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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsChurTuffli & Partner AG
Tuffli & Partner AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Tuffli & Partner AG is a civil engineering firm providing planning and consulting services for transport infrastructure, utilities and wastewater systems, structural engineering, environmental engineering, noise and acoustics, safety, and project/client support.

AI-generated
Offering

Products & services

Industry:Civil Engineering Firms
✓ Offered7
Transport infrastructure
Studies, concepts, expert reports, project development, construction management, RSA, RSI, monitoring and construction acceptances for road construction, transport routes, railway facilities, pedestrian and two-wheel facilities.
Water supply and disposal
Renovation and expansion of water supply, municipal sewerage and utility pipeline construction including cable duct systems; studies, concepts, hydraulic and economic calculations, multi-year maintenance programmes.
Structural civil engineering
Design, project development, site inspections, construction management and construction acceptances for stream culverts, retaining structures and excavation shoring.
Environment
Environmental impact assessments, environmental planning, environmental construction supervision, water engineering, river restorations and flood protection; from studies and concepts to project development, construction management and construction acceptances.
Noise and acoustics
Noise expert reports, noise assessments, noise burden inventories and noise measurements; support during conception, planning and construction phases.
Safety
Advisory on road safety, health and fire protection, emergency planning and occupational safety; hazard analyses, risk assessments, safety concepts, measures planning, audits and training.
Client support and project management
Client support, procurement of planners, coordination mandates, overall management and executive supervision for large and small projects, municipal engineering, site access development and contribution procedures.
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4.1/5

Tuffli & Partner AG

Trust & reputation

ranQ Trust Score of Tuffli & Partner 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.

Tuffli & Partner 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.
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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%
Tuffli & Partner AG scores 95.5 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%
Tuffli & Partner 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%
Tuffli & Partner AG scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Tuffli & Partner 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

Gäuggelistrasse 20
7000 Chur

At a glance

Legal form
Corporation
UID
CHE-105.950.872
Founded
1988 · 38 years
Last commercial register change
May 19, 2022
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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.100.03%
    • Full methodology

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