Civil Engineering in the
Canton of St. Gallen

Brühwiler AG

Since 1990 · 21–50 empl.·4.4(15)

Hagedorn AG

Since 1976 · 51–100 empl.·4.5(14)

Hagedorn AG is a construction company providing road and civil engineering works and related services. Offerings include asphalt paving, mastic asphalt and waterproofing, transport and crane services, recycling of construction materials, milling and core drilling, and winter road services; the company holds ISO 9001, ISO 14001 and ISO 45001 certifications.

Karl Rüegg Tiefbau und Transport AG

Since 1979 · 11–20 empl.·3.9(21)

The core activity of Rüegg Karl Tiefbau und Transport AG primarily encompasses the following areas: * Civil engineering works (deep and pipeline construction, environmental works, road construction) * Transport and logistics (transport services, skip and container services) * Waste management and recycling (waste disposal park, sorting and processing plant, collection service) * Additional services (riding arena construction, winter maintenance) Thus, the company offers a comprehensive range of services in the fields of construction, transport and waste management.

Jakob Schneider AG

Since 1979 · 21–50 empl.·4.5(11)

The core activity of J. Schneider AG includes construction and civil engineering, including renovation/refurbishment, customer masonry work (such as tiling, plastering, exterior insulation, etc.) as well as environmental work and excavation services.

De Zanet AG

Since 1995 · 21–50 empl.·4.5(17)

The core activity of De Zanet AG is road and civil engineering, including earthworks, grading, surfacing, paving, canal and pipeline construction, excavation, shoring, environmental works and other related services.

KIBAG Bauleistungen AG

Since 2001 · 11–20 empl.·4.4(14)

KIBAG Bauleistungen AG provides a broad range of construction services, including road construction, civil and demolition works, water and special deep foundation works, contaminated-site remediation, sewer services, drilling, geothermal probes and vacuum-excavation operations. Its services also cover sealing and guss asphalt, vehicle restraint systems, joint technology, airfield construction, general/total contracting and construction support, as well as canal inspection and rehabilitation. The business units are ISO-certified and operate within the KIBAG group.

John & Sommer Bau AG

Since 2011 · 11–20 empl.·4.6(15)

The core activity of John + Sommer Bau AG is construction, including the execution of construction projects, demolition work and customer work in the field of construction.

Hürlimann Bau AG

Since 2012 · 11–20 empl.·4.3(26)

Hürlimann Bau AG is a construction company providing services in road construction, civil engineering and landscaping. Its service range includes road works, earthworks, demolition, utility installation, water engineering, specialist deep-foundation work, and garden design and maintenance.

Keller Bauunternehmung AG

Since 1997 · 11–20 empl.·4.5(10)

The core activity of Keller Bauunternehmung AG encompasses the execution of construction projects in the following areas: * Building construction (residential buildings, industrial halls, hotels, conversions, renovations) * Civil engineering (excavation work, pipeline construction, sewage systems, retaining walls, forecourts) * Demolition (demolition excavators, concrete demolition, recycling) * Mobile crane work (with various mobile cranes up to 220 tons of lifting capacity) The company thus offers a wide range of construction services and is capable of carrying out complex construction projects from planning to completion.

Dietsche Strassenbau AG

Since 1971 · 21–50 empl.·4.1(16)

Dietsche Strassenbau AG is a road and civil engineering company. It provides road construction, specialist deep‑foundation and civil engineering works, utility/works installations and outdoor space/landscaping services.

LG Bau AG

Since 2013 · 21–50 empl.·4.8(6)

The company's core activities include construction, gravel and concrete plant, general contracting, road construction, civil engineering, structural engineering, plastering, facade construction, drywall construction, fireproofing, sealing, building renovation, special flooring, drilling and milling work, crack injection, concrete renovation, conversion and renovation.

Püntener Sportplatz- und Spielfeldmarkierung AG

Since 2015 · 1–10 empl.·4.8(10)

Püntener Sportplatz- und Spielfeldmarkierung AG provides floor marking and signage services with a focus on sports field and playground markings. The company carries out norm-compliant markings (e.g. BASPO, World Athletics), renewal of faded lines, and also offers road, parking and garage markings as well as hall and surface cleaning services.

