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 & TradesElectrical Planning & InstallationLiestalWilly Holinger AG Haustechnik
Willy Holinger AG Haustechnik Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Willy Holinger AG Haustechnik is a company active in building services and technical building systems. The website presents a focus on planning and solutions related to water, energy, wastewater, construction and sustainable infrastructure.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
✓ Offered9
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

Willy Holinger AG Haustechnik

Energy
District energy supply, energy storage, heating plants and cooling systems, power stations and special facilities for the decarbonisation of heat, cold, electricity and process energy.
Wastewater
Expansion and new construction of wastewater treatment plants, operating optimisation, elimination of micro-pollutants, sludge recovery, industrial wastewater pre-treatment and nitrogen removal.
Water supply
Construction of facilities and utility pipelines, drinking water treatment, strategic water supply planning, advisory services and operational support, quality assurance and hydraulic calculations.
Construction
Construction pit planning, special deep foundation works, geotechnical investigations, fire protection, infrastructure construction, building construction, structural design, asset preservation and utility line construction.
Urban drainage
Rainwater management, sponge city and blue-green infrastructure, drainage concepts, GEP/VGEP, sewerage, hydraulics and integrated network management.
Digital planning
BIM management, coordination and modelling, GIS with network information systems and sewer cadastre, as well as CAD-assisted 3D modelling and visualisations.
Water engineering
Development of fundamentals, flood protection, revitalisation, definition of watercourse space, watercourse maintenance planning, emergency planning and reconstruction measures.
Environment & sustainability
Contaminated site investigation and remediation, building contaminants, environmental compatibility, environmental construction monitoring, sustainability consulting, groundwater and geology topics.
Industry
Solutions for industry in water, energy and environment, including water supply and recycling systems, industrial wastewater treatment, drainage, exhaust air treatment and energy systems.
Trust & reputation

ranQ Trust Score of Willy Holinger AG Haustechnik: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Willy Holinger AG Haustechnik scores 53.8 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.70.824%
  • 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.27.910%
  • 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%
Willy Holinger AG Haustechnik 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%
Willy Holinger AG Haustechnik 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%
Willy Holinger AG Haustechnik scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Willy Holinger AG Haustechnik 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 2 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once Willy Holinger AG Haustechnik has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Willy Holinger AG Haustechnik in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Willy Holinger AG Haustechnik by reviews, experience and specialisations.

Is this your company?

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

Secure profile

Location

Hammerweg 3
4410 Liestal
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.812.879
Founded
1975 · 51 years
Last commercial register change
July 27, 2016
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

    IM
    INTEGRA Metering AG
    Therwil
    EA
    enelco ag
    Muttenz
    PA
    Pronexis AG
    Bottmingen
    EB
    Elektro Brodbeck AG
    Reinach Bl
    SI
    Selmoni Infranet AG
    Münchenstein
    PA
    ProSolis AG
    Arlesheim
    BA
    bürgi.com AG
    Muttenz
    EG
    el-planning gmbh
    Füllinsdorf