ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Partner program
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesBaselCertus Bau GmbH
Certus Bau GmbH Logo
Verified· 2 sourcesTrust Score4.1/5

Certus Bau GmbH

Summary

About the company

The company aims to plan, execute, maintain and service heating, ventilation, cooling and air conditioning systems. Furthermore, the company aims to provide FM mandates in the field of cleaning and offer all construction services. The company can establish branches and subsidiaries in Switzerland and abroad, participate in other companies in Switzerland and abroad, and conduct all business that is directly or indirectly related to its purpose. The company can acquire, sell, manage and encumber real estate in Switzerland and abroad.

Commercial register, canton of BS·As of December 6, 2023View on Zefix
Trust & reputation

ranQ Trust Score of Certus Bau GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Certus Bau 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.
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%
Certus Bau GmbH scores 83.0 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.55.07%
Certus Bau GmbH scores 80.0 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).80.022%
Certus Bau GmbH scores 0.3 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 35.0.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Certus Bau GmbH 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. Full methodology

Knowledge

No knowledge articles yet

Once Certus Bau GmbH has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Certus Bau GmbH in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Certus Bau GmbH by reviews, experience and specialisations.

Is this your company?

Claim the company profile of Certus Bau GmbH to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Elisabethenanlage 25
4051 Basel

At a glance

Legal form
Limited Liability Company
UID
CHE-114.835.158
Founded
2009 · 17 years
Last commercial register change
December 6, 2023
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%

    • Similar companies

    LT
    Lasso Technik AG
    Basel
    RH
    Rosenmund Haustechnik AG
    Basel
    LA
    Lippuner AG Gebäudetechnik
    Riehen
    BU
    Bau und Tech GmbH
    Basel
    RM
    R. Messmer GmbH
    Riehen
    QG
    Qerotech GmbH
    Basel
    CS
    CP Sanitär GmbH
    Basel
    SA
    Sanitär Ari AG
    Basel