Building Construction in
Widnau

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

Companies

All 10 companies in Widnau

Köppel-Vogel AG Logo

Köppel-Vogel AG

Since 1966

Building constructionCivil engineering
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Gebr. Kühnis AG, Widnau Logo

Gebr. Kühnis AG, Widnau

Since 1972

Above-ground constructionUnderground constructionChimney construction
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Sohm AG Schweiz Logo

Sohm AG Schweiz

Since 2011

Building constructionDiagonalDübelholzMass timber construction for single-family houses
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Kurt Heule GmbH Logo

Kurt Heule GmbH

Since 2014

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

HANSESUN AG

Since 2007

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BG

BauStar GmbH

Since 2009

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R1

RF-Promotion 1 AG

Since 2015

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IG

Immoabteilung GmbH

Since 2017

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AG

a-workz GmbH

Since 2021

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J&

J & A Service GmbH

Since 2023

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Building Construction in Widnau

10Building ConstructionCommercial register (Zefix) · as of September 24, 2026
2014Median year of registrationCommercial register (Zefix) · as of September 24, 2026
384in the Canton of St. GallenCommercial register (Zefix) · as of September 24, 2026
5,263in SwitzerlandCommercial register (Zefix) · as of September 24, 2026
Locations

Building Construction in the region

Point size by number of companies per place.

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

Largest places

St. Gallen39Wil SG11Buchs SG9Kaltbrunn9Oberriet SG8Mels8Flawil8Wattwil8Altstätten SG6Rorschach6
Industry axis

Building Construction in other places

Building Construction across Switzerland
St. Gallen39Wil SG11Buchs SG9Kaltbrunn9Oberriet SG8Mels8Flawil8Wattwil8Altstätten SG6Rorschach6Sevelen6Goldach6Tübach6Sargans6Niederuzwil6Diepoldsau5Rheineck5Walenstadt5Gossau SG5Uznach5Eschenbach SG5Jona5

By canton

Canton of Zurich728Canton of Bern536Canton of Aargau393Canton of St. Gallen384Canton of Vaud370Canton of Valais345Canton of Ticino305Canton of Lucerne262Canton of Grisons256Canton of Thurgau226Canton of Geneva187Canton of Schwyz167Canton of Zug164Canton of Solothurn160Canton of Basel-Country141Canton of Fribourg136Canton of Schaffhausen70Canton of Neuchâtel59Canton of Appenzell Outer Rhodes55Canton of Glarus53Canton of Jura49Canton of Nidwalden41Canton of Obwalden36Canton of Appenzell Inner Rhodes31Canton of Uri24
Place axis

Other industries in Widnau

All companies in Widnau
Property Management63Real Estate Project Development57Management Consulting45Holding Companies44Real Estate Brokerage39IT Consulting & Services34Wholesale - General Specialty Trade25Automotive & Vehicle Trade23Technical Consulting & Engineering22Building Maintenance21Architecture Firms20Restaurants20General Contractors17Painting & Plastering17Mechanical Engineering Industry17Wholesale - Machinery & Technical Equipment17Coaching & Personal Development16Construction & Project Management16Metal Construction16Hair Salons15Software Development15Facility Management & Cleaning15Advertising Agencies14Auto Repair Shops14Online Shops14Logistics & Transport Companies14Beauty Salons13Medical Technology Industry13Other Service Industries12Interior Construction12General Goods Production11Retail - Textiles & Clothing11Electrical Planning & Installation10Retail - Food & Luxury Items10Recruitment & HR Consulting9Trade Fair & Event Organizers9Horticulture & Landscaping9Sealing & Insulation9Flooring & Tiling9Joinery9Plumbing & Building Services9Solar & Photovoltaics9Fiduciary Offices9Metal Industry9Textile & Clothing Industry9Retail - General Specialty Trade9Photography8Repair of Machinery & Electronic Devices8