Civil Engineering

Colas Suisse SA 

Lausanne · Since 2010

Colas Suisse SA is the holding company of a group that provides construction, maintenance and engineering services for transport infrastructure, including roadworks, earthworks, bridges and tunnels, asphalt production, recycling and specialised services (equipment rental, asset management, R&D).

Colas Suisse SA, succursale du canton de Fribourg 

Léchelles · Since 2023

Colas Suisse SA, succursale du canton de Fribourg is an entity of the Colas group providing construction and maintenance services for transport infrastructure. Its activities include road construction, urban development works, recycling, and products and innovations related to asphalt and construction materials.

Colas Suisse SA, succursale de Satigny 

Satigny · Since 2010

Colas Suisse SA, succursale de Satigny is a branch of Colas Suisse providing construction, maintenance and repair services for transport and road infrastructures as well as urban development works. The branch operates within the group and is connected to related services such as asphalt products and recycling solutions offered by the group's entities.

Colas Suisse SA, succursale Ticino 

Rivera · Since 2021

Colas Suisse SA, succursale Ticino carries out design, construction and maintenance of transport infrastructure and related civil works, including road surfacing, earthworks, pipelines and structural repairs.

csc costruzioni sa 

Lugano · Since 2005

csc costruzioni sa is a construction company providing design and execution services for building, civil engineering and underground works. It operates as a general/total contractor across sectors including data centres, building construction and infrastructure, is part of the Webuild group and holds ISO 9001, 14001 and 45001 certifications.

De Zanet AG 

Kaltbrunn · Since 1995

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.

ERNEST GABELLA S.A. 

Yverdon-Les-Bains · Since 1945

The core activity of Ernest Gabella SA encompasses the planning and execution of construction projects in various fields, particularly: Building: construction of buildings, industrial facilities and other structures; Civil engineering: planning and execution of infrastructure projects such as roads, bridges, sewage systems and other civil engineering works; Transformation and renovation: renovation and refurbishment of existing buildings and facilities; Road construction: construction and maintenance of roads and highways; Small works: execution of smaller construction projects and repair work. The company thus offers a wide range of services in the construction sector and operates in the region of Yverdon-les-Bains, Jura-Nord Vaudois and surrounding areas.

Gass Dienstleistungen GmbH 

Oltingen · Since 2019

The core activity of GASS Dienstleistungen GmbH is the provision of construction and environmental services, including the planning and execution of construction projects, as well as the provision of services in the field of construction economics. The company positions itself as a family business, focusing on the personal and individual implementation of its customers' wishes.

Guy Monnet & Fils SA 

Isérables · Since 2009

The core activity of Guy Monnet & Fils SA encompasses various services in the construction and infrastructure sector, specifically: Transportation: Goods and materials transportation; Civil engineering: Planning and execution of infrastructure projects, such as roads, bridges, and buildings; Earthworks: Site preparation and excavation; Masonry: Execution of masonry work and building construction; Exterior design: Design and execution of outdoor spaces, such as parks, gardens, and squares; Material revaluation: Recycling and reuse of construction materials; Demolition: Building and structure demolition; Snow removal: Snow removal and winter maintenance; Spider excavators: Use of specialized heavy machinery for work in difficult terrain; Waterways: Design and execution of watercourses and riverbank works; Pedestrian paths: Construction and maintenance of footpaths and hiking trails. The company thus offers a wide range of services in the construction and infrastructure sector.

Hans Renggli Bau AG Malters 

Malters · Since 1975

The core activity of HR Bau AG is road construction, civil engineering and hydraulic engineering.

Karl Vögele Hoch- und Tiefbau AG 

Leuggern · Since 2013

The core activity of TE Web GmbH is the creation of websites and online shops for small and medium-sized enterprises, as well as the provision of services in the areas of web design, web development and online marketing.

Meier + Jäggi AG Zofingen 

Zofingen · Since 1994

The core activity of Meier+Jäggi AG primarily encompasses infrastructure construction, particularly track construction and track foundation construction as well as special civil engineering. This includes, among other things, the creation and renovation of railway crossings, platforms, noise barriers and mast foundations, the maintenance of tracks, and the execution of special civil engineering works such as groundwater lowering, anchoring, bored pile walls, pipe jacking and hydraulic engineering.

Pizzarotti SA 

Lugano · Since 1994

Pizzarotti SA is a construction company engaged in the execution of infrastructure projects, railway works, tunnelling and other underground works. It also provides building construction, plant and prefabrication services and holds ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 certifications.

RAYMOND RITHNER S.A. 

Monthey · Since 1980

RAYMOND RITHNER S.A. is one of the companies merged into RITHNER SA. The group provides civil engineering and earthworks, transport and demolition services, crushing and recycling of materials, exterior landscaping and rental of construction machinery.

RITHNER SA 

Monthey · Since 1960

RITHNER SA provides civil engineering and construction services including earthworks, transport, demolition, and crushing and recycling of materials. The company also performs exterior and urban landscaping works, offers construction equipment rental, and is affiliated with the Société Suisse des Entrepreneurs (SSE) and the Association Valaisanne des Entrepreneurs (AVE).

Rudolf Stüssi AG 

Dällikon · Since 1962

Rudolf Stüssi AG manufactures prefabricated concrete elements and provides planning, production, delivery and assembly services for construction projects in building and civil engineering as well as industrial and commercial sectors. Products and services include facade elements, parapets, stairs, walls/sandwich elements, lift shafts, modular room units and technical consulting on element division, feasibility and surface selection.

TRÜSSEL AG 

Huttwil · Since 1993

The core activity of Trüssel AG is a construction company specializing in building construction, civil engineering, environmental work, architecture and dump truck rental. The company offers a wide range of services, including construction work, masonry, road construction, landscaping, sanitary installations and machine rental.

Valli AG Strassenbau 

Aarau · Since 2007

The core activity of Valli AG is road construction. The company offers services in the field of road construction, including the recycling of reclaimed asphalt, and has specialized equipment such as steam rollers.

Weilenmann AG Kempttal 

Effretikon · Since 1972

The core activity of Weilenmann AG is general contracting, particularly renovation, new construction and refurbishment of buildings, as well as civil engineering and customer-specific projects in the regional area, mainly in the Zurich Oberland and Winterthur region.

Willi Bau AG 

St. Gallen · Since 2001

Willi Bau AG is a construction company offering building and civil engineering works, demolition and system waterproofing. The company combines demolition, excavation and builder services and delivers projects for residential, commercial and public clients, including core drilling and concrete repair.