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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTesting & Inspection CentersWollerauOldtimerberatung Blattner GmbH
Oldtimerberatung Blattner GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Oldtimerberatung Blattner GmbH is consulting and services in the field of classic cars, particularly: Expert appraisals and valuations of classic cars, Purchase and sales consulting for classic cars, Restoration consulting for classic cars, Creation of FIVA Identity Cards (a type of certificate for classic cars), Search orders for classic cars, Expert checks for classic cars. The company thus offers comprehensive consulting and services for classic car owners and enthusiasts.

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Offering

Products & services

Industry:Testing & Inspection Centers
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4.0/5

Oldtimerberatung Blattner GmbH

Automotive & Vehicle Trade
✓ Offered6
Classic car expert report
Classic car expert reports, valuations and condition assessments for purchase, sale, insurance, inheritance and tax assessment; inspection on the vehicle's premises, including an expert check and market value estimate.
Classic car purchase advisory
Advisory for buying classic cars, assessment of the vehicle condition, derivation of a fair purchase price, restoration proposals and support in choosing the right vehicle.
FIVA Identity Card
Preparation of the application and documentation for the FIVA Identity Card, a recognised document to prove originality, authenticity and the vehicle's history.
Classic car search mandate
Search for specific classic cars within the network, including brokering of interesting vehicles that are not publicly listed, as well as descriptions and, on request, an on-site inspection.
Classic car sales advisory
Support with the sale of classic cars, including sales documentation, valuation, viewing appointments, sales negotiations and advice on auctions in Switzerland and abroad.
Classic car restoration advisory
Individual restoration planning for classic cars, second opinion on restoration offers and support in finding suitable specialist workshops.
Trust & reputation

ranQ Trust Score of Oldtimerberatung Blattner GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Oldtimerberatung Blattner GmbH scores 72.7 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.80.624%
  • 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.55.910%
  • 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%
Oldtimerberatung Blattner GmbH scores 70.2 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.70.212%
  • 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%
Oldtimerberatung Blattner 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%
Oldtimerberatung Blattner GmbH scores 5.1 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 35.5.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Oldtimerberatung Blattner GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 8 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 8 reviews across all connected sources

Sources
GGoogle58
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Unterer Erlenweg 6
8832 Wollerau
Opening hours
Mon
Closed
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
08:00 - 12:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-256.938.250
Founded
2020 · 6 years
Last commercial register change
January 27, 2020
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.
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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