Zulian + Co. AG

Since 1993 · 1–10 empl.·4.9(7)

Zulian + Co. AG is a construction firm offering masonry and plastering services, demolition and small concrete works, as well as repairs and concrete restoration.

Alois Püntener AG

Since 2016 · 1–10 empl.·4.8(10)

The core activity of Alois Püntener AG is the provision of services in the field of markings, signage, hall and area cleaning, as well as sports field markings, particularly for sports fields and stadiums.

Stemba AG

Since 2018 · 1–10 empl.·5.0(17)

The core activity of Stemba AG is trenchless deep construction, particularly earth sounding drilling and controlled flushing drilling technology. This includes: earth sounding drilling, controlled flushing drilling technology (horizontal drilling technology), deep construction, house connections using earth rockets and controlled pressing equipment, pipeline detection, PE pipe transport and welding. The company carries out these activities to enable crossings of roads, tracks, intersections, streams, etc. that cannot be carried out or are not permitted using conventional trenching methods.

Jul. Peter GmbH

Since 2002 · 1–10 empl.·4.9(10)

The core activity of Jul. Peter Sargans includes the following areas: crane operations, transportation, civil engineering, and gravel plant. Thus, the company offers a wide range of services in the construction and infrastructure sectors.

A. Grob Baugeschäft AG

Since 1997 · 11–20 empl.·4.9(9)

The core activity of A. Grob Baugeschäft AG encompasses the following services: High-rise and civil engineering, renovations, environmental design, crane and grabber work, excavation and transportation work. The company thus offers a wide range of construction services, ranging from new buildings and renovations to environmental design and specialized crane and grabber work.

Peterer AG

Since 1979 · 1–10 empl.·4.2(13)

The core activity of Peterer AG is the construction and execution of construction projects, including renovation, refurbishment, customer work, civil engineering and underground construction. The company also offers apprenticeships for bricklayers and provides vocational training.

Gebrüder Mahler AG

Since 1992 · 21–50 empl.·5.0(5)

The company is a family-owned business in the construction industry, specializing in master builder services and comprehensive construction solutions. The core activities include: master builder services (new construction, renovation, refurbishment), comprehensive construction solutions (planning, project development, construction management, environmental work), consulting and accompanying customers in construction projects, and executing construction projects with its own team and partners. Thus, the company offers comprehensive services in the field of construction, from planning to execution of construction projects.

Alder-Zani AG

Since 1981 · 11–20 empl.·4.2(10)

The core activity of Alder-Zani AG is road construction and civil engineering.

Reto Vils AG

Since 1998 · 11–20 empl.·4.9(7)

The core activity of Reto Vils AG is construction, including high and low construction, transportation and excavation.

nevos ag

Since 2019 · 11–20 empl.·4.2(24)

The core activity of Nevos AG is the planning, installation and maintenance of telecommunications networks, particularly in the field of fibre optic and copper technology, as well as in building technology. The company offers tailored solutions to cope with the rapidly evolving telecommunications landscape and builds infrastructures that meet the demands of the future.

Remora AG

Since 1986 · 11–20 empl.·4.6(5)

The core activity of Remora AG is the execution of special works in road and civil engineering, particularly in the areas of: * Milling works (surface milling, area milling, depth milling, slot milling, fine milling) * Cutting works * Marking * Profiling The company thus offers a wide range of services in the field of road and civil engineering works.

AZ Armierungen AG

Since 2005 · 11–20 empl.·4.4(8)

The core activity of AZ Armierungen AG is the laying and fixing of reinforcements of all kinds in the construction industry. The company offers services such as precise laying and fixing of reinforcements according to plan, creating and dismantling scaffolding, as well as site management work.

