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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryGlass, Ceramics, Stone & Construction Materials IndustryStaad SgRudolf Dudler AG
Rudolf Dudler AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Rudolf Dudler AG is the manufacture and distribution of concrete products, in particular ready-mixed concrete in various qualities, as well as the production of gravel, sand, crushed material and recycled aggregate. The company also offers services such as compressive strength testing, mixer truck and concrete pump rental, as well as technical consulting for material selection.

AI-generated
Offering

Products & services

Industry:Glass, Ceramics, Stone & Construction Materials Industry
✓ Offered9
Ready-mixed concrete
Ready-mixed concrete in various qualities, including watertight concrete, frost-resistant concrete, concrete resistant to de-icing salt, concrete for pumping, concrete for crane placement, cellular lightweight concrete, and lightweight concrete.
Gravel and sand
Delivery of gravel and sand, from fine sand to coarse chippings, including decorative gravel and play sand from the gravel transshipment point Staad.
Recycled construction materials
Processing demolished concrete into recycled sand and gravel, as well as into lean / filter concrete and structural concrete made from recycled mineral aggregate.
Masonry mortar
Manufacture and daily delivery of Presyn masonry mortar to the construction site, available as masonry mortar M15 and M20.
Door frame mortar and render
Manufacture of door frame mortar M20 and render in-house, delivered in mortar buckets to the construction site.
Concrete pumps and truck-mounted pump
Use of truck-mounted pumps as well as concrete pumps with 28 m, 38 m, and 42 m booms for pumping and conveying work on construction sites and in confined conditions.
Transport
Transport of building materials and concrete deliveries, complemented by crane work and pumping work as part of the service.
Compressive strength testing
Compressive strength testing in our own laboratory for concrete and building materials, listed as a laboratory assignment in the offer.
Concrete blocks
Delivery of Dudler concrete blocks as a separate product within the range offered.
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4.3/5

Rudolf Dudler AG

Trust & reputation

ranQ Trust Score of Rudolf Dudler AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 100% · As of October 2026

Rudolf Dudler AG scores 82.7 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.85.624%
  • 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.79.710%
  • 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.78.08%
Rudolf Dudler AG scores 85.5 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.55.07%
Rudolf Dudler AG scores 86.7 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).86.722%
Rudolf Dudler AG scores 8.6 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 35.17.14%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Rudolf Dudler AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.9 out of 5 stars from 22 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.9
of 5

Aggregated from 22 reviews across all connected sources

Sources
GGoogle4.922
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

June 9, 2021Media
Prädestiniert für seinen Einsatz bei Rudolf Dudler
tir-transnews.ch

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Location

Rietlistrasse 1
9422 Staad Sg
Opening hours
Mon
06:30 - 11:45, 12:45 - 17:00
Tue
06:30 - 11:45, 12:45 - 17:00
Wed
06:30 - 11:45, 12:45 - 17:00
Thu
06:30 - 11:45, 12:45 - 17:00
Fri
06:30 - 11:45, 12:45 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.554.085
Founded
1995 · 31 years
Last commercial register change
April 20, 2020
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.
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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