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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringZugOtto Bachmann AG, Ingenieurbüro für Heizung-Lüftung-Sanitär
Otto Bachmann AG, Ingenieurbüro für Heizung-Lüftung-Sanitär Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Otto Bachmann AG is planning and consulting in the field of building services engineering, particularly in the areas of heating, ventilation, air conditioning and plumbing. The company provides engineering services for the planning and implementation of building technology projects.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
✓ Offered6
HVAC-S planning
Planning according to SIA for heating, ventilation, air conditioning and sanitary services; preliminary design, plant design, detailed engineering, coordination, technical site supervision, as well as invoicing and revision documents.
Heating system planning
Planning of heating systems for new builds and conversions as well as renovations; sizing of heat generators, heating surfaces, controls, tendering, execution drawings, site supervision and acceptance.
Ventilation and air-conditioning planning
Planning of ventilation and air-conditioning systems for new builds and conversions as well as renovations; sizing of air volumes and components, tendering, fire protection concepts, site supervision and acceptance.
Sanitary installation planning
Planning of sanitary installations for new builds and conversions as well as renovations; sizing of cold- and hot-water supply, rainwater drainage from roofs and foul-water installations, tendering, site supervision and acceptance.
Energy consulting
Component calculations, documentation of measures and system consulting, as well as analyses, concepts, feasibility studies, cost-effectiveness calculations and measurements of heating costs, temperature and humidity.
Grant application and documentation management
Clarification and processing of grant applications as well as submission of applications, documentation and requests to the municipality, canton and federal level, including the energy certificate and the Minergie application.
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4.1/5

Otto Bachmann AG, Ingenieurbüro für Heizung-Lüftung-Sanitär

Trust & reputation

ranQ Trust Score of Otto Bachmann AG, Ingenieurbüro für Heizung-Lüftung-Sanitär: 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.

Otto Bachmann AG, Ingenieurbüro für Heizung-Lüftung-Sanitär 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%
Otto Bachmann AG, Ingenieurbüro für Heizung-Lüftung-Sanitär scores 89.3 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.70.07%
Otto Bachmann AG, Ingenieurbüro für Heizung-Lüftung-Sanitär 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%
Otto Bachmann AG, Ingenieurbüro für Heizung-Lüftung-Sanitär scores 0.6 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 35.0.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Otto Bachmann AG, Ingenieurbüro für Heizung-Lüftung-Sanitär 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

Guthirthof 5
6300 Zug

At a glance

Legal form
Corporation
UID
CHE-106.916.642
Founded
1976 · 50 years
Last commercial register change
December 24, 2020
Employees
11 to 20
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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