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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryShipbuildingAltnauStefan Züst
Stefan Züst Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The company's core activity is the construction, restoration and maintenance of wooden boats, in particular classic yachts and boats made of mahogany.

AI-generated
Offering

Products & services

Industry:Shipbuilding
✓ Offered8
Wood boat restorations
Complete restorations and conversions of wooden sailing yachts, motorboats and rowing boats; maintenance, refits and detail work, if desired with the assistance of the owner.
New construction of wooden boats
Turnkey new builds of wooden boats based on old or new plans, including consultation regarding sailing and motor yachts as well as hull build-out.
Construction of wooden masts
Wooden masts up to 20 metres long, made from solid wood or hollow-laminated stock, in spruce, Douglas pine or other wood types; straight masts and whip masts.
Woodwork on ships
Interior fit-out, new teak deck, as well as repair and service work for owners of steel or GRP vessels and for wooden boats.
Winter storage for wooden boats
Winter storage in a hall or in the outdoor yard; protection and space for boats throughout the cold season, with early registration.
Scrapping, disposal and recycling of sports boats
Environmentally responsible disposal, scrapping and recycling of sports boats and boat parts made of wood, GRP or steel.
Alternative rig concepts
Planning and construction of ship(s) with gaff or lug sail rig, including a standing gaff, fully battened sails and a conventional gaff rig.
Moon-timber for wooden boats
Timber from our own forest for boatbuilding, from winter felling through sawing and drying to processing and installation in the vessel.
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4.0/5

Stefan Züst

Trust & reputation

ranQ Trust Score of Stefan Züst: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 100% · As of October 2026

Stefan Züst scores 63.1 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.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.70.08%
Stefan Züst scores 78.5 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%
Stefan Züst scores 86.7 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).86.722%
Stefan Züst scores 53.4 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 35.80.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.26.74%
Qualifications+0.00

Stefan Züst reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.3 out of 5 stars from 7 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 7 reviews across all connected sources

Sources
GGoogle4.37
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

June 6, 2023Media
Leidenschaft Segeln - Wind, Wetter, Wasser: der Wikinger vom Bodensee
srf.ch
June 3, 2023Media
Der Wikinger vom Bodensee
srf.ch

Knowledge

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Comparisons

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Location

Längimoosstrasse 1
8595 Altnau
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-109.942.647
Founded
2003 · 23 years
Last commercial register change
September 9, 2013
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.
67.0
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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