Specialized Construction Installations in
Widnau

8 companies in Specialized Construction Installations based in Widnau — name and year of registration from the commercial register. The list below shows them all.

Companies

All 8 companies in Widnau

Euroda GmbH

Since 2001

Smoke extractionDaylight technologyBuilding envelope

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topairsystems - topal

Since 2012

Ventilation system solutionsVentilation ducts and fittingsVentilation units

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GLASTECH Fire GmbH

Since 2008

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Helvetherm GmbH

Since 2013

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Girardet Fritz

Since 1988

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RFM Swiss GmbH

Since 2012

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primaklima E. Poletti

Since 2015

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Eugster Holzwurm Montagen GmbH

Since 2026

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Specialized Construction Installations in Widnau

8Specialized Construction InstallationsCommercial register (Zefix) · as of September 24, 2026

2012Median year of registrationCommercial register (Zefix) · as of September 24, 2026

220in the Canton of St. GallenCommercial register (Zefix) · as of September 24, 2026

3,357in SwitzerlandCommercial register (Zefix) · as of September 24, 2026

Locations

Specialized Construction Installations in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of September 24, 2026

Largest places

St. Gallen23 Wittenbach9 Diepoldsau7 Gossau SG7 Wil SG7 Kirchberg SG7 Au SG6 Buchs SG6 Niederuzwil6 Flawil5

Place axis

Other industries in Widnau

All companies in Widnau

Property Management63 Real Estate Project Development57 Management Consulting45 Holding Companies44 Real Estate Brokerage39 IT Consulting & Services34 Wholesale - General Specialty Trade25 Automotive & Vehicle Trade23 Technical Consulting & Engineering22 Building Maintenance21 Architecture Firms20 Restaurants20 General Contractors17 Painting & Plastering17 Mechanical Engineering Industry17 Wholesale - Machinery & Technical Equipment17 Coaching & Personal Development16 Construction & Project Management16 Metal Construction16 Hair Salons15 Software Development15 Facility Management & Cleaning15 Advertising Agencies14 Auto Repair Shops14 Online Shops14 Logistics & Transport Companies14 Beauty Salons13 Medical Technology Industry13 Other Service Industries12 Interior Construction12 General Goods Production11 Retail - Textiles & Clothing11 Building Construction10 Electrical Planning & Installation10 Retail - Food & Luxury Items10 Recruitment & HR Consulting9 Trade Fair & Event Organizers9 Horticulture & Landscaping9 Sealing & Insulation9 Flooring & Tiling9 Joinery9 Plumbing & Building Services9 Solar & Photovoltaics9 Fiduciary Offices9 Metal Industry9 Textile & Clothing Industry9 Retail - General Specialty Trade9 Photography8

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Specialized Construction Installations inWidnau

All 8 companies in Widnau

Specialized Construction Installations in the region

Specialized Construction Installations in other places

Other industries in Widnau

Specialized Construction Installations in
Widnau