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

About the company

HEFTI. HESS. MARTIGNONI. Bern AG is a company within the HHM Gruppe providing building services planning (HLKSE+) and electrical engineering. Its services include energy supply, lighting concepts, building automation, fire protection planning and overall coordination/BIM.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
✓ Offered12
Overall building services planning (HLKSE+)
Overall building services planning for building and infrastructure projects, including coordination of the HLKSE trades and adjacent building technology topics.
HVAC and Sanitary Engineering
HVAC and sanitary engineering for building and infrastructure projects, with planning for heating, air conditioning, ventilation and plumbing.
Electrical Engineering
Electrical engineering for building and infrastructure projects, including planning of technical electrical systems and cable systems.
Building Automation
Building automation for building services systems, aligned with design, operation and integration into overall projects.
Overall Coordination and BIM
Overall coordination and BIM support for the coordinated planning of building services and infrastructure projects.
Sustainability Consulting in Projects
Support for implementing sustainability goals in projects, including the integration of sustainability aspects into processes and deliverables.
Energy Supply
Planning of energy supply solutions in the context of building services and infrastructure.
Photovoltaics
Photovoltaic specialist planning for buildings and installations, including in combination with other building services solutions.
E-mobility
Planning of e-mobility solutions in the building services environment, as part of integrated energy and infrastructure concepts.
Lighting Design and Light Pollution
Lighting design with consideration of light pollution for buildings, installations and public spaces.
Security and Door Engineering
Security and door engineering for buildings, focusing on technical planning and integration into overall projects.
Fire Protection
Fire protection planning for building and infrastructure projects, including project-specific fire protection solutions and implementations.
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4.1/5

HEFTI. HESS. MARTIGNONI. Bern AG

Trust & reputation

ranQ Trust Score of HEFTI. HESS. MARTIGNONI. Bern 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.

HEFTI. HESS. MARTIGNONI. Bern 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%
HEFTI. HESS. MARTIGNONI. Bern AG scores 95.8 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.96.07%
HEFTI. HESS. MARTIGNONI. Bern 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%
HEFTI. HESS. MARTIGNONI. Bern AG scores 91.4 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 35.91.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

HEFTI. HESS. MARTIGNONI. Bern 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

Zieglerstrasse 29
3007 Bern
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-113.710.554
Founded
2007 · 19 years
Last commercial register change
July 28, 2026
Employees
101 to 500
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.100.06%
  • 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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