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.
All 7 companies in Altstätten SG
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.

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.
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.
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.
Sottolago GmbH
Since 2021 · 1–10 empl.
Alpha Fiber KLG
Since 2024 · 1–10 empl.
Dietsche Strassenbau AG
1–10 empl.
Civil works in Altstätten SG
Civil works in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of November 7, 2026
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