As a global leader in its field, Colas designs, builds and maintains transport infrastructure responsibly. Colas operates in over 50 countries worldwide through a network of 1,000 profit centres and 3,000 construction materials (aggregates, asphalt mixes, binders, bitumen, etc.) production and recycling units.  

Being the world leader in innovative, sustainable mobility solutions 

Colas’ almost 65,000 employees work in their local communities to bring people closer together and facilitate interaction for the world of today and tomorrow. 

In the heart of communities, its transport infrastructure bridges the gap between essential day-to-day activities and the challenges of a global scale linked to climate change and the environment. 

Colas’ people listen to the needs and expectations of their clients, users and partners, and put their know-how and innovations into practice to design and build high-performance, environmentally-friendly infrastructure. 

Construction and maintenance

Production, distribution, sale and recycling of aggregates, emulsions, asphalt mixes, ready-mix concrete and bitumen, and recycling activities.

Design, construction, upgrading and maintenance of rail networks.

u003cstrongu003eMAGu003c/strongu003eAZINE

INNOVATIVE AND SUSTAINABLE SOLUTIONS

65,000

across 50

Bangkok International Airport extension (Thailand)

© Colas – Julien Cresp

Chantiers de pistes d'atterrissage d'avions avec un avion décollant dans le fonds
Chantier avec à gauche une forêt et à droite des immeubles d'habitation.

Construction of the Bus Rapid Transit (BRT) line in Cayenne (France)

© Colas – Sylvain Moret

Construction of Line 15 South (eastern sector) for the Grand Paris major infrastructure programme (France)

© F. Bouriaud

Tunnel de métro avec des ouvriers

Renovation of Highway 401 in Toronto (Canada)

© Colas – Nick Wons

Skills patronage programme at the Jardin des Tuileries park in Paris (France)

© Valentina Camu

Chantier dans le jardin des Tuileries à Paris. Des ouvriers travailles sur l'aménagement des espaces.
Des ouvriers travaillent sur des lignes électriques pour le chantier du busway de Casablanca

Construction of tram lines T3 and T4 in Casablanca (Morocco)

©Colas – Jean-Michel Ruiz

Resurfacing of Sterling Highway in Alaska (US)

© Colas – Landing Cooper

Chantier d'une route dans une vallée avec des forêts autour et des montagnes

Construction of a section of the M83 expressway (Hungary)

© Colas

Multi-year road-maintenance contracts (Finland)

© Colas