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
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding CompaniesRheinfeldenWillers Holding AG
Willers Holding AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Willers Holding AG is an international engineering firm for high‑tech buildings and infrastructure. It provides planning and engineering services including building services engineering, total design, Digital Building and BIM/BIM2FM, and specialised solutions for life sciences, cleanrooms, data centres, energy hubs and healthcare.

AI-generated
Offering

Products & services

Industry:Holding Companies
✓ Offered7
General planning
General planning for technologically demanding buildings, with overall responsibility across all planning disciplines, integrated coordination of engineering, architecture and operations, as well as feasibility studies.
Building services
Design and control of building services with all trades handled in-house, including heating, ventilation, air conditioning, plumbing, electrical, building automation and consulting.
Digital Building
Digital building solutions for connected building systems, using IoT, cloud and AI applications, Digital Twin, BIM2FM, OT network and cybersecurity concepts.
Consulting
Advisory for clients and operators on energy and building services, including client representation, energy concepts, as well as operation and optimisation over the full life cycle.
Laboratory planning
Laboratory planning for research, analysis and biosafety laboratories, including lab concepts, media supply, safety concepts, building services design and transition into operations.
Cleanroom design
Cleanroom design with room concepts, space planning, building services, BIM models, GMP compliance, qualification, validation, as well as overall site management and specialist construction management.
GMP-/QVC services
GMP services for life sciences with GMP compliance, GMP advisory, qualification and validation of facilities and processes, as well as quality risk management.
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
4.1/5

Willers Holding AG

Trust & reputation

ranQ Trust Score of Willers Holding 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.

Willers Holding 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%
Willers Holding AG scores 84.6 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.97.712%
  • 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%
Willers Holding AG scores 83.3 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).83.322%
Willers Holding AG scores 82.9 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 35.82.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Willers Holding 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.

Knowledge

No knowledge articles yet

Once Willers Holding AG has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Willers Holding AG in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Willers Holding AG by reviews, experience and specialisations.

Is this your company?

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

Secure profile

Location

Quellenstrasse 1
4310 Rheinfelden

At a glance

Legal form
Corporation
UID
CHE-191.198.273
Founded
2012 · 14 years
Last commercial register change
August 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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Similar companies

    B&
    Brügger & Willers Holding AG
    Rheinfelden
    FH
    Frei+Partner Haustechnikplanung Holding AG
    Baden
    HH
    Herbst Holding GmbH
    Frick
    WH
    Wülser Holding AG
    Zofingen
    TW
    The Weir Group International S.A.
    Baden
    AH
    ADD Holding AG
    Kaiseraugst
    NH
    Niggli Holding GmbH
    Sins
    SH
    Soudronic Holding AG
    Bergdietikon