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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryMechanical Engineering IndustryEgnachHotwork International AG
Hotwork International AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Hotwork International AG develops combustion and melting system technologies and provides services and equipment for furnaces in the glass, aluminium, copper and other industrial sectors. Services include furnace heat‑up and draining, refractory dry‑out, CO₂‑reduction technologies (hydrogen and oxy‑fuel burners), electric boosting and related equipment such as water recycling systems.

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Products & services

Industry:Mechanical Engineering Industry
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Hotwork International AG

CO₂ Reduction Technologies
CO₂ reduction technologies, fuel management systems and energy-optimising solutions to minimise carbon footprint and reduce carbon dioxide emissions in industrial operations.
Glass
Tailored products and services for the glass industry, focused on production efficiency, glass quality and support for glass manufacturing processes.
Aluminium and Alumina
Custom-engineered solutions for aluminium smelting, including OptiFlame melting technology for consistent furnace temperature distribution, energy savings and operational efficiency.
Copper
Solutions for copper smelting, including heat-up and dry-out processes and tailored melting technologies for furnace operations.
Boiler Heat-up and Dry-out Services
Dry-out and heat treatment solutions for boiler systems, including CFB boilers, heat recovery steam generators and refractory linings.
Cement and Minerals Dry-out Services
Dry-out services for refractory linings in cement plants, with electrical and thermal drying solutions for reliable performance and plant efficiency.
Chemical Dry-out and Heat Treatment Services
Dry-out services for refractory linings and post weld heat treatment, using portable high-velocity burners for flexible heat distribution.
Hydrocarbon Dry-out, Heat Treatment and Component Heating
Services for hydrocarbon, chemical and refinery sectors, including refractory dry-out, post-weld heat treatment and component heating or drying.
Incinerator Dry-out Services
Dry-out solutions for refractory linings in incinerators, with burner systems designed to maintain optimal temperatures and reduce downtime.
Nonferrous Metals Dry-out and Heat-up Services
Dry-out and heat-up services for nonferrous metal refining, including zinc, lead and titanium furnace applications.
Refractory Solutions
Custom solutions for refractory producers and installers in industrial plants, designed to enhance performance and extend system life.
Specialized Industrial Heat Services
Post weld heat treatment, curing of coatings, process heat solutions and dry-out services for various industrial plants.
Trust & reputation

ranQ Trust Score of Hotwork International AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Hotwork International AG scores 56.6 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.63.324%
  • 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.45.610%
  • 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.50.08%
Hotwork International 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%
Hotwork International 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%
Hotwork International AG 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

Hotwork International AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 out of 5 stars from 5 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
4.2
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.25
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Romanshornerstrasse 123
9322 Egnach
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-111.716.310
Founded
2004 · 22 years
Last commercial register change
March 28, 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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