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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryIndustryMechanical Engineering IndustryZurichMaerz Ofenbau AG
Maerz Ofenbau AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Maerz Ofenbau AG designs and manufactures lime kilns and hydration plants as well as related plant components and spare parts. The company also provides engineering, project management, laboratory analyses and lifecycle service for lime plants.

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Products & services

Industry:Mechanical Engineering Industry
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Maerz Ofenbau AG

✓ Offered4
Lime kilns
Lime kilns for the lime industry, in particular PFR kilns, HPS kilns and Maerz EcoKilns® for different product grades and production capacities.
Engineering and project management
Consulting, engineering and project management for lime firing projects and plants, including planning, design, procurement, logistics, field services and software.
Service and spare parts
Spare parts, revamping and modernization, on-site technical support, commissioning, audits, training and laboratory analyses for existing plants.
Hydrated lime plants
Complete hydrated lime plants for the production of hydrated lime, modular and compact in design with Maerz Hydrator and plant engineering.
Trust & reputation

ranQ Trust Score of Maerz Ofenbau AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of October 2026

Maerz Ofenbau AG 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%
Maerz Ofenbau AG scores 94.3 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.90.07%
Maerz Ofenbau 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%
Maerz Ofenbau AG scores 38.6 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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: 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

Maerz Ofenbau AG 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. 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.

Press

Media

February 23, 2026Media
Maerz Ofenbau AG liefert S2-Einschachtofen für Schweizer Zucker AG
punkt4.info

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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
Corporation
UID
CHE-107.848.233
Founded
1950 · 76 years
Last commercial register change
October 7, 2025
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.
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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