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

About the company

Carl Heusser AG supplies and supports pumps and pumping systems for water supply, wastewater, mobile water transport and water treatment, and provides consulting, engineering, rental, maintenance and repair services.

AI-generated
Offering

Products & services

Industry:Holding Companies
✓ Offered7
Water treatment for drinking water and wastewater
Water treatment using ozone, UV, filtration, flotation and aeration technology for municipal drinking water, municipal wastewater and industrial applications.
Consulting and sales for building services
Consulting and sales for building services applications with a personal contact person, a contact form and an assigned sales/advisory area.
Consulting and sales for construction
Consulting and sales for construction applications with a personal contact person, a way to get in touch and a dedicated information page in the sales area.
Consulting and sales for municipal wastewater and industry
Consulting and sales for municipal wastewater and industry with regional contact persons for Switzerland and Liechtenstein.
Service
Planning services, installations, training, on-site fault service, repairs in the workshop, spare-parts supply, as well as on-call and emergency service.
Repair
Installations, commissioning, workshop work for professional service and repair work, 24-hour on-call service and packaged maintenance services.
Rental
Rental equipment for drainage, pumping diversion measures and mixing processes, including a nationwide rental fleet in Switzerland, instruction at handover and fixed, pre-calculable prices.
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4.2/5

Carl Heusser AG

Trust & reputation

ranQ Trust Score of Carl Heusser AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Carl Heusser AG scores 66.3 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.77.424%
  • 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.52.910%
  • 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%
Carl Heusser AG scores 85.5 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.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%
Carl Heusser 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%
Carl Heusser AG scores 62.9 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 35.62.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Carl Heusser AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.9 out of 5 stars from 7 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
4.9
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.97
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Alte Steinhauserstrasse 23
6330 Cham
Opening hours
Mon
07:00 - 11:45, 13:00 - 17:00
Tue
07:00 - 11:45, 13:00 - 17:00
Wed
07:00 - 11:45, 13:00 - 17:00
Thu
07:00 - 11:45, 13:00 - 17:00
Fri
07:00 - 11:45, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.918.756
Founded
1965 · 61 years
Last commercial register change
December 8, 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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