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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding CompaniesLiestalPeter Holinger AG
Peter Holinger AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Peter Holinger AG is an engineering firm providing services for the water cycle, including wastewater, water supply, hydraulic engineering and urban drainage. It delivers planning, consultancy and project implementation and offers expertise in energy, construction, industry, digital planning and environmental sustainability.

AI-generated
Offering

Products & services

Industry:Holding Companies
✓ Offered10
Water cycle solutions
Comprehensive engineering solutions for the water cycle, supported by multidisciplinary teams in regional, national and international projects.
Wastewater
Planning and support of projects in wastewater technology, with specialist expertise for solutions related to wastewater and wastewater treatment plants.
Urban drainage
Engineering services for drainage of settlement areas, including planning and project-related support.
Water supply
Planning, consulting and project support for water supply systems and a secure drinking water supply.
Water engineering
Engineering services for water engineering projects, with solutions for waterways, structures and water-related infrastructure.
Construction
Engineering services in the construction sector, including project-related planning and support for construction projects.
Energy
Engineering services for energy projects, in particular in connection with technical and sustainable solutions.
Digital planning
Digital planning services for engineering projects, supported by modern planning and coordination methods.
Industry
Engineering services for industrial projects, tailored to technical requirements and water-related infrastructure.
Environment & sustainability
Engineering services focused on environmental and sustainability aspects, resource-conserving processes and future-oriented solutions.
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3.9/5

Peter Holinger AG

Trust & reputation

ranQ Trust Score of Peter Holinger AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 100% · As of October 2026

Peter Holinger AG 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%
Peter Holinger AG scores 85.5 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%
Peter Holinger AG scores 86.7 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).86.722%
Peter Holinger AG scores 50.0 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: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Peter Holinger AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 customer reviews. 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.

Press

Media

January 18, 2023Media
Holinger Gruppe mit Sitz in Liestal hat mit Andreas Borer einen neuen Konzernchef
bzbasel.ch

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Location

Vogelsangweg 17
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-103.829.840
Founded
1990 · 36 years
Last commercial register change
March 11, 2013
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

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