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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryAssociations & Interest GroupsNGOs & NPOsZurichFürsorgestiftung der Maerz-Ofenbau AG, Zürich
Fürsorgestiftung der Maerz-Ofenbau AG, Zürich Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Fürsorgestiftung der Maerz-Ofenbau AG, Zürich is a foundation associated with Maerz Ofenbau. The website describes the company behind it as a provider of planning, development and construction of lime kilns and hydration plants for the lime industry, supplemented by engineering, project management and service.

AI-generated
Offering

Products & services

Industry:NGOs & NPOs
✓ Offered5
Planning, development and construction of lime kilns and hydrate plants
Planning, development and construction of kilns and hydrate plants for the lime industry; support for the construction of new lime plant facilities and for the modernisation of existing facilities.
Engineering and project execution
Advisory, engineering and project management from the first layout draft to commissioning; including design, plant engineering, purchasing and logistics.
Service and spare parts
Technical support, conversions, modernisations, construction and commissioning, audits, training and delivery of spare parts for plants.
Laboratory analyses
Laboratory analyses for raw materials, solid fuels, filter dust and lime hydrate for process assessment and plant optimisation.
Lime kilns
Lime kilns for the lime industry, including GGR kilns, HPS kilns and Maerz EcoKilns, with options for different applications.
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4.2/5

Fürsorgestiftung der Maerz-Ofenbau AG, Zürich

Trust & reputation

ranQ Trust Score of Fürsorgestiftung der Maerz-Ofenbau AG, Zürich: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Fürsorgestiftung der Maerz-Ofenbau AG, Zürich scores 67.0 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.65.024%
  • 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.49.510%
  • 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%
Fürsorgestiftung der Maerz-Ofenbau AG, Zürich scores 84.9 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%
Fürsorgestiftung der Maerz-Ofenbau AG, Zürich scores 85.0 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).85.022%
Fürsorgestiftung der Maerz-Ofenbau AG, Zürich scores 77.1 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 35.77.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Fürsorgestiftung der Maerz-Ofenbau AG, Zürich reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.3 out of 5 stars from 6 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
4.3
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle4.36
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Richard-Wagner-Strasse 28
8002 Zurich
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
Foundation
UID
CHE-109.360.988
Founded
1956 · 70 years
Last commercial register change
March 27, 2026
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.97.06%
  • 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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