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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringFrauenfeldKuster + Hager AG Frauenfeld
Kuster + Hager AG Frauenfeld Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Kuster + Hager AG Frauenfeld is an engineering and consulting office for civil engineering. The office provides planning and advisory services in areas such as water and environmental planning, building and civil engineering, drainage, road construction, and expert reports and project coordination.

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Offering

Products & services

Industry:Technical Consulting & Engineering
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4.0/5

Kuster + Hager AG Frauenfeld

✓ Offered7
Civil engineering
Sewer systems, access roads and special structures such as stormwater treatment basins, pumping stations and overflow relief works; support from tendering through handover.
Site development planning
Development concepts for residential buildings, commercial sites and industrial areas; integrated water, wastewater, energy and traffic solutions for private clients, consortia and the public sector.
Road construction
Planning and implementation of access roads, site access, sidewalks and squares; renovation and expansion of existing traffic areas, traffic calming and barrier-free connections.
Water supply
Planning and implementation of supply systems with groundwater pumping plants, intermediate pumping stations, reservoirs and distribution networks; solutions for service water and fire-fighting water.
Municipal drainage
General drainage planning (GEP) and GIS, calculation of sewer networks for new builds, renovations and extensions; best-variant assessment and sewerage engineering.
Expert reports and assessments
Technical reports on structural safety, construction defects and material quality; specialist reports for wastewater engineering and the environment, as well as documentation for court proceedings, insurance claims and cost clarification.
Construction management
Control, supervision and organisation of construction projects; tendering, quotation management, award, contractual matters, construction execution, documentation, handover and warranty management.
Trust & reputation

ranQ Trust Score of Kuster + Hager AG Frauenfeld: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Kuster + Hager AG Frauenfeld scores 49.8 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.68.224%
  • 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.17.610%
  • 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%
Kuster + Hager AG Frauenfeld scores 92.3 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%
Kuster + Hager AG Frauenfeld scores 85.0 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).85.022%
Kuster + Hager AG Frauenfeld scores 62.9 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 35.62.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Kuster + Hager AG Frauenfeld reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Talackerstrasse 34
8500 Frauenfeld

At a glance

Legal form
Corporation
UID
CHE-105.774.233
Founded
1988 · 38 years
Last commercial register change
June 7, 2024
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.70.03%
    • Full methodology

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