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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionErsigenOFB AG
OFB AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

OFB AG is a window and door manufacturer and carpentry firm that supplies and installs windows, sliding and balcony doors, and entrance doors. Services include repair and glazing work, insect screens, pet flaps, locking systems and interior fittings.

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Offering

Products & services

Industry:Interior Construction
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4.5/5

OFB AG

✓ Offered
4
Windows
Sale of windows and professional installation of EgoKiefer window systems made of plastic, plastic/aluminium, wood/aluminium and wood; also with special fittings and different design variants.
Entrance doors
Sale of entrance doors and professional installation of EgoKiefer entrance doors made of wood, wood/aluminium, plastic, plastic/aluminium and aluminium; with design, Classic and Exclusive versions.
Sliding and balcony doors
Sale of sliding and balcony doors and professional installation of EgoKiefer models, including parallel sliding doors, barrier-free solutions, safety glass and individual add-on equipment.
General joinery work
General joinery work and service: repairs after break-ins, service work, glazing work, cat flaps, insect screens, locking systems, interior fit-outs, window sills and flooring.
Trust & reputation

ranQ Trust Score of OFB AG: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

OFB AG scores 87.5 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.88.724%
  • 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.78.610%
  • 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.95.08%
OFB 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%
OFB 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%
OFB AG scores 51.4 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 35.51.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

OFB AG 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 21 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 21 reviews across all connected sources

Sources
GGoogle521
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Gewerbestrasse 5
3423 Ersigen

At a glance

Legal form
Corporation
UID
CHE-115.385.040
Founded
2010 · 16 years
Last commercial register change
March 20, 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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