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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringBachenbülachSI7 GmbH
SI7 GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of SI7 GmbH is the provision of specialized technical support and engineering services in the fields of electrical engineering, building automation, and fire protection. This includes, in particular: engineering and planning of projects, owner consulting, technical documentation and creation of necessary documents such as plans, principle and schematic drawings, functional and performance descriptions, calculations and revision documents, as well as execution planning and development of concepts. The company offers these services as an independent partner for customers in the electrical and building automation industries.

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Products & services

Industry:Technical Consulting & Engineering
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3.9/5

SI7 GmbH

✓ Offered4
Electrical planning
Comprehensive electrical concepts for residential, commercial and industrial buildings, BIM-based planning, power supply, strong- and weak-current systems, lighting, security and communication systems.
Building automation
Planning of BMS/HVAC control systems, building management systems, room automation, interface management, energy optimisation, load management, documentation as well as commissioning and acceptance support.
Fire protection
Fire protection concepts according to VKF, fire protection planning for new and existing buildings, escape and rescue route planning, proofs and documentation, coordination with authorities as well as quality assurance and acceptance procedures.
HVACS planning
Planning of heating, ventilation, cooling and sanitary systems, energy-optimised overall systems as well as drainage and wastewater systems.
Trust & reputation

ranQ Trust Score of SI7 GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

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Data basis 54% · As of October 2026

SI7 GmbH 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%
SI7 GmbH scores 65.0 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.58.012%
  • 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%
SI7 GmbH 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%
SI7 GmbH scores 25.7 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

SI7 GmbH reaches a ranQ Trust Score of 3.9 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

Kasernenstrasse 4b
8184 Bachenbülach

At a glance

Legal form
Limited Liability Company
UID
CHE-252.435.665
Founded
2022 · 4 years
Last commercial register change
March 20, 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.
88.0
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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