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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryRetail & CommerceArt & Antique TradeLucerneZUSI AG
ZUSI AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of ZUSI AG is the consulting and brokerage of historical stringed instruments as an asset class for investors, collectors and institutions. This includes the evaluation and certification of instruments, support in purchases, private sales and auctions, as well as the development of tailored investment strategies.

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Products & services

Industry:Art & Antique Trade
✓ Offered
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4.1/5

ZUSI AG

5
Advisory on historical string instruments as an asset class
Advisory for family offices, HNWI, foundations and collectors on high-quality historical string instruments as an investment; with market information, transparency and tailored strategies.
Advisory for purchases, private sales & auctions
Expert advice when selecting historical instruments, including access to off-market offerings and top-tier auctions, as well as support for buying and selling decisions.
Building portfolios & collections
Support in assembling balanced collections of historical string instruments, focusing on cultural and financial value as well as long-term diversification.
Support with certificates, historical research and scientific methods
Assessment of authenticity and condition using condition reports, CT scans, dendrochronological analysis, varnish analyses and other scientific methods.
Presentations and talks on string instruments as an investment
Talks and presentations on topics such as «String instruments as an investment» or «The myth of Stradivari» for investors, collectors and institutions.
Trust & reputation

ranQ Trust Score of ZUSI AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

ZUSI AG 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.
x
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%
ZUSI AG scores 78.3 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.83.012%
  • 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%
ZUSI AG scores 83.3 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).83.322%
ZUSI AG scores 4.0 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 35.4.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

ZUSI AG 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 October 2026.

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

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Location

Habsburgerstrasse 12
6003 Lucerne

At a glance

Legal form
Corporation
UID
CHE-221.659.016
Founded
2017 · 9 years
Last commercial register change
December 13, 2024
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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