Our Team

Founded in 1906, Clark Construction Group, LLC is a privately-held national firm with a portfolio of aviation work totaling $3.5 billion at 15 major airports across the United States. Having constructed more than $28 billion of construction manager at-risk projects, Clark is an expert with at-risk construction delivery with the proven processes to align the design and constructability of the O’Hare Terminal 3 Improvements project with CDA’s budget, schedule, operational, and safety goals.

Established in 1925, W.E. O’Neil Construction Company is an award-winning, 100% employee-owned, nationally ranked general contractor and construction manager. The team understands the unique requirements of aviation projects, having built state-of-the-art airport and hangar facilities across the nation. From high-end private terminals, spacious hangars, welcoming lobbies, passenger lounges, and comfortable resting areas for pilots, and flight simulators, to high-tech weather and flight planning areas—the team has the experience to build a facility that is both functional and timeless.

Cotter Consulting has served as a trusted consultant for over 25 years on several large programs and infrastructure projects at O’Hare, Midway, and General Mitchell Airports. They have demonstrated their ability to provide construction management services on various programs and projects and have the depth and breadth of resources to respond to their clients.