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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil EngineeringJonaHagedorn AG
Hagedorn AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Hagedorn AG is a construction company providing road and civil engineering works and related services. Offerings include asphalt paving, mastic asphalt and waterproofing, transport and crane services, recycling of construction materials, milling and core drilling, and winter road services; the company holds ISO 9001, ISO 14001 and ISO 45001 certifications.

AI-generated
Offering

Products & services

Industry:Civil Engineering
✓ Offered3
Road and civil engineering
Asphalt surfacing, asphalt installation and construction work in road and civil engineering; execution of forecourt to motorway projects with a modern fleet of machinery and equipment.
Services
Cast asphalt and waterproofing, bituminous finishes, transport, crane services, road cleaning, feeders, suction excavators, hot-air dryers, site taxi, manhole covers, trench patching, asphalt milling, core drilling.
Recycled construction materials
Recycled gravel and recycled concrete from pre-sorted construction waste; crushing, sorting, grading and reusing concrete and mixed demolition material for road and civil engineering as well as concrete production.
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4.3/5

Hagedorn AG

Trust & reputation

ranQ Trust Score of Hagedorn AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 100% · As of October 2026

Hagedorn AG scores 75.0 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.68.910%
  • 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.95.08%
Hagedorn AG scores 89.1 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.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.90.07%
Hagedorn AG 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%
Hagedorn AG scores 44.1 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 35.71.44%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.16.74%
Qualifications+0.00

Hagedorn AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 14 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.5
of 5

Aggregated from 14 reviews across all connected sources

Sources
GGoogle4.514
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

December 22, 2025Media
Sanierung Zürcherstrasse: Spatenstich markiert Baustart
nau.ch

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Comparisons

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Location

Fluhstrasse 20a
8645 Jona
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-400.512.087
Founded
1976 · 50 years
Last commercial register change
November 21, 2019
Employees
51 to 100
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.
76.0
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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