Building Construction in
Widnau

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

Companies

All 7 companies in Widnau

Köppel-Vogel AG

Since 1966

Building constructionCivil engineering

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Gebr. Kühnis AG, Widnau

Since 1972

Above-ground constructionUnderground constructionChimney construction

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Kurt Heule GmbH

Since 2014

Ventilation hygiene and ventilation cleaningHygiene inspection according to VDI 6022Cleaning of photovoltaic systems

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Sohm AG Schweiz

Since 2024

Building constructionDiagonalDübelholzMass timber construction for single-family houses

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HANSESUN AG

Since 2007

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BauStar GmbH

Since 2009

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a-workz GmbH

Since 2021

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Building Construction in Widnau

7Building ConstructionCommercial register (Zefix) · as of August 26, 2026

2009Median year of registrationCommercial register (Zefix) · as of August 26, 2026

245in the Canton of St. GallenCommercial register (Zefix) · as of August 26, 2026

3,490in SwitzerlandCommercial register (Zefix) · as of August 26, 2026

Locations

Building Construction in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of August 26, 2026

Largest places

St. Gallen25 Mels7 Wattwil7 Wil SG7 Buchs SG6 Kaltbrunn6 Diepoldsau5 Oberriet SG5 Sargans5 Uznach5

Place axis

Other industries in Widnau

All companies in Widnau

Property Management27 Real Estate Project Development24 Management Consulting21 Holding Companies21 Real Estate Brokerage20 IT Consulting & Services19 Architecture Firms18 Automotive & Vehicle Trade16 Metal Construction14 Hair Salons14 Mechanical Engineering Industry14 Restaurants14 Medical Technology Industry12 Technical Consulting & Engineering11 Painting & Plastering11 Online Shops11 Construction & Project Management10 General Contractors10 Beauty Salons10 Software Development10 Metal Industry9 Advertising Agencies9 Auto Repair Shops9 Retail - Textiles & Clothing9 Wholesale - Machinery & Technical Equipment9 Interior Construction8 Electrical Planning & Installation8 Logistics & Transport Companies8 Building Maintenance7 Horticulture & Landscaping7 Flooring & Tiling7 Solar & Photovoltaics7 Fiduciary Offices7 Textile & Clothing Industry7 Retail - Food & Luxury Items7 Hotels7 Coaching & Personal Development6 Photography6 Plumbing & Building Services6 Specialized Construction Installations6 Wellness & SPA Facilities6 Electrical Industry6 General Goods Production6 Packaging Industry6 Facility Management & Cleaning6 Retail - Health & Cosmetics6 Recruitment & HR Consulting5 Civil Engineering Firms5

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Building Construction inWidnau

All 7 companies in Widnau

Building Construction in the region

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Building Construction in
Widnau