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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsAarauHKG Engineering AG
HKG Engineering AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

HKG Engineering AG is an engineering and consultancy firm for building services and electrical engineering, providing overall electrical planning and specialist services in electroengineering, building automation, building IT, security, consulting, energy and digitalization. The company works interdisciplinary and is ISO 9001 certified.

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Products & services

Industry:Architecture Firms
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HKG Engineering AG

Overall planning
Electrical engineering, building automation, security, communications, multimedia and building IT from a single source; coordinates design and execution and relieves clients technically and administratively.
Electrical engineering
Design of power, low-voltage, lighting and ICT systems; analyses of existing conditions, expert reports, network simulations, safety power supply, tender support, specialist construction management and integrated tests.
Building automation
Engineering services for building automation from the field to the management level; interfaces with higher-level systems, as-is surveys, replacement of existing systems and RWA controls.
Building IT
Network design, IT security, AV technology planning, design of control rooms and security control centres, project and interface management, commissioning, operations, maintenance and operational optimisation.
Security
Security analyses, as-is surveys, comprehensive security concepts, security command systems, access monitoring, door management, intrusion and video surveillance systems, as well as door specialist design.
Consulting
Client advisory, quality assurance, expert reports, integrated tests and energy-economics analyses; including project controlling, financial controlling and support for reviews and audits.
Energy
Energy concepts for buildings, districts and areas; strategic advice for building services engineering HLKSE, photovoltaics and energy storage, ZEV, e-mobility, as well as energy consulting and operational optimisation.
Digitalisation
VDC/BIM consulting, digitalisation strategies, advisory on digital tools, processes and methods, digital planning and construction processes, digital transformation as well as building IT.
Trust & reputation

ranQ Trust Score of HKG Engineering 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.

HKG Engineering 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.
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%
HKG Engineering AG scores 95.0 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%
HKG Engineering 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%
HKG Engineering AG scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

HKG Engineering 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

Mühlemattstrasse 16
5000 Aarau
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.905.707
Founded
1978 · 48 years
Last commercial register change
April 30, 2026
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.95.03%
    • Full methodology

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