- Business
- ACS, Actividades de Construcción y Servicios, S.A. ACS Actividades de Construcción y Servicios SA (ACSAY) is a Spain-based global leader in infrastructure development, engineering, civil construction and services. Founded in 1997 and headquartered in Madrid, the company operates through key subsidiaries including Dragados, Hochtief, CIMIC Group, Iridium and Clece, providing civil engineering projects such as highways, railways, airports, marine works and high-speed transportation; building construction encompassing residential, non-residential and advanced facilities like data centers, biopharma plants, electric vehicle battery factories and defense infrastructure; industrial services in electricity, gas, water distribution networks, telecommunications, mining operations and renewable energy systems; comprehensive maintenance, cleaning, security and logistics for buildings, public spaces and urban infrastructure; and concession development for transport, energy, water and real estate assets, targeting public-private partnerships across North America, Europe, Asia-Pacific, Australia, Canada and over 70 countries worldwide with approximately 144,000 employees. ACS generates revenue primarily from its Construction segment via Turner, CIMIC and Engineering & Construction units; Services through Clece; and Infrastructure concessions, reporting first-half 2025 sales of €24.1 billion (up 28.6% year-over-year), EBITDA of €699 million (up 51.7%) and a record backlog exceeding €89 billion driven by advanced technology and high-growth sectors. Recent strategic developments include the 2024 integration of Dragados North America and Flatiron into FlatironDragados, creating the second-largest U.S. civil contractor with a $17.2 billion backlog and 61.8% ACS ownership alongside Hochtief; the acquisition and integration of Ireland's Dornan Group by Turner to bolster mechanical, electrical and advanced technology capabilities in Europe; full consolidation of Thiess mining services under CIMIC; a November 2025 joint venture with Global Infrastructure Partners forming a €2 billion data center and energy platform; and robust new contract awards totaling €31.7 billion in first-half 2025, emphasizing digital infrastructure, critical minerals and defense projects.