Civil Engineering

Hof Gschwend 

Altstätten Sg · Since 2021

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.

Gut Hoch- und Tiefbau GmbH 

Basel · Since 2015

The core activity of Gut Hoch- und Tiefbau GmbH is the construction and erection of high-rise and underground buildings, including all related work such as planning, execution and maintenance of buildings.

Gwerder Baggerarbeiten GmbH 

Sattel · Since 2022

Gwerder Baggerarbeiten GmbH provides excavation, civil engineering and earthworks services, including excavation, demolition, sewer and utility construction, site development, landscaping, clearing and related cable-pulling work.

D. Gysin Immobilien GmbH 

Möhlin · Since 2007

The core activity of Gysin Kundenmaurer GmbH is the execution of masonry work, environmental work and smaller renovation/conversion work.

HABITAT3 Sagl 

Rancate · Since 2013

The core activity of Habitat3 encompasses the following areas: Excavations and Earthworks, Transportation of materials and goods, Demolitions of buildings and structures, Supply of Inert Materials, Civil Engineering (construction of infrastructure such as roads, bridges, and sewage systems), and Debris Disposal. The company thus offers a wide range of services in the construction and infrastructure sectors.

Hansjörg Küng AG, Bauunternehmen, 6162 Entlebuch 

Entlebuch · Since 1978

The core activity of Hansjörg Küng AG is the provision of services in the construction sector, specifically: * Building construction (new buildings, conversions, renovations) * Civil engineering (underpinning of roads and forecourts) * Conversion and renovation of existing buildings * Environmental design * Drain and sewer services (cleaning and maintenance of drains and sewers) The company thus offers a wide range of construction-related services and positions itself as a flexible and customer-oriented construction company.

Hartmann & Sohn AG Fideris 

Fideris · Since 1993

The core activity of Hartmann & Sohn AG primarily encompasses civil engineering and construction work, including: Civil engineering: excavation work, cable trenches, road construction, terrain improvements, cable plowing, stream and slope stabilization, block stone walls, water intakes, environmental work, renaturation of high moors, bike and hiking trail construction. Construction: masonry work, concrete work, exposed concrete formwork, natural stone floors, rubble stone walls, plastering work, renovation work, demolition work. Granite processing: sale of Calanca gneiss and Serizzo-Antigorio plates, custom cutting, production of window sills, wall cladding, chimney hoods, stair treads, table tops, benches, facade bases and house entrances. Planning: new buildings, renovations, residential buildings, barns, developments, Maiensäss renovations, agricultural terrain improvements. The company thus offers a wide range of services in the construction sector, from planning to execution of construction projects.

H. Bachmann AG 

Aadorf · Since 1949

H. Bachmann AG discontinued its operational construction activities at the end of 2025 and now focuses on property management and the development of real estate. Previously the company carried out building, civil engineering and renovation projects.

HD Netzbau AG 

Arbon · Since 2016

The core activity of HD Netzbau AG is the planning, execution and implementation of projects in the field of network construction, particularly: fibre optic construction, cable construction, low and high voltage, transformer station construction (rebuilding and new construction), overhead line construction and lighting. The company offers its services from planning to execution and specializes in the construction and expansion of networks for the energy and telecommunications industries.

Heid Tec AG 

Buus · Since 2023

Heid Tec AG is a family-owned company providing services in floor technology and concrete restoration. Its services include removal of floor coverings, renovation and rebuilding of substrates, floor installation, surface milling, flow screed and leveling layers, shot blasting and grinding of substrates.

Heid Tec Nord GmbH 

Buus · Since 2017

Heinz Bamert Transport AG 

Innerthal · Since 1989

The core activity of Heinz Bamert Transport AG includes services in the field of road and civil engineering, including demolition, dismantling, excavation, road and pipeline construction, excavation pit securing, sale of concrete and gravel, crushing and screening work, transportation, skip service, disposal and winter maintenance.

hemmerlein gmbh 

Spreitenbach · Since 2013

The core activity of Hemmerlein Ingenieurbau GmbH is the manufacture and assembly of individual exposed concrete and architectural concrete facades, precast concrete elements and prefabricated brick facades for building construction. The company also offers engineering services, turnkey construction and assembly, with a focus on sustainability and climate protection.

Herrmann Baggerbetrieb 

Egg B. Zürich · Since 2012

The core activity of Herrmann is the execution of excavation work and related services such as demolition, excavation, stream construction, drilling of earth holes, civil engineering, dry stone walls, forest and field road maintenance, as well as winter services.

Herzog Bau AG 

Menziken · Since 2000

The core activity of Herzog Holz AG is timber construction and carpentry, particularly the planning and execution of: timber frame construction, roof structures, extensions and renovations, facade renovations, interior construction and renovation, and refurbishments. The company thus offers a wide range of services in the field of timber construction and carpentry.

HeSan GmbH 

Tuggen · Since 2011

The core activity of Hesan GmbH is the rehabilitation and maintenance of sewer systems and wastewater pipes, particularly through the development and application of patented individual joint testing and rehabilitation systems, such as the HESAN system. This system enables the testing and rehabilitation of sewer systems joint by joint, even in difficult areas such as bends and branch pipes. The rehabilitation includes the elimination of leaks, infiltrations and damage to pipe connections, joints and saddle connections.

Hess AG Erdbau + Recycling 

Laupen Zh · Since 2010

Hess AG Erdbau + Recycling is a subsidiary of FBB and carries out excavation, earthworks, demolition and deconstruction. Services include construction pit excavation, general excavator work using machines from 3 to 40 tonnes, site shaping and the separation of reusable materials for recycling.

Hewibau AG 

Beinwil Am See · Since 1982

The core activity of Hewibau AG is road and civil engineering, particularly: excavation and sewerage works, construction of driveways, parking spaces and forecourts, road and asphalt paving, trenching for water and well pipes, laying of pipe and cable systems, tunneling under obstacles, and rehabilitation and development of utility lines. The company thus offers a wide range of services in the field of road and civil engineering, from small patching and trenching to complex construction projects.

Hiltbrand Marcel 

Weissenburg · Since 2008

The company's core activity is the provision of construction services, particularly in the fields of civil engineering, deep foundation, transportation, core drilling, concrete well construction, river engineering/rehabilitation and blasting work. The company also offers consulting services for construction projects.

H. Kuhn Hoch- und Tiefbau AG 

Sils/Segl Maria · Since 1979

H. Kuhn Hoch- und Tiefbau AG is a construction company offering building and civil engineering services, natural stone work and renovation services. Its scope of work includes new construction, conversions and restorations, earthworks and foundation work, stone cladding and paving, plastering, drywall and façade insulation.