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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryRetail & CommerceRetail - General Specialty TradeOberkirch LuOrgelbau Graf AG
Orgelbau Graf AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Orgelbau Graf AG Sursee is the manufacture, revision and maintenance of organs, particularly in terms of craftsmanship, technical and tonal quality. This also includes the creation of rental instruments and the organization of organ trips.

AI-generated
Offering

Products & services

Industry:Retail - General Specialty Trade
✓ Offered9
Organ building
New construction of church and home organs, individually planned and built for architectural, acoustic and musical requirements.
Organ maintenance & tuning
Regular care, professional tuning and re-adjustment of the mechanism for consistent, harmonious sound and reliable playability.
Revision & cleaning
Thorough cleaning and revision of pipework and organ components, including adjustment, replacement of wear parts and overall tuning.
Organ reconfiguration
Analysis and optimisation of existing organs, with adaptation of the stoplist and technology to new musical requirements.
High-tech organ upgrades
Modernisation of electrical organ systems with MIDI, Wi-Fi and setzer solutions, as well as maintenance and restoration of electrical components.
Indoor climate consulting
Advice on air humidity, ventilation and protective measures against mould, including solutions for air circulation and temperature monitoring.
Covering & packing organs
Protecting organs during renovations, construction sites or transport using film or wooden enclosures, including inspection and subsequent cleaning.
Chest organ rental
Rental of chest organs as mobile concert and interim instruments, including delivery, on-site tuning and collection.
24/7 emergency service
24/7 emergency service for organ faults, reachable by phone or email, on site or via remote assistance.
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4.3/5

Orgelbau Graf AG

Trust & reputation

ranQ Trust Score of Orgelbau Graf AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Orgelbau Graf AG scores 71.3 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.79.424%
  • 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.70.08%
Orgelbau Graf AG 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%
Orgelbau Graf 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%
Orgelbau Graf AG scores 54.3 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 35.54.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Orgelbau Graf AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 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
5
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle57
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Luzernstrasse 19b
6208 Oberkirch Lu
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.681.746
Founded
1992 · 34 years
Last commercial register change
June 15, 2026
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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