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Marco Infraestructuras y Medio Ambiente (MAINSA) is a company with a solid track record spanning more than 30 years, whose main activity is construction in all its forms. It stands out for its firm commitment to quality and its customers, operating with a motivated and efficient team and using the most advanced technical resources in its sector.

MAINSA focuses on offering comprehensive and innovative solutions, always seeking to establish long-term relationships based on trust.

The company has participated in major infrastructure projects at the national, regional and local levels. Its areas of expertise include:

• Civil engineering: execution of large public works such as roads and motorways.
• Agricultural infrastructure: specialised works since its inception, such as dams, canals, water supply, irrigation modernisation, etc.
• Railway works: strengthening its presence and level of specialisation in key works for the development of sustainable transport.
• Building: development of building projects, a continuously growing line of business.
• Environment: they develop environmental restoration projects and are committed to sustainable projects such as mine regeneration, the construction of wind and solar farms, and wastewater treatment plants.
• Services: they offer infrastructure conservation, cleaning and maintenance services for various government agencies.

MAINSA’s vision of development is strongly linked to preserving the environment and contributing to social improvement, with a series of values that define its daily work:

• Sustainability: integrated as a fundamental principle, it is embodied in its commitment to sustainable projects.
• Innovation: continuously implementing innovative processes and products.
• Commitment to talent and training: they consider the development and expansion of their staff’s knowledge to be fundamental, as well as the incorporation and training of young talent.
• Equality: fostering diversity and promoting the incorporation of female staff.

The backing of a Group to reliably tackle the infrastructure of the future.

MAINSA is part of Grupo Marco and benefits from synergies with other companies in the Group that specialise in their sectors, forming a conglomerate capable of guaranteeing sustainability and responding to all large-scale infrastructure needs.

Grupo Marco includes companies such as:

• Vials i Medi Ambient (VIMASA): dedicated to civil engineering and construction in Catalonia.
• General de Maquinaria y Excavación (GME): specialised in earthmoving with the most advanced machinery.
• Transportes Especiales (TRAMAR): a company that transports large beams, machinery and special parts. It also has cranes.
• Reciclados del Pirineo: a construction material recycling company.
• Prohabitat: residential, office and industrial real estate projects.
• ITM Water Systems: company dedicated to the design of special parts for hydraulic works and irrigation filters.
• Aridos y Plantas (ARIPLAN): extraction, manufacture and marketing of aggregates.
• Alvipre: manufacture of prefabricated concrete parts and their assembly on site. They are leaders at national and international level.
• Mineral Products for Industry (PROMINDSA): extraction, processing and supply of iron oxides for industry. It is one of the world’s leading producers of inorganic pigments.
• Indutec Instalaciones y Energía: construction company specialising in large facilities and renewable energy projects.
• Voladuras y Explosivos (VOLEX): specialising in drilling and blasting in quarries, mining, tunnels, etc.