Civil works in
Altstätten SG

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

Companies

All 7 companies in Altstätten SG

E. Thurnherr AG, Altstätten Logo

E. Thurnherr AG, Altstätten

Since 1978 · 1–10 empl.

E. Thurnherr AG, Altstätten operates in road construction and civil engineering. Its services include excavation, sewer and pipeline works, garden design, transport, snow clearance and recycling.

Civil worksRoad constructionCivil engineering worksGarden design
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #1
HPT Solutions AG Logo

HPT Solutions AG

Since 2005 · 11–20 empl.5.0(2)

HPT Solutions AG develops and markets precise, interconnected measurement systems for quality assurance in geothermal energy – from the drilling process through backfilling to leak testing. The product portfolio includes backfill measurement devices, pressure testing devices, cloud-based drilling data loggers, devices for performing Thermal Response Tests (TRT), ground-penetrating radar systems as well as a wide range of accessories. The offering is complemented by a cloud platform hosted in Europe for central storage, evaluation, and documentation of the measurement data.

Machine repairDigital quality assurance for geothermal projectsPressure Test Device for Ground Probes (HPT PressureEvo)Backfill density measurement device/Documentation of the compaction process (HPT DensityPro)
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #2
Hof Gschwend Logo

Hof Gschwend

Since 2021 · 1–10 empl.

Hof Gschwend provides transport, earthmoving, civil engineering and garden maintenance services. Offerings include excavation and pipeline works, garden construction (paths, walls), winter services, and transport of bulk materials and machinery.

Civil worksEarthmoving and Civil EngineeringLandscape Gardening and Garden DesignExternal Works
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #3
Gschwend Garten- und Tiefbau GmbH Logo

Gschwend Garten- und Tiefbau GmbH

Since 2025 · 1–10 empl.

Gschwend Garten- und Tiefbau GmbH provides services in earthworks, civil engineering, gardening and transport. Its activities include excavation work, utility and path construction, garden design, landscaping work, winter services, and the transport of construction and agricultural machinery.

Civil worksEarthworks and civil engineeringGarden design and surrounding area worksWinter maintenance service
ranQ Trust Score 3.6 out of 5.0, rated Solid, Rank #4
SG

Sottolago GmbH

Since 2021 · 1–10 empl.

Building contractor
No score yet
AF

Alpha Fiber KLG

Since 2024 · 1–10 empl.

Civil works
No score yet
DS

Dietsche Strassenbau AG

1–10 empl.

Civil works
No score yet

Civil works in Altstätten SG

7Civil worksCommercial register (Zefix) · as of November 7, 2026
2021Median 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