauleitungen GmbH provides construction management, project management and site supervision, together with client advisory services, cost planning and cost control for new-build and renovation projects. Specific services include tender documentation (NPK), scheduling, contract award, on-site supervision, construction accounting and coordination of warranty work.

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Hänzi Bauleitungen GmbH

✓ Offered10
Site management
Organisation and management of the construction site, monitoring of work and safety, coordination of new-build, conversion and renovation projects up to handover.
Project management
Support for construction projects from cost estimating through tendering and award to project handover, including scheduling and workflow organization.
Construction management
Control of costs, schedules and procedures, including cost monitoring, bid comparison, invoice and quantity surveying checks, and construction close-out accounting.
Client advisory
Advisory services for private and public clients on complex new-build and conversion projects, including support with costs, schedules and execution.
Cost planning
Preparation of cost estimates and detailed cost forecasts for new builds, renovations and conversions.
Tendering
Preparation of performance specifications using standard positions (NPK) for construction projects.
Schedule planning
Schedule coordination and planning of work processes for construction projects.
Awarding of work packages
Tender review, preparation of bid comparisons and negotiations on revised bids for construction contracts.
Construction accounting
Invoice and quantity surveying checks, monitoring of construction costs and project close-out billing during execution.
Warranty work management
Coordination and monitoring of two-year warranty work after project completion.
Trust & reputation

ranQ Trust Score of Hänzi Bauleitungen GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Hänzi Bauleitungen GmbH scores 53.7 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.63.324%
  • 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.45.610%
  • 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%
Hänzi Bauleitungen GmbH scores 83.0 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.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%
Hänzi Bauleitungen 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%
Hänzi Bauleitungen GmbH scores 37.1 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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Hänzi Bauleitungen GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 out of 5 stars from 5 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
4.2
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.25
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Sonnhalderain 15
3250 Lyss

At a glance

Legal form
Limited Liability Company
UID
CHE-104.812.411
Founded
1998 · 28 years
Last commercial register change
June 19, 2025
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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