Civil works in
Widnau

5 companies in Civil works based in Widnau — name and year of registration from the commercial register. The list below shows them all.

Companies

All 5 companies in Widnau

Kurt Heule GmbH Logo

Kurt Heule GmbH

Since 2014 · 1–10 empl.

Kurt Heule GmbH provides hygiene inspections, cleaning and maintenance for ventilation systems. Its other services include filter servicing, photovoltaic panel cleaning and flat-roof maintenance.

Building contractorVentilation hygiene and ventilation cleaningHygiene inspection according to VDI 6022Cleaning of photovoltaic systems
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #1
Köppel-Vogel Grundbau AG Logo

Köppel-Vogel Grundbau AG

Since 2010 · 1–10 empl.5.0(2)

Köppel-Vogel Grundbau AG is a construction company working in building, civil and foundation engineering. Its services include residential and industrial construction, earthworks and bridge construction, pile foundations, sheet piling and vibration monitoring.

Civil worksPile foundationsSheet pilingVibration measurements
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #2
Gebr. Kühnis AG, Widnau Logo

Gebr. Kühnis AG, Widnau

Since 1972 · 1–10 empl.5.0(4)

The core activity of Gebr. Kühnis AG is the execution of civil engineering and construction work. Specifically, this includes pipeline construction, excavation, environmental work, earthwork, construction of forecourts, as well as the realization of high-rise buildings such as single-family homes, residential buildings, office and industrial buildings.

Building contractorAbove-ground constructionUnderground constructionChimney construction
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #3
Casanova Tech GmbH Logo

Casanova Tech GmbH

Since 2026 · 1–10 empl.

Casanova Tech GmbH provides services in fiber-optic infrastructure and FTTH network deployment. The company plans and builds fiber networks, carries out cable pulling in ducts and shafts, and performs technical installations for municipalities and utility providers.

Civil worksFTTH Fibre RolloutCable Pulling in Conduits and ShaftsTechnical Assembly Services
ranQ Trust Score 3.4 out of 5.0, rated Solid, Rank #4
SL

STB Lohnfahrten GmbH

Since 2022 · 1–10 empl.

Civil works
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Civil works in Widnau

5Civil worksCommercial register (Zefix) · as of November 6, 2026
2014Median year of registrationCommercial register (Zefix) · as of November 6, 2026
318in the Canton of St. GallenCommercial register (Zefix) · as of November 6, 2026
3,407in SwitzerlandCommercial register (Zefix) · as of November 6, 2026
Locations

Civil works in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 6, 2026