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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryRetail & CommerceArt & Antique TradeGenevaNUMISMATICA GENEVENSIS SA
NUMISMATICA GENEVENSIS SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Numismatica Genevensis SA (NGSA) is the organization of auctions and the trade of numismatic objects, particularly rare coins and medals. The company also provides appraisal and consulting services for collectors and institutions.

AI-generated
Offering

Products & services

Industry:Art & Antique Trade
✓ Offered5
Coin auctions
Auctions for collector coins, ancient coins, Greek, Roman, Byzantine, Celtic, Islamic and Swiss coins, as well as medals.
Advice for buying and selling coins
Advice by numismatists for buying and selling coins, as well as support in building and maintaining collections.
Expertise and appraisal of coins and medals
Appraisals and expert assessments for coins and medals, as a basis for consignments, collection valuations and other numismatic matters.
E-shop for coins
Online offering with collector coins and numismatic unique pieces from ancient, Greek, Celtic, Roman and modern categories.
Exhibitions and numismatic presentations
Organisation of numismatic exhibitions and presentations, including Coins of Islam and Minted Narratives.
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4.5/5

NUMISMATICA GENEVENSIS SA

Trust & reputation

ranQ Trust Score of NUMISMATICA GENEVENSIS SA: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

NUMISMATICA GENEVENSIS SA scores 86.5 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.87.924%
  • 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.76.210%
  • 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.95.08%
NUMISMATICA GENEVENSIS SA scores 89.3 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.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.70.07%
NUMISMATICA GENEVENSIS SA 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%
NUMISMATICA GENEVENSIS SA scores 82.9 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 35.82.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

NUMISMATICA GENEVENSIS SA reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 5.0 out of 5 stars from 19 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
5
of 5

Aggregated from 19 reviews across all connected sources

Sources
GGoogle519
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rue François-Bellot 4
1206 Geneva
Opening hours
Mon
09:00 - 18:00
Tue
09:00 - 18:00
Wed
09:00 - 18:00
Thu
09:00 - 18:00
Fri
09:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.728.085
Founded
2001 · 25 years
Last commercial register change
June 19, 2025
Employees
11 to 20
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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