ACS Infrastructure is a wholly owned subsidiary of the ACS Group, one of the largest infrastructure construction companies and developers in the world. The ACS Group brings the expertise of over 150,000 employees spread across over 50 countries. In 2025, Engineering News-Record (ENR) ranked ACS Group #1 in the Top 250 International Contractors, consolidating the company as the world’s largest international contractor.

Driven by next-generation projects, ACS Group achieved international revenues of more than $49.9 billion in 2025. ACS has over 55 years of experience in developing, financing, operating, and maintaining highway, bridge, transit/rail, and social infrastructure projects, and has developed over 150 P3 projects globally.

ACCIONA Concessions is a leading global developer and operator of transportation and social infrastructure with a strong and expanding presence in North America. The company has been active in the region for over two decades, delivering major civil works, transportation, energy, and water projects across both the US and Canada. In the US specifically, ACCIONA Concessions has emerged as a key player in large-scale transportation concessions.

ACCIONA Concessions has extensive experience managing and maintaining complex roadway infrastructure projects, providing optimized, safe, and effective operation and maintenance solutions across more than 900 miles on 25 highway P3 contracts awarded over the last 30 years. ACCIONA Concessions’ track record across different sectors accounts for 56 concessions with assets, having invested over $50 billion in total.

Meridiam is a leading equity investor, developer, and long-term partner in more than 130 infrastructure projects in North America, Europe, and Africa. Meridiam specializes in greenfield infrastructure development with a long track record of delivering and operating complex projects with a whole-of-life approach. This success is based on fostering partnerships with public authorities to jointly design and deliver transformational infrastructure projects.

Meridiam’s unique 25-year fund life showcases its commitment to being a long-term partner with the public sector, and, unlike most financial investors, does not sell assets to generate returns. With global assets of approximately $23 billion under management (with a capital construction value that exceeds $87 billion), Meridiam has the distinct industry position of an “invest-and-hold” equity participant in transportation, social, and environmental P3 projects.

FlatironDragados is a leading heavy civil contractor in North America and the construction arm of the ACS Group, one of the world’s largest infrastructure and engineering organizations. With decades of combined experience, FlatironDragados delivers complex transportation infrastructure across the United States, with a strong focus on highways, bridges, express lanes, and major corridor improvements. Our national footprint, combined with deep regional expertise, allows us to successfully deliver projects in a wide range of environments, from dense urban corridors to challenging geotechnical and environmentally sensitive areas.

With a proven track record of delivering major highway infrastructure across North America, FlatironDragados brings the experience, resources, and collaborative approach necessary to successfully deliver complex transportation projects safely, efficiently, and with long-term value.

ACCIONA Construction is a global leader in the delivery of major transportation infrastructure, recognized for executing complex mega-projects with a strong focus on sustainability and innovation. With more than 100 years of experience, ACCIONA Construction has deep technical expertise and has participated in the design and construction of more than 6,300 miles of transportation infrastructure worldwide, including highways, bridges, tunnels, and rail systems.

With capabilities spanning the full infrastructure value chain, ACCIONA Construction supports projects from early design through construction and delivery, providing end-to-end solutions for complex transportation needs.

Arcadis is a trusted design and engineering partner in North America’s transportation sector, bringing more than 20 years of alternative delivery experience to major highway, express lane, and mobility programs. With more than 1,600 professionals across North America and a global team of 36,000, Arcadis delivers integrated mobility and infrastructure solutions that enhance connectivity and improve quality of life.

Arcadis maintains its North American Mobility headquarters in Atlanta, supported by over 380 local specialists. The firm has participated in more than 80% of GDOT’s design‑build and tolling projects, totaling more than $3.5 billion, including extensive work on interstate corridors, express lanes, and large regional mobility initiatives.