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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsSissachIngenieurbüro Blattner AG
Ingenieurbüro Blattner AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Blattner AG is an engineering firm specializing in civil and structural engineering. The core activities include planning, design and execution of construction projects in the field of civil engineering (residential and commercial buildings, industrial and commercial construction) as well as civil engineering (road and bridge construction, sewerage works).

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Products & services

Industry:Civil Engineering FirmsConstruction & Project Management
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4.1/5

Ingenieurbüro Blattner AG

✓ Offered3
Structural Design for Building Construction
Structural design for new builds, conversions and renovations; load-bearing structures for single-family homes, residential and commercial buildings, and industrial and commercial projects in concrete, steel, timber and composite construction.
Civil Engineering Design
Civil engineering design for foundations, road construction and bridge construction; planning, coordination and dimensioning from preliminary study through sizing to final invoicing.
Construction Expert Reports
Construction expert reports with condition assessments, damage reports, structural checks, plausibility checks, project assessments and crack records.
Trust & reputation

ranQ Trust Score of Ingenieurbüro Blattner AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Ingenieurbüro Blattner AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Ingenieurbüro Blattner AG scores 85.5 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%
Ingenieurbüro Blattner AG scores 83.3 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).83.322%
Ingenieurbüro Blattner AG scores 4.9 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 35.4.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ingenieurbüro Blattner AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Bischofsteinweg 15
4450 Sissach

At a glance

Legal form
Corporation
UID
CHE-107.259.841
Founded
1990 · 36 years
Last commercial register change
September 20, 2019
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.
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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