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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryIndustryGlass, Ceramics, Stone & Construction Materials IndustryAttinghausenHartsteinwerk Gasperini AG
Hartsteinwerk Gasperini AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Hartsteinwerk Gasperini AG is the extraction and processing of hard rock, in particular Altdorf quartz sandstone, as well as the production of building materials such as aggregate, chippings, crushed sand, armour stone and special sands. The company operates a quarry in Attinghausen and also offers logistics and delivery services for its products.

AI-generated
Offering

Products & services

Industry:Glass, Ceramics, Stone & Construction Materials Industry
✓ Offered9
Hard Rock Quarrying
Extraction of Altdorf quartz sandstone in the quarry in Attinghausen; sustainable production of around 250,000 tonnes of hard rock per year for building materials.
Railway Ballast
Railway ballast made from Altdorf quartz sandstone; certified and presented as an important contribution to securing raw materials for the rail and infrastructure sector.
Aggregates for Asphalt and Surface Treatments
Aggregates made from quartz sandstone for asphalt as well as for surface treatments on roads, airports and other traffic areas; certified and accompanied by a declaration of conformity.
Hard Rock Chippings
Hard rock chippings made from Altdorf quartz sandstone for construction and traffic areas; part of the certified product portfolio and of the national supply of raw materials.
Crushed Sand
Crushed sand made from hard rock for building material applications; part of the processed products produced from quarry material.
Road Subbase and Planie Subbase
Road subbase 0/16 mm and planie subbase 0/32 mm for forest and agricultural paths, parking lots and other natural surfacing; with high load-bearing capacity.
Materials for Water-Bound Wearing Courses
Koffer materials for water-bound wearing courses as well as other building materials such as impact sand, reject sand, pervious gravel and fine sand.
Special Sands to Customer Specification
Special sands to customer specification thanks to specialized production facilities; in addition to fine and coarse aggregates as well as hard rock chippings.
Building Materials Logistics and Delivery
On-time, accurate and cost-effective delivery of products to the construction site; integrated into KIBAG’s logistics system, including Big Bag deliveries.
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4.2/5

Hartsteinwerk Gasperini AG

Trust & reputation

ranQ Trust Score of Hartsteinwerk Gasperini AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of October 2026

Hartsteinwerk Gasperini AG scores 73.2 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.72.124%
  • 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.58.610%
  • 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.95.08%
Hartsteinwerk Gasperini AG 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%
Hartsteinwerk Gasperini AG scores 86.7 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).86.722%
Hartsteinwerk Gasperini AG scores 17.2 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 35.34.34%
  • 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

Hartsteinwerk Gasperini AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 9 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.6
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle4.69
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

September 8, 2022Media
Zwischen Risiko- und Traumberuf: So sieht der Arbeitsalltag an einer 300 Meter hohen Felswand aus
bote.ch

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Location

Steinbruchstrasse 1
6468 Attinghausen
Opening hours
Mon
07:15 - 12:00, 13:15 - 17:00
Tue
07:15 - 12:00, 13:15 - 17:00
Wed
07:15 - 12:00, 13:15 - 17:00
Thu
07:15 - 12:00, 13:15 - 17:00
Fri
07:15 - 12:00, 13:15 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-110.316.273
Founded
2003 · 23 years
Last commercial register change
August 6, 2025
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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