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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding CompaniesGossau SgBlumer-Lehmann Holding AG
Blumer-Lehmann Holding AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Blumer-Lehmann Holding AG is a company in the timber industry and timber construction that supplies wood products as well as construction and plant solutions. Its services include architecture and planning, manufacturing and installation of timber elements and modules, silo and plant construction for winter road services, residual wood products such as pellets, and conveying, control and measurement technology.

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Offering

Products & services

Industry:Holding Companies
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4.5/5

Blumer-Lehmann Holding AG

✓ Offered2
Deliver timber construction projects
Timber structures, modular construction, free-form structures, conversions, storey additions and renovations; consulting, planning, production, installation and project management as a general contractor or full-service company.
Buy wood products
Sawn timber, glulam, duo beams, CLT, residual wood products, pellets, wood silos, spreading silos and the associated technology for conveying, controlling, weighing and measuring.
Trust & reputation

ranQ Trust Score of Blumer-Lehmann Holding AG: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 92% · As of October 2026

Blumer-Lehmann Holding AG scores 78.6 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.80.724%
  • 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.73.510%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Blumer-Lehmann Holding AG scores 92.3 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.82.07%
Blumer-Lehmann Holding AG scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Blumer-Lehmann Holding AG scores 75.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.50.04%
Qualifications+0.00

Blumer-Lehmann Holding AG reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.8 out of 5 stars from 17 customer reviews. The data basis is 92%, 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
4.8
of 5

Aggregated from 17 reviews across all connected sources

Sources
GGoogle4.817
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

March 26, 2026Media
Blumer Lehmann holt «Award Bildung Holz»
leaderdigital.ch
March 25, 2026Media
Blumer Lehmann gewinnt den Award Bildung Holz der Berner Fachhochschule
businessclassost.ch
August 18, 2025Media
Frutiger übernimmt Holzbaufirma Blumer Lehmann
baublatt.ch
April 2, 2025Media
Blumer Lehmann feiert 150 Jahre und die Zukunft
leaderdigital.ch
June 2, 2023Media
«Mut machen und Neues fördern»
leaderdigital.ch

Knowledge

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Location

Hier entsteht die Karte
Erlenhof
9200 Gossau Sg
Opening hours
Mon
07:30 - 12:00, 13:15 - 17:00
Tue
07:30 - 12:00, 13:15 - 17:00
Wed
07:30 - 12:00, 13:15 - 17:00
Thu
07:30 - 12:00, 13:15 - 17:00
Fri
07:30 - 12:00, 13:15 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.114.003
Founded
1999 · 27 years
Last commercial register change
July 20, 2026
Employees
21 to 50
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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