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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryMetal IndustryBurgdorfHärterei Blessing AG
Härterei Blessing AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Härterei Blessing AG is the heat treatment and surface refinement of metals, particularly through processes such as hardening, case hardening, annealing, nitriding, chemical surface treatment and mechanical surface treatment.

AI-generated
Offering

Products & services

Industry:Metal Industry
✓ Offered5
Steel heat treatment
Through-hardening, quenching and tempering, case hardening, carbonitriding, protective gas hardening and vacuum hardening for steel parts; surface and through-hardening processes matched to material and component requirements.
Annealing of metal materials
Solution annealing, normalising, recrystallisation annealing, stress-relief annealing and soft annealing to adjust microstructure, internal stresses and formability.
Metal surface treatment
Chemical surface treatment with black oxide, zinc phosphating, manganese phosphating, passivation and pickling, plus mechanical surface treatment with glass bead blasting and fine grit blasting.
InoxDur® nitrogen plasma diffusion
Surface hardening of austenitic stainless steels by nitrogen plasma diffusion without losing corrosion resistance; for defined material groups and component sizes.
Testing and analysis services
Hardness testing according to Brinell, Rockwell, Super Rockwell and Vickers, magnetic particle crack testing, spectral analysis, field-strength measurement and demagnetising.
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4.2/5

Härterei Blessing AG

Trust & reputation

ranQ Trust Score of Härterei Blessing AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Härterei Blessing AG scores 65.8 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.67.124%
  • 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.78.08%
Härterei Blessing 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%
Härterei Blessing AG scores 83.3 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).83.322%
Härterei Blessing AG scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Härterei Blessing AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.4 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
4.4
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.47
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Buchmattstrasse 112
3400 Burgdorf
Opening hours
Mon
08:00 - 12:00, 13:00 - 16:00
Tue
08:00 - 12:00, 13:00 - 16:00
Wed
08:00 - 12:00, 13:00 - 16:00
Thu
08:00 - 12:00, 13:00 - 16:00
Fri
08:00 - 12:00, 13:00 - 15:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.725.996
Founded
2001 · 25 years
Last commercial register change
February 2, 2024
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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