Civil works in
Gossau SG

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

Companies

All 7 companies in Gossau SG

HASTAG St. Gallen Bau AG, Zweigniederlassung Gossau Logo

HASTAG St. Gallen Bau AG, Zweigniederlassung Gossau

Since 2002 · 21–50 empl.4.7(18)

HASTAG St. Gallen Bau AG, Zweigniederlassung Gossau operates in the construction sector, providing civil engineering and specialist foundation engineering services. Its activities also include geothermal drilling, gravel supply and the proper disposal of construction waste.

Civil worksCivil engineering
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #1
Alder-Zani AG Logo

Alder-Zani AG

Since 1981 · 11–20 empl.4.2(10)

Alder-Zani AG operates in road and civil engineering. Its work includes road and asphalt construction, utility lines and drainage, infrastructure maintenance, repairs and rehabilitation, as well as paving.

Civil worksRoad construction / road surfacingUtility line construction / drainageMaintenance / repair / renovation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #2
HOLENSTEIN AG, Bauunternehmung Logo

HOLENSTEIN AG, Bauunternehmung

Since 1973 · 11–20 empl.5.0(1)

HOLENSTEIN AG, Bauunternehmung carries out building and civil engineering work, including renovations and extensions. Its services also include skip hire, disposal, truck crane work and transport of construction materials.

Building contractorBuilding constructionCivil engineeringAlterations / extensions
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #3
Rohner Erdbau AG Logo

Rohner Erdbau AG

Since 2025 · 1–10 empl.

Rohner Erdbau AG offers services for new installations, planting and paving.

Civil worksNew installationsPlanting workPaving work
No score yet
DA

Depko AG

Since 2004 · 1–10 empl.

Civil works
No score yet
SG

Stybohr GmbH

Since 2007 · 1–10 empl.

Civil works
No score yet
BS

Baucon Schweiz AG

Since 2024 · 1–10 empl.

Building contractor
No score yet

Civil works in Gossau SG

7Civil worksCommercial register (Zefix) · as of November 7, 2026
2004Median year of registrationCommercial register (Zefix) · as of November 7, 2026
318in the Canton of St. GallenCommercial register (Zefix) · as of November 7, 2026
3,407in SwitzerlandCommercial register (Zefix) · as of November 7, 2026
Locations

Civil works in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 7, 2026