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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding companyBaselViessmann Holding GmbH
Viessmann Holding GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Viessmann Holding GmbH provides energy and climate solutions for heating, cooling, ventilation and power generation. The company offers products and system solutions for new construction and renovation, as well as services, digital tools and customer support for professional partners and end customers.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Holding company
✓ Offered5
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Viessmann Holding GmbH

Climate solutions
Heat, cool, ventilate and generate electricity with energy and climate solutions for new builds and renovations; including system components, digital services and energy management.
Products
Product catalogue with heat pumps, photovoltaic systems, battery storage, ice energy storage, wood heating systems, ventilation systems, solar thermal, gas and oil heating systems, hybrid heating systems, hot water heaters and accessories.
Customer service
Customer service with 24/7 hotline, maintenance contracts, individual maintenance, commissioning, repair, operating instructions and support for existing systems.
Services and tools
Online tools, downloads, operating instructions, price lists, terms and conditions, information on subsidies, ViGuide App, ViCare App, Viessmann Home and PartnerShop.
Consulting and expert advice
Free and non-binding expert advice, request consultation, request an indicative offer and support in choosing the right heating solution.
Trust & reputation

ranQ Trust Score of Viessmann Holding GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Viessmann Holding GmbH has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Viessmann Holding GmbH scores 83.0 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%
Viessmann Holding GmbH 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%
Viessmann Holding GmbH scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Viessmann Holding GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of November 2026.

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

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Location

St. Jakobs-Strasse 7
4052 Basel

At a glance

Legal form
Limited Liability Company
UID
CHE-100.815.333
Founded
1983 · 43 years
Last commercial register change
February 10, 2025
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • BSBasel
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.
88.0
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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