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
DirectoryCrafts & TradesElectrical Planning & InstallationWürenlingenMerki & Haefeli AG
Merki & Haefeli AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Merki + Häfeli AG is the development, manufacture and assembly of control technology, switchgear and electrical systems, including retrofit, conversions and service. The company also offers electrical engineering, housing processing and laser engraving.

AI-generated
Offering

Products & services

Industry:Electrical Planning & InstallationElectrical Industry
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

Merki & Haefeli AG

✓ Offered8
Switchgear
Custom switchgear and switchgear device combinations for power distribution, main distribution systems up to 3000A, water and wastewater systems, industrial installations, tunnels and research facilities.
Control systems
Control systems for prototypes, custom single-unit builds and series production, modular design with PLC control systems for automation and safety functions in industry, power supply and water/wastewater systems.
Retrofit
Overhaul of existing switch cabinet and control systems to extend service life, rectify safety deficiencies and modernise without a complete new investment.
Modifications
Modifications and extensions of existing switchgear to improve performance and safety, and to adapt to new requirements and technologies.
Electrical engineering
Planning of the entire electrical infrastructure, including design, development, implementation and maintenance of electrical systems and installations for buildings, industry and power supply.
Service and Support
Consulting, remote access for electrical equipment, troubleshooting, maintenance contracts, support for control functions, safety documentation, training and conversion or expansion of existing installations.
Enclosure machining
Drilling, thread cutting and milling of switch cabinets and enclosures in our own Perforex machining centre, for one-off custom builds and series production in aluminium, steel, stainless steel, plastic and copper.
Laser engravings
Individual laser labelling of switch cabinets and enclosures, including serial numbers, warning notices and operating instructions on metal or plastic plates.
Trust & reputation

ranQ Trust Score of Merki & Haefeli AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Merki & Haefeli AG scores 61.4 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.76.724%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.45.610%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Merki & Haefeli AG scores 92.3 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.82.07%
Merki & Haefeli 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%
Merki & Haefeli AG scores 54.3 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 35.54.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Merki & Haefeli AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 5 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

No knowledge articles yet

Once Merki & Haefeli AG has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Merki & Haefeli AG in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Merki & Haefeli AG by reviews, experience and specialisations.

Is this your company?

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

Secure profile

Location

Zementweg 3
5303 Würenlingen
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.139.645
Founded
1966 · 60 years
Last commercial register change
March 12, 2021
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.70.03%
    • Full methodology

    Similar companies

    EE
    Eglin Elektro AG Würenlingen
    Würenlingen
    A&
    A. & E. Geissmann AG
    Dottikon
    EA
    Elektro-Bau AG Rothrist
    Rothrist
    SE
    Schmitter Elektro, Zweigniederlassung der Elektro-Bau AG Rothrist
    Rothrist
    BT
    B.A.S.E Tech GmbH
    Zeihen
    EF
    Elektro Flückiger + Frei AG
    Birmenstorf Ag
    EF
    Elektro Flückiger + Frei Oberrohrdorf AG
    Oberrohrdorf
    RE
    R+B engineering ag
    Brugg Ag