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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsBremgarten AgC. Blumenthal GmbH, Montagen
C. Blumenthal GmbH, Montagen Logo
Verified· 3 sourcesTrust Score
Summary

About the company

C. Blumenthal GmbH, Montagen provides products and services for sun and weather protection. The company supplies and installs external blinds and awnings (including venetian/lamella blinds and roller shutters), interior shading and insect screens, and offers repairs, replacements and automation services.

AI-generated
Offering

Products & services

Industry:Specialized Construction Installations
✓ Offered5
External blinds
Sun blinds, louvre blinds and roller shutters for sun and weather protection; also window awnings as well as solutions for installation and suitable shading systems.
Interior shading
Indoor sun protection and blackout systems for rooms with different shading requirements; a wide range of products for interior shading.
Insect protection
Custom insect protection products such as roller blinds and hinged frames for windows and balcony doors; protection against flies, spiders, wasps and other insects.
Automations
Automatic drives and controls for sun and weather protection products; retrofitting existing blinds for operation via push-button or control.
Repair service for blinds
Repairs reported online for defective, jammed or damaged blinds, roller shutters and louvre blinds; also replacement of fabrics, bands and cranks.
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3.9/5

C. Blumenthal GmbH, Montagen

Trust & reputation

ranQ Trust Score of C. Blumenthal GmbH, Montagen: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

C. Blumenthal GmbH, Montagen scores 56.5 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.68.224%
  • 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.17.610%
  • 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%
C. Blumenthal GmbH, Montagen scores 83.0 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.55.07%
C. Blumenthal GmbH, Montagen scores 85.0 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).85.022%
C. Blumenthal GmbH, Montagen scores 14.0 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 35.14.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

C. Blumenthal GmbH, Montagen reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Ringstrasse 19
5620 Bremgarten Ag
Opening hours
Mon
07:30 - 12:00, 13:00 - 18:00
Tue
07:30 - 12:00, 13:00 - 18:00
Wed
07:30 - 12:00, 13:00 - 18:00
Thu
07:30 - 12:00, 13:00 - 18:00
Fri
07:30 - 12:00, 13:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-112.236.745
Founded
2005 · 21 years
Last commercial register change
March 30, 2009
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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