Bruno Mattle AG

Since 2010 · 21–50 empl.·5.0(8)

The core activities of Bruno Mattle AG include the following services: excavation and civil engineering, demolition of buildings, hydraulic engineering and environmental protection (e.g. construction of dams for flood protection or natural ponds), gravel processing (with mobile screening plant), and environmental work (e.g. implementation of customer requests and projects). The company thus offers a wide range of services in the fields of construction and environmental technology.

Gebr. Hermann AG

Since 1993 · 1–10 empl.·5.0(4)

Gebr. Hermann AG is a construction company offering road construction, civil engineering (earthworks), building construction, landscaping/site works and demolition services. The company maintains its own machinery and vehicle fleet to perform transport, excavation and paving works.

Johann Müller AG, Kieswerk und Baggereiunternehmung

Since 1954 · 11–20 empl.

The core activity of JMS Group encompasses the supply of building materials such as gravel, sand and concrete, as well as the provision of construction services including specialized civil engineering, water, shore and port construction, heavy transport and disposal. In addition, the company also offers recycling and waste management services.

Cellere Bau AG

Since 1956 · 51–100 empl.

Cellere Bau AG is a construction company offering road and civil engineering, structural repair, and general building (baumeister) services. It performs planning and execution of infrastructure projects, concrete repairs (including UHFB and carbon reinforcements), utility works and renovation projects.

Genossenschaft für ländliches Bauen (GLB) Sarganserland

Since 1965 · 11–20 empl.

Genossenschaft für ländliches Bauen (GLB) Sarganserland performs baumeister (builder) works in building construction and civil engineering and works on agricultural/utility buildings, including concrete access tracks and dry-stone walls. Services include new construction and renovation, excavation, drainage and utility-line work, and tasks adapted to sites with difficult access.

Aktiengesellschaft Cellere

Since 1968 · 101–500 empl.

Aktiengesellschaft Cellere is a construction company offering road and civil engineering, structural repair, and building renovation services. It provides project planning and execution as a contractor, uses digital construction processes including BIM, and states commitments to quality management and sustainability.

Toller Strassenbau AG

Since 1977 · 1–10 empl.

Toller Strassenbau AG carries out road-construction works, including surfacing, paving, rural roads, structural works and material processing. The company provides construction services within the areas of garden construction, road construction and civil engineering.

E. Thurnherr AG, Altstätten

Since 1978 · 1–10 empl.

E. Thurnherr AG, Altstätten is a company active in road construction, civil engineering, garden landscaping and transport services. Its services include paving work, excavation, drainage and slope protection, garden projects, snow removal and recycling.

Blöchlinger AG

Since 1978 · 11–20 empl.·3.8(12)

The core activity of Blöchlinger AG encompasses the areas of disposal, processing and supply of building materials, in particular the utilization of construction waste, demolition, civil engineering, old wood, green materials and non-ferrous metals. The company also produces building materials such as gravel, recycling products and eco-concrete (NeoCret) from recycled raw materials.

Cellere Bau AG

Since 1979 · 51–100 empl.

Cellere Bau AG is a construction company that carries out road and civil engineering projects, structural repairs and general building contractor services.

Toldo Strassen- und Tiefbau AG Wil

Since 1980 · 11–20 empl.

Toldo Strassen- und Tiefbau AG Wil provides road and civil engineering services. Its offerings include road construction, civil and utility works, natural stone and paving, landscaping, material recycling, demolition/earthworks and sports-construction projects.

Eugen Brunschwiler

Since 1981 · 1–10 empl.

The core activity of Eugen Brunschwiler Bauunternehmung is the provision of services in the field of construction, particularly: * Building construction * Civil engineering * Demolition work * Excavation * Scaffolding work * Environmental work * Utility lines * Construction yard The company thus offers a wide range of construction services, from planning and execution of construction projects to specialized services such as demolition work and scaffolding work.

Robert Bruderer AG, Berneck

Since 1981 · 1–10 empl.

The core activity of Bruderer Robert AG is transportation.

F. Zeller AG

Since 1985 · 11–20 empl.

F. Zeller AG is a construction company offering building construction and civil engineering services, along with demolition, renovations and remodelling, site works, waterproofing, core drilling and dry-stone wall construction.