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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding CompaniesEgnachHotwork Holding AG
Hotwork Holding AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Hotwork Holding AG develops and provides combustion and melting technologies, equipment and services for the glass, aluminium, copper and other industrial sectors, including furnace heat‑up, furnace draining, oxy‑fuel and hydrogen burners, electric boosting and CO₂ reduction solutions.

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Offering

Products & services

Industry:Holding Companies
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Hotwork Holding AG

CO₂ reduction technologies
CO₂ reduction technologies to optimise industrial combustion processes, reduce fuel consumption, CO₂ and NOx emissions, and extend furnace and refractory linings.
Glass
Services for glass melting furnaces: reheating and cooling, furnace emptying and cullet charging, cleaning of thermal regenerators, hot repairs as well as combustion and electric boosting solutions.
Aluminium and Alumina
Solutions for aluminium and alumina processing with furnace services, thermal management and process support to increase efficiency, reduce downtime and ensure stable production runs.
Copper
Specialised high-temperature solutions and process technologies for the copper industry to support smelting, converting, refining and maintenance.
Boiler
Drying and heat-treatment solutions for boiler systems, including CFB boilers and heat-recovery steam generators, to secure refractory linings and extend plant service life.
Cement & Minerals
Drying services for refractory linings in cement plants, as well as electrical and thermal drying solutions to support durability and plant performance.
Hydrocarbon / Chemical
Refractory dry-out, post-weld heat treatment and component heating or drying for hydrocarbon, chemical and refinery facilities.
Incinerator
Dry-out solutions for refractory linings in incineration plants with special burner systems for temperature control, reducing downtime and improving process efficiency.
Nonferrous Metals
Refractory dry-out and heat-up services for the refining of non-ferrous metals such as zinc, lead and titanium to support furnace performance and energy efficiency.
Steel
Technologies and technical services for steelworks to improve heating-up, drying, furnace efficiency, process stability and plant service life.
Refractory
Solutions for manufacturers and installers of refractory materials in industrial plants, including application-specific support for performance and service life.
Trust & reputation

ranQ Trust Score of Hotwork Holding AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Hotwork Holding 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 Holding AG scores 83.5 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.95.212%
  • 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%
Hotwork Holding 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 Holding 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 Holding AG reaches a ranQ Trust Score of 4.0 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-364.284.511
Founded
2013 · 13 years
Last commercial register change
March 14, 2025
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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