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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryRetail & CommerceRetail - Construction & Raw MaterialsSpiezDietrich Isol AG
Dietrich Isol AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Dietrich Isol AG develops, manufactures and sells insulation and acoustic systems made from cement-bonded wood wool, including multi-layer boards, acoustic panels, screed floor insulation elements and related accessories. The company supplies products for ceilings, walls and floors and provides services such as technical consultancy, logistics, recycling and planning support, and lists certifications including ISO 9001, ISO 14001 and eco ratings for many products.

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Offering

Products & services

Industry:Retail - Construction & Raw Materials
✓ Offered
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4.6/5

Dietrich Isol AG

8
Thermal insulation and acoustic systems made from cement-bonded wood wool
Development, production and distribution of thermal insulation and acoustic systems made from cement-bonded wood wool, including solutions for heat, sound, fire and dripping-water protection.
Consulting
Personal sales, technical and project consulting, with support for planning, detailed design, application engineering, fire protection and follow-up.
Planning support
Digital planning tools with product finder, surface textures for visualisations and architectural project examples for architects and planners.
Logistics services
Delivery coordination to the construction site with scheduled deliveries, unloading by accompanying forklift or crane, and return-pallet system.
Recycling
Recycling system for production and construction-site sections, take-back of UNITEX, UNICEM and UNIAKUSTIK sections, and return to the material cycle.
Training and instructions
Product and application training for installers, trade, associations and vocational schools, plus downloads with laying plans, technical data sheets and system brochures.
Product-related services
Individually configurable boards with special colours, edge sealing, special sizes, cut-to-measure pieces, as well as samples and sample selection.
Insulation boards
Multi-layer boards, acoustic boards, lightweight construction boards, screed floor insulation elements, as well as accessories and fixings for thermal insulation and sound protection.
Trust & reputation

ranQ Trust Score of Dietrich Isol AG: 4.6 out of 5.0

Trust Score4.6/ 5.0

Excellent

x

Data basis 96% · As of October 2026

Dietrich Isol AG scores 88.8 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.81.424%
  • 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.97.410%
  • 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.100.08%
Dietrich Isol 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%
Dietrich Isol 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%
Dietrich Isol AG scores 82.9 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 35.82.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Dietrich Isol AG reaches a ranQ Trust Score of 4.6 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.7 out of 5 stars from 45 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
4.7
of 5

Aggregated from 45 reviews across all connected sources

Sources
GGoogle4.745
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Industriestrasse 16
3700 Spiez

At a glance

Legal form
Corporation
UID
CHE-108.513.172
Founded
1996 · 30 years
Last commercial register change
January 20, 2025
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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