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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint742,806 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsWinterthurHOLINGER AG
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Verified· 4 sources

HOLINGER AG

Summary

About the company

HOLINGER AG is an engineering firm that develops and delivers solutions across the water cycle. Its services include engineering and consultancy in wastewater, water supply, hydraulic engineering, urban drainage, energy, construction, industry, geology, environmental and sustainability services, and digital planning (BIM).

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Offering

Products & services

Industry:Civil Engineering Firms
✓ Offered9
Construction
Complex structures in water, in urban settings, civil engineering and industrial construction; excavation pit planning, special deep foundations, geotechnical investigations, fire protection, earthquake checks, structural engineering, utility line construction.
Wastewater
Wastewater treatment plants for municipal and industrial wastewater; upgrades, new builds, operational optimization, elimination of micro-pollutants, sludge recovery, phosphorus recovery and nitrogen removal.
Urban drainage
Stormwater management, sponge city and blue-green infrastructure; drainage concepts, GEP/VGEP, sewerage, special structures, hydraulics, network management and measurement campaigns.
Water supply
Plant and utility line construction, drinking water treatment, consulting and operational support; strategic water supply planning, quality assurance, regulations, protection zones and hydraulic calculations.
Water engineering
Development of fundamentals, hazard mapping, risk analyses and hydrology reports; flood protection, revitalization, definition of the river corridor, emergency planning and event analysis.
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Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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Press

Media

June 30, 2026Media
«Het äs Gschmäckli»: Gemeindepräsidentin gibt Ehemann Bauaufträge
20min.ch

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Location

Schützenstrasse 3
8400 Winterthur
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
Branch
UID
CHE-300.379.149
Founded
1968 · 58 years
Last commercial register change
April 16, 2024
Employees
11 to 20

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