EKFB is a joint venture that combines the expertise of four major civil engineering and construction companies: Eiffage, Kier, Ferrovial Construction, and BAM Nuttall. This collaboration is primarily focused on delivering large-scale infrastructure projects, with a significant emphasis on innovation and efficiency.

In terms of sustainability, EKFB is committed to minimizing the environmental impact of its projects. The joint venture actively incorporates sustainable practices into its operations, such as reducing carbon emissions and promoting biodiversity. EKFB has implemented strategies to manage waste effectively and optimize resource use, aligning with industry standards for environmental responsibility.

EKFB's approach to sustainability is guided by comprehensive Environmental, Social, and Governance (ESG) criteria. The company strives to achieve high standards in these areas, although specific certifications or accreditations may not be extensively detailed in public resources. Nonetheless, EKFB's commitment to sustainability is evident in its project planning and execution, aiming to leave a positive legacy for future generations.