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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTesting & Inspection CentersZurichSTD Seibold GmbH & Co. KG, Leonberg (DE), Zweigniederlassung Zürich
STD Seibold GmbH & Co. KG, Leonberg (DE), Zweigniederlassung Zürich Logo
Verified· 2 sourcesTrust Score
Summary

About the company

STD Seibold GmbH & Co. KG, Leonberg (DE), Zweigniederlassung Zürich inspects liquefied gas tanks, large liquefied gas installations and pressure vessels, as well as chemical and water-regulated installations. The company also offers preparation for inspections, pipeline checks, and repair and replacement services related to these systems.

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Products & services

Industry:Testing & Inspection Centers
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STD Seibold GmbH & Co. KG, Leonberg (DE), Zweigniederlassung Zürich

9
LPG tank inspection
Inspection of underground, semi-above-ground and above-ground LPG tanks; internal and external inspections, pipeline inspection as well as repair and replacement.
Inspection preparation for LPG bulk installations
Inspection preparation for LPG bulk installations up to 100,000 litres, including scheduling coordination and provision of an approved monitoring body.
Pressure vessel inspection
Internal inspection and strength testing of pressure vessels using an endoscope, water filling, and checking or replacing safety valves.
Inspection of chemical and water-law facilities
Inspection of storage tanks for heating oil, diesel and chemicals, leak-proof surface testing as well as inspections of light liquid separators under the Water Resources Act and VAwS.
Inspections related to accident prevention regulations
Inspection of hoists, gates, industrial trucks, loading ramps and lifting platforms in connection with accident prevention regulations.
Recording process-engineering plants in databases
Recording process-engineering plants in databases as an additional technical service.
Creation of emergency response plans
Preparation of emergency response plans for facilities and technical installations.
Expert reports
Preparation of expert reports in the areas of water protection and gas installations.
Permit planning for permit-required facilities
Permit planning for permit-required facilities in the technical and water-law context.
Trust & reputation

ranQ Trust Score of STD Seibold GmbH & Co. KG, Leonberg (DE), Zweigniederlassung Zürich: 3.4 out of 5.0

Trust Score3.4/ 5.0

Solid

x

Data basis 54% · As of October 2026

STD Seibold GmbH & Co. KG, Leonberg (DE), Zweigniederlassung Zürich 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.
x
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%
STD Seibold GmbH & Co. KG, Leonberg (DE), Zweigniederlassung Zürich scores 36.9 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.0.012%
  • 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%
STD Seibold GmbH & Co. KG, Leonberg (DE), Zweigniederlassung Zürich 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%
STD Seibold GmbH & Co. KG, Leonberg (DE), Zweigniederlassung Zürich scores 14.3 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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

STD Seibold GmbH & Co. KG, Leonberg (DE), Zweigniederlassung Zürich reaches a ranQ Trust Score of 3.4 out of 5.0 — rated «Solid». 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

Kalkbreitestrasse 138
8003 Zurich

At a glance

Legal form
Foreign branch
UID
CHE-225.045.847
Founded
2026 · 0 years
Last commercial register change
March 16, 2026
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.73.06%
  • 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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